Method of producing plasticisers
SUBSTANCE: invention relates to a method of producing plasticiser for polymer materials from renewable material, such as esters of fatty acids. In accordance with invention, plasticiser is obtained by oxidation of alkyl esters of fatty acids of vegetable origin with oxygen-containing gas in presence of homogeneous catalysts - molybdic acid esters, and aliphatic dihydric alcohols. Process of oxidising is preferably carried out at 100-120 °C and atmospheric pressure.
EFFECT: simplified process.
2 cl, 2 tbl, 12 ex
SUBSTANCE: invention relates to a film consisting of a mixture of a polyvinyl chloride polymer, a polyester and additives, thermoformed articles and a method of producing the film. The film from a mixture of vinyl chloride polymers includes 70-97 wt % of one or more vinyl chloride polymers with a coefficient K of 50-90, 2-25 wt % of additives selected from a group consisting of modifiers, high-molecular weight polymers, stabilisers, waxes, polymer anticaking agents, dye substances, plasticisers, auxiliary agents for improving processability and 0.1 wt % to less than 5 wt % polycrystalline or amorphous polyester with a crystallisation half-period in molten state of less than 5 min with respect to the total weight of the mixture of vinyl chloride polymers. The film is obtained by extruding or calendaring a plasticised mixture of vinyl chloride polymers, followed by optional treating in a built-in or self-contained process and optional thermoforming.
EFFECT: film has good thermoforming capacity and is suitable for packaging mass-production items.
19 cl, 2 tbl, 4 dwg
SUBSTANCE: invention refers to polyvinylchloride electrically insulating compositions applicable in the cable industry for manufacturing of insulation applicable for cabling and wiring products. The electrically insulating composition contains suspension polyvinyl chloride, plasticising ester, lead stabiliser, calcium stearate, ionol, diphenylpropane, hydroxide antipyrene, chalk, zinc oxide, antimony oxide, zinc borate, stearic acid, epoxidised soyabean oil, chlorinated paraffin, as well as organoclay.
EFFECT: invention possesses the increased oxygen index and improved physical-mechanical characteristics.
1 ex, 1 tbl
SUBSTANCE: invention relates to polymer processing, particularly production of synthetic leather which can be used for pool finishing. The bioresistant waterproofing polymer material includes a polyester base and a polyvinyl chloride coating. The base is made of cross-weave polyester threads with mesh size of 2x2 mm, wherein the weight ratio of the layers - front:intermediate:back is 9:1:9, respectively, and the weight ratio of the layers - polyester base:polymer coating is 1:18. The polyvinyl chloride coating is obtained from suspended polyvinyl chloride and additionally contains a mixture of plasticisers - dioctyl phthalate, dioctyl adipate, diglycidyl ester of 1,4-butanediol laproxide BD with weight ratio of epoxy groups of 24-34% and synthetic butadiene-nitrile rubber with weight ratio of acrylonitrile of 26-30% in ratio of 1:0.8:0.2:0.6, respectively; the stabiliser used is Baerostab UBZ 711-1x RF; the bactericidal additive is Bioneutral M 10; the composition is coloured using pigments.
EFFECT: invention provides resistance to wearing loads and atmospheric phenomena, the effect of microorganisms and formation of algae, temperature drops, as well as shearing strength of a welded joint.
4 tbl, 8 ex
SUBSTANCE: invention relates to formulation of polymer composition based on non-plasticised polyvinyl chloride (UPVC), which is applied in production of free-flow (sewage) pipes by method of extrusion. Polymer composition for production of pipes contains NPVC with value of Fikentscher constant (K) 66.0-69.0 and bulk weight 0.4-0.6 g/cm3, calcium carbonate, complex thermostabiliser: tribasic lead sulphate Pb2(SO4)3 - 17%, bibasic lead phosphite 2PbO·PbHPO3·0,5H2O - 18%, lead stearate Pb(C18H35O2)2 - 28%, calcium stearate Ca(C18H35O2)2 - 27%, antioxidant - 10%, impact resistance modifier: chlorinated polyethylene CPE 135, fluidity modifier: acryl processing anti-stick additive, lubricant: polyethylene wax, stearic acid, soot. Polymeric composition can additionally include recycled furniture PVC film or recycled waste PVC panels. Mixing of all components is carried out in three stages: mixing in hot mixer, mixing in cold mixer, exposure of mixture at temperature 15-30°C for 24 hours. Prepared in such way mixture is supplied in extruder.
