Polyphosphate derivative of 1,3,5-triazine compound, synthesis method and use thereof

FIELD: chemistry.

SUBSTANCE: invention relates to polyphosphate derivatives of 1,3,5-triazine compound, preferably melamine polyphosphate, which have high heat resistance during processing and are used as antipyrene. The compounds have average degree of condensation n (number average) of over 20, pH value of a 10% suspension of the corresponding polyphosphate derivative in water at 25°C is equal to or greater than 5, molar ratio of 1,3,5-triazine compound to phosphorus (M/F) less than 1.1 and decomposition temperature above 320°C. The polyphosphate derivatives are obtained through thermal treatment of orthophosphate or condensed phosphate with average degree of condensation n (number average) less than 20 in an ammonium atmosphere at temperature ranging from 300 to 400°C until attaining average degree of condensation greater than 20 and molar ratio of 1,3,5-triazine compound to phosphate (M/F) less than 1.1.

EFFECT: increased heat resistance with low water-solubility and low conductivity of obtained compounds.

18 cl, 2 tbl, 2 ex

 

From the publication WO 00/02869 known polyphosphate salt of 1,3,5-triazine compounds with an average degree of condensation (srednekovoi value) greater than 20 and the molar ratio between the triazine compound such as melamine, and phosphorus (M/f) 1.1. In this publication also described two-step method to produce these salts by conversion of 1,3,5-triazine compounds its interaction with orthophosphoric acid in an appropriate orthophosphate salt, which is then heat treatment is transformed into polyphosphate 1,3,5-triazine compounds. Along with orthophosphate can also be used pyrophosphates. Described in the publication polyphosphate salts are primarily intended for use as a fire retardant.

In the publication WO 97/44377 described polymetaphosphate melamine with a solubility in water of from 0.01 to 0.10 g/100 ml at 25°C, pH from 2.5 to 4.5 in the form of a 10%by mass aqueous suspension at 25°C and a melamine content from 1.0 to 1.1 mole per mole of phosphorus. This polymetaphosphate melamine also receive a two-step method, the first stage of which melamine, urea and an aqueous solution of orthophosphoric acid are mixed together in the proportions in which the molar ratio of melamine and phosphoric acid is from 1.0 to 1.5, and the molar ratio of urea and phosphoric acid is th is from 0.1 to 1.5. The reaction is carried out at a temperature in the range from 0 to 140°C. while removing water to obtain a powder of a double salt of phosphoric acid, melamine and urea. In the second stage, this salt is calcined at a temperature in the range from 240 to 340°C To produce as a result of polymetaphosphate melamine. Obtained in this way polymetaphosphate melamine in this publication are also encouraged to apply as flame retardants.

In the publication WO 00/02869 the disadvantage obtained as described in WO 97/44377 way of polymetaphosphate melamine indicate their unsuitability for use as flame retardants in polymers, especially polyamides and complex polyesters, processing which is usually carried out at elevated temperatures. As described in WO 00/02869 data, these polymetaphosphate melamine have insufficiently high temperature resistance, impact strength, tensile strength and tensile strength. Thus for a specialist in this area is not obvious, for example, the enhancements are described in WO 97/44377 polyphosphate salts on the basis proposed in WO 00/02869 solutions.

From EP 1386942 known flame retardants containing phosphinate or diphosphinic together with a 1,3,5-triazine compound, which in this combination should improve the action of the flame retardant in comparison with the effect of the flame retardant on the basis of these same but taken separately components.

When using known from WO 00/02869 polyphosphate salts as flame retardants in plastics, especially in glass fiber reinforced-polyamide, complex polyesters such as polyethylene terephthalate and polybutylene terephthalate, recycle usually at relatively high temperatures (in particular, above 320°C), it is found that premature partial decomposition products, which have a corrosive impact on the form and subsequently using, for example, as insulating varnishes for copper wires at last.

