Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.

Abstract: A rubber composition for a breaker topping can achieve balanced improvement of fuel economy, hardness, elongation at break, and adhesion. A pneumatic tire includes a breaker produced using the rubber composition. The rubber composition for a breaker topping includes a rubber component; silica; sulfur; a certain vulcanization accelerator; a compound represented by the following formula and/or a hydrate thereof; and stearic acid and/or cobalt stearate, wherein the mass ratio of the sulfur/the vulcanization accelerator and the total amount of stearic acid and cobalt stearate are set to the respective certain values, the formula being: MO3S—S—(CH2)q—S—SO3M wherein q represents an integer of 3 to 10, and Ms are the same as or different from each other, each representing lithium, potassium, sodium, magnesium, calcium, barium, zinc, nickel, or cobalt.

Abstract: The invention relates to a composition which, when mixed with a polymer composition, allows for the formation of a continuous and cohesive film. The film is characterized in that it provides water, grease and oil resistance, provides a water vapor barrier and can used as wax replacement treatment and a top coat for flexible packaging, but also on other substrates. This film is formed at a very fast set speed without the need of thermal energy. The composition contains i) a salt of one or more of myristic, palmitic and stearic acid; and preferably also ii) a C9-C18 fatty acid complex of a metal ion, the metal ion having an oxidation state of at least 3. The invention also provides processes and coated substrates.

Abstract: A polymer composition, stretched and unstretched articles and processes to make stretched and unstretched articles from that composition are set forth wherein the composition comprises a blend of a polyamide wherein the amino to carboxyl end group ratio of the polyamide polymer is less than 1.0 when the relative viscosity of the polyamide polymer is less than 2.0, and less than 0.30 when the relative viscosity is in the range of 2.0 to 2.3 and less than 0.20 when the relative viscosity is greater than 2.3, a crystallizable polyester and an interfacial tension reducing agent.

Abstract: A composition which, when mixed with a polymer composition, allows for the formation of a continuous and cohesive film. The film is characterized in that it provides water, grease and oil resistance, provides a water vapour barrier and can used as wax replacement treatment and a top coat for flexible packaging, but also on other substrates. This film is formed at a very fast set speed without the need of thermal energy. The composition contains i) calcite alone or in combination with a salt of one or more of myristic, palmitic and stearic acid; and also ii) a C9-C18 fatty acid complex of a metal ion, the metal ion having an oxidation state of at least 3. The composition is incorporated in material such as cellulose based material or plastic based material.

Abstract: The subject of the present invention is a process for preparing a precomposite based on nanotubes, comprising bringing said nanotubes into contact with at least one given plasticizing agent. It also relates to a precomposite thus obtained, and to its use for conferring at least one electrical, mechanical and/or thermal property on a polymer material. It also relates to the use of a given plasticizer for improving the dispersion and/or mechanical properties and/or electrical conductivity and/or thermal conductivity of nanotubes in a polymer matrix.

Abstract: Suggested are solvent compositions, comprising (a) Carboxylic acid dialkyl amides (b) Fatty acids or their salts, and (c) Ethylene oxide-propylene oxide copolymers.

Abstract: Capable of being provided are [1] a master batch comprising polyamide (X) comprising a diamine unit containing 70 mole % or more of a metaxylylenediamine unit and a dicarboxylic acid unit and an alkali compound (A), wherein an average particle diameter of the alkali compound (A) contained in the master batch is 50 ?m or less; a contained number of particles having a particle diameter of exceeding 80 ?m in 5 square millimeter of a cross section of the master batch is 1.5 particle or less; and a sum (m) of values obtained by multiplying a mole concentration of an alkali metal atom and a mole concentration of an alkaline earth metal atom each contained per g of the master batch by valencies thereof respectively is 60 ?mol/g or more and 1710 ?mol/g or less and [2] a production process for a polyamide resin composition prepared by making use of the master batch described in the above item [1].