EFFECT: invention makes it possible to obtain polyvinyl chloride product with high impact viscosity, perfect quality of external and internal surfaces and low prime cost.
3 cl, 2 tbl
SUBSTANCE: electrically insulating composition consisting of suspension polyvinylchloride, ester and, when required, phosphate plasticiser, lead or calcium-zinc stabiliser, antioxidant, antimony oxide, zinc oxide, zinc borate, epoxidated vegetable oil comprises additionally sized aluminium hydrate or magnesium hydrate or their mixture, sized calcium carbonate, sized calcium-magnesium hydroxycarbonate and calcium-aluminium hydroxycarbonate at certain ratio of component.
EFFECT: reduced toxicity, corrosion activity and fume emission.
2 cl, 1 tbl, 1 ex
SUBSTANCE: invention relates to field of obtaining novel film-forming substances based on polyvinylchloride and can be applied in paint and varnish industry. In method of obtaining modified polyvinylchloride at stage of mixing in capacity reactor vinylated alkyd is introduced into reaction mass of copolymer of polyvinylchloride and solvent, heating of mixture to 50-60°C is realised with its further bringing to required parameters. Quantity of copolymer of polyvinylchloride constitutes 20-25 weight parts of the total reaction mass, quantity of vinylated alkyd constitutes 6-10 weight parts of the total reaction weight, with toluene in quantity 70-75 weight parts of the total reaction mass being applied as solvent.
EFFECT: improvement of film-forming properties of solutions of polyvinylchloride copolymers and physical-mechanical properties of films on their base due to introduction of vinylated alkyds.
4 cl, 1 tbl
SUBSTANCE: invention relates to filled composite polymer materials, intended for floor vibration-absorbing coatings and can be used in ship-building, civil and industrial construction and other fields. The composite polymer material represents a rubber mixture of a various colour range based on a combination of butadiene-nitrile rubber and cis-isoprene rubber, processed by the moulding method. The rubber mixture includes sulpheneamide, thiuram, N,N'-dithiodimorpholine, zinc oxide, stearic acid, styrene-indene resin, 2,5-ditertbutylhydroquinone, a fire-retardant - antimony trioxide, and chloroparaffin CP-1100, a water-absorber - calciumnaphth. The method of mounting includes the application of the polyurethane-based water-resistant glue composition with the provision of exfoliation strength up to 8-10 kN/m. The invention makes it possible to improve dynamic parameters, elasticity, reduce wear, increases the sealing ability and exploitation properties of the material.
EFFECT: material provides coatings with toxicological safety, is fire-resistant, has high strength of fixation to the mounting surface.
2 cl, 3 tbl
FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to the medical industry and concerns a plastic compound of a polyvinylchloride (PVC) composition for two types of medical devices applicable for extrusion treatment and pressure moulding. The plasticised composition for the medical devices contains polyvinylchloride resin with K-value 70, epoxidised vegetable oil, calcium stearate, zinc stearate, polyethylene wax as an outer lubricant, trioctyl trimellitate (TOTM) or 1,2-cyclohexane-dicarboxylic acid-diisonyl-ester or acetyl-tri-butyl-citrate (ATBC) as a plasticising agent. Besides, 4-methyl-2,6-di-tert-butylphenol (ionole) or 4-methyl-2,6-isobornylphenol is used as a stabilising agent and antioxidant. Additionally, the PVC composition can contain polyvinylchloride resin with K-value from 58 to 64 units in specific proportions. The invention is used for various PVC plastic compound devices, films, main lines (tubes) and devices produced by extrusion and pressure moulding applied for producing polymer medical devices, preferentially for blood banking. The devices made of the composition can be sterilised both by radiation, and steam.