Based on the above the basis of the invention was based on the task of further improving known from WO 00/02869 polyphosphate salts of 1,3,5-triazine compounds, to give them properties such as high thermal stability, allowing processing at temperatures above 320°C, and simultaneously, low solubility and low conductivity. When creating the present invention unexpectedly found that its proposed solution to the above problem is partially in contradiction with the calculations described in the publication WO 00/02869 on SS and 11. Proposed in the invention polyphosphate derivatives of 1,3,5-triazine compounds, p is IDE just melamine polyphosphate, with an average degree of condensation n (srednekovoi value) greater than 20 and with a pH value of 10%aqueous suspension polyphosphate derivative at 25°C, value of 5 or more, differ in that the molar ratio of 1,3,5-triazine compound and a phosphorus less than 1,1 and their decomposition temperature exceeds 320°C.

Such proposed invention polyphosphate derivatives can be used as flame retardants in any plastic, preferably thermoplastic and thermosetting polymers, including, in particular, and in glass fiber reinforced-polyamide and complex polyesters, processed at high temperatures. Based on the data given in the publication WO 00/02869 on SS-2 and 11, lines 15-20, not only impossible to expect such a result, but furthermore, the person skilled in the art had to consider the fact that when the ratio M/f less than 1.1, it is impossible to obtain a melamine polyphosphate with a pH value of more than 5 and that polyphosphate derivatives such low-ratio M/f is too small, the heat resistance is not suitable for use as flame retardants for plastics, such as fiberglass-reinforced polyamides and polyesters.

Thanks to the unexpectedly high thermal stability are proposed in the invention polyphosphate derivatives more there is no limit to the and the use of polyphosphates melamine and related triazine derivatives as flame retardants in plastics, first of all thermoplastics. List of plastic, in which you can type proposed in the invention polyphosphate derivatives presented in the publication WO 00/02869 on pages 6 and 7 contained in which information is hereby incorporated into the present description by reference.

Proposed in the invention polyphosphates can be simplified to present the following General formula

,

where M denotes a 1,3,5-triazine compound, and n denotes the average degree of condensation. At high and average degree of condensation n molecular formula can be reduced to the following form: (MNRO3)nwhere M also denotes a 1,3,5-triazine compound, and n denotes the average degree of condensation.

As 1,3,5-triazine compounds can be used, for example, 2,4,6-triamine-1,3,5-triazine (melamine) and its derivatives and condensation products, such as chalk, grind, melon, Amelin, ammelide and 2-freedomain, acetogenin, benzoguanamine and diaminophenylmethane. Obviously, you can also apply a mixture of these 1,3,5-triazine compounds. According to the present invention the preferred melamine, its derivatives and condensation products, primarily the melamine.

The average degree of condensation n of phosphate can be determined with known methods, for example, by NMR J. Am. Chem. Soc. 78, 1956, s). The average degree of condensation n in the preferred embodiment, is at least 30, and in a more preferred embodiment, from 40 to 150. This average degree of condensation can be described as the average length of a chain of phosphate derived.

Proposed in the invention polyphosphate derivatives have a high resistance when 320-370°C. thermal stability is determined by the temperature at which the mass loss is 2%. Low ratio M/f mean high content of phosphorus (p), and thus increasing the technological steps of 15% and an extremely low water-solubility, which is particularly important for plastic products used outdoors. The solubility proposed in the invention polyphosphate derivatives should preferably be less than 0.1 g/100 ml, more preferably less than 0.01 g/100 ml At these rates, water solubility can talk about practically insoluble in water products.

The molar ratio of M/f should preferably be, as mentioned above, less than 1.0, more preferably from 0.8 to 1.0.

The pH value is determined in a 10%by mass aqueous suspension proposed in the invention polyphosphate derivative, which is prepared by mixing in an appropriate vessel 25 g investigated polyphosphate p is vizvolnogo and 225 g of pure water with a temperature of 25°C and pH value of which is then determined using conventional means. The preferred pH in the range from about 5.1 to 6.9.

Decomposition temperature proposed in the invention polyphosphate derivatives preferably greater than 360°C., particularly preferably greater than 380°C., especially greater than 400°C.

