Wood-polymer composition for polyvinyl chloride based articles |
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IPC classes for russian patent Wood-polymer composition for polyvinyl chloride based articles (RU 2431648):
 Method and system to catch wood fibre from industrial waste waters in production of fibreboards / 2430886
Invention may be used to extract, recycle and process wood wastes in process of fibreboards production. The method includes supplying waste waters downstream pouring-forming machine into an accumulating-balancing reservoir, its pumping along a bypass pipeline into a disperser with simultaneous air supply from atmosphere into the bypass pipeline, formation of air and water mixture passing through the disperser, supply of air and water mixture into a dynamic absorber to create floating complexes, their supply into a receiving chamber of a flotation plant, separation into foam sent to the pouring-forming machine and treated water supplied to the accumulator. The system for method realisation comprises an accumulating-balancing reservoir for collection of waste waters, a bypass pipeline and a disperser to create air and water mixture, a dynamic absorber to form floating complexes, a floatation plant with a receiving chamber, a foam-producing mechanism and a foam-collecting pocket to separate caught fibre in the form of foam and an accumulator of treated water.
 Method of preparing cellulose-containing polymer super-concentrate and composite materials based on said super-concentrate / 2424263
Method involves plastification with extrusion of dispersion components, and specifically cellulose filler and thermoplastic polymer matrix. The thermoplastic polymer matrix consists of high-density polyethylene, a compatibiliser in form of graft polyolefin and a lubricant. The lubricant used is pre-ozonised polyethylene homologues in form of super-molecular polyethylene, low-density linear polyethylene and ethylene vinylacetate in ratio of 1:3:5. The graft polyolefin used in the compatibiliser is high-density polyethylene to whose molecular structure glycidyl methacrylate is grafted. Use of such a compatibiliser increases energy compatibility of dispersion components used in preparing a cellulose-containing polymer super-concentrate. The composite material contains a polymer and a super-concentrate with 30-70 wt % content of the super-concentrate.
Method of producing new fuel / 2422480
Invention relates to method of fuel production. Fuel is produced in mixing lignin with metallurgy wastes. Note here that lignin moisture content may vary. Chips of steel and foundry iron parts and scale are used as metallurgy wastes. Said mix comprises lignin in amount of 70-90 wt % and scale in amount of 10-30 wt %.
Method of producing nontoxic chipboards / 2422267
Invention relates to woodworking industry. Proposed method comprises preparing wood particles, drying and sorting them, making modifying carbamide-formaldehyde resin-based binder, mixing it with wood particles, producing carpet and moulding plates. Carbamide-formaldehyde resin modifier is made up of PVAC dispersion-based composition with ratio of components in wt % as follows: carbamide-formaldehyde resin - 67-92; PVAC dispersion - 5-20; carbamide - 1-5: plasticiser - 1-5, and curing agent - 1-3.
 Application of fat soft waxes as oil-wetting agents in timber articles, timber articles thus produced, and method of fat soft waxes injection in timber articles / 2420396
Invention relates to using wax water dispersion as oil-wetting agent in producing wood-base materials. Wax dispersion contains soft wax with content of oil exceeding 20% by wt as solid phase or its component. Note here that soft wax is solid at, at least, 10°C and below, and features softening temperature below 65°C, and contains 0.5-10 % by wt of urea per wax dispersion weight. Soft wax-to-urea weight ratio varies from 100:0.3 to 100:6. Wax dispersion is brought in contact with wood chippings or fibers. Invention covers also wood-base material produced in using binders, soft wax and urea, and method of its production.
