New plastifiing mixtures and plastisol compounds containing them
SUBSTANCE: mixture contains a plasticiser based on benzoate ester as a primary plasticiser and a compatibilizing plasticizing component. The primary dibenzoate plasticiser is selected from the group: diethylene glycol dibenzoate, dipropylene glycol dibenzoate, 1,2-propylene glycol dibenzoate, and mixtures thereof. The compatibilizing plasticizing component is dioctyl succinate, 3-phenylpropyl benzoate or 1,2-propylene glycol dibenzoate in case, it is not used as a primary plasticiser.
EFFECT: invention allows to produce plastisol compositions, phases of the liquid dispersant for the polymer, plasticizing mixtures having a low viscosity and good rheological characteristics.
13 cl, 10 dwg, 9 tbl, 7 ex
SUBSTANCE: described is material (version) which contains 1-99.8 wt % polydicyclopentadiene, 0.05-0.99 wt % antioxidant selected from: sterically hindered phenols, phenol derivatives, sterically hindered amine bases, 0.05-0.99 wt % saturated or unsaturated elastomer, 0.000018-0.00010 wt % catalyst; the rest of the amount of the material is modifying additives, which can be contained both separately and together in form of their different combinations, wherein the modifying additives are selected from a group A) cyclopentene, cyclooctene, cyclooctadiene, norbornene, norbornadiene; B) cyclopentadiene trimers and/or tetramers; C) dyes; D) compounds which alter activity of the catalyst system, selected from: amines, phosphines, phosphites, phosphoramides, organoaluminium compounds; E) filler materials, selected from: chopped glass or carbon fibres with diameter of 6-17 mcm and length 4-24 m, as well as structural glass, carbon and basalt fabric with thickness of 0.20-0.87 mm and density of 250-900 g/m2; F) multi-wall carbon nanotubes with 2-20 walls and diameter of 7-30 nm. Described is a method of producing said material, which contains polydicyclopentadiene, involving mixing, in any sequence, dicyclopentadiene, catalyst, antioxidant, elastomer and modifying additives with subsequent polymeriseation of the obtained reaction mass while heating from 30 to 210°C. Described also is material (version) which contains 1-98.9 wt % polycyclopentadiene and 1-98.9 wt % "полиэндикатов", and containing an antioxidant, an elastomer, a catalyst and modifying additives, the quality and amount of which correspond to said version of the material. Described is a method of obtaining said material, which involves further addition of "полиэндикатов" to the reaction mass before polymerisation.
EFFECT: high impact viscosity and glass-transition temperature of the obtained material owing to addition of small amounts of elastomer into the reaction mass, reduced amount of antioxidant used, high rate of polymerisation and possibility of using starting material with different purity.
30 cl, 26 ex
FIELD: organic chemistry, polymers, chemical technology.
SUBSTANCE: invention relates to new high-molecular cross-linked polyvinyl butyrals, to a method for their synthesis and to their applying also. Invention describes high-molecular cross-linked polyvinyl butyrals prepared by cross-linking polyvinyl butyral with diethyl- and/or dimethyl oxalate. Method for preparing indicated polyvinyl butyrals involves addition of a cross-linking agent and, if necessary, a plasticizing agent to the parent polyvinyl butyral, homogenization of the mixture and thermal cross-linking at temperature from 80°C to 280°C. Polyvinyl butyrals prepared by such method are components of films useful for manufacturing the triplex. Films made by using such polyvinyl butyrals show the rupture strength value at the level 29 N/mm2 and glasses made of such films show stability against the impact in F- and Sn-directions as 8 and 4, respectively.
EFFECT: improved preparing method, improved and valuable properties of films.
9 cl, 2 dwg, 13 ex
SUBSTANCE: invention relates to emulsion for paper gluing, which includes gluing agent based on maleated vegetable oil, representing maleated triglyceride, in which at least 50 wt % of the total content of fatty acids in triglycerides are monounsaturated. Invention also relates to paper-gluing agent, including maleated vegetable oil, in which at least 50 wt % of the total content of fatty acids in triglycerides are monounsaturated, and alkenyl succinic anhydride, and/or fatty acid anhydride, and/or anhydride of fatty acid and acetic acid, and/or anhydride of fatty acid and rosin acid. It also relates to method of obtaining paper-gluing emulsion, including emulsification of gluing agent based on maleated vegetable oil, which represents maleated triglyceride, in which at least 50 wt % of the total content of fatty acids in triglycerides are monounsaturated, in water phase by means of emulsifier and/or by means of intensive mixing; or mixing maleated vegetable oil, which represents maleated triglyceride, in which at least 50 wt % of the total content of fatty acids in triglycerides are monounsaturated, with alkenylsuccinic anhydride and/or fatty acid anhydride.