Proposed in the invention is a method of obtaining claimed in items 1-6 claims polyphosphate derivatives is that the orthophosphate and/or at least condensed phosphate 1,3,5-triazine compounds, preferably melamine, with an average degree of condensation n of less than 20 is subjected to an atmosphere of ammonia heat treatment at a temperature in the range from 300 to 400°C., preferably from 340 to 380°C., particularly preferably from 370 to 380°C, which results in condensation product with an average degree of condensation n (srednekovoi value) greater than 20.

As source material typically use melamine orthophosphate, which, however, can be supplemented condensed phosphates such as pyrophosphates and polyphosphates with a lesser degree of condensation, or to replace them. The duration and temperature of heat treatment depends on the source of phosphate, but in any case, the average degree of condensation of the resulting product should not exceed 20. The concentration of ammonia in the gas atmosphere in the heat treatment zone is suitable in order to maintain in the range from 0.1 to 100 wt.%, preferably from 1 to 30%, particularly preferably from 2 to 10%, especially from 3 to 5%. As source material for the most appropriate use of 1,3,5-triazine compound, preferably a melamine compound with a minimum possible size of the particles, primarily with an average particle size of not more than 15 μm, preferably not more than 10 μm. Original products with larger particle size, it is advisable to put before heat treatment grinding to particles of a specified average size of not more than 15 μm, preferably not exceeding 10 microns.

Flame retardant properties proposed in the invention polyphosphate derivatives of 1,3,5-triazine compounds can be further improved by combining these polyphosphate derivatives with at least one phosphinate and/or diphosphonates.

This phosphinate, respectively diphosphonate preferably have a structure which can be represented by the following formulas I, II respectively:

,

,

where

R1and R2have identical or different meanings and refer to C1-C6alkyl straight or branched chain, With1-C7hydroxyalkyl straight or branched chain or aryl,

R3represents C1-C10alkylen with direct or times twinney chain With6-C10Allen, alkylaryl or arylalkyl,

M denotes Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base, preferably Ca, Mg, Al and Zn,

m denotes a number from 1 to 4

n denotes a number from 1 to 4 and

x denotes a number from 1 to 4.

Particularly preferably, M represents Al. The preferred flame retardant mixtures, which contain proposed in the invention polyphosphate derivative (component a) and diphosphine (component b) in such quantities, at which the ratio between these components And/In is from 3:7 to 7:3, preferably from 3:4 to 4:3.

Flame retardant properties proposed in the invention polyphosphate derivatives of 1,3,5-triazine compounds in the most preferred embodiment, can be improved by blending the polyphosphate derivatives with phosphinate aluminum General formula (I)

,

where

R1denotes-CH3, -CH2OH, -C2H5, -CH(OH)CH3or-C(OH)(CH3)2,

R2denotes-CH2HE, -C2H4OH, -C3H6HE or-CH(OH)CH3,

M represents Al and

m denotes a number from 1 to 4.

A mixture of Phosphinates aluminum can be obtained by getting a known method from mixtures of Phosphinates alkali metals available phosphinic acid in water Rast is the PR and then exposing them to boiling interaction with suspended in water, the hydroxide or oxyhydroxide aluminum. However, it should be noted that such reactions neutralization occur within a substantially greater period of time. Therefore, it is more feasible to subject the resulting reactions involving phosphorus phosphinate alkali metal interaction in aqueous solution with the required amount of water-soluble aluminum salts, such as chloride, hydroxychloride, sulfate, nitrate or formate, may be required to completely transfer the mixture into a solution by adding a small amount of mineral acid and then precipitated mixture of Phosphinates aluminum due to the increase in pH up to 4-7. Subsequent heating of the aqueous slurry to a temperature in the range from 105 to 150°C in autoclave provided facilitates later separation of insoluble precipitate. Finally precipitated in the sediment phosphinate aluminum is filtered off, washed and dried.

