3341 results about "Chloride vinyl" patented technology

A process is provided for the production of 1,1,1,3,3-pentachloropropane. The process comprises: (a) producing a product mixture in a reactor by reacting carbon tetrachloride and vinyl chloride in the presence of a catalyst mixture comprising organophosphate solvent, iron metal and ferric chloride under conditions sufficient to produce 1,1,1,3,3-pentachloropropane; (b) subjecting the 1,1,1,3,3-pentachloropropane containing product mixture from step (a) to evaporation such that a fraction enriched in 1,1,1,3,3-pentachloropropane is separated from the product mixture and a bottoms fraction results which comprises the iron metal/ferric chloride catalyst components and heavy end by-products; and (c) recycling at least a portion of the bottoms fraction from step (b) to the reactor.

An integral gasketed filtration cassette structure of a type comprising a filtration cassette fully or partially overcoated by a gasket layer, forming a fluid-tight seal between the filtration cassette and the filtration cassette holder to which the filtration cassette is to be affixed. The filtration cassette comprises filter sheets arranged in a multilaminate, peripherally bonded array, wherein the filter sheets alternate with permeate and retentate sheets. The gasket layer comprises an elastomeric material with suitable hardness and temperature resistance for sealing, such as silicone, ethylenepropylenedienemonomer (EPDM), viton, polyurethane, polypropylene, polyethylene, polyvinylchloride, polyester, epoxy, ethylvinylacetate, bunnas, and styrene butadiene. The filtration cassettes and filter of the invention may be advantageously employed for dewatering of aqueous biomass suspensions, desalting of proteins, removal of secreted metabolites from cellular suspensions, and the like.

This invention provides an electrically conductive ink comprising an electrically conductive material and a vinyl chloride/vinyl acetate/hydroxyalkyl (meth)acrylate copolymer resin. There is also provided a noncontact-type medium comprising a base material and, provided on the base material, an electrically conductive circuit formed using the electrically conductive ink, and an IC chip mounted in the state of being electrically conducted to the electrically conductive circuit. An electrically conductive circuit, which is in a thin film form, can be used as an antenna circuit for noncontact-type media, has a low volume resistivity on the order of 10⁻⁵ Ω·cm, and is highly reliable under a high temperature and high humidity environment, can be formed by using the electrically conductive ink at a low temperature in a short time.

A magnetic recording medium, which comprises: a backcoat layer; a nonmagnetic support; a nonmagnetic layer; and a magnetic layer, in this order, wherein the backcoat layer has Tg of from 65 to 95° C., and the binder constituting the backcoat layer satisfies the following requirements: (1) the binder comprises a vinyl chloride-based resin (PVC) and a polyurethane resin (PU); (2) PVC has a solubility parameter of from 9 to 11 (cal·cm³)^1/2, Tg of from 65 to 95° C. and Mw of from 5000 to 25000; (3) a ratio of PVC to the total mass of PVC and PU is from 10 to 60% by mass; (4) PU has a solubility parameter of from 9.5 to 11.5 (cal·cm⁻³)^1/2, Tg of from 80 to 110° C. and Mw of from 20000 to 60000; and (5) a ratio of PU to the total mass of PVC and PU is from 90 to 30% by mass.

The invention relates to a novel wood plastic composite decorative building material and a manufacturing method thereof. The novel wood plastic composite decorative building material comprises the following components in part by weight: 100 parts of polyvinyl chloride (PVC) resin powder, 30 parts of mixture formed by mixing one or more of wood powder, bamboo powder, rice bran powder and crop straw powder in an arbitrary ratio, 30 parts of calcium powder, 5 to 10 parts of chlorinated polyethylene or MBS resin, 2 to 6 parts of rear earth compound stabilizer, 0.5 to 3 parts of polyethylene wax or oxidized polyethlene wax, 0.5 to 3 parts of stearic acid, 0.5 to 2.0 parts of foaming agent, 5 to 10 parts of blowing promoter, 0.5 to 1 part of antioxidant, 0.5 to 1 part of reinforcing agent, 1 to 3 parts of toner and 0.5 to 1 part of weather resistant agent. PVC plastic is modified by adding the auxiliaries, and the influence of unstable components (such as a vinyl chloride monomer, hydrogen chloride gas and the like) in the PVC on the performance of the building material is eliminated, so that the building material has better performance and environmental protection characteristics on the basis of keeping the original performance.