EFFECT: invention provides the fixed properties of the devices and stored products over the whole shelf life. The plastic compound can be processed well by using additional outer lubricants and possesses high thermal stability.
3 cl, 3 ex
SUBSTANCE: invention relates to a polymer composition for moulding, a method of the composition obtaining, to manufacturing moulded products, a packaging material, as well as to the application of a diester or a mixture of two and more diesters of diol of a linear or a branched structure as a lubricant. The composition contains, at least, one thermoplastic polymer, at least, one pigment or, at least, one filler or their mixture, as well as, at least, one diester of diol of a linear structure, having from 2 to 8 carbon atoms, with linear or branched, saturated or unsaturated monocarboxylic acid with 6-44 carbon atoms. A fraction of diesters with residues of various fatty acids in a molecule constitutes less than 10 wt % of the total amount of the diesters.
EFFECT: invention makes it possible to provide the obtained products with good thermoplastic properties, good moulding properties and the preservation of glossy shine.
17 cl, 2 ex
FIELD: process engineering.
SUBSTANCE: set of inventions relates to bar for decorative welding and to method of its fabrication. This bar comprises unfused and painted PVC-based particles and plastisol-based gel composition containing PVC resin in benzoate plasticizer and unfused PVC-based particles. The latter feature size and colour identical or similar to particles used in connected elements of decorative surface. Proposed method comprises the steps that follow: liquid mix of PVC resin in benzoate plasticizer is mixed with PVC-based particles, obtained mix is placed on conveyor belt, heated to gel and sheet formation. plastisol-based gel composition containing PVC resin in benzoate plasticiser. Then, the sheet is pressed to make several welding bars.
EFFECT: higher flexibility, adhesion and melt temperature, ease of cutting.
11 cl, 7 dwg, 1 ex
SUBSTANCE: invention relates to method of obtaining salts of epoxidised carboxylic acid, which are applied as stabiliser and plasticiser for halo-polymers, in production of lacquers, surface-active compositions, which are applied as flotation agents, as well as additives in production of tyre cord. Method is realised in two stages: epoxidation and neutralisation. Epoxidation of unsaturated carboxylic acids is realised at interaction of hydrogen peroxide in quantity 6.0-40% wt, formic or acetic acid in quantity 5.0-50% wt, surface-active substances alkylbenzyldimethylammonium chlorides in quantity 0.1-10% wt, and heterogeneous melt aluminonickeltitanium catalyst in quantity 0.1-5.0% wt. Neutralisation of epoxidised carboxylic acids is realised by hydroxides of lithium, sodium, potassium, calcium and zinc at temperature 80-90°C.
EFFECT: increased output of target salts and improvement of their plasticising and thermo-stabilising properties.
8 tbl, 7 ex
SUBSTANCE: invention relates to a novel chemical compound - 4-(2,3-epoxypropoxy)phenyl ether of 4-propyloxybenzoic acid
Said compound exhibits polyvinyl chloride light and heat stabiliser properties and has the structural formula given below.
EFFECT: use of the compound as a light and heat stabiliser of polyvinyl chloride enables to process said polymer without decomposition thereof and provides improved characteristics of polymer films when used based on both their strength properties and elasticity.
1 cl, 2 tbl, 1 ex
SUBSTANCE: present invention relates to a stabilised composition containing thermoplastic, thermoplastic elastomer, rubber or lubricant, and a liquid composition of a styrene-containing phenol compound in amount ranging from about 0.01 wt % to about 10 wt % with respect to total weight of the stabilised composition, wherein said composition of a phenol compound contains: (a) at least one 2,6-distyrene-containing p-cresol in amount ranging from about 80% to about 95% per total gas-chromatographic area; (b) at least one monostyrene-containing p-cresol in amount of more than 1% per total gas-chromatographic area; and (c) at least one tristyrene-containing p-cresol in amount of more than 1% per total gas-chromatographic area, wherein the composition contains monostyrene-containing p-cresol and tristyrene-containing p-cresol in a combination in amount ranging from 5 to 20% per total gas-chromatographic area. The present invention also relates to a polymer article and a lubricant containing said composition of a phenol compound.