Abstract: A method of making a pressure-sensitive hot melt adhesive. The method includes extruding a melt composition that includes a polymer, wherein the polymer has acidic groups covalently attached thereto, and a metal salt hydrate, wherein the metal salt hydrate has a melting point that is less than the maximum processing temperature.

Abstract: A two part low volatile organic compounds (VOC) content ethylene propylene diene terpolymer formulation with a solids content of at least 60 percent solids by volume of the total formulation and a volatile organic compounds content less than 450 grams per liter, wherein a first component has EPDM, a solvent, a curative, an additive, and a blend of a pigment and a filler. The second component contains solvent and a metal drier. The invention includes a method for making the coating and a cured coated substrate with the cured waterproof rubber coating disposed thereon.

Abstract: The present invention is directed to a self-healing rubber composition comprising a functionalized elastomer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and a partitioned metal ion. The invention is further directed to a pneumatic tire comprising the self-healing rubber composition.

Abstract: The present invention provides vinyl chloride-based resin aggregate particles capable of providing a plastisol with excellent non-infiltrating property and favorable sagging property, a method for producing the same, and a glove using the same. The vinyl chloride-based resin aggregate particles of the present invention have a mean volume particle diameter of 10 to 60 ?m, and the percentage of particles having a particle diameter of 10 to 60 ?m is at least 50 vol %. The moisture absorption coefficient is 1.5 wt % or less when being retained for 24 hours under conditions of 30° C. and a relative humidity of 97.0±0.4%. A plastisol comprising 100 weight parts of the vinyl chloride-based resin aggregate particles and 160 weight parts of di-2-ethylhexyl phthalate satisfies a relationship of 3??70/?40?1000. Further, in the vinyl chloride-based resin aggregate particles of the present invention, the number of voids having a void size of 1.0 ?m or more per one aggregate particle is less than 5.

Abstract: Improved reaction processes comprise reacting a mixture to form a product comprising a metal alkyl, metal oxide, or mixture thereof and then passing said product to a post-reactor heat exchanger. The improvement comprises one or more of the following: (1) reacting said metal alkyl compound with an acid to produce a soluble metal ester; or (2) adding an ionic surfactant; or (3) adding a mixture comprising an antioxidant to the product under conditions sufficient to avoid formation of significant amounts of insoluble metal or metal compounds derived from said metal alkyl compound; or (4) purging said post-reactor heat exchanger with an inert gas under conditions to remove metal oxide from the post-reactor heat exchanger.

Abstract: This invention relates to a solid marking composition comprising at least one resin, at least one pigment, at least one dispersant, at least one solvent, and a gelling agent. This invention also provides a method of making the solid marking composition.

Abstract: The invention provides hot melt adhesives that comprise a templating agent, a polymer and a wax. It has been discovered that hot melt adhesives with an effective amount of templating agent have improved heat resistance than adhesives. The adhesives find particular use as case, carton, and tray forming, and as sealing adhesives, including heat sealing applications, for example in the packaging of cereals, cracker and beer products.

Abstract: A master batch for use in forming ultrafine metal particles serving as an adsorptive material, a method of producing the same, and a method of molding an article containing ultrafine metal particles by using the master batch. The master batch comprises a thermoplastic resin and a metal organoate contained therein, the metal of the metal organoate being selected from the group consisting of Cu, Ag, Au, In, Pd, Pt, Fe, Ni, Co, Zn, Nb, Sn, Ru and Rh. Adsorption performance is not expressed by the master batch but is expressed by an article molded by blending the resin with the master batch.

Abstract: The present invention relates to a polymer powder which comprises nylon-11, and to the use of this powder for shaping processes, and also to moldings produced from this polymer powder. The shaping processes are layer-by-layer processes which use powders, where regions of the respective layer are selectively melted via introduction of electromagnetic energy. The selectivity may—with no intention of restricting the invention thereto—be achieved via masks, application of inhibitors, of absorbers, or of susceptors, or via focusing of the energy introduced. After cooling, the regions then solidified can be removed in the form of moldings from the powder bed. Compared with moldings composed of conventional powders, the moldings constructed using the inventive powder by one of the inventive processes exhibit marked advantages in terms of component properties, particularly surface finish.

