Reducing content of volatile compounds of stabilised compositions based on polypropylene and talc using specific acid medium

FIELD: chemistry.

SUBSTANCE: present invention relates to use of carbonyl compounds to reduce content of emissions from a polymer in the space over a product in accordance with VDA 277 requirements, preferably for reducing emissions of 2-methyl-propene in the space over a product in accordance with VDA 277 requirements. The carbonyl compounds are selected from a group comprising an aromatic carboxylic acid with value of pKa measured in dimethylsulphoxide (DMSO) of at least 10.5, a fatty acid amide and a fatty acid ester.

EFFECT: use of said carbonyl compounds in the polymer composition reduces weight content of emissions in the space over a product, particularly emission of 2-methyl-1-propane according to VDA 277 by at least 30%.

17 cl, 1 tbl

 

The present invention relates to compositions based on polypropylene, which is composed of organic antioxidants, and to the use of specific carbonyl compounds in the composition.

Polypropylene is a commonly used material. For example, in combination with talc polypropylene is used as the substrate blister packs, as well as in the interior elements of the vehicle. Generally speaking, these compositions based on polypropylene and talc are well processed and can be made to individual orders. However, such materials must also demonstrate long-term stability in terms of environmental influences, for example, they must resist oxidative degradation, to support specially selected properties of compositions based on polypropylene and talc at the required level. Accordingly added antioxidants to resist degradation compositions based on polypropylene and talc. But the antioxidants under the action of external loads, which can also be the cause of unpleasant odors, show instability. Over the past years the standard requirements for long-term stability constantly increased, which, in turn, has led to an increase in the amount of additives, providing, for example, heat is donosti and/or improved mechanical properties. On the other hand, this increasing number of additives increases the risk of adverse reactions. In particular, in the case of degradation of antioxidants such side reactions lead to side products, which are often volatile. Of course, the number of volatile compounds should be kept at a low level, since, in particular, it is not acceptable for customers.

Thus, the purpose of the present invention is to reduce the number of volatile compounds, in particular volatile compounds in the compositions of polypropylene, incorporating talc and organic antioxidants. In particular, there is a desire to reduce the number of allocations in the space above the product in accordance with the requirements of VDA 277.

The first conclusion of this invention is that the formation of volatile compounds mainly is quite rapid degradation of organic antioxidants. The second conclusion is that the present invention is that the degradation of antioxidants can be suppressed carboxylic acids and their derivatives with the number of carbon atoms from 5 to 30, in accordance with the preferred embodiment of the present invention, carboxylic acids and their derivatives with the number of carbon atoms from 5 to 30 with fairly low acidity, it eats the pKa values, equal to at least 10, as measured in dimethyl sulfoxide (DMSO).

Accordingly, the present invention relates to the use of carbonyl compounds (D) to reduce secretions of the polymer in the space above the product in accordance with the requirements of VDA 277, in accordance with the preferred embodiment of the present invention to reduce secretions of 2-methyl-propene in the space above the product in accordance with the requirements of VDA 277, for example, polymeric compositions, with carbonyl compounds (D) selected from the group composed of an aromatic carboxylic acid (D) with pKa values measured in dimethyl sulfoxide (DMSO), equal, at least 10,5; fatty acid amide (D2); and an ester of fatty acids (D3).

More specifically, the present invention relates to the use of the above-mentioned carbonyl compounds (D) to reduce secretions of the polymeric composition in the space above the product in accordance with the requirements of VDA 277, in accordance with the preferred embodiment of the present invention to reduce secretions of 2-methyl-propene in the space above the product in accordance with the requirements of VDA 277, in addition to the carbonyl compounds (D) in the composition of these compositions is polypro is (A), talc (C), organic antioxidants (C), and possibly phosphorous antioxidants (E). For a more detailed information about the individual components of these compositions, in which the carbonyl compounds (D) are used to reduce the number of allocations in the space above the product.

The present invention also relates to a composition based on a polymer, which includes

(a) a polypropylene (A),

(b) talc (B)

(c) organic antioxidants (C)

(d) carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), carboxylic acid amide (D2and an ester of carboxylic acid (D3),

provided that the pKa value of the carbonyl compounds (D), measured in dimethyl sulfoxide (DMSO), equal to at least 10.5 and

(e) may phosphorous antioxidants (E).

In accordance with a preferred embodiment of the present invention, the carboxylic acid (D1) is an aromatic carboxylic acid and/or carboxylic acid amide (D2) is used fatty acid amide (D2), and/or as a complex ester of carboxylic acid (D3) is an ester of fatty acids (D3).

In another case, a new polymer composition can be defined as a polymer component is ice, which includes

(a)a polypropylene (A),

(b) talc (B)

(c) organic antioxidants (C)

(d) carbonyl compounds (D)selected from the group composed of an aromatic carboxylic acid (D1with pKa values measured in dimethyl sulfoxide (DMSO), equal to at least 10,5, fatty acid amide (D2and an ester of fatty acids (D3and

(e) may phosphorous antioxidants (E).

In accordance with still more preferred embodiment of the present invention features a polymeric composition composed of a polypropylene (A) and additionally

(a) 1000-550000 parts per million of talc (B)

(b) 100-5000 parts per million of phenolic antioxidants (C)

(c) 100-8000 parts per million carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), in accordance with the preferred embodiment of the present invention, the aromatic carboxylic acid (D1), carboxylic acid amide (D2), in accordance with the preferred embodiment of the present invention fatty acid amide (D2), and an ester of carboxylic acid (D3), in accordance with the preferred embodiment of the present invention an ester of fatty acids (D3), is possible if the conditions is, what is pKa carbonyl compounds (D), measured in dimethyl sulfoxide (DMSO), equal to at least 10,5,

(d) may 100-5000 parts per million of phosphorus-containing antioxidant (s), the rest is polypropylene.

Typically 1 part per million of the additive complies with the addition of a mass of 1 mg of the composition by weight of 1 kg

In accordance with a preferred embodiment of the present invention in the composition of the polymer composition does not contain spatial-employed amine light stabilizers (F).

It has been unexpectedly found that the above composition shows a significant reduction of discharge in the space above the product, in particular, it demonstrates a significant reduction in discharge 2-methyl-1-propene compared to compositions based on polypropylene, which include talc and organic antioxidatic, but not the carbonyl compounds (D), as proposed in this invention, in particular not aromatic carboxylic acid (D1with pKa values measured in dimethyl sulfoxide (DMSO), equal to at least 10.5 and/or fatty acid amide (D2), and/or an ester of fatty acids (D3) (see table 1). This decrease in discharge in the space above the product is achieved in the presence of carbonyl compounds (D), but not in the presence of other possible candidates, Narimanyan.

Below is a more detailed description of the present invention.