EFFECT: obtaining stabilisers for polymers and lubricants with high efficiency while maintaining the required fluidity and parameters for storage at normal transportation temperatures.
13 cl, 1 dwg, 19 tbl, 14 ex
SUBSTANCE: intermediate layer of multilayer glazing is made from polyvinyl butyral and contains agents which selectively absorb infrared radiation. The intermediate layer contains lanthanum hexaboride in amount of 0.005-0.1% of the weight of the polyvinyl butyral sheet which effectively absorbs infrared radiation at 100 nm. The intermediate layer also contains an epoxide agent selected from a group consisting of poly(oxypropylene)glycol diepoxides, 2-ethylhexyl glycidal ether, epichlorohydrin and polypropylene glycol in amount of 0.1-10.0% of the weight of the polyvinyl butyral sheet.
EFFECT: intermediate layer has excellent characteristics for selective attenuation of infrared radiation, which do not deteriorate due to the effect of the surrounding medium.
4 cl, 3 dwg, 1 tbl, 6 ex
SUBSTANCE: invention relates to food product packaging materials which include wrappers, containers, laminated plastics, sausage casing or their combination, which have the desired combination of at least two properties such as impermeability, hardness, extrusion resistance, bubble resistance, film strength, welding window and polarisation efficiency or rate. The article has a monolayer film obtained through extrusion blowing from a composition which contains at least one vinylidene chloride polymer which contains vinylidene chloride and at least one alkylacrylate selected from methylacrylate, ethylacrylate or butylacrylate or their combination in amount of 3.8-7.5 mol % of monomer content of the vinylidene chloride polymer and at least one plasticiser present in amount of 3-9 pts. wt per hundred parts of the polymer, and selected from ester plasticisers and combinations of ester plasticiser and epoxy plasticiser, where alkylacryate is present in amount which results in at least four defined characteristics. The invention also includes a method of moulding films used in the said articles.
EFFECT: improved technical characteristics of the polymer.
10 cl, 2 dwg, 3 tbl, 8 ex
FIELD: polymer materials and composites.
SUBSTANCE: invention relates to epoxide compositions, in particular to preparation of hot-molded thermally curable epoxide compositions used as binders in manufacture of composite materials and products thereof. Binder comprises 60-70% 4,4'-isopropylidenediphenol epoxide resin, amine-type curing agent, and additionally 5-15% aliphatic epoxide resin (DEG-1) and 1-5% phenyl glycidyl ether. Curing agent (utilized in balancing amounts) is aniline-formaldehyde condensation product, condensation being carried out in presence of acid catalyst and giving aminobenzylaniline as main condensation product.
EFFECT: achieved high and stable physicochemical characteristics of glass-plastic articles.
2 tbl, 5 ex
SUBSTANCE: raw material composition based on fatty acids or esters of fatty acids, obtained by hydrolysis of oil from seeds or by re-etherification of oil from seeds with C1-8-alkanol, contains more than 70 wt % of unsaturated fatty oleic acid, and less than 1.5 milliequivalents of admixture(s), poisoning methathesis catalyst, per kilogram of composition, after purification with adsorbent. Admixture contains one or more organic hydroperoxides. Method of olefin methathesis lies in contacting of raw composition, obtained from seed oil and containing one or more unsaturated fatty acids or esters of unsaturated fatty acids, with lower olefin in presence of catalyst based on phosphororganic transition metal complex. Used raw material composition contains less than 25 milliequivalents of admixture(s), poisoning methathesis catalyst, per kilogram of raw material composition, able to inhibit methathesis catalyst. As a result of reaction olefin with shortened chain and unsaturated acid or unsaturated ester with shortened chain is obtained. Method of obtaining complex polyether polyepoxide lies in carrying out the following stages. At the first stage raw material compositiojn, obtained from seed oil, containing one or more unsaturated fatty acids or esters of fatty acids, contacts with lower olefin in presence of olefin methathesis catalyst. Used raw material composition contains less than 25 milliequivalents of admixture(s), poisoning methathesis catalyst, per kilogram of composition. At the second stage (re)etherification of obtained unsaturated acid with shortened chain or unsaturated ester with shortened chain with polyol is carried out. At the third stage epoxidation of obtained complex polyether polyolefin is carried out with epoxidising agent optionally in presence of catalyst. Method of obtaining α,ω-oxoacid, complex α,ω-oxyester and/or α,ω-diol with shortened chain lies in carrying out the following stages. At the first stage raw material composition, obtained from seed oil, containing one or more unsaturated fatty acids or esters of fatty acids contacts with lower olefin in presence of olefin methathesis catalyst. Used raw material composition contains less than 25 milliequivalents of admixture(s), poisoning methathesis catalyst, per kilogram of composition. At the second stage hydroformilation is carried out with hydrating of obtained unsaturated acid or ester with shortened chain in presence of hydroformiolation/hydration catalyst.