Another preferred embodiment of the invention differs from all the flame retardants or part of them, i.e. derived polyphosphate or polyphosphate derivatives and/or phosphinate and/or diphosphinic or phosphinate and/or diphosphonate and/or others known flame retardants applied silicone coating and/or modify them in some other way. This modification is known, for example, from the application DE19830128 A1, the contents of which are hereby incorporated in the present description by reference. When such modifications or organofunctional silane or a mixture organofunctional silanes or oligomeric organosiloxane or a mixture of oligomeric organosiloxanes or containing solution composition on the basis of Monomeric organosilanes and/or oligomeric organosiloxanes or composition based on water-soluble organopolysiloxanes put on the powdery flame retardant, which is in the process of applying to a coverage is constantly in motion.

Silicon-containing material for coating is preferably used in an amount of from 0.05 to 10 wt.% in recalculation on weight of a flame retardant. Silicon-containing coating, it is advisable to put on a flame retardant during the period of time of 10 s to 2 h, at a temperature in the range from 0 to 200°C. the flame Retardant coated with a coating preferably further subjected to a heat treatment at a temperature up to 200°C. and/or under reduced pressure. As organofunctional silane is preferable to use aminoalkyl, abaxially, aryloxyalkyl, methacryloxyethyl, mercaptoethyl, alkenyl or alkylphenolic alkoxysilane.

A particular advantage associated with the modification of the flame retardant coating on silicon him pok is itia, is to increase the durability of the flame retardant to the influence of external factors such as humidity. Thanks to such modifications to be prevented, thus reducing what is happening over time, leaching of flame.

Below the invention is illustrated by examples.

Example 1 and comparative example 1

a) In a paddle mixer was intensively stirred 876,96 kg of melamine. Then the melamine was subjected to interact with 75%phosphoric acid, which is sprayed in the number 784 kg resulting from the melamine orthophosphate was then subjected to fine grinding in the mill of the ACM.

b) a melamine Orthophosphate was subjected to heat treatment in a furnace. Before downloading melamine orthophosphate into the oven temperature was set at 380°C. In each case, the temperature and the concentration of ammonia in the atmosphere of the furnace was set to the required values and the whole experience was maintained almost at a constant level. In the furnace created an atmosphere of ammonia with its changeable as necessary concentration.

In example 1, which corresponds to the invention, were relatively high concentration of ammonia, which, in particular, corresponded to -3 mm Vogt the resulting pH value was $ 5,524 and thus significantly higher than 5. At the same time the solubility was decreased to about one third is from the solubility of the following comparative example and was to 0.032 g/100 ml During subsequent processing did not reveal any aggressive chemical attack of the forms. thermal stability of the product from example 1 according to the TGA (thermogravimetric analysis) was approximately 373°C (2%mass loss), i.e. reducing its mass by 2% was achieved at a temperature of about 373°C.

In comparative example 1, the concentration of ammonia in the atmosphere in the furnace was changed and set to a lower value than in example 1. This concentration corresponded to -100 mm Vogt as a result, the pH value is abruptly decreased and was in suspension about 3,57. The resistance according to the TGA was about 353°C (2%mass loss).

Conditions and results of this experiment are presented in table 1.

Table 1
PropertiesUnitExample 1Comparative example 1
P2O5%34,4633,120
Nitrogen (total)%41,3140,120
PH5,5243,568
Solubilityg/100 mlto 0.0320,095
Acid numbermg KOH/g1,301,31
Humidity%0,0680,075
2%reduction of the mass according to TGA°C372,91353,030
The maximum decomposition°C406,11397,400
The ratio M/f°C1,021,030

Example 2 and comparative example 2

Proposed in the invention of melamine polyphosphate (example 2) and not covered by claim 1 of the claims of melamine polyphosphate (comparative example 2) was treated as in example 1. The relevant parameters were also determined as in example 1 and obtained the following data.

the conditions and the results of this experiment are presented in table 2.

Table 2
PropertiesUnitExample 2Comparative example 2
P2O5%35,82030,680
Nitrogen (total)%41,19044,690
PH5,4703,580
Solubilityg/100 ml0,0020,017
Acid numbermg KOH/g0,4353,271
Humidity%0,313
2%reduction of mass TGA°C373,100374,770
The maximum decomposition °C407,430406,260
The ratio M/f°C0,9801,240

In this case, the resistance in both experiments was almost identical, whereas the pH in example 2, which corresponds to the invention was significantly higher than in comparative example 2.

