Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

3785 results about "Chlorinated polyethylene" patented technology

Chlorinated polyethylene (PE-C) is an inexpensive variation of polyethylene having a chlorine content from 34 to 44%. It is used in blends with polyvinyl chloride (PVC) because the soft, rubbery chlorinated polyethylene is embedded in the PVC matrix, thereby increasing the impact resistance. In addition, it also increases the weather resistance. Furthermore, it is used for softening PVC foils, without risking plasticizer migration. Chlorinated polyethylene can be crosslinked peroxidically to form an elastomer which is used in cable and rubber industry. When chlorinated polyethylene is added to other polyolefins, it reduces the flammability. Chlorinated polyethylene is sometimes used in power cords as an outer jacket.

Anti-oil and fire-retardant chlorinated polyethylene sheath material with good weather resistance and preparation method thereof

The invention relates to an anti-oil and fire-retardant chlorinated polyethylene sheath material with good weather resistance and a preparation method thereof. The sheath material uses chlorinated polyethylene rubber as main raw material and adds chlorosulfonated polyethylene rubber, triallyl isocyanurate, 1,3-bis (tert-butyl peroxide isopropyl) benzene, trioctyl trimellitate, carbon black, antioxidant 1010, ultra-fine talc powder, antimony trioxide, and high-activity magnesium oxide R-150 according to ratios; the preparation method is as follows: at first, mixing part of the auxiliary agents, then mediating, internal mixing, open mixing, granulating and extruding are carried out on the mixture to form cables, thus the cables are obtained. In the formula, high temperature resistant plasticizer is utilized, various auxiliary agents with appropriate proportions are added into the formula, so that chlorinated polyethylene rubber cable material can reach a high temperature of 105 DEG C, and can be used at the lowest temperature of minus 50 DEG C. The sheath material has the advantages of good anti-aging property, excellent electrical insulation and mechanical property, environmental protection and high flame resistance, thereby being suitable for cold and oil-contaminated severe environment and transmission and distribution circuits of which the current-carrying capacities are large and the rated voltages are at or below 450/750V. Meanwhile, compared with traditional chloroprene rubber cable material, the sheath material has the characteristics of low cost, fast extruding speed and high output benefit.
Owner:NINGBO WELL ELECTRIC APPLANCE CO LTD

Composition for flame-retardant polyvinyl chloride (PVC) plastic foam board, product prepared from same, and preparation method thereof

InactiveCN102127275AImprove performance parametersNational laboratoryOxygen
The invention relates to a composition for a flame-retardant polyvinyl chloride (PVC) plastic foam board, and the flame-retardant PVC plastic foam board produced by a double screw extrusion method. The composition comprises the following components in part by weight: 100 parts of polyvinyl chloride, 5 to 25 parts of polyacrylate copolymer, 0 to 30 parts of chlorinated polyethylene, 0 to 30 parts of chlorinated polyvinyl chloride, 20 to 70 parts of flame retardant and smoke suppression agent, and 0 to 5 part of plasticizer, and also comprises a resin melt reinforcing agent and additives such as a foaming agent, a lubricating agent and a stabilizing agent and the like. After the produced flame-retardant PVC plastic foam board is detected by Shanghai Building Material and Component Quality Surveillance Office and State Laboratory of Fire Science (University of Science and Technology of China, Hefei), the oxygen index is more than or equal to 32, the smoke density grade is less than or equal to 75, the average combustion time is less than or equal to 30 seconds, the heat release rate is less than 250W/g, the heat conductivity is 0.047W/m.K, and the flame-retardant PVC plastic foam board meets the B1 requirement of GB/T8624-1997, and meets the V-0 standard of UL-94.
Owner:SHANGHAI YUANQI ENERGY TECH DEV

Embedded type high-temperature co-curing high-damping composite material and preparation process thereof

The invention discloses an embedded type high-temperature co-curing high-damping composite material. The embedded type high-temperature co-curing high-damping composite material comprises the following components in parts by weight: 92.5-93.5 parts of butyl rubber, 6.5-7.5 parts of chlorinated butyl rubber, 2.9-3.1 parts of chlorinated polyethylene, 3.9-4.1 parts of zinc oxide, 0.8-1 parts of stearic acid, 50-52 parts of carbon black and 5.9-6.1 parts of octyl phenolic resin. The invention also discloses a preparation method of the composite material. According to the method, the mixture of the butyl rubber and the chlorinated butyl rubber is taken as a main material, the mixture is dissolved in an organic solvent to be prepared into unvulcanized visco-elasticity damping material solution, the unvulcanized visco-elasticity damping material is brushed and coated on the prepreg surface of the composite material, by adopting a brush-coating method or/and spray-coating method, a damping layer is embedded in the structure of the composite material by being taken as a specific paving layer and then is processed into a damping-structure member of the embedded composite material by a co-curing process curve, and the damping-structure member of the embedded composite material has a wide application prospect in the high-tech fields such as high speed trains, aviation, aerospace and the like.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