As the polypropylene (A)used in the composition based on polypropylene of the present invention, can be any polypropylene, in particular polypropylene, suitable for automobile interior parts and/or backing for blister packaging. Thus, in accordance with the preferred embodiment of the present invention in the composition of the polypropylene (A) is heterophase copolymer of propylene (A'). System heterophase polypropylene are known systems and get them, in particular at least in a two-stage processes, the output of which get a multiphase structure comprising a polypropylene matrix (A1), in accordance with the preferred embodiment of the present invention isotactic polypropylene matrix (A1), and dispersed inclusions, which include amorphous elastomer (A2). Such systems can easily be customized under the present requirements by adjusting the content of co monomer in the polypropylene matrix (A1and in amorphous elastomer (A2) respectively. MFR2such heterophase propylene copolymer (A') may be in the range from 2.0 to 80,0 g/10 min, in accordance with bol is E. the preferred embodiment of the present invention in the range of from 5.0 to 50.0 g/10 min, in accordance with still more preferred embodiment of the present invention in the range of 7.0 to 20.0 g/10 minutes is Usually amorphous elastomer (A2such heterophase propylene copolymer (A') is ethylene-propylene rubber (EPR) (A2). As the polypropylene matrix (A1can be either a homopolymer of propylene or a copolymer of propylene with preference given to the latter. The total mass content of the co monomer, in accordance with the preferred embodiment of the present invention ethylene is in the range or 2 to 25% of the total number heterophase propylene copolymer (A'). Mass soluble in xylene substances may be in the range from 10 to 40%, in accordance with the preferred embodiment of the present invention is from 15 to 30%.

Of course, in addition heterophase propylene copolymer (A') in the polypropylene composition (A) may optionally include high density polyethylene (HDPE) with a density of, for example, in the range from 0,954 to 0,966 g/cm3and the rate of melt flow (MFR2at 190°C) from 0.1 to 15.0 g/10 min in Addition, the polypropylene composition (A) may also include additional ethylene-propylene, Kauchuk (EPR), copolymers of ethylene and propylene and/or copolymers of ethylene and octene.

However, in accordance with predpochtitel the first embodiment of the present invention the polypropylene (A) is the only polymer component in the polymer composition of the present invention. In accordance with a preferred embodiment of the present invention, the mass content of the polypropylene (A) in the composition is, but at least 50,0%, in accordance with the preferred embodiment of the present invention, at least 60.0%of in accordance with still more preferred embodiment of the present invention, at least 70.0%of in accordance with still more preferred embodiment of the present invention, at least 75,0%.

In addition to the polypropylene present invention, in particular, is determined by the additives.

Accordingly, for use in the aforementioned applications in the composition of the polymer compositions of the present invention should include talc (In). Talc (C) is typically used to ensure crystallization of the polymer material. It can also be used as reducing shrinkage additives and/or reinforcing agent. In any case, in the above-mentioned applications, the talc (C) has been recognized as a mandatory part of compositions based on polypropylene. Talc (C) is a mineral composed of hydrated magnesium silicate, and may include a small number of residues, such as iron oxide (FeO) and/or iron silicate. In the General case the mass of the residue does not exceed 5.0 percent. Thus, with regard to the availa able scientific C with the preferred embodiment of the present invention in the mass composition of the talc (C) is from 0.1 to 3.5%, in accordance with the preferred embodiment of the present invention is from 0.1 to 3.0% of the residues, i.e. iron-containing residues, such as iron oxide or silicate of iron. Of course, the talc (C) can also be talc-chlorite in the form of a commercially available product "Stimik E1 CA" ("Steamic T1 SA) company Luzenac (Luzenac).

In accordance with a preferred embodiment of the present invention the particle size (d50%) of talc (C) is less than 3.0 mm (d50% indicates that the particle size of 50% of the talc is less than 3.0 mm), and/or particle size (d98%) less than 15,0 µm (d98% indicates that the particle size of 98% of the talc is less than 15,0 µm), in accordance with the preferred embodiment of the present invention the particle size (d50%) is less than 2.0 μm and/or particle size (d98%) is less of 10.0 μm, in accordance with still more preferred embodiment of the present invention the particle size (d50%) leaves less than 1.0 μm, and/or particle size (d98%) is less than 5.0 µm.

As additional additives it is necessary to use an organic antioxidants (C). Antioxidants are necessary to retard oxidative degradation of polypropylene. But antioxidants can exhibit instability in case of contact with other additives. In this case, there is ALOS, that organic antioxidants very quickly degrade in the composition based on polypropylene, which includes talc. Degradation of organic oxidants can very easily subtract the discharge in the space above the product in accordance with the requirements of VDA 277. Spectrum emission shows degradation products (for example, 2-methyl-1-propene), arising from organic antioxidants. Such degradation products is undesirable. If not refer to theory, the catalyst for the degradation of organic antioxidants may serve as talc and/or dispersed remnants. On the other hand, in these applications it is impossible to refrain from any use of talc or the use of organic antioxidants, as this would impair other properties of the polymer compositions required in the technique, as it opisyvaya in this invention. Thus, as stated above, organic antioxidants (C) must be present in the polymeric compositions of the present invention.

Among the preferred organic antioxidants (C) include phenolic antioxidants (C').

The term "phenolic antioxidant (C') in this invention refers to any compound capable of slowing or preventing the oxidation of the polymer component, i.e. polypropylene. In addition, such phenolic antioxidants (C') to the wives, of course, to include phenolic residue.

The best results can be achieved if the phenolic antioxidants (C') the steric blokirovana. According to this invention, the term "sterically blocked" means that the hydroxyl group (BUT) phenolic antioxidants (C') is surrounded by steric alkyl residues.

In accordance with a preferred embodiment of the present invention phenolic antioxidants (C') include the balance of the formula (I)

where R1is located in a position ortho or meta with respect to the hydroxyl group, and R1is (CH3)3C-, CH3- or N, in accordance with the preferred embodiment of the present invention - (CH3)3With-, and

A1is the remaining part of phenolic antioxidant (C') and in accordance with the preferred embodiment of the present invention is located in the para-position relative to the hydroxyl group. In accordance with a preferred embodiment of the present invention phenolic antioxidants (C') comprise the balance of the formula (Ia)

where R1is (CH3)3C-, CH3- or N, in accordance with the preferred embodiment, altoadige the invention, (CH3)3With-, and

A1is the remaining part of the phenolic antioxidant (C').

In accordance with a preferred embodiment of the present invention A1located in the para-position relative to the hydroxyl group.

In addition, in accordance with the preferred embodiment of the present invention the molecular weight phenolic antioxidants (C') must exceed a certain molecular weight. Thus, in accordance with the preferred embodiment of the present invention the molecular weight phenolic antioxidants (C') must exceed 785 g/mol, in accordance with the preferred embodiment of the present invention should not exceed 1100 g/mol. On the other hand, the molecular weight should not be too large, i.e. not more than 1300 g/mol. In accordance with a preferred embodiment of the present invention, this range should be from 785 to 1300 g/mol, in accordance with the preferred embodiment of the present invention is from 1000 to 1300 g/mol, in accordance with still more preferred embodiment of the present invention is from 1100 to 1300 g/mol.

In addition, phenolic antioxidants (C') may optionally be determined mass content of phenolic ostad is in, in particular, the mass content of phenolic residues according to formula (I) or (Ia). Thus, phenolic antioxidants (C') may include 1, 2, 3, 4 or more phenolic residues, in accordance with the preferred embodiment of the present invention 1, 2, 3, 4 or more phenolic residue in the formula (I) or (Ia).

In addition, in the composition of phenolic antioxidants (C') consists mainly of only carbon atoms, hydrogen atoms and a minor amount of oxygen atoms, which is determined mainly by the presence of hydroxyl group (BUT) phenolic residues. However, phenolic antioxidants (C') can include additional insignificant number of atoms N, S and P. In accordance with the preferred embodiment of the present invention phenolic antioxidants (C') is composed only of atoms of C, H, O, N and S, in accordance with the preferred embodiment of the present invention phenolic antioxidants (C') consist only of C, H and O. As stated above, the phenolic antioxidants (C') can be quite large molecular weight. Large molecular weight is an indicator of several phenolic residues. Thus, in particular, it should be understood that the phenolic antioxidants (C') include 4 or more, particularly 4, phenolic residue, for example f is Nonny residue according to formula (I) or (Ia).

