Polymer composition to obtain films
(57) Abstract:The use of the invention: fabrication of films, fluorescent and selectively absorb radiation, which can be used in agriculture. The inventive composition contains 0,0149 1,1618% active additives, rest of (co)polymer of ethylene. Active additive compound of europium on the media General formula AxByCzwhere a compound of europium selected from the group comprising salts of organic and inorganic acids and chelating compounds; In donor ligand selected from the group comprising 1,10-phenanthroline, 2,2-dipyridyl, trioctylphosphine, dimensionalised, tributyl phosphate and triphenylphosphine; With inorganic media that is not soluble in water and does not absorb UV radiation in the region of 260 to 400 nm, with a particle size of 0.04 to 100 microns, x, y, z is the mass fraction of components and x y z from 1,0 0,2 0,2 to 1,0 4,5 40,0. table 1. The invention relates to polymeric compositions for the preparation of fluorescent and selectively absorb radiation materials that can be used in agriculture for the manufacture of films, transforming the UV component of natural or artificial light in the radiation of the second additive complex compounds oil sulfoxidov and tributyl phosphate with chlorides of rare earth elements 
The disadvantage of this composition is the low intensity of the luminescence of the obtained films.Closest to the claimed invention is a known polymer composition to obtain films, including (co)polymer of ethylene and an active additive compound of europium 
The disadvantage of this polymer composition is a low intensity of luminescence of the obtained films.The purpose of the invention increase the intensity of luminescence of the obtained films.This technical result is achieved in that the polymer composition to obtain films, including (co)polymer of ethylene and an active additive, as the latter contains a complex compound of europium on the media, the General formula
AxByCzwhere A compound of europium selected from the group comprising salts of inorganic and organic acids and chelating compounds;
In donor ligand selected from the group comprising 1,10-phenanthroline, 2,2-dipyridyl, trioctylphosphine, Vexillology, tributyl phosphate and triphenylphosphine;
With inorganic media that is not soluble in water and does not absorb UV radiation in the field of 260-400 nm size calicanto, wt. Active additive 0,0149-1,1618 (co)Polymer of ethylene Else
The invention consists in the following.Prepare active additive, which dissolve compounds of europium in the water and poured the water suspension containing the media. The resulting mixture is stirred for one hour and evaporated in a rotary evaporator. Then poured toluene and the solution donor ligand in toluene. The contents stirred for 3 h at 70aboutC, then filtered and dried in vacuum at 100aboutC. active additives on the media to 99%
As compounds of europium use nitrates, chlorides, perchlorates, phosphates, sulfates, salts of monobasic1-C20-aliphatic and halogenations acids, aromatic mono-, di - and tricyclic acids and such chelate compounds as denitrification, dibenzoylmethane, hexafluoroacetylacetonate, benzoyltrifluoroacetone. These compounds are soluble in water and such organic solvents as aliphatic alcohols, ethers, esters, dimethylformamide, dimethyl sulfoxide, aliphatic ketones, POLYHALOGENATED, aromatic hydrocarbons.As inorganic media use sulfates to its origin on the basis of these compounds.Data of x-ray phase analysis confirm the presence of two phases (crystal structures): complexed with europium donor ligand (components a and b) and the carrier (component C).The data obtained by electron microscopy, show that the particles obtained substances powdery substance with the stated structure and particle sizes, i.e., the complex compound of europium supported on a carrier and has a particle size of 0.04 to 100 microns.Active additive on the carrier in the form of a free flowing powder mixed with granules (co)polymer of ethylene, for example, polyethylene brand 15313-003 and processed by extrusion blown film according to GOST 10354-82.Films prepared from polyethylene, have the tensile force in the longitudinal direction to 16.9 MPa, transverse to 14.9 MPa, elongation at break in the longitudinal direction to 76% in the transverse to 90%
The invention is illustrated in the examples in the table.The table uses the following abbreviations: PE polyethylene ST. copolymer of ethylene with
the vinyl acetate europium Eu (TTA)3thenoyltrifluoroacetone-
NAT Eu (DBM)3dibenzoylmethane
europium Hairdryer 1,10-phenanthrolin PF is>XID POLYMER COMPOSITION TO OBTAIN FILMS, including (co) polymer of ethylene and an active additive, characterized in that as an active additive contains a complex compound of europium on the media, the General formula
AxByCz< / BR>where A compound of europium selected from the group comprising salts of organic and inorganic acids and chelating compounds;
B donor ligand selected from the group comprising 1,10-phenanthroline, 2,2-dipyridyl, trioctylphosphine, vexillological tributyl phosphate and triphenylphosphine;
C inorganic media that is not soluble in water and does not absorb UV radiation in the field of 260-400 nm, with a particle size of 0.04 to 100 microns;
x,y,z - 1,0 0,1 0,2 to 1,0 4,5 40,0 mass fraction of components,
in the following ratio, wt.The specified active additive 0,0149 1,1618
(Co)polymer of ethylene Else
FIELD: organic chemistry, in particular curing accelerators for unsaturated polyester resins and acrylate oligomers.