The invention relates to a chlorinated polrvinyl chloride modified material as well as a preparation method and application thereof. The raw material formula of the chlorinated polrvinyl chloride modified material comprises the following components in parts by weight: 40-90 parts of chlorinated polrvinyl chloride, 20-70 parts of polrvinyl chloride, 5-30 parts of modified resin, 1.5-10 parts of heat stabilizing agent, 20-60 parts of plasticizer, 1-10 parts of antioxidant, 1-10 parts of lubricating agent, 5-40 parts of filling agent, 8-40 parts of fire retardant, 8-40 parts of flame retardant synergist and 1-20 parts of polrvinyl chloride processing aid. Compared with the known CPVC (chlorinated polrvinyl chloride) modified plastic, the CPVC modified plastic disclosed by the invention is more excellent in physical and mechanical properties and is relatively reduced in cost; and compared with the known CPVC modified plastic, the CPVC modified material disclosed by the invention is obviously improved in heat resistance and flame retardant property (oxygen index can reach about 45%, and simple root of CPVC modified material can be vertically burnt) besides more excellent processabilityand obviously improved material brittleness and shock resistance. Thus, the CPVC modified material disclosed by the invention is suitable for being used as a wire and cable sheath material.

The invention generally is related to preventing or inhibiting microbial infections on live tissues or in relation to the use of medical articles. In one embodiment, the invention is directed to a method for forming an antimicrobial coating on live tissue or a medical article, such as, for example, a catheter. The method includes applying to a live tissue or a surface of a medical article an aqueous or non-aqueous composition that includes at least one silane of the general formula R¹_nSi(OR²)_4-n wherein, n is an interger of 1 or 2, R¹ generally is a lower alkyl group, a C₆-C₈ aryl group, or a functional group, such as vinyl, acrylic, amino, mercapto, or vinyl chloride functional group, and R² generally is a lower alkyl group. A partial condensate of a silanol of the formula R¹Si(OH)₃ also can be used. The composition includes one or more additional ingredients. The method also includes reacting and/or curing the silane, in the presence of the one or more ingredients, thereby forming the antimicrobial coating.

The invention discloses a non-mercury catalyst used in the acetylene hydrochlorination and preparation method thereof. The method includes the following steps: (1) dissolving noble metal chloride 0.5-3 parts by weight and base metal chloride 1-10 parts by weight into 2-4 mol/L hydrochloric acid solution to obtain a 0.01-0.05mol/L noble metal chloride solution; (2) adding the activated carbon 100 parts by weight into the solution at room temperature for 5-12 hours; (3) evaporating the immersion liquid on the activated carbon at 80-100 DEG C, drying at 70-80 DEG C for 2-4 hours and calcining at 120-140 DEG C for 4-12 hours; (4) and activating in hydrogen chloride atmosphere for 0.5-3 hours. The inventive catalyst can be used for green synthesis of vinyl chloride monomer to reach a conversion rate of acetylene up to 95-98% and selectivity of vinyl chloride greater than 99%.

To provide a novel cross copolymer and resin composition which are improved in heat resistance and compatibility over conventional ethylene/aromatic vinyl compound copolymers and which have low crystallinity, are excellent in softness, transparency and compatibility and show mechanical properties similar to soft vinyl chloride resins, as compared with conventional cross copolymers.

A process for producing a cross copolymer, which comprises a coordination polymerization step and a subsequent anionic polymerization step, wherein in the coordination polymerization step, copolymerization of an olefin monomer, an aromatic vinyl compound monomer and an aromatic polyene is carried out by using a single-site coordination polymerization catalyst to synthesize an olefin/aromatic vinyl compound/aromatic polyene copolymer, and then, in the anionic polymerization step, polymerization is carried out in the coexistence of such an olefin/aromatic vinyl compound/aromatic polyene copolymer and an anionic polymerizable vinyl compound monomer by using an anionic polymerization initiator.