Abstract: The present invention is the aqueous floor polishing composition which contains the polyoxyalkylene diester compound represented by the following general formula (1) and does not contain the phosphorus-containing plasticizer. R1 and R2 represent each independently alkyl groups having 1 to 24 carbon atoms, m represents an integer from 2 to 4, n represents a number from 2 to 40. The aqueous floor polishing composition of the present invention does not contain the phosphorus-containing plasticizer. Therefore, it does not affect the environment negatively, in spite of having excellent leveling properties, lustering properties and heel mark resistance properties.

Abstract: A heat conduction composition is proposed, comprising at least one polymer and a heat-conducting auxiliary material that has an especially high heat conductivity and at the same time has a high mechanical strength. To this end, the heat-conducting auxiliary material comprises particles that in turn are made up of primary particles and that have a mass-specific surface area of 1.3 m2/g or less. Also described are a heat-conducting surface element manufactured from said heat conduction composition as well as application possibilities thereof.

Abstract: A composition includes a polymer matrix, a multiple-acid-derived metal soap, wherein the metal has an oxidation state of +3 or +4. An associated method for making a rubber composition includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; and combining the multiple-acid-derived metal soap with a diene rubber.

Abstract: This invention discloses composite materials utilizing high refractive index materials and their use with phosphors, LED packaging and as fillers in polymers and in polymer blends.

Abstract: Use of an atmospheric plasma for the surface treatment of inorganic particles selected from the group consisting of particles of metal oxides, particles of metal carbonates, particles of metal sulfates, particles of metal phosphates, acicular particles, platy particles and fibrous particles,with a fluorine-containing precursor.

Abstract: A composition for the decoration of surfaces and for producing decorative objects includes a colloidal mix containing an organic binder with physical drying (evaporation of solvents), pearly pigments, coloring pigments, and mainly aliphatic organic solvents. The decorative composition is in the form of a homogenized liquid product that can be poured on a horizontal surface so as to form a uniform colored coat that has a random mosaic appearance after a drying time.

Abstract: Compositions comprising a polymer resin comprising at least one copolymer with hydrolysable groups, a water-generating metal salt hydrate, and a catalyst that comprises a metal atom and at least two ligands taken from the set alkyloxy and carboxylate are used to form articles that moisture-cure through in-situ generation of water via dehydration of the metal hydrate. The compositions are melt mixed to promote the dehydration and start the cure process during the mixing step. The curing compositions are formed and allowed to harden.

Abstract: The present disclosure is directed to a polymeric composition containing a vinyl chloride resin and an epoxidized fatty acid ester. The polymeric composition also includes a heat stabilizing composition. The heat stabilizing composition includes a first metal salt, a second metal salt, and a ?-diketone. The epoxidized fatty acid ester is the primary, or the sole, plasticizer in the polymeric composition. The present polymeric composition finds advantageous application as a coating for wire and cable.

Abstract: The present invention has its object to provide a rubber composition for a studless tire that contributes to both good braking force and high handling stability on ice or snow, and a high performance studless tire using the rubber composition. The rubber composition for the studless tire contains: a mixture of a zinc salt of an aliphatic carboxylic acid and a zinc salt of an aromatic carboxylic acid; an oil or a plasticizer; and a rubber component that comprises 40% by mass or more of a butadiene rubber relative to 100% by mass of a total amount of the rubber component.

Abstract: The present invention discloses a heat-resistant polyamide composition and application thereof. The composition comprises the following components in percentage by weight: 40% to 90% of heat-resistant polyamide resin, 5% to 35% of mineral fiber A, 0 to 35% of mineral filler B, 0.1% to I% of light stabilizer, 0.1% to 1% of flow modifier and 0.1% to 1% of antioxidant. In the present invention, heat-resistant polyamide resin with the ratio of amine-terminated group and carboxyl-terminated group between 0.1 and 0.8 is selected to be matched with deformed glass fibers with an aspect ratio of 2 to 6, the mineral filler B and the flow modifier to obtain the heat-resistant polyamide composition.