SUBSTANCE: claimed method includes reaction of vanadium pentaoxide, or ammonium metavanadate, or metavanadic acid with phosphoric acid aqueous solution and optionally with butylic alcohol or 2-ethyl hexanol, at 110-125°C for 0.5-2.5 h (from heating start to cooling).
EFFECT: economy method for production of complex curing accelerator from inexpensive raw material by simplified technology.
1 tbl, 7 ex
SUBSTANCE: epoxide composition can be used as binder during production of composite materials, adhesive and filling compositions in automobile, electrical and other industries. Described is an epoxide composition which contains epoxy diane resin, phosphate modifier, amine hardener and hardening initiator - complex of tris(halogenalkyl)phosphate (THAP) with tin or titanium chloride with general formula 2[(RO)3 P=O]•ECl4, where E=Sn,Ti, R= -CH3C6H4, -CH2CH2CI, -CH2CH(CI)CH3.
EFFECT: proposed epoxide composition can be used to make articles with good strength properties and fire resistance.
1 cl, 2 tbl, 6 ex
SUBSTANCE: invention relates to catalysis and preparation of dicyclopentadiene metathesis polymerisation catalysts. The metathesis polymerisation catalyst has the formula: , where L is a substitute selected from the group: , , . Several methods of preparing the catalyst are disclosed. The method of preparing the catalyst having formula , where , , is characterised by that, a second generation Grubbs catalyst is reacted with N,N-dialkyl-(2-vinylbenzyl)amine or 4-(2-vinylbenzyl)morpholine in an inert atmosphere at 60-85°C in the presence of a solvent, where the dialkyl- is methylethyl- or methyl(2-methoxyethyl). The method of preparing the catalyst formula , where L is a substitute selected from the group: , , , , involves reacting a ruthenium triphenylphosphine complex with 1,1-diphenyl-2-propyn-1-ol in tetrahydrofuran at boiling point of the solvent in an inert atmosphere and then with tricyclohexylphosphine at room temperature in an inert atmosphere. The ruthenium indenylidene complex formed is extracted and then, successively in the same reactor, reacted with 1,3-bis-(2,4,6-trimethylphenyl)-2-trichloromethylimidazolidine and 2-(N,N-dialkylaminomethyl)styrene or 1-(2-vinylbenzyl)pyrrolidine or 4-(2-vinylbenzyl)morpholine in toluene while heating to 60-70°C in an inert atmosphere. The dialkyl- is diethyl-, methylethyl- or methyl(2-methoxyethyl)-. A dicyclopentadiene metathesis polymerisation method is disclosed, which involves polymerisation using the catalyst in paragraph 1 in molar ratio substrate: catalyst ranging from 70000:1 to 200000:1.
EFFECT: invention increases catalyst output and simplifies synthesis by reducing the number of steps, and also enables to obtain polydicyclopentadiene with good application properties.
4 cl, 1 tbl, 22 ex
SUBSTANCE: invention relates to organometallic chemistry, in particular to novel complexes of group 8 transition metals, which are used as polymerisation catalysts of cyclic olefins, particularly dicyclopentadiene (DCPD). The catalyst is a ruthenium complex compound of general formula (1), having ligands in form of 1,3-dimesitylimidazolidinylidene, two chlorine atoms and substituted benzylidene. The substitute in the benzylidene ligand is an amino-substituted methyl group, where the amine is a di(hydroxyalkyl)amino group, as well as piperidine. The amine-containing substitute also coordinates to the ruthenium atom and forms a six-member chelate ring where X=N (Alk-OH)2, (CH2)5N , where Alk is a straight saturated hydrocarbon chain containing 2 carbon atoms. The method of preparing the catalyst involves successive reaction in a single reactor of 1,3-dimesityl-4,5-dihydro-imidazolium chloride with potassium tert-butoxide, first generation Grubb's catalyst (GrI) and then amino-containing styrene.