Lignocellulose material with low content of formaldehyde and preparation method thereof / 2416625
Invention relates to wood material in which a nitrogen-containing compound is distributed, where the said compound forms a cellular structure and is a product of condensation of formaldehyde in form of a cellular structure formed in amount (N) of at least 1 wt % in terms of nitrogen, relative the total weight of the wood material. The coefficient (FA/N) which is expressed as the ratio of extraction of formaldehyde (FA), determined using a method in a closed volume in accordance with EN 717, part 3, to the quantitative content of nitrogen (N) has maximum value of 3.5×10-3, and the hold level of the nitrogen-containing compound is higher than 73%. The method of obtaining the wood material involves a) saturating wood material with an aqueous composition containing i) at east one nitrogen-containing compound which forms a cellular structure and ii) at least one substance which catalyses formation of the cellular structure, b) treating the saturated wood material at high temperature in order to remove water and to form a cellular structure from the nitrogen-containing compound which forms a cellular structure. Step b) of the process involves treatment of the saturated wood material at least once with superheated water vapour, followed by treatment at least once at temperature higher than 110°C and with relative humidity of the gaseous medium surrounding the wood material of not more than 20%. The nitrogen-containing compound which forms the cellular structure is selected from: 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidin-2-one, 1,3-bis(hydroxymethyl)-4,5- dihydroxyimidazolidin-2-one, which is modified by an alkanol with 1-6 carbon atoms, a polyol with 2-6 carbon atoms or oligoalkyleneglycol, 1,3-bis(hydroxymethyl)urea, 1,3-bis(methoxymethyl)urea, 1- hydroxymethyl -3-methylurea, 1- hydroxymethyl-3-methyl-4,5- dihydroxyimidazolidin-2-one, 1- hydroxymethyl -4,5- dihydroxyimidazolidin-2-one, 1,3-bis(hydroxymethyl) imidazolidin-2-one, 1,3-bis(hydroxymethyl)-1,3-hexahydropyrimidin-2-one, 1,3-bis(methoxymethyl)-4,5- dihydroxyimidazolidin-2-one, tetra(hydroxymethyl)acetylenediurea, low-molecular melamine-formaldehyde resins and low-molecular melamine-formaldehyde resins which are modified with alkanol with 1-6 carbon atoms, polyol with 2-6 carbon atoms or oligoalkyleneglycol, mixtures of said compounds with each other, mixtures of said compound with not less than one compound V', which contains at least one free NH- group, and mixtures of said compounds with at least one compound V" which contains at least one hydroxyl group which is not part of the CH2OH group.
 Polymeric composition for moulding biodegradable articles form molten mass / 2408621
Composition contains polyethylene production and/or household wastes, beet pulp and bentonite as a processing additive.
Composition for wood-polymer composite material / 2405010
Invention describes a composition for a wood-polymer composite material containing the following, wt %: furfural-acetone resin 14-20, benzene sulphonic acid 3-5, andesite flour 47-57, technical soot 2.5-5.7, wood chips 16-20, broken glass or loose glass yarn 0.3-0.5, modified low molecular weight styrene-containing copolymer based on still bottoms from distillation of recycled solvent from production of polybutadiene 2.0-6.0 wt % maleic acid 1-5, and polyatomic alcohol 0.3-1.5.
Method of producing plate composite material from lignocelluloses / 2404048
Invention relates to treatment of vegetable lignocelluloses raw material to produce plate construction materials to be used in construction and furniture production. Vegetable lignocelluloses raw material with high content of lignin and hemicelluloses is treated for 15 s - 10 min by water steam at not over 1 MPa and 150-250°C. Treatment by water steam is instantly terminated. Said vegetable lignocelluloses raw material thus treated is mixed with untreated fibrous vegetable lignocelluloses raw material. Content of vegetable lignocelluloses raw material treated by water steam in produced mix makes 2-60 wt %. Produced mix is formed into mats. Water is extracted from said mats. Vegetable lignocelluloses raw material treated by water steam can be dried to moisture content of 5-10%. Resultant matter is mixed with untreated vegetable lignocelluloses raw material. Mats are produced from obtained mix and subjected to hot pressing. To produced solid plate material.
 Structural plate material made from cellulose-containing particles impregnated with glue / 2398676
Invention relates to production of plate materials based on cellulose-containing particles impregnated with glue base on carbamide-formaldehyde resin to be used woodworking industry. Cellulose-containing particles are mixed with glue based on carbamide-formaldehyde resin and acid solidifier. Said cellulose-containing particles represent flax boon. Note here that said glue comprises additionally modifier butanol-1 in amount of 1.4…1.6% of carbamide-formaldehyde resin weight.
Pvc-based plasticised compositions / 2431647
Stable plasticised composition contains C4-C30-alkyl-pyrrolidone with a straight, branched or cyclic alkyl radical in amount ranging from more than 10 phr to 400 phr (parts per 100 parts of PVC), sufficient for plasticising said PVC to a flexible state. The PVC product is characterised by Shore hardness (scale A) less than 100 and is in form of calendered sheet, plastisol, foam, dispersion, film, siding, tube or pipe.