As the most suitable phenolic antioxidants (C') were recognized compounds that includes, but is at least one residue of formula (II)

where

R4is (CH3)3C-, CH3-or N, in accordance with the preferred embodiment of the present invention - (CH3)3With-, and

And2is the remaining part of the phenolic antioxidant (C').

Given the above requirements, phenolic antioxidants (C') in accordance with the preferred embodiment of the present invention are selected from the group which includes

2,6-di-tert-butyl-4-METHYLPHENOL (CAS No. 128-37-0; M 220 g/mol),

pentaerythrityl-tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (CAS No. 6683-19-8; M 1178 g/mol),

octadecyl 3-(3',5'-di-tert-butyl-4-hydroxyphenyl)propionate (CAS No. 2082-79-3; M 531 g/mol)

1,3,5-trimethyl-2,4,6-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (CAS No. 1709-70-2; M 775 g/mol),

2,2'-thiodiethanol(3,5-di-tert.-butyl-4-hydroxyphenyl)propionate (CAS No. 41484-35-9, M 643 g/mol),

calcium bis(ethyl 3,5-di-tert-butyl-4-hydroxymethylphosphonate) (CAS No. 65140-91-2; M 695 g/mol),

1,3,5-Tris(3',5'-di-tert.-Putilov 4'-hydroxybenzyl)-isocyanurate (CAS No. 27676-62-6, M 784 g/mol),

1,3,5-Tris(4-tert. butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-Trion (CAS No. 40601-76-1, M 813 g/mol),

bis(3,bis(3'-tert-butyl-4'-hydroxyphenyl)butane acid)glycolether (CAS No. 32509-66-3; M 794 g/mol),

4,4'-THIOBIS(2-tert-butyl-5-METHYLPHENOL) (CAS No. 96-69-5; M 358 g/mol),

2,2'-methylene-bis-(6-(1-methyl-cyclohexyl)-para-cresol) (CAS No. 77-62-3; M 637 g/mol),

3,3'-bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenediamine (CAS No. 23128-74-7; M 637 g/mol),

2,5,7,8-tetramethyl-2-(4',8',12'-trimethylacetyl)-chroman-6-ol (CAS No. 10191-41-0; M 431 g/mol),

2,2-ethylidene(4,6-di-tert-butylphenol) (CAS No. 35958-30-6; M 439 g/mol),

1,1,3-Tris(2-methyl-4-hydroxy-5'-tert-butylphenyl)butane (CAS No. 1843-03-4; M 545 g/mol),

3,9-bis(1,1-dimethyl-2-(beta-(3-tert-butyl-4-hydroxy-5-were)propionyloxy)ethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane (CAS No. 90498-90-1; M 741 g/mol),

1,6-hexanediol-bis(3,5-bis(1,dimethylethyl)-4-hydroxybenzoyl)propanoate) (CAS No. 35074-77-2; M 639 g/mol),

2,6-di-tert-butyl-4-Nonylphenol (CAS No. 4306-88-1; M 280 g/mol),

4,4'-butylidene(6-tert-butyl-3-METHYLPHENOL (CAS No. 85-60-9; M 383 g/mol);

2,2'-methylene bis(6-tert-butyl-4-METHYLPHENOL) (CAS No. 119-47-1; M 341 g/mol),

triethylene glycol-bis-(3-tert-butyl-4-hydroxy-5-were)propionat (CAS No. 36443-68-2; M 587 g/mol),

a mixture of linear or branched (C13-C15) alkyl complex esters of 3-(3',5'-di-1-butyl-4'-hydroxyphenyl)propionic acid (CAS No. 171090-93-0; 485 Mw g/mol),

6,6'-di-tert-butyl-2,2'-titin-cresol (CAS No. 90-66-4; M 359 g/mol),

diethyl-(3,5-di-tert-butyl-4-hydroxybenzyl)phosphate (CAS No. 976-56-7; M 356 g/mol),

4,6-bis(actitioner)-o-cresol (CAS No. 110553-27-0; M 425 g/mol),

benzoylpropionate acid, 3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-, linear or branched (C7-C9) alkyl complex esters (CAS No. 125643-61-0; Mw 399 g/mol),

1,1,3-Tris[2-methyl-4-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxy]-5-tert-butylphenyl]butane (CAS No. 180002-86-2; M 1326 g/mol),

mixed-modified styrene phenols (M approximately 320 g/mol; CAS No. 61788-44-1; M approximately 320 g/mol),

bottled, accelerandi phenols (M approximately 340 g/mol; CAS No. 68610-06-0; M about 340 g/mol), and

bottled reaction product of p-cresol and Dicyclopentadiene (700-800 Mw g/mol; CAS No. 68610-51-5, 700-800 Mw g/mol).

In accordance with the preferred embodiment of the present invention phenolic antioxidants (C') are selected from the group which includes

pentaerythrityl-tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (CAS No. 6683-19-8, M 1178 g/mol),

octadecyl 3-(3',5'-di-tert-butyl-4-hydroxyphenyl)propionate (CAS No. 2082-79-3, M 531 g/mol)

bis(3,3-bis(3'-tert-butyl-4'-hydroxyphenyl)butane acid) glycolether (CAS No. 32509-66-3, M 794 g/mol),

3,3'-bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenediamine (CAS # 23128 74-7, M g/mol),

3,9-bis(1,1-dimethyl-2-(beta(3-tert-butyl-4-hydroxy-5-were)propionyloxy)ethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane (CAS No. 90498-90-1, M 741 g/mol),

1,6-hexanediol-bis(3,5-bis(1,dimethylethyl)-4-hydrox the benzene)propanoate) (CAS No. 35074-77-2, M 639 g/mol),

triethylene glycol-bis-(3-tert-butyl-4-hydroxy-5-were)propionate (CAS No. 36443-68 2, M 587 g/mol),

a mixture of linear or branched (C13-C15) alkyl complex esters of 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionic acid (CAS No. 171090-93-0, 485 Mw g/mol),

benzoylpropionate acid, 3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-, linear or branched (C7-C9) alkyl complex esters (CAS No. 125643-61-0, Mw 399 g/mol),

In accordance with the preferred embodiment of the present invention as phenolic antioxidants (C') is used pentaerythrityl-tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (CAS No. 6683-19-8, M 1178 g/mol) by the formula (III)

In the composition of the polymer compositions of the present invention may include various organic antioxidants (C), for example phenolic antioxidants (C'), as in this invention, however, in accordance with the preferred embodiment of the present invention in the composition is only one type of organic antioxidant (C), for example phenolic antioxidants (C'), as proposed in this invention.