EFFECT: simple technology of obtaining an efficient catalyst for metathesis polymerisation of dicyclopentadiene.
2 cl, 2 ex
SUBSTANCE: invention relates to novel complexes of group 8 transition metals, which are used as polymerisation catalysts for cyclic olefins, particularly dicyclopentadiene (DCPD). Described is a catalyst for metathesis polymerisation of dicyclopentadiene which is a ruthenium complex compound, having ligands in form of 1,3-bis-(2,6-dimethylphenyl)-2-imidazolidinylidene, two chromium atoms and ortho-substituted benzylidene. The substitute in the benzylidene ligand is an amino-substituted methyl group, where the amine is a dialkylamino-, di(2-hydroxyethyl)amino-, alkylphenylamino-group, as well as cyclic amines, particularly piperidine and morpholine; the catalyst has general formula: , where X=(Alk)2N, N(CH2-CH2-OH)2, piperidine, morpholine, NAlkPh; Alk=CH3, C2H5; Ph is phenyl. Described also is a catalyst for metathesis polymerisation of dicyclopentadiene, which is a ruthenium complex compound having ligands in form of 1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene, two chromium atoms and ortho-substituted benzylidene. The substitute in the benzylidene ligand is an alkylphenylamino-substituted methyl group. The catalyst has general formula: Alk=CH3, C2H5; Ph=phenyl. The invention describes methods of producing polydicyclopentadiene, involving polymerisation of dicyclopentadiene in the presence of the described catalysts, as well as catalysts which are compounds of [1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(2-(N,N-bis(2-hydroxyethyl)aminomethyl)benzylidene)ruthenium or a compound of [1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(o-9piperidin-1-ylmethyl)benzylidene)ruthenium with molar ratio of monomer: catalyst ranging from 70000:1 to 250000:1.
EFFECT: reduced unit consumption of catalyst, which leads to low cost of polydicyclopentadiene, possibility of controlling the starting time of the polymerisation process.
5 cl, 9 ex
SUBSTANCE: sealing composite material contains low-molecular weight dimethylsiloxane rubber SKTN, silicone rubber SKT, a curing agent in form of a mixture of tetraethoxysilane or derivatives thereof with an organotin catalyst.
EFFECT: reliable sealing of industrial equipment for the entire process cycle, optimum combination of initial viscous-flow properties and physical and mechanical properties of the vulcanisate, and easy and flawless depressurisation of industrial equipment.
3 tbl, 9 dwg
SUBSTANCE: invention relates to a refractory composition for making casting moulds. The composition contains (a) at least 85 pts.wt refractory material, (b) 0.5-10 pts.wt binder and (c) manganese cyclopentadienyl tricarbonyl, a derivative thereof, in amount of about 0.0005 pts.wt to about 4 pts.wt, where the parts by weight are given with respect to 100 pts.wt of the refractory composition. Also disclosed are methods of making a casting mould and a method of moulding metal parts.
EFFECT: invention enables to make casting moulds with improved exothermic properties.
13 cl, 4 tbl, 2 ex
SUBSTANCE: invention relates to a polypropylene polymer composition which contains phenol antioxidants and use of talc with an organometallic coating in polymer compositions. The polymer composition contains: (a) at least 50 wt % polypropylene; (b) 10000-400000 ppm coated talc; (c) 100-5000 ppm phenol antioxidants, and (d) optionally 100-5000 ppm phosphorus-containing antioxidants. The coated talc is used in the polypropylene composition to provide emission of volatile compounds from the product, measured according to VDA 277 standards, (a) all volatile compounds of the polymer composition in total amount of 120 mcg/g or less and/or (b) 2-methyl-propene of said polymer composition in amount of not more than 70 mcg/g.
EFFECT: obtaining a polypropylene polymer composition which contains phenol antioxidants.
