21630 results about "Polyvinyl chloride" patented technology

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.

The invention relates to a composition comprising a thermoplastic polymer and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet to manufacture structural members. The polymer, the fiber or both can be modified to increase compatibility. The wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process. The linear extrudate or pellet can have a cross-section of any arbitrary shape, or can be a regular geometric. The pellet can have a cross-section shape having a volume of at least about 12 mm3. Preferably the pellet is a right cylindrical pellet having a minimum radius of about 1.5 mm and a minimum length of 1 mm weighing at least 14 mg. The invention also relates to an environmentally sensitive recycle of waste streams. The polymer and wood fiber composite contains an intentional recycle of a waste stream comprising polymer flakes or particles or wood fiber. The waste stream can comprises, in addition to polymer such as polyvinyl chloride or wood fiber, adhesive, paint, preservative, or other chemical stream common in the wood-window or door manufacturing process, or mixtures thereof. The initial mixing step before extrusion of the composite material insures substantial mixing and melt contact between molten polymer and wood fiber. The extruded pellet comprises a consistent proportion of polymer, wood fiber and water. During the extrusion, water is removed intentionally to dry the material to a maximum water content of less than about 10 wt-% based on the pellet weight. To make a structural unit, the pellet is introduced into an extruder or injection molding apparatus wherein, under conditions of temperature and pressure, the composite pellet material is shaped into a useful cross-section. Alternatively, the extruded thermoplastic mass, in the form of a elongated linear extrudate without a pelletizing step, can be immediately directed after formation into an extruder or injection molding apparatus.

A flame retardant smoke resistant wood plastic composite material relates to a wood plastic composite material, which solves the disadvantages of low flame retardant performance, big smoke mass, large addition of flame retardants, increased cost and decreased mechanical property of existing wood plastic composite materials. The product of the invention is mainly formed by polystyrene and/or polyvinyl chloride fortified with heat stabilizers, lignocellulose, intumescent flame retardant, compatibilizer, lubricant. The flame retardant and smoke-resistant performance of the product of the invention is greatly improved. For wood powder/ polystyrene composite material, compared with no addition of flame retardant, the average heat release rate is decreased by 48 percent, the quantity of smoke yield is reduced by 30 percent and the CO yield is decreased by 28 percent during combustion. The product of the invention has high oxygen-index, long ignition time and no droplet, which greatly reduces the fire hazard of the material, and the appearance of the material is similar with wood. The product of the invention also has low cost, wide application range and good creep resistance, forming performance and mechanical property.

A vinyl floor panel for a flooring system prepared from a blend of a polymer and cork granules. The floor panel includes top and bottom surfaces with a first layer between both surfaces. A printed pattern is located on the top surface. The first layer is prepared from a blend of a polymer polyvinyl chloride and cork granules, where the cork granules are evenly distributed with the polyvinyl chloride throughout the length, width, and thickness of the first layer.

The invention relates to a piece of inflaming retarding soft polyvinyl chloride plastic used in electric wires and cables, which belongs to sheath and insulation materials used in electric wires and cables in industrial polymer materials and is composed of the raw materials with the following proportion by weight: 25 to 70 parts by weight of polyvinyl chloride resin 100 plasticizer; 5 to 40 parts by weight of co-polymerization resin, 3 to 12 parts by weight of stabilizing agent; 5 to 20 parts by weight of flame retardant I; 5 to 25 parts by weight of flame retardant II; 30 to 130 parts by weight of flame retardant III; 0 to 40 parts by weight of loading agent and 0.5 to 5 parts by weight of lubricant. The inflaming retarding soft polyvinyl chloride plastic used in electric wires and cables provided by the invention has very good inflaming retarding performance with the oxygen index as high as more than 46 and can meet the requirements of using the electric wires and cables with special inflaming retarding requirements as the sheath and insulation materials; the inflaming retarding soft polyvinyl chloride plastic not only has very good inflaming retarding performance but also has favorable low temperature resistant and embrittlement resistant performances and very good soft performance and processing performance.

The invention relates to insulation materials and sheathing materials, and in particular relates to a wear-resisting flame-retardant polyvinyl chloride insulation and sheathing material. The wear-resisting flame-retardant polyvinyl chloride insulation and sheathing material comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 40 to 60 parts of plasticizer, 6 to 30 parts of wearable modifying agent, 4 to 8 parts of stabilizing agent, 4 to 32 parts of fire retardant, 10 to 40 parts of filling agent, and 0.8 to 3 part(s) of lubricating agent. The insulating and sheathing material has good wear-resisting and flame-retardant properties, high squeezing performance, high rolling performance and high flexing performance, as well as high flexibility and processability.