EFFECT: invention makes it possible to increase gluing efficiency.
26 cl, 17 ex, 7 tbl, 6 dwg
SUBSTANCE: invention relates to a multilayer film composite, an identification smart card, an identification document, a personal data medium etc, having a multilayer film composite, use of said multilayer film composite, production thereof and a polycarbonate or copolycarbonate composition. The multilayer film composite has at least one layer of polycarbonate or copolycarbonate and is characterised by that the polycarbonate or copolycarbonate further contains one or more additives selected from a group comprising petaerythritol tetrastearate, glycerol monostearate, propanediol stearate, stearyl stearate and mixtures of said compounds. Total concentration of the additives selected from said group ranges from 2.1 to 6% with respect to the weight of the composition.
EFFECT: obtaining a film for producing multilayer systems, having the necessary level of mechanical properties and characterised by a higher layering suitability compared to prior art, high layering adhesion and improved processing properties.
7 cl, 1 tbl, 1 dwg, 4 ex
SUBSTANCE: invention relates to a thermosetting epoxy resin-based composition and a semiconductor device made using said composition. The composition contains (A) a reaction mixture of triazine-derived epoxy resin and acid anhydride with the ratio of the epoxy group equivalent to the acid anhydride equivalent of 0.6-2.0; (B) an internal parting agent; (C) a reflecting material; (D) inorganic filler; and (E) a curing catalyst. The internal parting agent (B) contains a carboxylate ester of general formula (1): R11-COO-R12 (1) wherein R11 and R12 denote CnH2n+1, where n is a number from 1 to 30, and a compound of general formula (2): wherein R1, R2 and R3 are independently selected from H, -OH, -OR and -OCOCaHb under the condition that at least one of R1, R2 and R3 includes -OCOCaHb; R is CnH2n+1 (in which n is an integer from 1 to 30), a ranges from 10 to 30, and b ranges from 17 to 61. The semiconductor device comprises a semiconductor element encapsulated a cured product of said thermosetting epoxy resin-based composition.
EFFECT: invention enables to obtain a homogeneous product which retains whiteness, heat-resistance and light-resistance for a long period of time with reduced yellowing.
8 cl, 12 dwg, 4 tbl
SUBSTANCE: invention provides a layered material for multilayer glass, which includes an interlayer film for multilayer glass laminated with a retarding element placed between an adhesive layer A and an adhesive layer B, where the retarding element contains a liquid crystal compound and at least one compound selected from a group consisting of a compound of formula (1), a compound of formula (2) and a compound of formula (3) given below. In formula (1), n is an integer from 3 to 10, a R2 is a -CH2-CH2-, -CH2-CH(CH3)- or -CH2-CH2-CH2- group. In formula (2), R3 is a -(CH2)P- group or a phenylene group and p is an integer from 4 to 8. In formula (3), R4 is a substituted phenylene group. R1-1, R1-2 and R1-3 in formulae (1)-(3) are identical or different, each representing an alkyl group having a branched structure and containing at least 5 carbon atoms. [Formula 1].
EFFECT: providing a layered material for multilayer glass which demonstrates excellent heat resistance, small changes in retardation values in high-temperature gaseous media and can maintain stable optical properties.
11 cl, 2 tbl, 16 ex
SUBSTANCE: invention relates to electrical engineering, specifically to cable engineering and polymer compositions based on plasticised polyvinyl chloride (PVC) with low inflammability, release of smoke and hydrogen chloride during combustion, intended for insulating inner and outer sheaths of cables. The electrically insulating composition contains suspended polyvinyl chloride, an ester plasticiser - dioctyl phthalate, tricresyl phosphate, chalk, soot, a stabiliser - melanine, antipyrenes - magnesium hydroxide and ammonium polyphosphate, smoke absorber - chlorinated paraffins, lubricant agent - calcium stearate, antioxidant - diphenylol propane and filler - organoclay, which is a product of modifying montmorillonite from the Gerpegezh deposit of the Kabardino-Balkaria Republic with cation-exchange capacity of 95 mg-eq/100 g clay with urea, in amount of 10% of the mass of montmorillonite.
EFFECT: obtaining a composition characterised by high non-flammability and low release of smoke during combustion.
SUBSTANCE: invention relates to an improved method of recycling a glycerine-containing by-product of producing biodiesel fuel from renewable plant material containing more than 70% glycerine. The present task is solved by that, after distilling residual methanol, the glycerine-containing product is esterified by 3-10 fold molar excess of C4-C6 monobasic carboxylic acids in the presence of 0.5-1.5 wt % acid catalyst, at temperature of 90-120°C, using azeotrope-forming agents for 8-10 hours, which are needed to obtain triglycerides of C4-C6 carboxylic acids with output of 90%, which, after vacuum distillation, are a quality end product - plasticiser for PVC compositions. The obtained product is transparent, has no smell and has hazard class 4.