EFFECT: increase of catalyst serviceability and obtaining chemical compounds with high productivity.
25 cl, 3 tbl, 12 ex
SUBSTANCE: invention relates to the compounds with formula , where R, selected from H, SiR'3, SOR', SO2R', C(=O)R' or not necessarily substituted C1-C6alkyl; R' is selected from the C1-C6alkyl group; R" is selected from CH2OR, C1-C6alkyl, C1-C6halogenalkyl, C2-C6alkenyl or C1-C6alkylidene; substitutes are the alkoxigroup. The invention also relates to the compounds with the formula , , , , where R1, R2, R4 and R6 are selected from PMB, benzyl, 2,6-dimethylbenzyl, o-nitrobenzyl, 2,6-dichlorbenzyl, 3,4-dichlorbenzyl, TBS, TES, TBDPS, TIPS and TMS; R5 is selected from OR', N(R')2, N(R')(C1-C4alkoxi); and -R' is selected from C1-C6alkyl and C7-C10aralkyl, L is the stereospecific leaving group. The method for synthesis of the compound with formula 5 is invented, which includes removal of the protective groups from the precursor's hydroxyl groups. The methods for producing the compounds with the formulas 14 and 26 are invented, which include the precursor's tailing by interacting with CH3C(O)R5, where R5 is the group selected from OR', N(R')2, N(R')(C1-C4alkoxi); and R' is C1-C6alkyl and C7-C10aralkyl. The method for producing the compounds with the formulas 19 and 30 , which include the precursor's tailing by interacting with ethylmagnesiumbromide. The pharmaceutical composition based on the compound with the formula I with the cytotoxic activity is invented.
EFFECT: production of pharmaceutical agent for tumor treatment is available.
47 cl, 1 tbl, 93 ex
FIELD: process engineering.
SUBSTANCE: invention relates to olefin epoxidation. method of epoxidising of olefin to olefin oxide comprises the following operations: bringing the load including, at least, oxygen and olefin, in reactor with catalyst including carrier with bimodal pore distribution in sizes, first types of pores with mean diameter of 0.01-5 mcm and second type of pores with mean diameter of pores of 5-50 mcm, catalytically active amount of silver or silver-bearing compound, promoting amount of rhenium or rhenium-bearing compound, and promoting amount of one or more alkaline metals or alkaline metal-bearing compound. Note here that said reactor has, at least, its outlet, while said olefin oxide resulted from aforesaid contact features concentration at reactor outlet of 2.2 vol. % of cesium, lithium and tungsten. It may comprise bringing the load including, at least, oxygen and olefin, in reactor with catalyst including carrier with total volume of pores of 0.41 cm3/g and bimodal pore distribution in sizes, first types of pores making 25% of total volume of pores with mean diameter of 0.7 mcm and second type of pores making 75% of total amount of pores with mean diameter of pores of 15.8 mcm, catalytically active amount of silver or silver-bearing compound, promoting amount of rhenium or rhenium-bearing compound, and promoting amount of one or more alkaline metals or alkaline metal-bearing compound. Note here that said reactor has, at least, its outlet, while said olefin oxide resulted from aforesaid contact features concentration at reactor outlet over about of 2.2 vol. % at 236°C.
