The method of obtaining complex polyether polyols and composition for the production of rigid polyurethane foam |
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IPC classes for russian patent The method of obtaining complex polyether polyols and composition for the production of rigid polyurethane foam (RU 2114871):
      
 A method of obtaining a molded urethane elastomers / 2067101
The invention relates to methods for molding urethane elastomers with high cyclic durability and can find application in machinery for the manufacture of parts operating under conditions of dynamic loads and large deformations, in particular, in die production for the manufacture of elastic element presses for stamping large parts of the sheet metal
Moisture-hardened meltable glues, method of their manufacturing and their application / 2343167
Sewing in moist medium meltable glue for immediate processing of glued bases contains products of interaction of multi-functional (poly)isocyanates with complex hydroxypolyethers based on polyols and dicarboxylic acids or their derivatives, suitable for carrying out condensation reactions, as dicarboxylic acid at least one linear aliphatic dicarboxylic acid from group including octadecandicarboxylic acid and hexadecandicarboxylic acid, is used.
 Foamed polyurethane / 2411254
Invention relates to polyurethane used, for example, as seat cushions, decorative elements for the inside of cars etc, and to methods of producing said polyurethane via radical-initiated cross-linking in the presence of at least one agent which produces radicals and under the effect of ionising radiation, respectively. According to the given method, at least one polyfunctional isocyanate, at least one polyol which is completely or mainly polyether polyol with molecular weight higher than 1500, and foaming ingredients are subjected to addition polymerisation and a foaming reaction in the presence of at least one component with a reactive double bond to obtain a foamed mass with a polyurethane matrix. The polyfunctional isocyanate is not 4,4'-diisocyanate diphenylmethane or does not contain 4,4'-diisocyanate diphenylmethane, and the foamed mass undergoes radical-initiated cross-linking with the component with the reactive double bond which is an acrylate or methacrylate polymer containing at least two hydroxyl groups which also react with the said isocyanate so as to be embedded into the polyurethane matrix.
Polyesterpolyols having secondary alcohol groups and use thereof in synthesis of polyurethanes, such as flexible foamed polyurethanes / 2413738
Invention relates to polyesters which are used in synthesis of flexible foamed polyurethanes. Copolyester - a liquid at 50°C - has (a) an initiator segment which is a polyether with molecular weight between 300 and 1500 and at least two hydroxyl groups, and (b) at least three ester links per molecule of copolyester on average, where the said links are from a hydroxyl-containing fatty acid which contains 7 or more carbon atoms, or a mixture of two or more of the said fatty acids. The fatty acids contain a secondary hydroxyl which lies at least five carbon atoms from the carbonyl carbon atom of the acid group of the fatty acid and a primary hydroxyl with one or more hydroxymethyl groups. The copolyester contains 3.5-10 ester links per total number of hydroxyl, primary amine and secondary amine groups of the initiator compound.
 Method of producing epoxy polyurethanes / 2457220
Realisation of the present method involves reaction of polyol with expoxy resin at temperature 160-180°C for 50-60 minutes. The obtained mixture is then vacuum-treated for 5 minutes at pressure 3-5 mm Hg and cooled to room temperature. A calculated amount of isocyanate is added, stirred for 3-5 minutes and hardened.
Polyurethane coatings characterised by improved interlayer adhesion / 2489451
Composition contains: (a) an isocyanate component containing an aliphatic isocyanate and an aromatic isocyanate, and (b) a polyol component containing an acrylic polyol and a polyester-polyol, wherein the acrylic polyol contains a mixture of a hard acrylic polyol with glass transition temperature (Tg) higher than 20°C and a soft acrylic polyol with Tg lower than 20°C. Also described is a method of teating an aged polyurethane surface using said composition, as well as a substrate having an aged polyurethane surface and a polyurethane coating from the disclosed composition.
Method of obtaining polymer foam composition (versions) / 2542232
Invention relates to foamed polymers. A freshly prepared foam-polyurethane composition is mixed with a freshly prepared polyether or epoxy composition in the concentration of 0.1-99.9% or a monomer of a foam-polyurethane composition is mixed with a monomer of the polyether or epoxy composition in the concentration of 0.1-99.9%, and solidifying agents of the said compositions are mixed in exactly the same concentration, after which mixing of both monomers with both the solidifying agents is carried out.