Abstract: The present invention provides a golf ball which includes (I) a first member composed of a material molded under heat from a rubber composition of (a) a base rubber composed primarily of a mixture of at least 60 wt % of a polybutadiene having a stress relaxation time (T80), as defined below, of less than 4 seconds and up to 40 wt % of a polybutadiene having a stress relaxation time (T80) of at least 4 seconds, (b) an unsaturated carboxylic acid and/or a metal salt thereof, and (c) an organic peroxide; and (II) a second member composed of a specific, highly-neutralized, resin composition. The golf ball of the invention, by being thus constituted, has an excellent resilience for the ball as a whole, a good, soft, feel on impact, and imparts an excellent spin performance, thereby enabling an increased distance to be achieved. In addition, it has a high manufacturability.

Abstract: An impact resistant polycarbonate composition having improved resistance to polymer degradation comprises an aromatic polycarbonate in admixture with an elastomer-modified graft copolymer that is the product of an emulsion polymerization process, wherein composition is a product of compounding the aromatic polycarbonate and the elastomer-modified graft copolymer in the presence of a buffer comprising a potassium salt of phosphoric acid.

Abstract: Provided is a silicone rubber composition having good transparency and hardness. The present invention is a hydrosilylation-curable silicone rubber composition containing (A) 100 parts by mass of an organopolysiloxane, (B) a silicone resin, (C) an organohydrogenpolysiloxane, (D) a rare earth salt of a carboxylic acid represented by general formula (I): (RCOO)nM (I) (in the formula, R denotes a monovalent hydrocarbon group having 4 to 10 carbon atoms, n denotes a number between 3 and 4, and M denotes a rare earth element selected from among cerium (Ce), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm) and the like), and (E) a hydrosilylation reaction catalyst.

Abstract: To provide a slurry composition by which a ceramic green sheet to be obtained has sufficient mechanical strength and has little dimensional change during storage and ply separation is less prone to occur at the beginning of degreasing. A slurry composition containing a polyvinyl acetal resin which has a degree of polymerization of 500 or more and 6000 or less, a vinyl ester unit content of 0.01 to 30 mol %, a degree of acetalization of 50 to 83 mol % and the structural unit represented by the chemical formula (1): in an amount of 30% or more relative to the total molar amount of all acetalized structural units in a molecule, 10 to 1000 ppm of 2-methyl propanoic acid relative to the polyvinyl acetal resin and an organic solvent.

Abstract: A polymer useful as a flocculent, demulsifier or water clarifier may be selected from those having the general formula: wherein R is an alkyl group having from 3 to about 7 carbons and X is an integer having a value of at least two. The alkyl group may be linear or branched.

Abstract: Disclosed is a method for improving the barrier properties of polyethylene films. The method comprises mixing a substantially linear, high density polyethylene with a nucleating agent and converting the mixture into a film. The film made by the method of the invention has at least a 15% improvement on the water vapor barrier property and/or in the oxygen barrier property compared with the control film made from the same substantially linear, high density polyethylene but does not contain the nucleating agent.

Abstract: The invention relates to thermoplastic molding compositions comprising (A) from 34 to 99.99% by weight of at least one thermoplastic polymer selected from (i) polyarylene ethers, (ii) polyetherimides, (iii) polyarylene sulfides, and (iv) polycarbonates with glass transition temperature of at least 145° C., or else copolymers of the abovementioned polymers (i) to (iv), (B) from 0.01 to 10% by weight of at least one organic black pigment which is transparent in the range from 1000 nm to 1600 nm and which has thermal stability up to at least 300° C. to DIN EN 12877-1, (C) from 0 to 6% by weight of at least one mold-release agent selected from fatty acids, or from esters and amides, (D) from 0 to 50% by weight of one or more additives, where the total of the % by weight figures from (A), (B), (C) and (D) gives 100% by weight. The invention further relates to a process for preparation of the thermoplastic molding compositions, and to the moldings obtainable therefrom.