14 cl, 1 tbl, 1 ex
SUBSTANCE: invention relates to method of reducing cold flow of polymer composition, versions of polymer composition and to tyre cover. Polymer composition includes the following components: polydiene or polydiene copolymer, solvent, if required, and combination of product of reaction of (i) acetal or alditol ketal and (ii) (a) hydrocarbylated boric acid, (b) aluminium-organic compound, or (c) both hydrocarbylated boric acid and aluminium-organic compound. Aluminium-organic compound is described by formula AlRnX3-n, where each R, which can be similar or different, represents monovalent organic group, which is bound to aluminium atom via carbon atom, where each X, which can be similar or different, represents carbon atom, halogen atom, carboxylate group, alkoxide group or aryloxide group, and where n represents integer number in the range from 1 to 3. In one of the versions polymer composition contains said copolymer and hydrocarbylboric acid ester, which is described by the following formula: , where each of R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30 and R31 independently represents hydrogen atom or monovalent organic group, and where R20 and R21 and/or R22 and R23 join with formation of bivalent organic group, and where n equals 0, 1 or 2, and R55 represents hydrocarbyl group or ester of hydrocarbylboric acid, which is described by one of the formulas: , , where each of R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30 and R31 independently represents hydrogen atom or monovalent organic group, or where R20 and R21 and/or R22 and R23 join with formation of bivalent organic group, and where n equals 0, 1 or 2, and each of R55 and R56 independently represents hydrocarbyl group. Method of reducing cold flow of polymer composition includes combination of all components mentioned above. Tyre includes tyre component, produced from the claimed composition.
EFFECT: invention makes it possible to improve resistance to cold flow.
12 cl, 4 tbl, 2 ex
SUBSTANCE: invention relates to dimming thermochromic device, which includes at least two light-transmitting substrates and at least one thermochromic layer, reversibly changing transmission of light and heat flows with change of its temperature in visible and/or nearest IR parts of spectrum. Thermochromic layer is made from thermochromic material, representing photocurable composition based on mixture of monomers and oligomers of derivatives of unsaturated acids, which contains complexes of transition metals, halogenides of alkali and/or alkali earth metals. Application of claimed invention makes it possible to simplify technology of production, reduce energy and labour consumption of the process of thermochromic triplex manufacturing, and reduce its cost.
EFFECT: device manufacturing is characterised by low production toxicity, availability and cheapness of raw materials.
12 cl, 3 tbl, 4 ex, 122 dwg
FIELD: rubber materials, polymers.
SUBSTANCE: invention relates to composition based on ethylene-propylene or ethylene-propylenediene rubber and copolymer of ethylene and octyne that is used as an inter-strand filling agent in cables. Method involves preparing the composition containing the following components, mas. p. p.: rubber, 100; copolymer of ethylene and octyne, 25-55; paraffin, 50-170; stearic acid, 4-30; dibutyl phthalate, 4-25; chalk, 500-1600. The composition can comprise aluminum trihydrate additionally, 180-270 mas. p. p. per 100 mas. p. p. of rubber. Invention provides enhancing electric, physical and technological indices of materials used for filling cable articles.
EFFECT: improved and valuable properties of composition.
FIELD: polymer materials.
SUBSTANCE: composition contains 0.05 to 0.24 hydrolyzable silane groups per 100 methylene units and shows standard density at least 954 kg/m3. Flowability factor of composition melt is below 1.5 g/10 min under loading 5 kg and above 2 g/10 min under loading 21.6 kg as measured in accordance with ASTM standard D 1238. Tube manufacture process envisages extrusion of composition in the form of tube in the first stage and subsequent hydrolysis of the tube in order to link cross-linkable polyethylene. Tubes manufactured according to present invention show high long-term resistance to pressure above 12.5 MPa as measured according to ISO/TR standard 9080 and can be used for transportation of fluid substances under high pressure.
EFFECT: improved consumer's quality of tubes.
13 cl, 4 ex
FIELD: polyethylene-based composition and method for production of molding articles thereof.