1. Polyphosphate derivative of 1,3,5-triazine compounds, preferably melamine polyphosphate,
with an average degree of condensation n (srednekovoi value) over 20, with a pH of 10%suspension derived polyphosphate in water at 25°C, value of 5 or more,
a molar ratio of 1,3,5-triazine compound and phosphorus (M/f) is less than 1.1 and
with a decomposition temperature above 320°C.

2. Polyphosphate derivative according to claim 1, characterized in that its solubility is less than 0.1, preferably less than 0.01 g/100 ml

3. Polyphosphate derivative according to claim 1, characterized in that the molar ratio of 1,3,5-triazine compound and phosphorus (m/f) is less than 1.0, preferably from 0.8 to 1.0.

4. Polyphosphate derivative according to claim 1, characterized in that the pH of 10%suspension derived polyphosphate in water at 25°C. ranges from 5.1 to 6.9.

5. Polyphosphate derivative on the .1, characterized in that the average degree of condensation n (srednekovoi value) greater than 30, particularly preferably from 40 to 150.

6. Polyphosphate derivative according to claim 1, characterized in that the temperature of its decomposition exceeds 360°C., preferably greater than 380°C., particularly preferably greater than 400°C.

7. A method of obtaining a polyphosphate derivative of 1,3,5-triazine compounds according to one of claims 1 to 6, characterized in that the phosphate or condensed phosphate 1,3,5-triazine compounds with an average degree of condensation n (srednekovoi value less than 20 is subjected to an atmosphere of ammonia heat treatment at a temperature in the range from 300 to 400°C to achieve an average degree of condensation is greater than 20 and the molar ratio between the 1,3,5-triazine compound and phosphorus (M/f) less than 1.1.

8. The method according to claim 7, characterized in that the heat treatment is carried out at a temperature in the range from 340 to 380°C., preferably from 370 to 380°C.

9. The method according to claim 7, characterized in that before the heat treatment polyphosphate derivative is crushed to particles with an average size of not more than 15 μm, preferably not more than 10 μm.

10. The method according to claim 7, characterized in that the heat treatment is conducted in an atmosphere of ammonia at concentrations from 0.1 to 100 wt.%, preferably from 1 to 30 wt.%, especially predpochtitel is from about 2 to 10 wt.%, first of all, from 3 to 5 wt.%.

11. The use of polyphosphate derivative of 1,3,5-triazine compounds according to one of claims 1 to 6 as a flame retardant for plastics, it is preferable for thermoplastic and thermosetting materials, primarily for glass fiber-reinforced polyamides, polyesters or polyolefins.

12. Fire retardant for plastics, it is preferable for thermoplastic and thermosetting materials, primarily for glass fiber-reinforced polyamides, polyesters or polyolefins containing at least one polyphosphate derivative of 1,3,5-triazine compounds according to one of claims 1 to 6.

13. The flame retardant according to item 12, characterized in that it additionally contains other known flame retardants.

14. The flame retardant according to item 12, characterized in that it additionally contains at least one phosphinate and/or diphosphinic.

15. The flame retardant according to item 12, characterized in that it contains phosphinate General formula (I) and/or diphosphinic General formula (II)
,
,
where R1and R2have identical or different meanings and refer to C1-C6alkyl straight or branched chain, With1-C7hydroxyalkyl straight or branched chain or aryl,
R3represents C1-C10alkylen straight or branched chain, With6-C10Allen,alkylaryl or arylalkyl,
M denotes Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base, preferably Ca, Mg, Al and Zn,
m denotes a number from 1 to 4
n denotes a number from 1 to 4 and
x denotes a number from 1 to 4.

16. The flame retardant according to item 15, wherein M represents Al.

17. The flame retardant according to item 15, wherein phosphinate is phosphinate General formula (I)
,
where R1denotes-CH3, -CH2OH, -C2H5, -CH(OH)CH3or-C(OH)(CH3)2,
R2denotes-CH2OH, -C2H4OH, -C3H6OH, or-CH(OH)CH3,
M represents Al and
m denotes a number from 1 to 4.