Multilayer laminated shrink films that have good interlayer adhesion comprise at least three layers, a first layer comprising a polymer selected from the group consisting of polyamides, ethylene vinyl alcohol copolymers and mixtures thereof, a second adhesive layer consisting essentially of a blend of a functionalized polymer component, an ethylene copolymer component and a tackifier and a third layer comprising a polymer selected from the group consisting of polyethylene homopolymers, ethylene copolymers, polypropylene homopolymers, propylene copolymers, polyesters, polyamides, polyvinyl chloride, polycarbonates, and mixtures thereof The adhesive layer is positioned between and contacts the first and third layers.

The invention discloses a catalyst system for preparing vinyl chloride by hydrochlorinating acetylene, and preparation and application thereof. The catalyst system comprises a catalyst carrier and a catalyst, wherein the catalyst carrier is pyridine ionic liquid, and the catalyst is one or any combination of more than two of tin, palladium, gold, copper, manganese, bismuth, mercury and rhodium. The preparation method for the catalyst system comprises a step of dissolving the catalyst in the catalyst carrier. Acetylene gas and hydrogen chloride gas are mixed and then reacted in the presence of the catalyst system. The preparation process realizes a liquid phase reaction for preparing the vinyl chloride by hydrochlorinating the acetylene, avoids the loss of the catalyst system, is more environment-friendly and safer, and improves the conversion rate of the acetylene and the selectivity of the vinyl chloride.

The invention discloses a conductive coating and the preparation method thereof and a method for forming film on material surface. The preparation method comprises the following steps: wetting and dispersing metal powder; uniformly mixing film-forming resin, chloride-vinyl acetate resin and conductive coating additive, adding diluting agent, stirring at high speed, dispersing to form a conductive paint base material, adding into the wetted and dispersed metal powder, and uniformly stirring; and sieving, removing impurities to obtain conductive coating, adding curing agent, and spraying or applying on material. The conductive coating has the advantages of smooth surface and high adhesion of film-forming substance, and good conductivity, and can be adhered on the surface of any materials.

The invention discloses a novel environment-friendly type PVC heat stabilizer comprising 1,3-dimethyl-6-Aminouracil as a main stabilizing agent. The novel environment-friendly type PVC heat stabilizer comprises the following ingredients: 1-5weight parts of 1,3-dimethyl-6-Aminouracil, 10-100 weight parts of epoxy soybean oil, 3-10 weight parts of calcium stearate, 3-10 weight parts of zine stearate, and 2-15 weight parts of organic auxiliary agent. According to the invention, the heat stabilizer disclosed herein significantly raises the stability of PVC materials in the processing process; and compared with traditional stabilizing agents, the heat stabilizer disclosed herein contains no heavy metal, and is an environment-friendly efficient novel heat stabilizer.

The invention discloses an ultralow temperature polyvinyl chloride (PVC) modified insulating sheath cable material, belonging to the field of materials. The cable material is mainly prepared from the following raw materials in percentage by weight: 45-50% of PVC resin, 15-20% of plasticizer, 20-25% of filler, 1-3% of electrical property modifier, 9-15% of impact resistant and high and low temperature resistant modifier, 0.4-2.2% of lubricant, 1.0-2.0% of stabilizer and 0.1-0.3% of antioxidant, wherein the plasticizer is a mixture of more than two of phthalate, terephthalate or trimellitate; and the lubricant is a mixture of a composite lubricant and oxidized polyethylene wax. The invention also provides a preparation method of the cable material. The cable material provided by the invention has the advantages of low brittle temperature and good insulating property, wherein the brittle temperature can reach -35 DEG C; and simultaneously, the preparation method of the cable material is simple and is convenient for industrialized production.

A process for preparing hydrofluoroether features the reaction between one of trifluoroethene, tetrafluoroethene, hexafluoro propene, etc and one of trifluoroethanol, trifluoropropanol, metanol, etc in organic solvent (DMF or DMSO). Its advantages are high output rate and easy purifying and separating.