SUBSTANCE: claimed composition contains at least 94.5 % of polyethylene with standard density more than 940 kg/m3; 0.05-0.5 mass % of at least one saturated fatty acid amide containing from 8 to 30 carbon atoms; 0-1.15 mass % of auxiliary lubricant and 0-5 mass % of one or more additives selected from antioxidants, acid resistant compounds, anti-UV, dyes and antistatic agents, wherein total amount abovementioned components is 100 %. Said auxiliary lubricant is selected from group containing fatty acids, fatty acid esters, fatty acid salts, monounsaturated fatty acid amides, polyvalent alcohols, containing at least 4 carbon atoms, mono- or polyvalent alcohol monoethers, glycerol esters, paraffins, polysiloxanes, fluorinated polymers and mixtures thereof.
EFFECT: molded articles with improved gliding properties.
12 cl, 3 ex
FIELD: polymer materials.
SUBSTANCE: invention provides multimodal polymer composition for manufacturing tubes, which contains 92-00% bimodal polyethylene and 1-8% carbon black and is characterized by melt flowing rate (MFR5) within a range of 0.15 to 0.40 g/10 min, measured according to ISO 1133, and density 955-965 kg/m3. Bimodal polyethylene comprises 42-55% low-molecular weight ethylene homopolymer characterized by melt flowing rate (MFR1.2) within a range of 350 to 1500 g/10 min and 58-45% high-molecular weight copolymer of ethylene with 1-hexene, 4-methyl-1-pentene, 1-octene and/or 1-decene. Tubes manufactured from above composition show design stress at 9.0 MPa and are characterized by good workability, high resistance to slow formation of cracks and fast propagation of cracks as well as high maximum permissible design stress.
EFFECT: improved performance characteristics of tubes.
23 cl, 2 tbl, 4 ex
FIELD: polymer materials.
SUBSTANCE: polymer molding mass composed of first ethylene polymer A (55-75 wt %) and second ethylene polymer B (25-45 wt %), which is especially suitable for manufacturing thick-wall large-caliber tubes serving to transport gas or water. In particular, polymer A is copolymer of ethylene with C4-C10-α-olefin characterized by content of α-olefin from 0.2 to 5 wt % and a wide bimodal molecular weight distribution while polymer B is the same as polymer A but with different bimodal molecular weight distribution. Molding mass is further characterized by unevenly improved resistance against FNST splitting equal to at least 150 h.
EFFECT: enabled manufacture of thick-wall large-caliber tubes not accompanied with splitting or appearance of creeping problem, which tubes are further characterized by good mechanical properties and homogeneity of material.
13 cl, 1 dwg, 6 tbl, 12 ex
FIELD: cleansing materials.
SUBSTANCE: invention relates to concentrates designated for using in cleansing equipment for processing polymeric material-extruders, thermoplastic automates and so on in change from color to color and from "pickups" representing particles of decomposed polymer and deposited on the equipment surface. The concentrate for cleansing equipment comprises, wt.-%: carbamide, 0.3-30; dicarboxylic aliphatic (C3-C8)-acid, 0.3-30, and polymeric binding agent, the balance. The concentrate can comprise also, wt.-%: monocarboxylic aliphatic (C14-C16)-acid, 0.3-20; calcium stearate and/or zinc stearate, 0.2-1.0; thiourea, 0.3-15, and biuret, 0.3-15. As a polymeric binding agent polyethylene of low density or copolymer of ethylene and vinyl acetate is used. Invention provides reducing exhaust of ammonia in atmosphere.
EFFECT: improved and valuable properties of concentrate.
7 cl, 5 tbl
FIELD: polymer tubes for hot fluid media, such as hot water.
SUBSTANCE: proposed tube has multi-modal polyethylene having density of 0.921-0.950 g/cm3 and containing high-molecular and low-molecular fractions; density of high-molecular fraction is 0.920 g/cm3. Service life of tube before destruction at 95°C and 3.6 Mpa is 165 h as determined in accordance with DIN 16833; elasticity modulus does not exceed 900 Mpa as determined in accordance with ISO 527-2/1B. Multi-modal polyethylene is preferably bimodal polyethylene; low-molecular fraction of such polyethylene has density of 0.955-0.975 g/cm3 and high-molecular fraction has density of 0.920-0.940 g/cm3; mass ratio of low-molecular fraction to high-molecular fraction ranges from 30:70 to 55:45.
EFFECT: enhanced cracking resistance under action of stress; improved characteristics of hydraulic pressure tests at high temperatures; enhanced flexibility.
9 cl, 1 tbl, 1 ex