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9418 results about "Acrylonitrile" patented technology

Acrylonitrile is an organic compound with the formula CH₂CHCN. It is a colorless volatile liquid, although commercial samples can be yellow due to impurities. In terms of its molecular structure, it consists of a vinyl group linked to a nitrile. It is an important monomer for the manufacture of useful plastics such as polyacrylonitrile. It is reactive and toxic at low doses. Acrylonitrile was first synthesized by the French chemist Charles Moureu (1863–1929) in 1893.

Coating composition, process for preparing coating composition and process for preparing dispersing component of inorganic oxide sol

A coating composition which comprises (A) a resin having a glass transition temperature of 50 to 120 DEG C., a number average molecular weight of 2,000 to 100,000, a hydroxyl value of 50 to 150 mgKOH/g and an acid value of 1 to 25 mgKOH/g, which is produced by copolymerizing 10 to 90 percent by weight of (a) a (meth)acrylic acid ester of a C1 to C12 alkyl alcohol, 10 to 50 weight % of (b) a first polymerizable double bond-containing and hydroxyl group-containing monomer, 0.1 to 10 weight % of (c) a polymerizable double bond-containing and carboxyl group-containing monomer, 0 to 20 weight % of (d) styrene, 0 to 20 weight % of (e) acrylonitrile and 0 to 10 weight of (f) a second polymerizable double bond-containing monomer, (B) at least one compound selected from the group consisting of a polyisocyanate compound having two or more unblocked isocyanate groups and/or blocked isocyanate groups in the molecule and an aminoplast resin, (C) a dispersing component of at least one inorganic oxide sol selected from the group consisting of an aluminum oxide sol, a silica sol, a zirconium oxide sol and an antimony oxide sol, wherein an amount of a nonvolatile matter of component (C) is 5 to 60 percent by weight based on a total amount of nonvolatile matter of resin (A), compound (B) and component (C). The coating composition provides cured films having excellent weathering resistance, light resistance, stain resistance, stain-removing property, chemical resistance, moisture resistance and appearance and is environmentally friendly and safe.
Owner:BASF NOF COATINGS CO LTD

Rubber composition containing resinous nanoparticle

InactiveUS7347237B2Deteriorate controllabilityDeteriorate stabilitySpecial tyresInflatable tyresElastomerEngineering
This invention relates to a tread rubber composition for tires with the addition of crosslinked resinous nanoparticles having a high glass transition temperature (Tg) into elastomeric base polymers. The invention demonstrates greatly improved handling performance without deteriorating controllability and stability during high-speed running. The present invention more specifically discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads; wherein said tread is adapted to be ground-contacting; and wherein the tread is comprised of a rubber composition comprising: (1) a rubbery polymer; (2) from 1 to 30 parts per hundred parts of rubber by weight of pre-crosslinked polymer particles, wherein the pre-crosslinked polymer particles have a mean number average particle size as determined by light scattering which is within the range of 30 nm to 500 nm, wherein the pre-crosslinked polymer is comprised of repeat units that are derived from at least one monomer selected from the group consisting of acrylate monomers, acrylonitrile monomer, and vinyl halide monomers, wherein the pre-croslinked polymer is in the form of core-shell particles having a core and a shell, and wherein the pre-crosslinked polymer has a glass transition temperature which is within the range of 30° C. to 200° C.; and (3) 10 to 150 parts per hundred parts of rubber by weight of at least one filler selected from the group consisting of carbon black and silica.
Owner:THE GOODYEAR TIRE & RUBBER CO

Carbon nano tube-containing sulfur-based composite cathode material and preparation method thereof

The invention discloses a carbon nano tube-containing sulfur-based composite cathode material and a preparation method thereof. The sulfur-based composite cathode material is a ternary composite material AxByCz, wherein A is a dehydrocyclization product of an acrylonitrile-itaconic acid copolymer; B is elemental sulfur; C is a carbon nano tube; x is more than or equal to 30 weight percent and less than or equal to 60 weight percent; y is more than or equal to 30 weight percent and less than or equal to 60 weight percent; and z is more than or equal to 1 weight percent and less than or equal to 20 weight percent. The preparation method comprises the following steps of: in-situ polymerizing an acrylonitrile-itaconic acid monomer on the surface of the multi-wall carbon nano tube, and performing thermal treatment on both of the acrylonitrile-itaconic acid copolymer and the elemental sulfur, so that the sulfur is uniformly dispersed in a substrate formed by the dehydrocyclization of the acrylonitrile-itaconic acid copolymer. The carbon nano tube-containing sulfur-based composite cathode material and a lithium cathode form a secondary lithium-sulfur battery which is charged and discharged at the room temperature. The carbon nano tube-containing sulfur-based composite cathode material has the reversible specific capacity of 697 mAh/g and high cyclical stability.
Owner:SHANGHAI JIAO TONG UNIV