In addition to organic antioxidants (C) in the composition of the polymer compositions of the present invention includes one or more phosphorus-containing antioxidant (E). In accordance with a more predpochtitel the first embodiment of the present invention composition based on polypropylene includes only one type of phosphorus-containing antioxidant (E). Preferably the phosphorus-containing antioxidant (S) are selected from the group which includes

Tris(2,4-di-tert-butylphenyl)fosfat (CAS No. 31570-04-4; M 647 g/mol),

tetrakis-(2,4-di-tert-butylphenyl)-4,4'-biphenylene di phosphonic (CAS No. 38613-77-3; M 991 g/mol),

bis-(2,4-di-tert-butylphenyl)-pentaerythritol di postit (CAS No. 26741-53-7; M 604 g/mol).

di-stearyl-pentaerythrityl di postit (CAS No. 3806-34-6; M 733 g/mol),

Tris-nonylphenyl postit (CAS # 26523-78-4; M 689 g/mol),

bis(2,6-di-tert-butyl-4-were)pentaerythrityl di postit (CAS No. 80693-00-1; M 633 g/mol),

2,2'-Methylenebis(4,6-di-tert-butylphenyl)octyl-fosfat (CAS No. 126050-54-2; M 583 g/mol),

1,1,3-Tris(2-methyl-4-ditridecyl-5-tert-butylphenyl)butane (CAS No. 68958-97-4; M 1831 g/mol),

4,4'-butylidene(3-methyl-6-tert-butylphenyl di tridecyl)fosfat (CAS No. 13003-12-8; M 1240 g/mol),

bis-(2,4-dokumenter)pentaerythritol Deposit (CAS No. 154862-43-8; M 852 g/mol),

bis(2-methyl-4,6-bis(1,1-dimethylethyl)phenyl)complex ethyl ester of phosphoric acid (CAS No. 145650-60-8; M 514 g/mol),

2,2',2"-nitrilotriethanol-Tris(3,3',5,5'-Tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl)FOSFA) (CAS No. 80410-33-9; M 1465 g/mol),

2,4,6-Tris(tert-butyl)phenyl-2-butyl-2-ethyl-1,3-propanedioic (CAS No. 1617-17-32-4, M 450 g/mol),

2,2'-ethylidene-bis(4,6-di-tert-butylphenyl)perphosphoric (CAS No. 118337-09-0; M 487 g/mol),

6-(3-(3-tert-butyl-4-hydroxy-5-were)propoxy)-2,4,8,10-Tetra-tert-butyldibenzo[d,f][1.3.2]giocatore is Jn (CAS No. 203255-81-6; M 660 g/mol),

tetrakis-(2,4-di-tert-butyl-5-were)-4,4'-biphenylene di postit (CAS No. 147192-62-9; M 1092 g/mol), and

1,3-bis-(diphenylphosphino)-2,2-DIMETHYLPROPANE (CAS No. 80326-98-3; M 440,5 g/mol).

As the phosphorus-containing antioxidant (E) is particularly suitable organic phosphites, such as shown above.

In accordance with the preferred embodiment of the present invention the phosphorus-containing antioxidant (E) - Tris(2,4-di-tert-butylphenyl)fosfat (CAS No. 31570-04-4; M 647 g/mol).

As described above, the known compositions based on polypropylene, incorporating talc and organic antioxidants inherent in fairly rapid degradation of antioxidants. Without going into theory we can say that this rapid degradation may be caused by the presence of talc, and more importantly, the remains into powder. These residues can serve as a catalyst for the degradation of organic antioxidants. Thus, any means that can interfere with the catalytic activity of talc and/or his residues in the form of organic antioxidants, reduce the degradation process and minimize selection in the space above the product. In particular, it is found that the positive influence of the carbonyl compounds (D), for example carboxylic acid (D1), carboxylic acid amide (D2and/or is a false ether carboxylic acid (D 3).

In accordance with a preferred embodiment of the present invention, the pKa value of the carbonyl compounds (D), in accordance with the preferred embodiment of the present invention the preferred carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic acid (benzoic acid), carboxylic acid amide (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of fatty acids, is at least a 10.5. In particular, the value of pKa of the carbonyl compounds (D), in accordance with the preferred embodiment of the present invention carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic KIS lot (benzoic acid), carboxylic acid amide (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of fatty acid is in the range from 10.5 to 30, in accordance with the preferred embodiment of the present invention is in the range from 10.5 to 25.0,

Without going into theory we can say that the carbonyl compounds (D)used in the present invention, could the t to form a connection on the surface of talc and thus forming a kind of protective coating, the surrounding particles of talc. Such a bond can be covalent and/or ionic. Another possible explanation for the positive technical effect obtained when using the carbonyl compounds (D), is that they possess sufficient acidity to proteinopathy oxygen-rich surface of talc (b) and thus reduce its catalytic activity. On the other hand, the acidity is not so high as to lead to unwanted side effects caused by high levels of acidity. Accordingly, as used here carbonyl compounds (D) prevent contact of organic antioxidants (C) talc (In). Thus, any degradation caused by talc (C), or its remains, is minimized or avoided altogether.

Most frequently used are the aromatic carboxylic acid (D1), amides of fatty acids (D2and esters of fatty acids (D3).

If the new polymeric compositions include carboxylic acids (D1), the highest priority should be given benzoic acid.

If the new polymeric compositions include amides of carboxylic acids; (D2), in accordance with the preferred embodiment of the present invention amides of carboxylic acids (D2) including the indicate from 10 to 25 carbon atoms, in accordance with the preferred embodiment of the present invention is from 16 to 24 carbon atoms. In accordance with the preferred embodiment of the present invention amides of carboxylic acids (D2) are inorganic salts of fatty acids comprising from 10 to 25 carbon atoms, for example from 16 to 24 carbon atoms. In particular, amides of carboxylic acids (D2) are unsaturated. Thus, unsaturated amides of fatty acids such as unsaturated amides of fatty acids with the number of carbon atoms from 10 to 25, for example, in particular, from 16 to 24 carbon atoms, are particularly valuable. Thus, in accordance with the preferred embodiment of the present invention amides of carboxylic acids (D2) are selected from the group which includes 13-docosenoic (CAS No. 112-84-5), 9-octadecenamide (CAS No. 301-02-0), stearamide (CAS No. 124-26-5) and beginnig (CAS No. 3061-75-4). In accordance with the preferred embodiment of the present invention as carboxylic acid amide (D2) used 13-docosenoic (CAS No. 112-84-5).

If the new polymeric composition includes an ester of carboxylic acid (D3), for example an ester of a fatty acid, it should be understood that esters of carboxylic acids (D3) are esters of glycerol to form the s (IV)

where

n takes values from 5 to 25, in accordance with the preferred embodiment of the present invention is from 10 to 18.

In another case, esters of carboxylic acids (D3can be glycerol esters of formula (V-a) or (V-b)

where

n and m independently from each other are set to a value from 1 to 9, in accordance with the preferred embodiment of the present invention is from 4 to 8. In accordance with the preferred embodiment of the present invention, n and m are identical.

Thus, in accordance with the preferred embodiment of the present invention esters of carboxylic acids (D3) are selected from the group which includes glycerol monostearate, monolaurate of glycerol and 1,3-dihydroxypropyl-2-yl (Z)-octadec-9-ENOAT.

As proposed in this invention, the polymer composition of the present invention may include various carbonyl compounds (D), however, in accordance with the preferred embodiment of the present invention in the composition of this song is only one type of carbonyl compounds (D), as proposed in this invention. As proposed in this invention, in accordance the with the preferred embodiment of the present invention the polymer composition of the present invention includes, as the carbonyl compounds (D) it is only carboxylic acid (D 1), or carboxylic acid amide (D2), or an ester of carboxylic acid (D3).