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 discloses a PVC foaming wood plastic composite material which is produced by processing the raw materials based on the parts by weight: 100 parts of polyvinyl chloride (PVC), 40-50 parts of lignified plant fiber, 10-20 parts of active light calcium, 3-6 parts of calcium zinc complex stabilizer, 1-3 parts of compound-type foaming agent, 0.5-1.5 parts of lubricating agent OPE wax, 0.5-1 part of compound lubricating agent and 3-8 parts of foaming conditioning agent; the raw materials are evenly mixed by a mixing machine and then are directly put into a screw extruder to be extruded and molded at the temperature of 160-170 DEG C. The PVC foaming wood plastic composite material is added with full dose of heat stabilizer in the process of blending and processing, so that the degradation temperature of plastics can be increased, thermal degradation of the plastics and carbonization of wood powder in the process of mixing and forming can be prevented, and the operation of extruding and molding can be completed in one step, thus greatly simplifying the production technique and reducing the production cost.

A composition for forming a reinforced composite siding product and a composite siding product formed by an extrusion process utilizing the composition is provided. The mixed resin formulation utilized to form the composite siding product includes a polymeric resin, a filler, a processing aid, at least one lubricant, and a thermal stabilizer. In a preferred embodiment, the polymer resin is polyvinyl chloride and the filler is talc. The mixed resin formulation may be extruded with a reinforcement material in a screw extrusion process to form a composite siding product. One or more reinforcing fibers may be utilized in the extrusion process. The reinforcement fibers may be present in the final product in an amount up to 25% by weight of the final product. In at least one preferred embodiment, the reinforcement fibers are glass fibers. A weatherable cap may be co-extruded to form the final reinforced, foamed composite siding product.

The present invention is wear-resistant wood-plastic floor board and its production process, and belongs to the field of decoration material technology. Polyvinyl chloride resin or plastic material is added with waste wood powder or fiber material powder, active calcium carbonate, assistant, stuffer, etc, and the mixture is pelletized, and further treated through extruding, molding, vacuum cooling, settling, drawing and cutting to form the basic wood-plastic board. The basic wood-plastic board is polished, groove milled and covered with surface decoration layer to form the wear resistant wood-plastic floor board product. The wear resistant wood-plastic floor board is beautiful, wear resistant, fireproof, waterproof, non-skid, anticorrosive and environment friendly and has high strength, heat insulation, electrical insulation and other advantages.

The invention discloses a cold-resistant temperature-resistant flame-retardant surface migration-resistant polrvinyl chloride insulating material. The material comprises the following components in part by weight: 100 parts of polrvinyl chloride (PVC) resin, 5 to 20 parts of cold-resistant plasticizer, 20 to 40 parts of temperature-resistant plasticizer, 6 to 40 parts of polyester polymer plasticizer, 3 to 8 parts of environmentally-friendly heat stabilizer, 20 to 80 parts of filler, 4 to 15 parts of fire retardant, 2 to 8 parts of processing modifier, 0.3 to 1.5 parts of lubricant and 0.1 to 1.2 p[arts of toner. The polrvinyl chloride composite material of the invention has the comprehensive performance, such as low temperature embrittlement resistance, low temperature compact resistance, high temperature aging resistance, fire resistance, surface migration resistance and the like.

A composition and method for improving the fluid efficiency of many oilfield treatments is given. The composition is a solid additive, in a viscosified fluid, in a size range small enough that it enters formation pores; it optionally bridges there to form an internal filter cake, and then decomposes to provide a breaker for the viscosifying system for the fluid. Examples of suitable additives include waxes, polyesters, polycarbonates, polyacetals, polymelamines, polyvinyl chlorides, and polyvinyl acetates. Degradation of the additive may be accelerated or delayed.

The invention relates to an anti-explosion polyvinyl chloride sheath material for mining cables and a preparation method thereof. The preparation method comprises mixing evenly polyvinyl chloride resin 100 parts by weight, plasticizer 30-80 parts by weight, stuffing 0-60 parts by weight, high-conductivity carbon black 10-40 parts by weight, anti-static agent 0-10 parts by weight, and other auxiliary agent 3-20 parts by weight by a high-speed mixer, extruding at 130-170 DEG C by a single- or double-screw extruder after being melted, water-cooling drawing bar or wind-cooling die-surface hot cutting and granulating, oven-drying, and packaging to obtain the finished product. Compared with the prior art, the invention has the advantages of excellent durable anti-static property and flame retardant property.

The invention discloses a flexible current collector for a lithium battery and a preparation method thereof. The flexible current collector comprises a flexible substrate layer, a metal conductive plated layer and a conductive anti-oxidization layer which are combined tightly in sequence, wherein the flexible substrate layer is one of polyvinyl chloride, polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polydimethylsiloxane and polyimide; the thickness of the flexible substrate layer is 1-20 microns; the metal conductive plated layer is one of Cu, Al, Ni, Au and Ag and the thickness of the metal conductive plated layer is 0.1-5 microns; and the conductive anti-oxidization layer is at least one of conductive graphite, graphene, carbon nanotubes and carbon nano-fibers, and the thickness of the conductive anti-oxidization layer is more than 0 and smaller than 1 micron. The flexible current collector disclosed by the invention has high machinability and relatively high thermal stability and anti-oxidization energy; and the quality density of a whole body is small.