The invention relates to a single-coated transfer aluminium-plated coating, a preparation method and an application thereof, wherein, the coating takes the following components with the contents (weight percent) as raw materials: 0 to 16 weight percent cellulose resin; 0 to 6 weight percent vinyl chloride-vinyl acetate resin; 4 to 20 weight percent polyacrylate resin; 0 to 1 weight percent auxiliary agent and 70 to 87 weight percent solvent. Compared with the prior art, the invention has the following advantages: (1) the single-channel coating is adopted, compared with two times of coating, the process is simple, the production efficiency is high, the energy consumption is less, the emission is less, the coating amount is less and the cost is low; (2) the product has good technological adaptability and is applicable to the different technological conditions of different manufacturers; (3) a coating layer has excellent comprehensive performance, great peeling performance, good adhesion with aluminium, wear resistance, temperature resistance, solvent resistance, good flexibility, high surface luminance brightness and good adaptability with ink printing; and (4) the coating and the coating layer have no triphenyl or other solvents which are prohibited by the industry, thereby being safe and environment-friendly.

The present invention discloses one kind of multilayer high blocking film for packing liquid material, the multilayer high blocking film includes polyethylene-based heat sealing layer(s), blocking polymer layer(s) preferably of ethylene-vinyl alcohol copolymer, PVA or polyvinylidene dichloride; and protecting layer(s) of polypropylene, polyester, etc. It has the total thickness below 80 micron, preferably of 55-65 micron. The present invention discloses also the making process of the multilayer high blocking film.

The present invention provides a stainproofing agent having the durability capable of maintaining sufficient water- and oil-repellency as well as stainproofing properties before and after cleaning. Disclosed is a stainproofing agent containing (A) a fluroalkyl group-containg copolymer having (I) a structure unit derived from a monomer having a fluoroalkyl group, (II) a structure unit derived from a monomer containing no fluorine, (III) a structure unit derived from vinyl chloride, and (IV) a structure unit derived from a crosslinking monomer; (B) a urethane compound having a fluoroalkyl group, or a copolymer having (V) a structure unit derived from a monomer having a fluoroalkyl group and a carbon-carbon double bond, and (VI) a structure unit derived from a monomer which contains no fluorine atom and has at least one urethane or urea linkage and one carbon-carbon double bond; and (C) an acrylic copolymer containing no fluorine.

The invention discloses a plastic paint with simulated electroplating effect. The composition and the weight ratio of the invention are as follows: 30 to 45 of acrylic resin with 50 percent of solid content and 70 to 90 DEG C of Tg, 20 to 30 of cellulose acetate butyrate with 20 percent of solid content, 8 to 12 of triad copolymer vinyl chloride-acetate resin with 30 percent of solid content, 6 to 10 of non-floating aluminum and silver pulp with an average diameter less than or equal to 20 Mum, 0.3 to 0.5 of dispersant, 0.2 to 0.4 of flatting agent, 0.4 to 0.6 anti-settling agent, 6.0 to 10.0 of toluene, 3.5 to 6.0 of ethyl acetate, 3.5 to 6.0 methy isobutyl ketone, 3.0 to 5.0 of isobutanol and 4.0 to 7.0 of glycol butyl ether. The special diluent of the invention, according to the weight ratio, is made from the following components evenly mixed: 20 of white gas, 10 of toluene, 22 of ethyl acetate, 15 of acetone, 25 of isobutanol and 8 of glycol butyl ether. The main paint which comprises the composition and the diluent are evenly mixed according to the ratio of 1: 2-3, then the mixture is used for spray coating; the metallic appearance of the paint film obtained is very close to the effect of the electroplating, and the paint film has good alcohol resistance with high hardness and strong wear resistance, and also has simple process. The aluminum and silver pulp used is a common type, the cost of which is only 5 percent to 10 percent of the simulated electroplating aluminum and silver pulp and about 2 percent of electrosilvering.