Accordingly, it should be understood that in the bulk composition of this polymer composition is

(a) at least 50%, in accordance with the preferred embodiment of the present invention, at least 60%, in accordance with the preferred embodiment of the present invention, at least 70% of the polypropylene (A), for example heterophase propylene copolymer (A'),

(b) 1000-550000 parts per million, in accordance with the preferred embodiment of the present invention 50000-500000 parts per million, in accordance with the preferred embodiment of the present invention 100000-400000 parts per million, in accordance with still more preferred embodiment of the present invention 150000-300000 parts per million of talc (B)

(c) 100-5000 parts per million, in accordance with the preferred embodiment of the present invention 500-5000 parts per million, in accordance with the preferred embodiment of the present invention 500-3000 parts per million, in accordance with still more preferred embodiment of the present invention 200 to 1,000 parts per million of phenolic antioxidants (C), for example, pentaerythrityl-tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)impregnated is natov (CAS No. 6683-19-8; M 1178 g/mol),

(d) 100-8000 parts per million, in accordance with the preferred embodiment of the present invention 500-5000 parts per million, in accordance with the preferred embodiment of the present invention 500-3000 parts per million, in accordance with still more preferred embodiment of the present invention 800-3000 parts per million carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic acid (benzoic acid), carboxylic acid amide (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of a fatty acid (e.g., ester of glycerol according to the formulas (IV), (V-a) and (V-b)), as proposed in this invention, and

(e) may 100-5000 parts per million, in accordance with the preferred embodiment of the present invention 500-3000 parts per million, in accordance with the preferred embodiment of the present invention 500-1500 parts per million, in accordance with still more preferred embodiment of the present invention 1,000 to 1,500 parts per million of phosphorus-containing antioxidant (S), such as Tris(2,4-di-tert-butylphenyl)phosphite (CAS No. 31570-04-4; M 647 g/mol),

the rest is polypropylene.

Of course, the composition according to the present and the finding may include other additives, for example, calcium stearate and/or pigments, for example, in the form of masterbatches.

However, as, in particular, noted above, the composition of this polymer compositions do not contain spatial-employed amine light stabilizers (F).

According to the present invention as spatial-obstructed amine light stabilizers (F) can be used, in particular, derivatives of 2,6-alkyl-piperidine, for example derivatives of 2,2,6,6-tetramethyl-piperidine. Thus, it should be understood that the composition of this polymer compositions do not include derivatives of piperidine.

According to this invention the polymer composition is produced by extrusion of the polymer and, thus, by introducing additives, as mentioned in this invention. In accordance with a preferred embodiment of the present invention is used twin screw extruder such as twin screw extruder ZSK40. Polymer composition, granulated using a twin-screw extruder ZSK40 used in the test analysis of allocations in the space above the product in accordance with the requirements of VDA 277.

The present invention also relates to the use of this resin composition as a protective coating of vehicles and/or the substrate blister packaging, in particular, to reduce the deposits of discharge in the space above the product and bring the discharge into compliance with the requirements of VDA 277.

In addition, the present invention relates to the production, in accordance with the preferred embodiment of the present invention to automotive products, in accordance with the preferred embodiment of the present invention to products for the interior of vehicles, such as instrument panels, interior door panels, armrests or other elements of interior decoration, which include this polymer composition. In addition, the present invention relates to a blister pack, in particular to the substrate blister packaging, which includes a polymer composition according to the present invention.

Finally, the present invention relates to the use of carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic acid (benzoic acid), carboxylic acid amide (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of a fatty acid (e.g., ester of glycerol according to the formulas (IV), (V-a) and (V-b)), as proposed in this invention to reduce the quantity of discharge of the resin composition in the space above the product in accordance with the requirements of VDA 277, in particular to reduce emissions of 2-methyl-1-propene and when is edenia its content in accordance with the requirements of VDA 277, in accordance with a preferred embodiment of the present invention from a polymer composition, which includes talc, in accordance with the preferred embodiment of the present invention from a polymer composition, which includes talc and organic antioxidants. Thus, the present invention relates, in particular, to the use of carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic acid (benzoic acid), carboxylic acid amide (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of a fatty acid (e.g., ester of glycerol according to the formulas (IV), (V-a) and (V-b)), as proposed in this invention to reduce the quantity of discharge of the resin composition in the space above the product in accordance with the requirements of VDA 277, in particular to reduce emissions of 2-methyl-1-propene and bring its content in accordance with the requirements of VDA 277, the composition includes talc (b) and antioxidants (C), as proposed in this invention but not carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic acid is (benzoic acid), amide carboxylic acid (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of a fatty acid (e.g., ester of glycerol according to the formulas (IV), (V-a) and (V-b)). Accordingly, the use of carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), for example, aromatic carboxylic acid (benzoic acid), carboxylic acid amide (D2), for example, fatty acid amide, and ester carboxylic acid (D3), for example an ester of a fatty acid (e.g., ester of glycerol according to the formulas (IV), (V-a) and (V-b)) in the resin composition of the present invention should reduce the mass content of the discharge in the space above the product according to VDA 277, in particular, should reduce the allocation of 2-methyl-1-propene, at least 30%, in accordance with the preferred embodiment of the present invention, at least 40%, in accordance with still more preferred embodiment of the present invention, at least 45% and lead its mass content in accordance with the requirements of VDA 277, while the relative content is defined as follows:

Taking into account the above-mentioned information in the present invention analyzed the tsya, in particular, the following aspects.

[Paragraph 1] the Polymer composition, which includes

(a) a polypropylene (A),

(b) talc (B)

(c) organic antioxidants (C)

(d) carbonyl compounds (D)selected from the group which includes carboxylic acid (D1), carboxylic acid amide (D2and an ester of carboxylic acid (D3),

provided that the pKa value of the carbonyl compounds (D), measured in dimethyl sulfoxide (DMSO), equal to at least 10.5 and

(e) may phosphorous antioxidants (E).

[Paragraph 2] the Polymer composition according to [Paragraph 1], where the carboxylic acid (D1) is an aromatic carboxylic acid and/or carboxylic acid amide (D2) is used fatty acid amide (D2), and/or as a complex ester of carboxylic acid (D3) is an ester of fatty acids (D3).

[Paragraph 3] Polymer composition, which includes

(a) a polypropylene (A),

(b) talc (B)

(c) organic antioxidants (C)

(d) carbonyl compounds (D)selected from the group composed of an aromatic carboxylic acid (D1with pKa values measured in dimethyl sulfoxide (DMSO), equal to at least 10,5, fatty acid amide (D2and ester LM is Noah acid (D 3), and

(e) may phosphorous antioxidants (E).

[Para 4] the Polymer composition according to any one of the preceding [Paragraphs 1-3], while the composition of this song is

(a) 1000-550000 parts per million of talc (B)

(b) 100-5000 parts per million of phenolic antioxidants (C)

(c) 100-8000 parts per million carbonyl compounds (D), and

(d) may 100-5000 parts per million of phosphorus-containing antioxidant (E).

[Para 5] the Polymer composition according to any one of the preceding [Paragraphs 1-4], while the composition of the polymer composition does not contain spatial-employed amine light stabilizers (F).

[Para 6] the Polymer composition according to any one of the preceding [Paragraphs 1-5], while the composition of the polymeric composition includes, but is at least 50% polypropylene.

[Para 7] the Polymer composition according to any one of the preceding [Paragraphs 1-6], the polypropylene (A) used heterophase copolymer of propylene (A'), which includes polypropylene matrix (A1) and amorphous elastomer (A2).