18. The flame retardant according to item 12, characterized in that polyphosphate polyphosphate derivative or derivatives and/or phosphinate, and/or diphosphinic, or phosphonate, and/or diphosphonate, and/or others known flame retardants deposited silicon-containing coating, and/or they are modified in a different way.



 

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1 tbl, 32 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing polymer material, enriched with phosphorus, which is used as a fireproof additive. A method is described for producing fireproof polymer material in two stages by reacting initial reagents in a reactor. The first stage involves reacting anhydrous phosphorous pentoxide with a second reagent, chosen from a group consisting of (a) diol, which is 1,3-propanediol and 1,4-butanediol, and (b) a mixture of cyclic ether and alcohol, obtaining polymer precursor material. The second stage involves reacting polymer precursor material with cyclic ether, for example ethylene oxide, propylene oxide and/or glycidol, obtaining the final product. Described also is a fireproof composition, which contains polymer material in form of a salt, obtained by reacting phosphoric ester with an amine, chosen from melamine and polyethylenimine.

EFFECT: obtaining water-insoluble intumescent polymer material which promotes reduction of flammability.

47 cl, 3 dwg, 5 tbl, 13 ex

FIELD: chemistry.

SUBSTANCE: there are disclosed polyfluoralkoxyphosphazene (co)polymers of general formula: , R is (OCF2)m1 or (OCF2)m1 and (OCF2)m2 only; m1=1-8, m2=3-8, and m1m2; n=1000-5000 for making oil-resistant, gasoline-proof and antifreeze materials.

EFFECT: invention can be used in various arts for making oil-resistant, gasoline-proof and highly antifreeze materials.

6 ex, 1 tbl

FIELD: organic chemistry, medicine, ophthalmology.

SUBSTANCE: invention describes homopolymers or copolymers comprising links of the formula (I): wherein R1, R2 and R3 mean independently of one another oxygen (O) or sulfur (S) atom; at least one radical among R1, R2 and R means sulfur atom (S); R5 means different bisphenols with high refraction index and methods for their preparing. These polymers are used especially in making articles used in optics and ophthalmology as lens. Also, invention proposes a method for making lens used in optics and ophthalmology by casting under pressure of polymers and conferring them lens form used in optics and ophthalmology.

EFFECT: improved preparing method.

21 cl, 4 tbl, 7 ex

FIELD: chemistry of organophosphorus compounds.

SUBSTANCE: invention relates to compounds with the bond C-P, namely to phosphorus-boron-containing methacrylate that can be used as inhibitor of combustion of polyvinyl alcohol-base film materials. Invention describes phosphorus-boron-containing methacrylate of the following formula: wherein n = 4-8. Polyvinyl alcohol films modified with indicated phosphorus-boron-containing methacrylate shows the enhanced refractoriness, rupture strength up to 206 kgf/cm2, water absorption up to 240% and relative elongation up to 12%.

EFFECT: valuable properties of substance.

1 tbl, 2 ex

The invention relates to the optical device, representing an ophthalmic lens blank lenses or preformed blank lenses and contain thermoplastic material corresponding to the formula

where n=20-200; R is hydrogen,or

and X is equal to 10-100 mol.%

0-90 mol.%

or 0-90 mol.%

FIELD: chemistry.

SUBSTANCE: said method is characterised by that, water containing ionic and non-ionic triazines in dissolved form is fed into at least one membrane filter (MF) element. The water is divided into a fraction rich in ionic triazines and a fraction rich in non-ionic triazines in the membrane filter element. The fraction rich in ionic triazines is then unloaded and the fraction rich in non-ionic triazines is re-circulated to production of melamine.

EFFECT: method allows for recycling a large portion of melamine present in triazine-containing water, total output of the method of producing melamine increases, amount of fresh water required for the wet part in melamine production decreases.