 Aromatic copolymers and synthesis method thereof / 2427566
Copolymers can be used as heat-resistant construction materials.
 Aromatic copolyester-sulphone ketones and synthesis method thereof / 2436762
Invention relates to aromatic copolyester-sulphone ketones and synthesis method thereof. Aromatic copolyester-sulphone ketones can be used as heat resistant construction materials and are compounds of general formula:
 Aromatic copolyester ketones and method for production thereof / 2465262
Aromatic copolyester ketones are compounds of formula:
 Biodegradable polyester, method for production thereof and articles containing said polyester / 2499007
Invention relates to a biodegradable mixed aliphatic-aromatic polyester suitable for an extrusion coating, which contains links formed from at least a dicarboxylic acid and at least a diol, with long-chain branches, and substantially free from gel, characterised by shear viscosity of 800-1600 Pa*s, heat-resistance constant of less than 1.5*10-4, melt strength of 2-4.5 g and ultimate elongation greater than 30. The biodegradable polyester can be obtained by reactive extrusion from a linear polyester precursor containing links formed by dicarboxylic acid and diol and having melt flow index from 5 g/10 min to 30 g/10 min and terminal unsaturation content of 0.1-1% mol/mol. The method is realised by adding peroxides, epoxides and carbodiimides. The invention also relates to a layered article consisting of at least a base and at least a first layer consisting of the polyester disclosed herein, an extensible film, multilayer films and a composition suitable for extrusion coating, which consists of a biodegradable mixed aliphatic-aromatic ester and polylactic acid.
 Aromatic block copolyesters / 2506280
Present invention relates to high-molecular weight compounds, particularly block copolyesters which can be used as heat-resistant, high-strength film materials. Described are aromatic block copolyesters of formula
 Aromatic block copolyesters / 2506281
Invention relates to high-molecular weight compounds, particularly block copolyesters which can be used as heat-resistant, high-strength film materials. Described are aromatic block copolyesters of formula
 Aromatic block-copolyethers / 2515987
Described are aromatic block-copolyethers of formula
 Aromatic block-copolyethers / 2520565
Claimed invention relates to aromatic block-copolyethers. Described are the aromatic block-copolyethers of formula:
 Method of obtaining polyester polyols with small amount of dioxane wastes / 2525391
Claimed invention relates to obtaining and application of polyester polyols. described is method of obtaining polyester polyols, in which : at stage a) mixed are at least, one anhydride of carboxylic acid (A), selected from group, consisting of phthalic anhydride, trimellitic acid anhydride and pyrromellitic acid anhydride, and diethyleneglycol (B), and subjected to interaction, with molar ratio of components (B) to (A) being within the range from 1.5:1.0 to 0.7:1.0; total content of components (A) and (B) counted per the weight of all mixture components is within the range from 66 to 90 wt %, and at stage b) diethyleneglycol (B) is added to polyester polyol from stage a), with polyester polyol from stage a) has higher molecular weight than polyester polyol from stage b), polyester polyol from stage a) has molecular weight in the range 1400 and 430 g/mol and hydroxyl number in the range between 80 and 260 mg KOH/kg, polyester polyol from stage b) has molecular weight in the range 750 and 350 g/mol and hydroxyl number in the range between 150 and 320 mg KOH/kg, and at stage a) added is, at least, one other glycol (C) with 2-4 carbon atoms except diethyleneglycol and, at least, one aliphatic dicarboxylic acid (D) with 5-12 carbon atoms, and number of components (C) and (D) at stage a) is selected such that quantity of components (A), (B), (C) and (D) in mixture constitutes 100 wt %. Also described is method of obtaining foam polyurethane (PUR) or foam polyisocyanurate (PIR) styrofoams, including stages: a) interaction of polyester polyol, obtained by claimed method, with b) polyisocyanate-containing component, c) foaming agent, d) one or several catalysts, e) if necessary, with fire retardant and/or other auxiliary substances and additives. Described is application of foam polyurethanes (PUR) or foam polyisocyanurates (PIR), obtained by said method for obtaining metal-containing laminated composite materials. Described is metal-containing laminated composite element, including metal layer and layer, containing PUR- or PIR-styrofoam, obtained by method described above.