 Polyvinyl chloride composition for producing film materials / 2429255
Polyvinyl chloride composition for producing film materials contains suspended polyvinyl chloride, a mixture of plasticisers di-(2-ethylhexyl)phthalate, di-(2-ethylhexyl) sebacate, a complex metal-containing stabiliser - complex Ba-Zn stabiliser, filler - chalk, titanium dioxide, cellulose, lubricant - calcium stearate, pigments, polymer modifier - copolymer of vinyl chloride and vinyl acetate (VA-5) and a mixture of an oligomeric plasticiser based on a mixture of adipic or phthalic esters, n-butyl alcohol, 2-ethylhexanol and polypropylene glycol - component A with a surfactant which contains oxyethylated monoalkylphenol based on trimers of propylene - component B in ratio A:B equal to (11.5-18.23):1.
 Polymer composition / 2425072
Polymer composition contains suspended polyvinyl chloride or suspended polyvinyl chloride C-01 wastes, ester plasticiser dioctylphthalate or butylbenzylphthalate, tribasic lead sulphate, calcium stearate, stearic acid, chalk, soot, hexachlorobenzene, obtained from perchloroethylene production wastes, and if needed, chlorinated C14-C32 hydrocarbon fractions containing 45-52% chlorine and diphenylol propane.
 Method of producing highly filled polyvinyl chloride-based plastisol / 2412962
Invention relates to processing polyvinyl chloride through dispersion, particularly to production of highly filled adhesive plastisols used in making protective coatings in motor-car construction, as anticorrosion protection of inner surfaces of metal structures. The method of producing highly filled plastisol based on polyvinyl chloride involves successive addition and mixture in a mixer of di(2-ethylhexyl)phthalate, triethylene glycol dimethacrylate, isopropylbenzene hydroperoxide, half of the given amount of kaolin, calcium strearate, polyvinyl chloride and the remaining amount of kaolin. Aliphatic silicon acrylate, diatomite and NGZ-4 phosphate hydraulic fluid are added before adding polyvinyl chloride, and after adding the remaining amount of kaolin, a polysulphide oligomer - liquid thiocol II with weight ratio of SH groups of 1.7-2.6% and molecular weight of 2100 is added.
 Method of producing highly filled polyvinyl chloride-based plastisol / 2412961
Invention relates to processing polyvinyl chloride through dispersion, particularly to production of highly filled adhesive plastisols used in making protective coatings in motor-car construction, as anticorrosion protection of inner surfaces of metal structures. The method of producing highly filled plastisol based on polyvinyl chloride involves successive addition and mixture in a mixer of di(2-ethylhexyl)phthalate, triethylene glycol dimethacrylate, isopropylbenzene hydroperoxide, half of the given amount of kaolin, calcium strearate, polyvinyl chloride and the remaining amount of kaolin. Hexafunctional oligourethane acrylate, diatomite and NGZ-4 phosphate hydraulic fluid are added before adding polyvinyl chloride, and after adding the remaining amount of kaolin, a polysulphide oligomer - liquid thiocol II with weight ratio of SH groups of 1.7-2.6% and molecular weight of 2100 is added.
 Method of producing highly filled polyvinyl chloride-based plastisol / 2412960
Invention relates to processing polyvinyl chloride through dispersion, particularly to production of highly filled adhesive plastisols used in making protective coatings in motor-car construction, as anticorrosion protection of inner surfaces of metal structures. The method of producing highly filled plastisol based on polyvinyl chloride involves successive addition and mixture in a mixer of di(2-ethylhexyl)phthalate, isopropylbenzene hydroperoxide, half of the given amount of kaolin, calcium strearate, polyvinyl chloride and the remaining amount of kaolin. Hexafunctional oligourethane acrylate, diatomite and NGZ-4 phosphate hydraulic fluid are added before adding polyvinyl chloride, and after adding the remaining amount of kaolin, a polysulphide oligomer - liquid thiocol II with weight ratio of SH groups of 1.7-2.6% and molecular weight of 2100 is added.
 Method of producing fire-resistant polyvinylchloride materials / 2411265
Invention relates to production of fire-resistant plasticised polyvinylchloride materials and can be used in production of fire-proof polymer materials and coatings. In the method of producing fire-resistant polyvinylchloride materials, the plasticiser-antipyrenes used are bis-(2-dialkoxyphosphorylethyl)benzenes which contain four ether groups and two complete (secondary) phosphate groups.