Abstract: A thermoplastic polymer composition comprises a thermoplastic polymer and a nucleating agent.

Abstract: The present invention relates to a pressure sensitive adhesive composition comprising a continuous phase and a discontinuous phase wherein a) the continuous phase comprises a water vapor permeable hydrophobic polymer; and b) the discontinuous phase comprises a water soluble salt.

Abstract: A durable polyoxymethylene composition includes a polyoxymethylene copolymer with 1,3-dioxolane as a comonomer, a lubricant, an inorganic filler, a nucleating agent including a sodium salt, a stabilizer, an anti-static agent. A ramp is made of the durable polyoxymethylene. The ramp and the durable polyoxymethylene have excellent micro-wear-resistant property.

Abstract: The present invention provides a film for forming which exhibits both excellent dimensional stability in processing and excellent formability as well as excellent appearance of surfaces and can thus be suitably applied to a variety of forming members through forming and used in forming decoration applications. Provided is a film for forming comprising a cyclic olefin-based resin as a main component, wherein the storage modulus at 120° C. is 101 MPa to 3,000 MPa and the storage modulus at 170° C. is 100 MPa or less.

Abstract: The present invention is to provide a magnesium sulfate-based desiccant comprising powder composed of coated particles that contain a particle of magnesium sulfate represented by the chemical formula MgSO4.nH2O (0?n?3) and a coating layer on the surface of the particle, wherein: (1) the coating layer contains a coating material that is at least one of carboxylic acids and salts thereof; (2) the powder has an average particle diameter of 5 ?m or less; and (3) a contact angle of water relative to the face formed with the powder is 20 degrees or more, and to a method for producing the same.

Abstract: Polymer compositions are described that are well suited for producing reflectors for light-emitting devices, such as light-emitting diodes. In one particular embodiment, the polymer composition contains a polymer resin, a white pigment, a silicone compound, and a nucleating agent. The polymer resin may comprise, for instance, a poly(1,4-cyclohexanedimethanol terephthalate). In accordance with the present disclosure, the composition also contains at least one silicone compound and at least one nucleating agent. The silicone compound and nucleating agent have been found to improve the molding processability and reflectance stability of the polymer composition.

Abstract: The present invention has its object to provide a high performance studless tire for a passenger vehicle which has both good braking force and high handling stability on ice or snow. The studless tire for a passenger vehicle comprises a tread having a total sulfur content of 0.7% by mass or less and having a crosslink density of 2.0×10?5 mol/cm3 or higher.

Abstract: To provide a fluorinated elastic copolymer composition, and a cross-linked rubber member obtained by crosslinking the fluorinated elastic copolymer composition, which is excellent in hot water resistance and steam resistance under severe conditions. A fluorinated elastic copolymer composition, which comprises a fluorinated elastic copolymer and a compound represented by the following formula (1) wherein the compound represented by the following formula (1) is contained in an amount of from 0.1 to 10 parts by mass per 100 parts by mass of the fluorinated elastic copolymer: (RCOO?)nMn+??(1) (wherein R is a C10-30 organic group, n is an integer of 2 or 3, and M is an alkaline earth metal, Zn, Cd, Co, Sn, Cu, Pb, Ni or Al).

Abstract: The present invention provides a polyvinyl alcohol-based resin composition having less coloration from melt processing and having high aging stability of the melt viscosity comprising a polyvinyl alcohol-based rein having a structural unit represented by the following formula (1) and having an absorbance of 0.1 to 0.3 of 280 nm in an ultraviolet absorbance spectrum as a 4 mass % aqueous solution, a carboxylic acid and an alkaline (earth) metal salt, wherein when an aqueous solution of the polyvinyl alcohol-based resin composition is prepared so as to have a content of the polyvinyl alcohol-based resin of 4 mass %, the pH of the aqueous solution at 20° C. is from 5.5 to 7: wherein R1, R2 and R3 independently represent a hydrogen atom or an organic group, X represents a single bond or a bonding chain, and R4, R5 and R6 independently represent a hydrogen atom or an organic group.