 Aromatic block-copolyetherketones / 2529024
Claimed invention relates to aromatic block-copolyetherketones. Described are aromatic block-copolyetherketones of formula:
 Polycondensation catalyst for producing polyester and method of producing polyester using polycondensation catalyst / 2418817
Invention relates to a polycondensation catalyst for producing polyester via an esterification or transesterification reaction between a dicarboxylic acid or ester-forming derivative thereof and glycol. The catalyst contains solid base particles coated with a layer of titanic acid in amount of 0.1-50 pts. wt in terms of TiO2, per 100 pts. wt of the solid base. The solid base is magnesium hydroxide or hydrotalcite. Solid base particles have on their surface an inner coating layer or an oxide layer of at least one element selected from silicon, aluminium or zirconium, or a composite oxide of at least two elements selected from silicon, aluminium and zirconium, in amount of 1-20 pts. wt per 100 pts. wt of the solid base. The outer coating layer consists of titanic acid in amount of 0.1-50 pts. wt of TiO2 per 100 pts. wt of the solid base. Described also is a method of producing said catalyst and a method of producing an ester in the presence of said catalyst.
 Radiation-curable compositions / 2425058
Composition contains a radiation-curable olibomer, having glass transition temperature Tg and/or melting point Tm lower than 30°C. The radiation-curable oligomer is obtained through reactionof one or more carboxyl functional polyesters with one or more monoepoxides modified with a (meth)acrylic compound, and/or one or more polyepoxides and one or more α, β-unsaturated carboxylic acids.
 Aluminium-containing polyester polymers, having low rate of formation of acetaldehyde / 2448124
Polyester composition contains a polyester polymer, having repeating alkylene arylate links, aluminium atoms and catalytically active titanium atoms. The polyester polymer has characteristic viscosity of at least 0.72 dl/g and residual content of acetaldehyde in polymer particles of 10 ppm or less. Aluminium atoms are residues of an aluminium compound of formula: Al[OR]a[OR']b[OR"]c[R'"]d, where R, R', R" denote an alkyl, aryl, acyl group or hydrogen, and R'" is an anionic group. The method of producing polyester polymers involves adding phosphorus atoms to molten polyester containing aluminium atoms and additional atoms of an alkali-earth metal or atoms of an alkali metal or residues of alkaline compounds, and catalytically active titanium atoms. Phosphorus atoms are added to the molten polyester before or after meeting conditions a), b), c), d), e) and f), given in the claim, but before the molten polyester solidifies.
 Polyester polymers with low rate of formation of acetaldehyde and high concentration of terminal vinyl groups / 2458074
Method of producing said polymer involves polycondensation of a polyester polymer in the presence of a polycondensation catalyst, adding a compound containing a catalyst deactivator after the polyester polymer achieves characteristic viscosity of 0.45 dl/g. Further, characteristic viscosity of the polyester polymer is increased to 0.72 dl/g to obtain a polyester polymer. The obtained polyester polymer has concentration of terminal vinyl groups equal to 0.8 microeq./g and rate of formation of acetaldehyde less than 22 ppm.