High performance chlorinated polyethylene-epoxy resin anticorrosive coating system

The invention discloses a high performance chlorinated polyethylene-epoxy resin anticorrosive coating system, which consists of a surface coating, an intermediate coating and a prime coating which are matched, wherein the surface coating is a high performance chlorinated polyethylene anticorrosive finish paint; the intermediate coating is a high performance chlorinated polyethylene/epoxy resin semi-interpenetrating network anticorrosive middle coating; and the prime coating is an epoxy resin micaceous iron oxide anti-corrosive primer. The preparation for the coating system comprises the preparation of surface coating and the intermediate coating; the coating construction is orderly multi-layer coating construction on the surface of a metal substrate; and finally the functionally graded anticorrosive coating is formed so as to effectively improve interface bonding force and adhesive force of various layers and fully exert the corrosion resistance of the high performance chlorinated polyethylene and the substrate bonding function of the epoxy resin; and the functionally graded anticorrosive coating has good corrosion resistance, such as the resistance to acid, alkali, saline water, gasoline and the like, and also has good physical and mechanical properties, such as shock resistance and flexibility, so the functionally graded anticorrosive coating has important application value in anticorrosive fields such as steel structures, bridges, metallurgy, chemical industry and the like, in particular heavy duty anticorrosive field of petrochemical industry.
Owner:郭再春

Three-layer noise reduction drainage pipe and manufacture method thereof

The invention discloses a three-layer noise reduction drainage pipe, which comprises a drainage pipe body, wherein the drainage pipe body is a three-layer co-extrusion composite pipe formed by an impact-resistance outer layer, a noise reduction middle layer and an impact-resistance inner layer through co-extrusion. The noise reduction middle layer is a sound-absorbing middle layer or a sound insulation middle layer made of expandable polyvinyl chloride composition materials. The above layers are prepared with the following materials. The impact-resistance outer layer is made of polyvinyl chloride resin, chlorinated polyethylene, dibasic lead phosphite, tribasic lead sulfate, calcium stearate, lead stearate, paraffin, PVC processing and modifying agent, active light calcium carbonate, titanium dioxide and dioctyl phthalate. The sound-absorbing middle layer is made of polyvinyl chloride resin, chlorinated polyethylene, lead salt stabilizer, calcium stearate, stearic acid, paraffin, dioctyl phthalate, active light calcium carbonate and barium sulfate. The sound insulation middle layer is made of polyvinyl chloride resin, methacrylic ester polymer and inorganic foaming agent. Compared with the outer layer, the impact-resistance inner layer comprises the same components with the outer layer, except that PVC is adopted instead of polyvinyl chloride resin. The noise of the drainage pipe can be effectively reduced and the intensity of the drainage pipe is enhanced.
Owner:ZHEJIANG SANLENG PLASTIC

Fireproof paint for super-thin steel structure and preparation method thereof

The invention discloses a method preparing for an ultra-thin inflatable steel structure fire-proof paint, which is characterized by the following: the allocation of tetrabromo-bisphenol A epoxide resin contains epichlorohydrin and tetrabromo-bisphenol A with weight rate at 1. 3-1. 5:1 and epichlorohydrin and sodium hydroxide with weight rate at 1. 0-1. 05:1; the allocation of fireproof painting is tetrabromo-bisphenol A epoxide resin and hyperchlorinated polyvinyl chloride with weight rate at 3: 1, polyphosphate, melamine, pentaerythritol with weight rate at 3:2:1, antimony trioxide and paraffin chloride with weight rate at 3:7, aluminium hydroxide and zinc borate smoke suppressor with weight rate at 10: 3. The method comprises the following steps: adding epichlorohydrin and tetrabromo-bisphenol A to the autoclave; mixing and heating at 90 Deg. C; adding caustic soda solution; keeping 7. 5 hours; washing and removing thylbenzene by heating;getting tetrabromo-bisphenol A epoxide resin; adding the mixed solvent to tetrabromo-bisphenol A epoxide resin and perchlorinated polyethylene; mixing and dissolving; adding ammonium polyphosphate, melamine, pentaerythrite, titanium dioxide, antimony oxide, aluminum hydroxide, zinc borate separately, adding chlorcosane; grinding after high-speed dispersing uniformly; mixing polyamide uniformly according to 10:1; getting the fire-proof paint.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products