Abstract: Provided are an impregnated calcium carbonate that hardly flies but has excellent dispersibility in a polymer composition, a method for producing the impregnated calcium carbonate, and a polymer composition including the impregnated calcium carbonate. The impregnated calcium carbonate is obtained by surface treating calcium carbonate with at least one of a fatty acid, a resin acid, and derivatives of them to yield a surface treated calcium carbonate and impregnating the surface treated calcium carbonate with an organic compound in a liquid state at a normal temperature in an amount of 3 to 22 parts by weight with respect to 100 parts by weight of the surface treated calcium carbonate.

Abstract: Disclosed is a thermoplastic composition comprising a poly(trimethylene terephthalate), or poly(butylene terephthalate), and about 0.2 to about 30 weight % of a modifier comprising fatty acid-modified ionomer where the ionomer is derived from an ethylene acid copolymer in which the combined acid moieties of the fatty acid and acid copolymer are at least partially neutralized with cations of magnesium, calcium, zinc, or a combination thereof.

Abstract: Hot-melt pressure-sensitive adhesive (HMPSA) composition is disclosed comprising: a) 25 to 50% of a blend of SBS and SB styrene block copolymers; b) 45 to 75% of compatible tackifying resins having a softening temperature of between 80 to 150° C.; and c) 0.5 to 5.5% of fatty acids, the hydrocarbon chain of which comprises 10 to 22 carbon atoms. Also disclosed are a multilayer system comprising an HMPSA layer, a printable support layer and an adjacent protective layer. A self-adhesive label and process for recycling a labeled article with debonding of said label by immersing the article in a hot basic aqueous solution are also disclosed.

Abstract: Disclosed is a composition comprising or produced from poly(trimethylene terephthalate), an ionomer of an ethylene acid copolymer comprising copolymerized units of at least one ?,?-ethylenically unsaturated carboxylic acid comonomer, a nucleating agent and optionally an ethylene ester copolymer. Also disclosed are articles prepared from the composition. Also disclosed is a process for preparing the compositions, including methods for controlling the melt viscosity and strain hardening of the compositions.

Abstract: The invention provides a golf ball material which is a resin mixture composed of (a) an olefin-unsaturated carboxylic acid copolymer and/or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 120,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 4.3 to 6.6, or a metal neutralization product thereof, (b) an olefin-unsaturated carboxylic acid copolymer and/or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 120,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 6.8 to 9.

Abstract: The invention provides a golf ball material which is a resin mixture composed of (a) an olefin-methacrylic acid copolymer and/or an olefin-methacrylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 120,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 4.0 to 7.0, or a metal neutralization product thereof, (b) an olefin-acrylic acid copolymer and/or an olefin-acrylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 150,000 to 220,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 5.5 to 8.5, or a metal neutralization product thereof, (c) an organic acid or a metal salt thereof, and (d) a basic inorganic metal compound for neutralizing at least 70 mol % of acid groups in components (a) to (c), which resin mixture has a Shore D hardness of from 30 to 60.

Abstract: A high wear-resistant nylon composite material for rollers of an airport freight vehicle and a preparation method thereof are disclosed. The composite material includes the following materials as the main components, 60-80 wt % of nylon 6 or nylon 66 or a mixture of nylon 6 and nylon 66, 5-13 wt % of glass beads, 6-14 wt % of glass fiber powder, 5-7 wt % of lubricating anti-wear agent. The composite material further includes the following materials as the auxiliary materials, 3-5 wt % of graft type toughening modifying agent, 0.3-1 wt % of antioxidant, 0.2-0.3 wt % of lubricating dispersant and 0.2-0.5 wt % of nucleating agent. The composite has characteristics such as high wear resistance, high heat resistance, relatively high toughness and skid resistance.