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(57) Abstract: The invention relates to the field of production of rigid foams based on complex polyether polyols can be used as heat and sound insulation and structural materials in construction, refrigeration, aviation, electronic and other industries and focused on the disposal of wastes of petrochemical production and expansion opportunities polyurethane foam through the use of secondary raw materials available. The invention provides a method of obtaining a complex of polyether polyols by reacting containing esters of di - and polycarboxylic acids or their anhydrides wastes of petrochemical production with polyhydric alcohols in the presence of an interesterification catalyst, in which the waste using a component selected from the group including VAT residue stage of regeneration of the glycol distillation residues from the organic synthesis of dimethyl terephthalate and a light fraction from the manufacture of phthalic anhydride and mixtures thereof. 2 C. and 7 C.p. f-crystals, 4 PL. The invention relates to the field of production of rigid foams based on complex politically, refrigeration, aviation, electronic and other industries. A method of obtaining a complex of polyether polyols by reacting containing esters of di - and polycarboxylic acids or their anhydrides wastes of petrochemical production with polyhydric alcohols in the presence of an interesterification catalyst, in which the waste use evaporative distillation residues column production of terephthalic acid and/or dimethyl terephthalate (DMTF) (ed. St. Czechoslovakia N 218170). Closest to the present invention is a method of obtaining a complex of polyether polyols by reacting containing esters of di - and polycarboxylic acids and/or their anhydrides, wastes of petrochemical production with polyhydric alcohols in the presence of an interesterification catalyst and fatty acids of tall oil, which as waste use distillation residues of distillation of DMTF (U.S. patent N 4897429). However, the known methods have limited capabilities due to the inaccessibility used as the source of the waste components petrochemical production. Known composition for the production of rigid penopoliuretane, water and polyether polyols, which are a mixture of polyethers and mud bottoms from organic synthesis DMTF in phenylhydrazine and debutalbum the ester of orthophthalic acid (see ed. St. USSR N 1195619). However, the known composition is characterized by the complexity of the composition and includes scarce solvents. The closest is a composition for the production of rigid polyurethane foam, comprising a polyisocyanate, a catalyst retinoblastoma, foaming agent, foam stabilizer, flame retardant, water and as polyether polyols and products interactions bottoms of the distillation process DMTF with polyhydric alcohols and fatty acids of tall oil, which as waste use distillation residues of distillation of DMTF (U.S. patent N 4897429). However, the known composition contains hard-to-reach raw materials. On the territory of many countries, including on the territory of the Republic of Belarus, there are specific petrochemical production, in particular organic synthesis DMTF, the production of phthalic anhydride wastes which are hazardous to the environment and therefore burned. Dunn is taking polyurethane foam through the use of secondary raw materials available. In accordance with one aspect of the invention provides a method of obtaining a complex of polyether polyols by reacting containing esters of di - and polycarboxylic acids or their anhydrides wastes of petrochemical production with polyhydric alcohols in the presence of a catalyst, preterition, in which the waste using a component selected from the group including VAT residue neutralization station exporter, distillation residues from the organic synthesis of dimethyl terephthalate and a light fraction from the production of phthalicanhydride, a mixture of the cubic remainder of the station exporter of still residue from the organic synthesis of dimethyl terephthalate and light fraction waste of phthalic anhydride, a mixture of the cubic remainder of the station of terephthalate and still bottoms from the organic synthesis of dimethyl terephthalate, a mixture of the cubic remainder of the station exporter and light fraction waste of phthalic anhydride and the mixture is still residue from the organic synthesis of dimethyl terephthalate and light fraction waste of phthalic anhydride, and CC the rest of the station headed the remainder of the station exporter - 300 - 700 Polyhydric alcohols - 