EFFECT: obtained product matches domestic and foreign plasticiser samples used in producing linoleum on basic characteristics.
3 tbl, 1 ex
SUBSTANCE: photovoltaic module contains: a laminate of a) a transparent front covering, b) one or more photosensitive semiconductor layers, c) at least one plasticiser-containing film based on polyvinyl acetal with polyvinyl alcohol content of more than 12 wt %, and d) a back covering. The module is characterised by that plasticiser-containing films c) based on polyvinyl acetal have glass-transition temperature Tg of at least 20°C. The invention also relates to use of the films based on polyvinyl acetal with content of polyvinyl alcohol of more than 12 wt %, having glass-transition temperature Tg of at least 20°C for filling cavities present in photosensitive semiconductor layers or electrical connections thereof when manufacturing photovoltaic modules.
EFFECT: films with said glass-transition temperature have high specific resistance.
10 cl, 2 ex, 1 tbl
SUBSTANCE: invention relates to preparing epoxide compounds and can be used as binder when producing polymer composite materials, as a base for adhesives, sealants and coatings. The invention can be used in aviation, aerospace, shipbuilding, automobile and other industries. The epoxide compound contains the following in pts.wt: nitrogen-containing epoxy resin 62.7-68.0, hardener - product of condensation of aniline and formaldehyde 30.0-32.5, oligoester acrylate 6.3-6.4 and benzoyl peroxide 0.05-0.07.
EFFECT: invention enables to obtain an epoxide compound and articles therefrom with high specific strength and low water-absorption.
2 cl, 3 tbl, 3 ex
SUBSTANCE: biodegradable thermoplastic composition contains cellulose diacetate containing 56.4% acetate groups, in amount of 25 pts. wt, biodegradable filler - starch in amount of 40-45 pts. wt, hydrolysed lignin in amount of 5-10 pts. wt and a plasticiser in amount of 25 pts. wt. The plasticiser is a mixture of dioxane alcohols and their high-boiling esters, obtained through distillation a light fraction with boiling point of 115-160°C from a floatation agent-oxal at pressure 5-10 mm Hg in amount of 25 pts. wt.
EFFECT: composition has good operational characteristics, articles made from said composition are biodegradable under the effect of natural factors.
1 tbl, 4 ex
SUBSTANCE: carboxylic acids are reacted with oxides and/or hydroxides of Zn and Ca metals in the presence of glycerin, ionol, epoxidated soya oil, epoxy resin, diphenylol propane, phosphite NF while heating, in which the complex stabiliser is obtained through reaction of carboxylic acids with oxides and/or hydroxides of Ca, Zn, Mg, Al in the presence of glycerin and additives selected from ionol, epoxidated soya oil, epoxy resin, diphenylol propane, phosphite NF, diphenyl-n-butylphosphite, PES-5 polyethylsiloxane liquid, Penta-1006 or Penta-1005 plastic modifier, calcium stearate while heating, in which the carboxylic acids used are oleic acid, 2-ethylhexane acid, α,α'-branched C10-C26 monocarboxylic acids. The carboxylic acids are first reacted with oxides and/or hydroxides of Zn, Ca, Mg, Al and glycerin at 140-180ºC to obtain a mixture consisting of salts of carboxylic acids and glycerin monoether of carboxylic acid, and an additive is added to the reaction mass only when acid number not greater than 5 mg KOH/g is reached. The process is carried out in the following ratio of components, wt %: carboxylic acids 6.3-60.4; oxides and/or hydroxides of metals 1.2-8.3; glycerin 8.5-20.4; additives - the rest.
EFFECT: simplification of the technological process of producing complex stabilisers of chorine-containing polymers, cutting on the number of technological operations, higher environmental safety of the process owing to prevention of formation of wastes and wider range of non-toxic complex stabilisers of chlorine-containing polymers.
2 cl, 27 ex, 3 tbl
SUBSTANCE: invention refers to bitumens, particularly bituminous-polymer compositions used in industry and/or road construction. Producing a bitumen/polymer composition uses a mother solution free from mineral oil, containing at least one herbal and/or animal oil, copolymer 20 to 50 wt % based on conjugated diene units and aromatic monovinyl hydrocarbon units, in relation to the mother solution weight, containing or free from at least one cross-linking agent, wherein the above herbal and/or animal oil is an acid; an acid value measured according to NF EN ISO 660 standard makes from 50 to 300 mg potassium hydroxide/g.
EFFECT: this mother solution characterised by the very high concentration of the polymer is stable and does not gelatinise that enables dissolving and using it for producing the cross-linked bitumen/polymer compositions and then bitumen mixtures.
15 cl, 2 tbl