The invention relates to improved crosslinked polyvinyl chloride structural foam and a preparation method thereof. The foam is prepared from the following materials in portion by weight: 100 portions of polyvinyl chloride resin, 30 to 120 portions of isocyanate, 0.05 to 10 portions of epoxy components, 1 to 12 portions of foaming agent, 0.5 to 10 portions of triazine compound, and 1 to 30 portions of acid anhydride. The preparation method thereof comprises the following steps: (1) mixing the raw materials evenly to obtain a pasty mixture; (2) pouring the pasty mixture obtained in step (1) into a die, and fully decomposing the foaming agent to obtain a semi-foaming die pressing block; (3) cooling the semi-foaming die pressing block to room temperature; (4) placing the semi-foaming die pressing block obtained in step (3) into hot bath or steam to carry out swelling; and (5) cooling a swelled semi-finished product obtained in step (4) to room temperature, and then adopting hot water spray or curing post treatment in the steam to fully react the isocyanate so as to obtain cured block or plate crosslinked polyvinyl chloride structural foam. The foam has fine and even holes, and has good mechanical property and temperature resistance.

The disclosure provides a cross-linkable polymer composition, a core layer for an information carrying card comprising such cross-linked composition, resulting information carrying card, and methods of making the same. A crosslinkable polymer composition comprises a curable base polymer resin in a liquid or paste form, and a particulate thermoplastic filler. The base polymer resin is selected from the group consisting of urethane acrylate, silicone acrylate, epoxy acrylate, urethane, acrylate, silicone and epoxy. The particulate thermoplastic filler may be polyolefin, polyvinyl chloride (PVC), a copolymer of vinyl chloride and at least another monomer, or a polyester such as polyethylene terephthalate (PET), a compound or blend thereof.

The invention relates to a preparation method and application of an acrylate wood-plastic composite compatibilization modifier. According to the method and the application, alkene monomers of polyacrylate, vinyl acetate, maleic anhydride or the like are subjected to free radical polymerization under the action of a persulfate or azoamidine initiator by using an emulsion polymerization method so as to obtain an acrylate copolymer emulsion, an organosilane coupling agent, a titanate coupling agent, a lubricant, an anti-aging agent and the like are compounded in the emulsion so as to obtain the wood-plastic composite compatibilization modifier, and a wood-plastic composite material is prepared through uniformly mixing the emulsion with wood flour or plant stalk powder, drying a mixture after full infiltration, mixing the mixture with plastics, such as polyethylene, polypropylene, polyvinyl chloride or polystyrene, and carrying out blending and extruding or compression molding. The usage amount of the composite compatibilization modifier is small, the infiltration with the wood flour is uniform, and the matrix compatibility is high; the prepared composite material is smooth and beautiful in surface and strong in internal interface interphase toughness; and the prepared wood-plastic composite material has the advantages of low cost, high aging resistance and high impact resistance and tensile strength.

The invention provides a corrosion-resistant polymer waterproof mortar, which comprises the following components by weight: 40-50 parts of portland cement, 2-3 parts of polymethyl acrylate latex powder, 2-3 parts of ethylene-vinyl acetate latex powder, 1-2 parts of vinyl chloride-vinylidene chloride copolymerized latex powder, 1-2 parts of polyacrylate latex powder, 3-5 parts of polypropylene fibers, 3-5 parts of cellulose ether, 3-7 parts of inorganic fibers, 6-12 parts of plant fibers, 3-5 parts of cellulose sulfate, 2-4 parts of cellulose phosphate, 1-2 parts of phenyl salicylate, 1-3 parts of polyimide particles, 5-8 parts of quartz sand, 10-15 parts of gypsum, 5-9 parts of fly ash, 4-7 parts of bentonite, 3-6 parts of molybdenum trioxide, 2-5 parts of silicon oxide, 1-2 parts of citric acid, 5-8 parts of calcium nitrate, 5-8 parts of diatomite, 2-8 parts of polyvinyl alcohol, 3-6 parts of dried alum, 1-2 parts of a surfactant, and 20-30 parts of water.