130 - 360 The interesterification catalyst is 0.1 to 0.5, distillation residues from the organic synthesis of dimethyl terephthalate used in the following ratio, wt. including: Distillation residues from organic synthesis terephthalate - 300 - 600 Polyhydric alcohols - 220 - 440 The interesterification catalyst is 0.3 to 0.5, light fraction waste phthalic anhydride is used in the following ratio, wt. including: Light fraction waste phthalic anhydride - 70 - 200 Polyhydric alcohols - 150 - 415 The interesterification catalyst is 0.2 to 0.5, a mixture of the cubic remainder of the station exporter of still residue from the organic synthesis of dimethyl terephthalate and light fraction waste phthalic anhydride is used in the following ratio, wt. including: VAT residue neutralization station exporter - 50 - 100 Distillation residues from organic synthesis terephthalate - 200 - 300 Light fraction of phthalic anhydride - 10 - 30 Polyhydric alcohols - 180 - 450 The interesterification catalyst is 0.2 to 0.5, a mixture of the cubic residue stresult in the following ratio of components, wt. including: VAT residue neutralization station exporter - 60 - 100 Distillation residues from organic synthesis terephthalate - 200 - 300 Polyhydric alcohols - 270 - 450 The interesterification catalyst is 0.2 to 0.5, a mixture of the cubic remainder of the station exporter and light fraction waste phthalic anhydride is used in the following ratio, wt. including: VAT residue neutralization station exporter - 30 - 60 Light fraction waste phthalic anhydride - 100 - 200 Polyhydric alcohols - 240 - 500 The interesterification catalyst is 0.3 to 0.5, a mixture of still residue from the organic synthesis of dimethyl terephthalate and light fraction of the phthalic anhydride used in the following ratio, wt. including: Light fraction waste phthalic anhydride - 100 - 200 Distillation residues from organic synthesis terephthalate - 40 - 90 Polyhydric alcohols - 260 - 540 The interesterification catalyst is 0.3 - 0.5 Additionally, the composition may include chain extension, for example oil. Another aspect of the invention is a composition for recip is t, foam stabilizer, flame retardant, water and complex polyether polyols, which are products of the interaction of polyhydric alcohols with waste petrochemical production containing esters of di - and polycarboxylic acids or their anhydrides, in the presence of an interesterification catalyst, in which a complex polyether polyols are products of the interaction of polyhydric alcohols with waste selected from the group including VAT residue neutralization station exporter, distillation residues from the organic synthesis of dimethyl terephthalate, light fraction waste of phthalic anhydride and mixtures thereof, have a hydroxyl number of not more than 550 mg KOH/g and an acid number of not more than 3.5 mg KOH/g and are included in the composition in the following ratio, wt. including: The polyether polyols - 70-120 Catalyst retinoblastoma - 1,5-18,0 Foaming agent - 12-26 Foam stabilizer - 1,5-6,0 Fire retardant - 18-80 Water - 1-2 The polyisocyanate - 135-255 The proposed quantitative ratio of the components of the composition of the polyurethane foam is provided by the introduction to the complex composition of polyether polyols obtained according to the proposed method. The polyether polyols obtained as is atok neutralization station DMTF, distillation residues from organic synthesis DMTF, a light fraction of the phthalic anhydride, the mixture of the cubic remainder of the station DMTF, still bottoms from organic synthesis DMTF and light fraction of the phthalic anhydride, the mixture of the cubic remainder of the station DMTF and still bottoms from organic synthesis DMTF, a mixture of the cubic remainder of the station DMTF and light fraction of the phthalic anhydride and the mixture is still residue from the organic synthesis and light fraction of phthalic anhydride and polyhydric alcohols and interesterification catalyst, the contents stirred with a mechanical stirrer at 300 to 500 rpm while heating to 120-135oC and kept at this temperature for 2.5 h, and then gradually at a speed of 40-50 deg/h heated up to 170-190oC and incubated with constant stirring for 4-5 hours polyether polyols Obtained is cooled to room temperature. To obtain foams complex polyether polyols obtained by the above method, are placed in a plastic container and add the following components: catalyst retinoblastoma, foaming agent, foam stabilizer, Oh mass. Then add the polyisocyanate, the mixture is stirred and poured into a cardboard form, where the foaming and curing of the polyurethane foam. For stabilizing the structure of the resulting polyurethane foam was incubated over night at room temperature. When introduced into the composition of polyether polyols with a hydroxyl number greater than 550 mg KOH/g and acid value of more than 3.5 mg KOH/g is not foaming composition. In accordance with this invention using the following components: VAT residue neutralization station DMTF (VAT residue stage regeneration of glycol-COREG) has the following chemical composition, wt.