EFFECT: higher selectivity and efficiency.
34 cl, 2 tbl, 1 dwg, 2 ex
SUBSTANCE: present invention relates to a method of producing alkylene glycol, which can be used as a raw material in production of polyester fibres, polyethylene terephthalate plastic and resins, as well as in antifreeze liquids. The method involves the following steps: (a) reaction of alkene with oxygen in the presence of a catalyst in a reactor to obtain a gaseous composition which contains alkylene oxide, alkene, oxygen, carbon dioxide and water vapour, and removing contaminants from the gaseous composition; (b) feeding the gaseous composition from step (a) into an alkylene oxide absorber, having a column of vertically stacked plates or having a packed column, feeding the impoverished absorbent into the alkylene oxide absorber, bringing the gaseous composition into contact with the impoverished absorbent in the alkylene oxide absorber in the presence of one or more catalysts which facilitate carboxylation and hydrolysis, and removing the saturated absorbent from the alkylene oxide absorber, where the impoverished absorbent contains at least 20 wt % and less than 80 wt % water, wherein at least 50 wt % alkylene oxide coming into the alkylene oxide absorber is converted in the alkylene oxide absorber and where temperature in the alkylene oxide absorber ranges from 50 to 160°C; (c) optionally feeding a portion or all of the saturated absorbent from step (b) into one or more final treatment reactors and removing the product stream from the one or more final treatment reactors, where at least 90% of alkylene oxide and alkylene carbonate coming into one or more final treatment reactors are converted to alkylene glycol in one or more final treatment reactors; (d) optionally feeding the saturated absorbent from step (b) or the product stream from at least one or more final treatment reactors at step (c) into a flash vessel or into an apparatus for evaporating light fractions, and removing the light fractions; (e) feeding the saturated absorbent from step (b) or (d) or the product stream from step (c) or (d) into a dehydrator, removing water and obtaining a stream of dehydrated product; and (f) purifying the stream of dehydrated product from step (e) and obtaining a product stream of purified alkylene glycol.
EFFECT: method enables to reduce the cost and complexity of the apparatus while ensuring high selectivity.
12 cl, 1 ex, 6 dwg
SUBSTANCE: invention relates to catalyst supports used for epoxidation. Described is an olefin epoxidation catalyst support, wherein said support has pore volume from pores with diameter smaller than 1 mcm of less than 0.20 ml/g and pore volume from pores with diameter greater than 5 mcm of less than 0.2 ml/l, wherein at least 40% of the pore volume consists of pores having diameter from 1 mcm to 5 mcm. Described is an olefin epoxidation catalyst support, having a support and a catalytically effective amount of silver on it, wherein said support has pore volume from pores with diameter smaller than 1 mcm of less than 0.20 ml/g and pore volume from pores with diameter greater than 5 mcm of less than 0.2 ml/l, wherein at least 40% of the pore volume consists of pores having diameter from 1 mcm to 5 mcm. Described is an olefin epoxidation catalyst which has a support and a catalytically effective amount of silver on it, wherein said support has total pore volume of 0.2-0.6 ml/g, surface area from about 0.3 m2/g to about 3 m2/g, at least 40% of the pore volume from pores with diameter ranging from 1 mcm to 5 mcm and average pore diameter from 1 mcm to 5 mcm, an in which pore volume from pores with diameter greater than 5 mcm is less than 0.20 ml/g, and pore volume from pores with diameter smaller than 1 mcm is less than 0.20 ml/g. Described is a method of oxidising ethylene to ethylene oxide, which involves vapour-phase oxidation of ethylene with molecular oxygen in a fixed bet, in a tubular reactor in the presence of the catalyst described above.
EFFECT: high activity, selectivity and stability of the epoxidation catalyst.
19 cl, 4 tbl, 3 ex