[Para 8] the Polymer composition according to any one of the preceding [Paragraphs 1 to 7], while the composition of the talc (C) is composed of iron-containing residues, in accordance with the preferred embodiment of the present invention, the iron oxide (FeO) and/or silicate of iron.

[Paragraph 9] the Polymer composition is about any one of the preceding [Paragraphs 1 to 8], at the same time as organic antioxidants (C) are phenolic antioxidants (C'), in accordance with the preferred embodiment of the present invention is sterically blocked phenolic antioxidants (C').

[Para 10] the Polymer composition according to any one of the preceding [Paragraphs 1-9], the organic antioxidants (C) are phenolic antioxidants (C'), which include the balance of the formula (I)

where

R1is in a position ortho or meta with respect to the hydroxyl group, and R1is (CH3)3C-, CH3-or N, in accordance with the preferred embodiment of the present invention - (CH3)3With-, and

And1is the remaining part of the phenolic antioxidant (C').

[Para 11] the Polymer composition according to any one of the preceding [Paragraphs 1-10], the value of pKa of the carbonyl compounds (D)selected from the group composed of an aromatic carboxylic acid (D1), fatty acid amide (D2and an ester of fatty acids (D3), measured in dimethyl sulfoxide (DMSO)is not more than 30, in accordance with the preferred embodiment of the present invention is in the range from 10.5 to 30,

[Para 12] the Polymer to the position according to any one of the preceding [Paragraphs 1-11], the carbonyl compounds (D) used benzoic acid.

[Para 13] the Polymer composition according to any one of the preceding [Paragraphs 1-11], the fatty acid amide (D2) is an unsaturated fatty acid amide, in accordance with the preferred embodiment of the present invention is an unsaturated fatty acid amide comprising from 10 to 25 carbon atoms.

[Para 14] the Polymer composition according to any one of the preceding [Paragraphs 1-11], the complex ester of fatty acid (D3) is an ester of glycerin in the formula (IV)

where

n takes values from 5 to 25, in accordance with the preferred embodiment of the present invention is from 10 to 18.

[Para 15] the Polymer composition according to any one of the preceding [Paragraphs 1-11]. at the same time as complex fatty acid ester (D3) is an ester of glycerin in the formula (V-a) or (V-b)

where

n and m independently from each other are set to a value from 1 to 9, in accordance with the preferred embodiment of the present invention is from 4 to 8.

[Para 16] the Polymer composition according to any one of the preceding [Paragraphs 1-15], with a carbonyl compound (D) the choice is moved from the group which includes benzoic acid, glycerol monostearate (CAS - No 97593-29-83) and 13-docosenoic (CAS - No 112-84-5).

[Paragraph 17] To the use of carbonyl compounds (D) according to any one of the preceding [Paragraphs 1-16] to reduce the quantity of discharge of the polymer in the space above the product in accordance with the requirements of VDA 277, in accordance with the preferred embodiment of the present invention to reduce secretions of 2-methyl-propene in the space above the product in accordance with the requirements of VDA277.

[Paragraph 18] For use in accordance with [Paragraph 17], and the degradation of organic antioxidants (C) according to any one of the preceding paragraphs [Paragraph 1-16] decreases.

[Para 19] the use according to [Paragraph 17 or 18], while the carbonyl compounds (D) are part of the polymer.

[Para 20] the use according to any one of the preceding [Paragraphs 17-19], while the composition of the polymer is optionally talc (C), in accordance with the preferred embodiment of the present invention, the talc according to any one of the preceding paragraphs 1-16.

[Para 21] the use according to any one of [Paragraphs 17-20], while the carbonyl compounds (D) and organic antioxidants (C) are part of a polymeric composition according to any one of the preceding paragraphs 1-16.

[Paragraph 22] To use lubas [Paragraphs 17-21], in the polymer compositions of the carbonyl compounds (D) reduces the mass content of the discharge from the polymeric composition in the space above the product in accordance with the requirements of VDA 277, in accordance with the preferred embodiment of the present invention to reduce the mass content of secretions 2-methyl-propene in the space above the product in accordance with the requirements of VDA 277, at least 30%, in accordance with the preferred embodiment of the present invention according to any one of items 1-16, compared with the content of the secretions in the same polymeric composition, but without the carbonyl compounds (D) according to any one of items 1-16.

[Paragraph 23] To the product, in accordance with the preferred embodiment of the present invention to automotive products or to the substrate blister packaging, which includes a polymer composition according to any one of the preceding [Paragraphs 1-16].

Additionally, the present invention is described using examples.

EXAMPLES

1. In the description of the invention and in the examples below, the following definitions of terms and methods, if not determined otherwise.

Molecular weight, molecular weight distribution (Mn, Mw, MWD)

Mw/Mn/MWD determined by gel permeation chromatography (GPC) using sledujushih the method.

The weighted average molecular weight (Mw) and molecular weight distribution (MWD=Mw/Mn, where Mn - srednekislye molecular weight, a Mw - average molecular weight) was measured by the method according to ISO 16014-1:2003 and 16014-4:2003 ISO. The device Alliance GPCV 2000 firm Waters (Waters), equipped with a refractometric detector and on-line viscometer was used with 3 columns TSK-gel (GMHXL-HT) company TocoXaac (TosoHaas), and as a solvent at 145°C and at a constant flow rate of 1 ml/min was used 1,2,4-trichlorobenzene (TCB, stabilized with 200 mg/l 2,6-ditretbutyl-4-methyl-phenol). One analysis was introduced sample solution volume 216,5 µl. The speaker calibration was performed using standard 19 usadepartment MWD polystyrene (PS) in the range from 0.5 to 11500 kg/mol, and a set of known standard shirokogabaritnykh polypropylene. To obtain samples of the solution from 5 to 10 mg of polymer was dissolved in 10 ml (160°C) stabilized TCB (same as mobile phase) and kept for 3 h with continuous shaking before applying the sample to the GPC instrument.

The value of MFR2(230°C) measured according to ISO 1133 (under a load of 2.16 kg at 230°C).

The value of MFR2(190°C.) measured according to ISO 1133 (under a load of 2.16 kg at 190°C).

The ethylene content was measured by infrared spectroscopy with Fourier transform (FTIR) with cal the curve of 13C-NMR. When measuring the content of ethylene in the polypropylene sample thin film (thickness of approximately 250 mm) was prepared by hot pressing. The area of peaks of absorption 720, and 733 cm-1was measured on a Fourier spectrometer Perkin-Elmer FT1R 1600. The method was calibrated according to the ethylene content, measured using the13C-NMR.

The particle size was measured according to ISO 13320-1:1999.

Soluble in xylene substances (XS, wt.%): Soluble in xylene substances (XS) was determined at 23°C according to ISO 6427.

VDA 277 (which can be obtained, for example, in "Documentation Kraftfahrwesen" Dokumentation Kraftfahrwesen (DKF); Ulrichstraβe 14, 74321 Bietigheim Bissingen).

The content of volatile compounds was determined according to VDA 277:1995 using devices gas chromatography (GC) with WCOT capillary column (wax type) inner diameter of 0.25 mm and a length of 30 meters of gas chromatograph Settings: isothermal mode for 3 minutes at 50°C, heating to 200°C at 12 K/min, isothermal mode for 4 minutes at 200°C, injection temperature: 200°C, the temperature detection range: 250°C; carrier - helium stream splitting 1:20 and the average speed of the carrier 22-27 cm/S.