%.: The glycol - 20,0 - 25,0 Digitaltraffic - 60,0 - 70,0 The terephthalate - 3,0 - 5,0 Pet - 5,0 - 17,0 Distillation residues from organic synthesis DMTF are a complex mixture of compounds and, depending on the depth of organic synthesis can be the following chemical composition. VAT residue I from organic synthesis DMTF includes: Methylbenzoate - 0,1 - 0,5 Methylbenzoate-n-teleilat - 0,5 - 3,0 N-formylbenzoate - 0,2 - 1,0 The terephthalate - 10,0 - 15,0 Dimethyltotal - 2,0 - 4,0 Dimethylformamide acids - 9,0 - 12,0 Dimethyl ether benzoquinonediimine acid - 3,0 - 6,0 Neinditsiruemye connection - 4,0 - 8,0 High-molecular substances volatile composition - 40,0 - 60,0 VAT residue III organic synthesis DMTF includes: N-formylmethylene - 1,2 - 2,0 The terephthalate, dimethylacetal, dimethyltotal (total) - 15,5 - 25,0 N-colortail - 4,4 - 6,0 Timetravel ether trimellitic acid - 15,0 - 25,0 Dimethyl esters diphenylcarbonate acid - 6,0 - 8,0 Trimethylamine esters diphenylcarbonate acid - 10,0 - 14,0 Neinditsiruemye connection - 12,0 - 18,0 High-molecular substances volatile composition - 20,0 - 25,0 VAT residue V from organic synthesis DMTF includes: The terephthalate - 1 - 3 N-methyl-n-carbomethoxybiphenyl - 5 - 6 Trimethylamine esters trimellitic acid - 0,3 - 0,6 N-colortail - 0,25 - 0,5 Dimethyl esters diphenylcarbonate acid - 12 - 17 Trimethylamine esters diphenylcarbonate acid - 1,5 - 3,5 Neinditsiruemye connection - 60 - 63,9 High-boiling compounds volatile composition - 92 - 97 Light fraction waste phthalic anhydride is shedding with a density of 1.5 kg/cm3- 25,0 - 30,0 As the polyhydric alcohols used ethylene glycol (GOST 9710-E), tetraethylene glycol (TC 6-06-e-82), glycerin (GOST 6824-76), triethanolamine (STU 12-10126-61). As a catalyst for interesterification using zinc acetate (TU 6-09-3962-75) or sodium carbonate (GOST 83-79). As chain extension using oil (TU 6-03-476-82), which is a waste product of caprolactam, or distillirovannoi tall oil (TU 40001777-26-85). As a catalyst retinoblastoma use tertiary amines include triethanolamine, dimethylethanolamine, N-butanediamine, solutions of alkali metals in the glycols, for example, 20% potassium acetate in tetraethylene glycol. Foaming is carried out by introducing into the composition boiling liquids such as freon - 123, ozone-friendly freon - V, pentane and cyclopentane or their mixtures, or the carbon dioxide formed by the interaction of MDI with water, or a combination of both. As foam stabilizers used block copolymers cap 2, exits-B and leprosy. As a flame retardant use trichlorethylene, postpolio-II, decabromodiphenyl oxide, and Tr is the EP 1. In a glass three-neck flask with a capacity of 1 l equipped with a thermometer, mechanical stirrer and reflux condenser connected to a trap Dean-stark load of 300 g of the cubic remainder of the station DMTF, 50 g of ethylene glycol, 80 g tetraethyleneglycol and 0.1 g of zinc acetate. Then the flask is heated to 120oC and maintained at this temperature for 2.5 h, after which the temperature was adjusted to 170oC and maintained at this temperature for 5 h under constant stirring. The resulting methyl alcohol and water trap trap Dean-stark. After the process is complete, the flask was cooled to room temperature. The quantitative proportions of the starting components and physico-mechanical properties of the resulting complex polyether polyols on the basis of individual types of waste generated in example 1 and subsequent examples, is presented in table. 1, the same on the basis of mixtures of waste - in table. 2. From table. 1 and 2 it follows that when the composition of the starting components, corresponding to their proposed technical solution, get complex polyether polyols having a low hydroxyl value and acid number, as well as low viscosity and high enough plotno polyurethane foam. The quantitative ratio of the polyurethane compositions and physico-mechanical properties of the obtained foams on the basis of individual waste types are presented in table. 3, the same on the basis of mixtures of waste - in table. 