23 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to concentrated aqueous solutions of hexa-sulfonated stilbene used optical brighteners. Description is given of an aqueous solution of hexa-sulfonated stilbene optical brightener which is stable during storage with over 0.214 mol/kg content thereof in the solution. The solution does not contain a soluble agent, for example urea. By removing salts formed during synthesis of the optical brightener, its concentration of up to 0.35 mol/kg can be achieved without losing stability during storage. Also described is a method of preparing an aqueous solution of the said optical brightener and its use for bleaching paper or cellulose materials.

EFFECT: high concentration solutions of the said optical brightener do not show crystallisation signs after 2 weeks at 5°C and enables formation of coating compositions with low water content, which reduces energy consumption on drying and reduces penetration of water and adhesive into the paper layer.

10 cl, 1 dwg, 1 tbl, 3 ex

FIELD: agriculture.

SUBSTANCE: they use 2-(1H-1-pyrrolyl)-4-dipropylamino-6-(4-ethoxycarbonyl-5-methyl-1,2,3-triazole-1-yl)-1,3,5-triazine (PDET) with the following formula: , as antidote against phytotoxic effect of herbicide of 2,4-dichlorophenoxyacetic acid at germinated sunflower seeds.

EFFECT: increased length of roots and hypocotyl of germs.

1 tbl, 3 ex

FIELD: medicine.

SUBSTANCE: invention is related to compound of formula (I), (values of radicals are described in formula of invention) or its pharmaceutically acceptable salts, to methods of its production, pharmaceutical composition, which contains it. Application of invention is described for manufacturing of medicinal agent intended for provision of inhibiting action in respect to HDAC in warm-blooded animal, in production of agent used for treatment of malignant tumor. Method is also described for provision of inhibiting action in warm-blooded animal.

EFFECT: compounds have inhibiting activity in respect to HDAC.

15 cl, 17 tbl, 24 ex

FIELD: chemistry.

SUBSTANCE: new method is described for producing 2,4-dialkoxy-6-trinitromethyl-1,3,5-triazines of general formula , where R is Alk, possibly mono- or multi-substituted cyclo-Alk. The method involves reacting cyanuric chloride, trinitromethane salt Kt+C(NO2)3-, where Kt+ is a cation, and alcohol of formula R-OH, where R assumes values given above, in an inert organic solvent medium, such as acetone, acetonenitrile, tetrahydrofuran, and the reaction is preferably carried out in the presence of bases. The obtained compounds can be used as energy saturated materials, intermediate products during their synthesis, biologically active substances and/or intermediate products during their synthesis.

EFFECT: obtaining a target compound in a single stage and 45 to 65% output.

1 cl, 1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to hydroxyphenyltriazine UV-radiation absorbents for protecting transparent plastic containers or films and their contents. Description is given of oligoester or polyester with general formula -[A-O-D-O]x- as an additive to thermoplastic polymer material, where x - ranges from 1 to 50; A - is a hydroxytriphenyltriazine residue with formula (II) or assumes one of the values, indicated for T; D - C4-C12alkylene, which can be substituted with OH, and/or include O; L - C1-C18alkylene; C5-C12cycloalkylene; C3-C18 alkenylene, which can be substituted with phenyl, C7-C11alkylphenyl, C5-C12cycloalkyl, OH, halogen, C1-C18alkoxy group, C5-C12cyclolkoxy group, C3-C18alkenyloxy group, COOH; R1 - H, OR7 or OH under the condition that, at least one of R1 or R13 represents OH; R7 - hydrogen, C1-C12alkyl or L-CO-O-R9, where R9 - H, C1-C18alkyl, C2-C12hydroxyalkyl; R10 - hydrogen, C1-C4alkyl, Cl, phenyl or -OR7; R11 - hydrogen, methyl; R13 - hydrogen, methyl, OH, OR7; and T - is a bivalent acyl residue of aliphatic or cycloaliphatic C13-C60 dicarboxylic acid, and which includes at least one fragment with formula (II) and at least one fragment T.

EFFECT: effective protection of products in thin-walled containers or films.

13 cl, 8 ex

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