In addition to the flame-ionization detector for the total evaluation of volatile compounds was used sensor mass spectrometry for the evaluation of individual volatile components. Specific is agropalma mass spectrometry was used with the following settings: temperature transition line was 280°C, scanning speeds of from 15 to 600 Amu.. relative EMV mode, calibration weights with standard auto-spectra, the temperature of the source mass spectrometry was 230°C, and the temperature of the mass spectrometric device Quad was 150°C.

2. Sample preparation

Table 1
Properties sample
SEE1E2E3F4SECE3
MER[g/10 min]10,512,4the 11.612,210,29,911,2
HECO[wt.%]79,67879,07879,37878,97879,47877,17879,378
PA[wt.%]0,1900,1900,1900,1900,1900,1900,190
OA[wt.%]0,1000,1000,1000,1000,1000,1000,100
calcium stearate[wt.%]to 0.032to 0.032to 0.032to 0.032to 0.032to 0.032to 0.032
talc[wt.%]2000020,00020,00020,00020,00020,000benzoic acid[wt.%]0,600
GMS A[wt.%]0,300
GMS[wt.%]0,700
FAA[wt.%]0,200
Mg(OH)2[wt.%]
anthracene[wt.%]0,300
the total content of volatile compounds [VDA 277][pam/g]15592584942155190
2-methyl-1-propene [VDA277][pam/g]1102023121,68111142
HECO: heterophase polypropylene copolymer, namely the commercial product VENO company Borealis (Borealis) (MFR2 is 13 g/10 min; mass soluble in xylene substances is 15%, the mass content of ethylene is 7%.
RA: phosphorus-containing antioxidant, namely Tris(2,4-di-t-butylphenyl)fosfat (CAS No. 31570-044) [IRGAFOS 168].
RO: organic antioxidant, namely pentaerythrityl-tetrakis(3-(3',5'-di-trebuil-4-hydroxyphenyl)-propionate (CAS No. 6683-19-8) [IRGANOX 1010].
GMS: is GMS 90; that is, a compound containing 90% glycerol monostearate [Dimodan ON FF].
GMS: is 40 GMS; that is, a compound containing 40% glycerol monostearate [BUT 40 NL].
FAA: 13-docosenoic (CAS No. 112-84-5) [Crodamide OR].

1. The use of carbonyl compounds (D) to reduce emissions from the polymer into the space above the product in accordance with the requirements of VDA 277, preferably for reducing emissions of 2-methyl-propene in the space above the product in accordance with the requirements of VDA 277,
while carbonyl compounds (D) selected from the group composed of an aromatic carboxylic acid (D1with pKa values measured in dimethyl sulfoxide (DMSO), equal to at least 10,5, fatty acid amide (D2and an ester of fatty acids (D3).

2. The use according to claim 1, characterized in that carbonyl compounds (D) are part of the polymer composition, while the composition of these compositions in addition to the carbonyl compounds (D) include polypropylene (A, talc (C), organic antioxidants (C), and possibly phosphorous antioxidants (E).

3. The use according to claim 2, characterized in that the composition of this song is
(a) 1000-550000 million hours of talc (C),
(b) 100-5000 million hours of phenolic antioxidants (C),
(c) 100-8000 million hours carbonyl compounds (D), and
(d) may 100-5000 hours per million of phosphorus-containing antioxidant (E),
the rest of the composition.

4. Use according to any one of claim 2 and 3, characterized in that the polymer composition does not contain spatial-employed amine light stabilizers (F).

5. Use according to any one of claim 2 and 3, characterized in that the mass composition of the polymer composition includes at least 50% polypropylene.

6. Use according to any one of claim 2 and 3, characterized in that the polypropylene (A) used heterophase copolymer of propylene (A'), which includes polypropylene matrix (A1) and amorphous elastomer (A2).

7. Use according to any one of claim 2 and 3, characterized in that the composition of the talc (C) is composed of iron-containing residues, preferably iron oxide (FeO) and/or silicate of iron.

8. Use according to any one of claim 2 and 3, characterized in that the organic antioxidants (C) are phenolic antioxidants (C'), preferably sterically blocked finalnumericgrade (').

9. Use according to any one of claim 2 and 3, characterized in that the organic antioxidants (C) are phenolic antioxidants (C'), which include the balance of the formula (I)

where R1is in a position ortho or meta with respect to the hydroxyl group, and R1is (CH3)3C-, CH3- or N, preferably -(CH3)3With-, and
A1is the remaining part of the phenolic antioxidant (C').

10. Use according to any one of claims 1 and 2, characterized in that the pKa value of the carbonyl compounds (D), measured in dimethyl sulfoxide (DMSO), are not more than 30, preferably in the range from 10.5 to 30.

11. Use according to any one of claims 1 and 2 that as the carbonyl compounds (D) used benzoic acid.

12. The use according to claim 1, characterized in that as the fatty acid amide (D2) is used unsaturated amide fatty acids, preferably unsaturated fatty acid amide comprising from 10 to 25 carbon atoms.

13. The use according to claim 1, characterized in that as a complex ester of fatty acid (D3) is an ester of glycerin in the formula (IV)

where n takes values from 5 to 25, preferably from 10 to 18.

14. The use according to claim 1, ex is different, however, as of ester of fatty acid (D3) is an ester of glycerin in the formula (V-a) or (V-b)

where n and m independently from each other are set to a value from 1 to 9, preferably from 4 to 8.

15. The use according to claim 1, characterized in that carbonyl compounds (D) selected from the group which includes benzoic acid, glycerol monostearate (CAS - No 97593-29-83) and 13-docosenoic (CAS - No 112-84-5).

16. Use according to any one of claim 2 and 3, characterized in that the degradation of organic antioxidants (C) according to any one of the preceding claim 2, 8 and 9 is reduced.

17. Use according to any one of claims 1 and 2, characterized in that carbonyl compounds (D) reduce the amount of emissions from the polymer composition in the space above the product in accordance with the requirements of VDA 277, preferably reduce the amount of discharge 2-methyl-propene in the space above the product in accordance with the requirements of VDA 277, at least 30%, preferably from a polymeric composition according to any one of claim 2 to 15, compared with the content of secretions from the same polymeric composition, but without the carbonyl compounds (D) according to any one of claims 1 to 15.



 

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1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to processing of worn-out tires and to methods of rubber wastes recovery. Proposed method comprises mixing crumb of worn-out tires with digester containing carbon chain rubber and altax to complete digestion of rubber wastes. Zinc stearate in amount of 26 wt % of total amount of digester is added to the latter prior to its mixing with crumb. Sheet is produced from digestion mix to be cut into equal weight and area plates to be laid regularly over the length and width of feeder belt. Said plates are rolled to sheet of thickness smaller than 1 mm. Surface of made sheet is filled with rubber crumb at digester-to-crumb ratio of 5:95. Sheet is passed through rolls several times and folded, at least, in two after every pass in rolls.