Method for preparing polyacrylonitrile carbon fiber protofilament by dry and wet methods

The invention discloses a method for preparing polyacrylonitrile carbon fiber protofilament by dry and wet methods. The method comprises the steps of polymerization, demonomerization and defoaming, filtration, coagulation, washing and drafting, oiling densification, steam drafting, heat setting and drying. Three-level coagulating baths at the temperature of between 10 DEG C below zero and 70 DEG C and with dimethyl sulfoxide with concentration of 10 to 60 mass percent are adopted in the coagulation step, and the first coagulating bath contains aqueous ammonia accounting for 0.05 to 1 percent of the mass of the first coagulating bath; and a spinning head is subjected to 1.5 to 5 times positive drafting in the first coagulating bath, and the drafting is 0 in the second and third coagulatingbathes. According to the method for preparing the polyacrylonitrile carbon fiber protofilament, the spinning process is stable, the broken filament is little, the spinning speed is high, the spinningis stable, the prepared protofilament has few defects, the density is not less than 1.180g/cm<3>, and the tensile strength is not less than 7cN/dtex. The protofilament can be prepared into a high-performance carbon fiber with tensile strength of more than 4.9GPa and elastic modulus of between 260 and 280GPa by high-temperature carbonization.
Owner:KINGFA SCI & TECH CO LTD +1

High thermal conductivity resin composition and high thermal conductivity coated metal foil board manufactured by using same

The invention relates to a high thermal conductivity resin composition and a high thermal conductivity coated metal foil board manufactured by using the same. The high thermal conductivity resin composition comprises the following components of: epoxy resin, at least one phenoxy resin or carboxy terminal butadiene acrylonitrile, biphenyl phenolic resin and a high thermal conductivity packing material, wherein the biphenyl phenolic resin has the structure shown in the specification. The high thermal conductivity coated metal foil board manufactured by using the high thermal conductivity resin composition comprises a high thermal conductivity adhesive film and metal foils coated on both sides of the high thermal conductivity adhesive film, wherein the high thermal conductivity adhesive film comprises a carrier film and the high thermal conductivity resin composition coated on the carrier film, and the carrier film is a polyester film or a polyimide film. The high thermal conductivity coated metal foil board comprises a resin composite metal foil and a metal foil or another resin composite metal foil coated on the previous resin composite metal foil, and the resin composite metal foil comprises a metal foil and the high thermal conductivity resin composition coated on the metal foil.
Owner:GUANGDONG SHENGYI SCI TECH

Thermoplastic elastomer composition, hose comprising thermoplastic elastomer composition and process of production thereof

PCT No. PCT/JP97/03987 Sec. 371 Date Jul. 2, 1998 Sec. 102(e) Date Jul. 2, 1998 PCT Filed Oct. 31, 1997 PCT Pub. No. WO98/20068 PCT Pub. Date May 14, 1998A thermoplastic elastomer composition containing a component (A) (thermoplastic polyolefin resin), component (B) (epoxy-group-containing ethylene acrylic ester copolymer rubber), and component (C) (acid-modified polyolefin resin) comprising a continuous phase of the component (A) in which the component (B) is dispersed as a dispersed phase and is cross-linked by a peroxide; a thermoplastic elastomer composition comprising a continuous phase of a thermoplastic polyolefin resin (A) and a dispersed phase of an epoxy-group-containing ethylene-acrylic ester copolymer rubber component (B) and acrylonitrile butadiene rubber component (C), which is dynamically cross-linked; and a hose having an inner tube, at least one reinforcing layer, and an outer cover, wherein the inner tube and the outer cover contain a thermoplastic elastomer composition comprised of a thermoplastic resin in which is blended an at least partially cross-linked elastomer component, the reinforcing layer is a brass-plated wire, and the reinforcing layer and inner tube and the reinforcing layer and outer cover have between them a maleic-acid-modified polyolefin thermoplastic resin.
Owner:YOKOHAMA RUBBER CO LTD
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