The invention relates to a high-temperature resistant thermoplastic polyvinyl chloride cable material, belonging to the technical field of new materials. The cable material consists of the following components in parts by weight: 100 parts of polyvinyl chloride, 30-50 parts of modified plasticizer, 10-20 parts of plasticizer, 20-40 parts of modifier, 2-10 parts of flame retardant, 10-30 parts of inorganic filler, 5-15 parts of stabilizer and 1-5 parts of processing aid. A preparation method of the cable material comprises the following steps: weighing the raw materials according to the components and weight parts of the cable material; uniformly mixing the polyvinyl chloride and adding the modified plasticizer and the common plasticizer; heating and stirring and adding other raw materials; discharging from a high mixing machine and feeding into a twin-screw extruder for extrusion and granulation; and performing air cooling to obtain the final product. The cable material has the advantages that the physical property is good, the applicable temperature range is wide, little pollution is caused, the flame retardance is good, the smoke output in combustion is low, the preparation method is simple, and the cost is low.

The invention relates to a cord-cable polyvinyl chloride (PVC) plastic for an automobile, which is formed by chemical crosslinking and mainly comprises PVC, a plasticizing agent, a heat stabilizer, a lubricating agent, an antioxidant, stuffing, a crosslinking agent, an evocating agent, a crosslinking assistant agent and an abrasion resistance modifier. The polymer crosslinking plastic material has the advantages of good abrasion resistance, excellent mechanical property, good high temperature resistance (the heat resistant grade can reach 120 DEG C and the low temperature can reach 40 DEG C below zero), over 70 percent of tensile strength and elongation at break under the ageing condition at 150 DEG C for 168 hours, little weight loss and simple processing technique.

A wood-plastics composition is prepared from used or waste plastics, wooden fibres for modifying plastics, and resin compatibilizer through fusing and proportionally mixing. Said resin compatibilizer is prepared from EVA, acrylic acid or acrylate and polyvinyl chloride through mixing. Its advantages are high strength toughness, and improved machinability.

The invention provides a reaction bonding type node sealant and a preparation method thereof. The sealant comprises asphalt, modifiers, an emulsifier, a crosslinking agent, thickeners, a reinforcing agent and water. In the formula system, more appropriate modifiers are adopted compared with the prior art, so that a rubber asphalt mixture can achieve good emulsification effect, elasticity and strength of a sealing layer after drying are greatly improved, and the sealing effect can be good and lasting; the chemical linkage effect with concrete is formed by using the crosslinking agent, and bonding force with the concrete is improved; and a lot of thickeners are used for adjusting the stickness of the sealant system, so that the reaction bonding type node sealant can better adhere to the surface of a pentatricopeptide repeats (PPR) or polyvinyl chloride (PVC) pipe, and good sealing at positions where PPR or PVC water supply and drainage pipes are connected with base surfaces of concrete.

The invention discloses an impact-resistant modified polyvinyl chloride tube material, which is prepared from the following components in part by weight: 100 parts of polyvinyl chloride resin, 0.4 to 4.0 parts of stabilizing agent, 2 to 8 parts of toughening agent, 2 to 8 parts of rigid particles, 0.5 to 3.0 parts of processing aid, 1.1 to 2.5 parts of lubricant, 0.05 to 0.5 part of antioxidant, 0.03 to 3 parts of coloring agent and 0 to 5 parts of filling agent. A preparation process for the tube material comprises the following steps: mixing the components uniformly in a high-speed mixer, extruding the mixture to form the tube material by using a double-host single-screw extruder after the components are mixed uniformly in a cooling mixer, and modularizing, vacuuming and cooling-molding the tube material; and cutting and packing the tube material with fixed length. The impact-resistant modified polyvinyl chloride tube material uses a method of cooperative toughening of the toughening agent and the rigid particles, and solves the problem that the impact-resistant PVC tube material difficultly realizes rigidity balance so that the toughness of the tube material is obviously improved while the rigidity of the hard PVC tube material is kept.

The invention relates to a rubber composite, comprising nitrile rubber, polyvinyl chloride, carbon soot, activator, vulcanizator, age inhibitor, antiscorcher, accelerant and plasticizer, wherein, the plasticizer is ethylhexyl sebacate and adipate. The rubber composite of the invention obviously improves the anti-low temperature performance of the rubber composite while ensuring the anti-oil performance, anti-ozone performance, tensile strength and elongation at break.

An oil-based ink composition for ink jet recording of the present invention contains a colorant and at least 50% by weight of a mixed solvent made by mixing from 0.02 to 4 parts by weight of a lactone-type solvent with 1 part by weight of polyoxyethylene glycol dialkyl ether represented by the following general formula (1):

R¹¹—(OC₂H₄)_n—OR¹²  General Formula (1)

(wherein R¹¹, R¹² represent alkyl groups having from 1 to 3 carbon atoms and can be the same or different, and n is an integer from 2 to 4). The oil-based ink composition can be suitably used for printing on a polyvinyl chloride substrate and is excellent in all of print quality, printing stability, dry characteristics of printed matter, and storage stability of ink.