EFFECT: simplified process, lower costs.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a foamed refractory polymer material such as foamed polymers and copolymers of styrene which contain substances which impart refractory properties, based on bromated fatty acid, and a method for production thereof. The method involves production of a molten mixture of a combustible polymer, an additive which imparts refractory properties and a foaming agent. A molten mixture under pressure is brought to temperature of at least 200°C, after which it is extruded into a low pressure zone in which the mixture is foamed and cooled to form a foamed polymer with density of 16-480 kg/m3. The additive which imparts refractory properties used is at least one bromated fatty acid, an ester, an amide or an ester-amide of bromated fatty acid, a glyceride of one or more bromated fatty acids, a polymerised bromated fatty acid, or a mixture of any two or more substances from the above-mentioned in an amount which provides 0.1-30 pts.wt bromine per 100 parts of the combined weight of the combustible polymer, the additive which imparts refractory properties and the foaming agent.

EFFECT: foamed refractory polymer material made according to the invention exhibits excellent fire resistance.

13 cl, 3 tbl, 17 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a foamed refractory polymer material such as foamed polymers and copolymers of styrene which contain substances which impart refractory properties, based on bromated fatty acid, and a method for production thereof. The method involves production of a molten mixture of a combustible polymer, an additive which imparts refractory properties and a foaming agent. A molten mixture under pressure is brought to temperature of at least 200°C, after which it is extruded into a low pressure zone in which the mixture is foamed and cooled to form a foamed polymer with density of 16-480 kg/m3. The additive which imparts refractory properties used is at least one bromated fatty acid, an ester, an amide or an ester-amide of bromated fatty acid, a glyceride of one or more bromated fatty acids, a polymerised bromated fatty acid, or a mixture of any two or more substances from the above-mentioned in an amount which provides 0.1-30 pts.wt bromine per 100 parts of the combined weight of the combustible polymer, the additive which imparts refractory properties and the foaming agent.

EFFECT: foamed refractory polymer material made according to the invention exhibits excellent fire resistance.

13 cl, 3 tbl, 17 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a foamed article made from thermoplastic polyesters. Polyester foam for making the foamed article contains thermoplastic elastomers and has characteristic viscosity greater than 1.2 dl/g. The foamed article is made using an agent which contains thermoplastic elastomers and dianhydrides of tetracarboxylic acids. The foamed article is made from polyester having a premix of thermoplastic elastomers and dianhydrides of tetracarboxylic acids which is mixed and foamed to form a foamed article. The foamed article contains thermoplastic elastomers or thermoplastic elastomers based on copolyesters in amount of 0.5-15 wt % with respect to weight of the foamed article.

EFFECT: foamed article has high homogeneity, low open porosity and high breaking elongation under shearing stress.

12 cl, 2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: ionomeric polyester is derived from at least one ionomeric monomer, where at least 90% of the acid units of the ionomeric polyester are derived from a group consisting of terephthalic acid, isophthalic acid, orthophthalic acid, 2,6-dimethylnaphthalene acid, and their respective dimethyl esters. The oxidisable phosphorus compound is selected from a group consisting of triphenylphosphite, trimethylphosphite, triethylphosphite, (2,4,6-tri-t-butylphenol)-2-butyl-2-ethyl-1,3-propanediol phosphite, bis (2,4-di-tert-butylphenyl)pentaerythritol diphosphite and tetrakis(2,4-di-tert-butylphenyl)-4,4-biphenyldiphosphonite. Described is a method of drying and polymerising the composition in solid state.

EFFECT: enabling use of a larger amount of oxidisable phosphorus stabiliser compared with a combination without an ionomeric polyester polymer, without affecting the dark colour of the end polymer.

11 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: ionomeric polyester is derived from at least one ionomeric monomer, where at least 90% of the acid units of the ionomeric polyester are derived from a group consisting of terephthalic acid, isophthalic acid, orthophthalic acid, 2,6-dimethylnaphthalene acid, and their respective dimethyl esters. The oxidisable phosphorus compound is selected from a group consisting of triphenylphosphite, trimethylphosphite, triethylphosphite, (2,4,6-tri-t-butylphenol)-2-butyl-2-ethyl-1,3-propanediol phosphite, bis (2,4-di-tert-butylphenyl)pentaerythritol diphosphite and tetrakis(2,4-di-tert-butylphenyl)-4,4-biphenyldiphosphonite. Described is a method of drying and polymerising the composition in solid state.

EFFECT: enabling use of a larger amount of oxidisable phosphorus stabiliser compared with a combination without an ionomeric polyester polymer, without affecting the dark colour of the end polymer.

11 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: ionomeric polyester is derived from at least one ionomeric monomer, where at least 90% of the acid units of the ionomeric polyester are derived from a group consisting of terephthalic acid, isophthalic acid, orthophthalic acid, 2,6-dimethylnaphthalene acid, and their respective dimethyl esters. The oxidisable phosphorus compound is selected from a group consisting of triphenylphosphite, trimethylphosphite, triethylphosphite, (2,4,6-tri-t-butylphenol)-2-butyl-2-ethyl-1,3-propanediol phosphite, bis (2,4-di-tert-butylphenyl)pentaerythritol diphosphite and tetrakis(2,4-di-tert-butylphenyl)-4,4-biphenyldiphosphonite. Described is a method of drying and polymerising the composition in solid state.

EFFECT: enabling use of a larger amount of oxidisable phosphorus stabiliser compared with a combination without an ionomeric polyester polymer, without affecting the dark colour of the end polymer.

11 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: neutral carbon source used is glucose, which is converted to aniline under the action of Escherichia coli or Streptomyces griseus bacteria. The glucose is obtained from plants. The stabiliser, vulcanisation accelerator or modified natural rubber is prepared from aniline obtained as described above.

EFFECT: invention improves environmental friendliness of methods of preparing a stabiliser, vulcanisation accelerator and modified natural rubber, which saves oil resources.

6 cl, 3 dwg, 5 ex

FIELD: chemistry.

SUBSTANCE: neutral carbon source used is glucose, which is converted to aniline under the action of Escherichia coli or Streptomyces griseus bacteria. The glucose is obtained from plants. The stabiliser, vulcanisation accelerator or modified natural rubber is prepared from aniline obtained as described above.

EFFECT: invention improves environmental friendliness of methods of preparing a stabiliser, vulcanisation accelerator and modified natural rubber, which saves oil resources.

6 cl, 3 dwg, 5 ex

FIELD: chemistry.

SUBSTANCE: neutral carbon source used is glucose, which is converted to aniline under the action of Escherichia coli or Streptomyces griseus bacteria. The glucose is obtained from plants. The stabiliser, vulcanisation accelerator or modified natural rubber is prepared from aniline obtained as described above.

EFFECT: invention improves environmental friendliness of methods of preparing a stabiliser, vulcanisation accelerator and modified natural rubber, which saves oil resources.

6 cl, 3 dwg, 5 ex

FIELD: chemistry.

SUBSTANCE: neutral carbon source used is glucose, which is converted to aniline under the action of Escherichia coli or Streptomyces griseus bacteria. The glucose is obtained from plants. The stabiliser, vulcanisation accelerator or modified natural rubber is prepared from aniline obtained as described above.

EFFECT: invention improves environmental friendliness of methods of preparing a stabiliser, vulcanisation accelerator and modified natural rubber, which saves oil resources.

6 cl, 3 dwg, 5 ex

FIELD: organic chemistry, rubber industry.

SUBSTANCE: invention relates to a chemical compound, namely to polyaniline (poly-p-phenyleneamineimine) that is used as an antiager for rubbers. Polyaniline of the formula: wherein m = n = 1 with molecular mass 25 x 103 Da is used as an antiager. Invention provides enhancing thermostability of vulcanized rubbers.

EFFECT: improved and valuable properties of antiager.

2 tbl, 2 ex

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