Polymer-rubber composition for making rail and sleeper pads for damping rail braces / 2407761
Rubber composition contains the following in pts. wt: synthetic nitrile rubber SKN-26 or SKN-26 ASM 100, suphur 0.5-2.5; an acceleration group: thiuram D 0.5-2.5, N,N'-dithiomorpholine 2-4, vulcanisation activator: zinc oxide 1.5-5.0; filler: technical carbon P-514 15-30, technical carbon T 900 55-75, white soot BS-100 5-20, plasticiser: dibutyl sebacate 5-15, polyvinyl chloride EP-6602s 10-25, diaphene FP 1-3, stearic acid 0.5-2.5.
Increasing weather resistance of polymer materials or enhancement of polymer materials with respect to weather resistance / 2404212
Polymer material contains acrylic polymer, chlorine-containing polymer and inorganic hydroxide. The acrylic polymer is selected from a homopolymer of alkyl(alc)acrylate or copolymer of alkylmethacrylate and alkylacrylate. The chlorine-containing polymer contains 5-70 wt % halogen. The inorganic hydroxide is selected from magnesium hydroxide, zinc hydroxide or mixtures thereof, except a mixture of magnesium hydroxide and zinc oxide or magnesium hydroxide and zinc stannate. Weight ratio between the chlorine-containing polymer and the acrylic polymer is at least 0.3. Polymer material is obtained by mixing the chlorine-containing polymer and inorganic hydroxide in molten acrylic polymer. The polymer material is used to make articles and structural elements in construction.
 Method of producing highly-filled polyvinyl chloride-based plastisol / 2404210
Polyvinyl chloride plastisol has the following composition, pts. wt: polyvinyl chloride 100; di(2-ethylhexyl)phthalate 80-100; triethylene glycol dimethacrylate 40-60; isopropylbenzene hydroperoxide 0.4-1.2; kaolin 160-180; calcium stearate 3-6; polysulphide oligomer 1.5-2.5; diatomite 3-5, NGZ-4 phosphate hydraulic fluid 2-7. The method is characterised by successively feeding and mixing components, with kaolin being added in two steps.
Composite material for shielding electromagnetic emission and a method for manufacture thereof / 2243980
Invention discloses a method for manufacturing composite material for shielding-mediated protection against electromagnetic emission and can be used in electronics, in radio engineering, and also in a series of special-destination articles. In addition, material may be used for anechoic boxes and in various assemblies of technical devices and radio apparatuses. Method comprises mixing modified graphite-containing conducting filler and polymeric binder at weight ratio (50-80):(20-50). Once ingredients combined, mixture is additionally subjected to thermal expansion in thermal shock mode at 250-310оС and then molded. Polymeric binder is selected from polyolefins, polystyrene, fluoroplastic, polyvinylchloride paste and modified graphite is product obtained by modifying graphite with concentrated sulfuric and nitric acids. Material is characterized by that, in wavelength band from 2 to 5 cm at thickness of material up to 0.1 mm, transmission coefficient is decreased from -40 to -85 dB.
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FIELD: chemistry. SUBSTANCE: wood-polymer composition for articles contains polyvinyl chloride, wood flour, calcium-zinc complex stabiliser and the composition can additionally contain a metal-containing lubricant obtained via reaction of higher monocarboxylic acids with glycerine at 130-230°C in molar ratio 1:(1-2) in the presence of oxides of divalent metals Ca, Zn, Mg or other two-component mixtures in weight ratio 0.25-1.0:0.5-1.0 and polyethylene wax. EFFECT: high quality of ready articles owing to improved technological parameters of the compositions, thermal stability, melt fluidity, water absorption and environmental safety. 2 cl, 1 tbl
The invention relates to the field of composition and technology of wood-polymer compositions and can be used in the building materials industry, furniture industry, mechanical engineering and other industries. Known wood-plastic composition comprising tabactivity dispersed woody vegetation filler with residual specific charge 510-7-510-5 Cells/kg and the value of the relaxation time remaining specific charge of 0.05-1 CL/s, a thermoplastic polymer binder, of a dispersed inorganic material with a major surface properties and particle size of not more than 20 μm as inorganic additives and conventional additives target in the following ratio, wt.%:
[RF patent №2081135, CL C08L 97/02, 1995]. The disadvantage of this composition are low physico-fur the practical properties of materials, the complexity of technology for wood-polymer compositions. Closest to the claimed composition in essential traits is a wood-plastic composition comprising polyvinyl chloride, wood filler, stearate divalent metal, isobutyl alcohol, urea and polyvinyl butyral in the following ratio, wt.%:
[RF patent №1224319, CL C08L 27/06, 1986]. The disadvantages of the composition include low rates of thermal stability and melt flow, low resistance, which is due to insufficiently strong bonding interaction between wood flour and PVC. The objective of the invention is to improve the technological performance of wood-polymer compositions, namely components is innosti, melt flow, water absorption, and, in addition, ensuring environmental safety. The technical result in the use of the invention lies in achievement of high quality finished products on the basis of the inventive polymer composition. The above technical result is achieved by the fact that in wood-polymer compositions based on polyvinyl chloride and wood flour use complex calcium-zinc non-toxic stabilizer, and the composition may further contain a metal-containing lubricant and a polyethylene wax in the following ratio of components, parts by weight:
In the polymer composition is used: - PVC suspension brand-5868 mud, M according to GOST 14332-U, PVC-G on THE 2212-241-00203312-2004, PVC-G on THE 2212-235-00203312-2003, PVC-R, PVC-U on THE 2212-186-02203312-98; wood flour. In the examples of implementation of izobreteny the authors use wood flour according to GOST 16361. However, the composition can be used any other wood flour, providing the same level of quality polymeric composition; - polyethylene wax with a melting point not higher than 100°C; - metal-containing lubricant obtained by the interaction of higher monocarboxylic acids with glycerol at 130-230°C at a molar ratio of 1:(1-2) in the presence of oxides of divalent metals Ca, Zn, Mg or a two-component mixtures in a weight ratio of 0.25 to 1:0.5 to 1 in the amount of 0.5-2.0 wt.% of the total reaction mass, where as higher monocarboxylic acids use: higher isomeric acids (VIC), oleic acid, stearic acid [RF Patent №2348664, CL C08L 27/06, 2009, patent RF №2260020, CL C08L 27/06, 2005]. As the stabilizer composition comprises a non-toxic complex calcium-zinc stabilizers brands: BAEROPAN R 9003 (producer - "Baerlocher GmbH, Germany), Naftosafe RNH 922 (producer - "Kimson", Austria), designed for the extrusion of technical profiles of wood-polymer compositions. The invention is illustrated by the following examples. Example 1. Preparation of wood-polymer composition is carried out in a two-stage mixer. In a tank of hot mixing load 50 kg PVC-5868 mud, 4 kg of stabilizer BAEROPAN R 9003, 0.2 kg of polyethylene wax, add 50 kg of wood flour and mix p and heated to a temperature of 120°C. Then the composition is discharged into a tank of cold mixing and cooling the composition under continuous stirring to a temperature of 30-70°C. After mixing and cooling the polymer composition fed to the extruder for pelletization. From the obtained composition is prepared samples for testing by the method of rolling. The temperature of the rolling 170±5°C time rolling 5-8 minutes The melt flow index (MFR) determined according to GOST 11645-73. thermal stability of the sample is determined according to GOST 14041-91 at a temperature of 180°C. the Water absorption is determined according to GOST 19111-77. Examples of implementation of the invention are shown in table 1, indicating the component, the quantitative composition of the polymer composition, the test results of samples on technological parameters. Examples 1-19 - invention No. 20 - the prototype. The use of components in the claimed amounts improve operational and technological parameters, namely: the melt flow index, thermostability. In addition, the use in the composition of wood-polymer compositions are non-toxic stabilizers ensures ecological safety of the finished products, expands the boundaries of the spheres of their use and increases the competitiveness of products.
1. Wood-polymer composition for products based on p is of livinallongo, includes wood filler and stabilizer, characterized in that as the wood filler composition contains wood flour, the stabilizer is used as the complex calcium-zinc stabilizer and the composition may further comprise a polyethylene wax and a metal-containing lubricant obtained by the interaction of higher monocarboxylic acids with glycerol at 130-230°C at a molar ratio of 1:(1-2) in the presence of oxides of divalent metals (CA, Zn, Mg or a two-component mixtures in a weight ratio of 0.25 to 1.0:0.5 to 1.0 in the following ratio of components, parts by weight:
2. Wood-polymer composition according to claim 1, characterized in that the composition is used a polyethylene wax with a melting point not higher than 100°C.
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