4. The use of the proposed complex of polyether polyols in the composition at a specified quantitative ratio of the components allows to obtain a rigid polyurethane foams with fine closed-cell insulation structure, has good strength characteristics at relatively low density. One of the main advantages of the polyurethane foams obtained according to the present invention, a dimensional stability at both low and at high temperatures and their low thermal conductivity. The aromatic structure of polyether polyols provides polyurethane foams good fire resistance. In addition, the polyurethane foam is suitable for filling structures of complex configuration. 1. The method of obtaining complex polyether polyols by reacting waste production terephthalate with polyhydric alcohols in the presence of an interesterification catalyst, characterized in that as waste production use component, wybodaeth phthalic anhydride, a mixture of the cubic residue stage of regeneration of the glycol still bottoms from the organic synthesis of dimethyl terephthalate and light fraction waste of phthalic anhydride and a mixture of two of these wastes, in any combination. 2. The method according to p. 1, characterized in that when using VAT residue stage regeneration of glycol interaction are in the following ratio of the original substances, wt.h.: VAT residue stage regeneration of glycol - 300 - 700 Polyhydric alcohols - 130 - 360 The interesterification catalyst is 0.1 to 0.5 3. The method according to p. 1, characterized in that when using light fraction waste phthalic anhydride interaction are in the following ratio of the original substances, wt.h.: Light fraction waste phthalic anhydride - 70 - 200 Polyhydric alcohols - 150 - 415 The interesterification catalyst - 0,2 - 0,5 4. The method according to p. 1, characterized in that when using a mixture of the cubic residue stage of regeneration of the glycol still bottoms from the organic synthesis of dimethyl terephthalate and light fraction waste phthalic anhydride interaction are in the following ratio chodanickaja synthesis terephthalate - 200 - 300 Light fraction waste phthalic anhydride - 10 - 30 Polyhydric alcohols - 180 - 450 The interesterification catalyst - 0,2 - 0,5 5. The method according to p. 1, characterized in that when using a mixture of the cubic residue stage regeneration of glycol and still bottoms from the organic synthesis of dimethyl terephthalate interaction are in the following ratio of the original substances, wt.h.: VAT residue stage regeneration of glycol - 60 - 100 Distillation residues from organic synthesis terephthalate - 200 - 300 Polyhydric alcohols - 270 - 450 The interesterification catalyst - 0,2 - 0,5 6. The method according to p. 1, characterized in that when using a mixture of the cubic residue stage regeneration of glycol and light fraction waste phthalic anhydride interaction are in the following ratio of the original substances, wt.h.: VAT residue stage regeneration of glycol - 30 - 60 Light fraction waste phthalic anhydride - 100 - 200 Polyhydric alcohols - 240 - 500 The interesterification catalyst is 0.3 - 0.5 7. The method according to p. 1, characterized in that when using a mixture of still residue from the organic synthesis of dimethyl the AI of the original substances, wt.h.: Light fraction waste phthalic anhydride - 100 - 200 Distillation residues from organic synthesis terephthalate - 40 - 90 Polyhydric alcohols - 260 - 540 The interesterification catalyst is 0.3 - 0.5 8. The method according to PP.1 to 7, characterized in that the interaction is carried out in the presence of chain extension, for example oil - waste production of caprolactam. 9. Composition for the production of rigid polyurethane foam, comprising a polyisocyanate, a catalyst retinoblastoma, foaming agent, foam stabilizer, flame retardant, water and complex polyether polyols based waste product of dimethyl terephthalate and polyhydric alcohols, characterized in that as polyether polyols and it contains complex preferability formed by the interaction of polyhydric alcohols with kubovy the remainder of the stage of regeneration of the glycol, or kubovy the remainder of the production of dimethyl terephthalate, or with a slight fraction of the waste production of phthalic anhydride, or a mixture of two or three of these waste products, with a hydroxyl number not exceeding 550 mg KOH/g and an acid number of not more than 3.5 mg KOH/g in the following ratio, wt.h.: The polyisocyanate - 135 - 255 Fire retardant - 18 - 80 Water - 1 to 2 These complex polyether polyols - 70 - 120 RUB
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