摘要:
A filled polyolefin composition is described based upon a polyolefin resin filled with a mechanico-chemically modified filler. The filler, which may be the usual filler material, is modified by comminution, by mechanically exposing fresh surfaces of the original filler particles in the presence of a polymer of a vinyl monomer. The vinyl monomer should have at least one polar group capable of bonding with the freshly exposed surfaces of filler material as they are formed and exposed during the mechanical operation. The process for the production of the modified filler is included.
摘要:
There is disclosed a polycarbonate composition which comprises having a melt flow rate of 5 to 50 g/10 min and composed of:(a) 30 to 65 parts by weight of a thermoplastic aromatic polycarbonate,(b) 70 to 35 parts by weight of glass fibers with an average diameter of 3 to 15 .mu.m, and(c) 0.01 to 15 parts by weight of at least one component selected from the group consisting of (c-1) to (c-3) shown below formulated therein based on 100 parts by weight of the total amount of (a) and (b):(c-1) 0.3 to 10 parts by weight of a brominated polystyrene with an average particle size of 0.1 to 50 .mu.m;(c-2) 0.3 to 10 parts by weight of zinc sulfide with an average particle size of 0.1 to 50 .mu.m; and(c-3) 0.01 to 5 parts by weight of a melamine-cyanuric acid adduct with an average particle size of 0.1 to 50 .mu.m.
摘要:
A modified propylene polymer containing mixed polymer composition characterized by high tensile strength, high elongation and good bending stiffness which consists essentially of:A. a crystalline polypropyleneB. a block copolymer wherein a propylene-ethylene random copolymer is chain-terminated onto said crystalline polypropyleneC. a crystalline ethylene-propylene random copolymer having an ethylene content of more than about 90% by weight,The improvement which comprises admixing with said modified propylene polymer at least 30% by weight of an inorganic filler having an average particle size of less than 20.mu. in diameter.
摘要:
A self-extinguishing resin composition comprises 55 - 25 wt. % of a thermoplastic resin and 45 - 75 wt. % of magnesium hydroxide, wherein said magnesium hydroxide has a specific surface area of less than or equal to 45 m.sup.2 /g. Such a composition is not subject to formation of a silver-colored streak upon being extrusion- or injection-molded.
摘要:
Disclosed is an electrode for secondary battery, which comprises lithium or an alkali metal composed mainly of lithium doped as the active substance in a carrier composed of a mixture of a carbonaceous material satisfying the following conditions (A) and an organic polymer having ion conductivity of lithium.(A) a carbonaceous material with a hydrogen/carbon (H/C) atomic ratio of less than 0.15, a spacing (d.sub.002) of the (002) plane according to the X-ray wide angle diffraction method of 3.37 to 3.75 .ANG. and a crystallite size in the c-axis direction (Lc) of 5 .ANG. or more.
摘要:
There is disclosed a secondary battery having a negative electrode composed of an active substance and a carrier carrying the active substance, which comprises(1) the active substance is lithium or an alkali metal mainly composed of lithium,(2) the carrier is a mixture composed of(a) a carbonaceous material having(i) an atomic ratio of hydrogen/carbon of less than 0.15 and(ii) a spacing of (002) planes (d.sub.002) as determined by X-ray wide angle diffraction of 3.37 .ANG. or more and a crystallite size in the direction of c axis of 150 .ANG. or less, and(b) a metal capable of forming an alloy with the active substance and/or an alloy with the active substance.
摘要:
A semiconductive resin composition used in power cables having excellent properties is disclosed, which comprises 100 parts by weight of a base resin of at least one member selected from the group consisting of a low-density polyethylene, an ethylene/vinyl acetate copolymer having a vinyl acetate content of 25% by weight or less and an ethylene/(meth)acrylate copolymer having a (meth)acrylate content of 20% by weight or less, and 6 to 25 parts by weight of electroconductive carbon black having a DBP-absorption number of 220 to 340 ml/100 g and an impurity metal residue of 0.2% by weight or less.
摘要:
An inorganic filler containing propylene polymer composition which comprises 25 to 90% by weight of component (A) and 75 to 10% by weight of component (B):(A) at least one member selected from the group consisting of(a) a crystalline propylene copolymer composed of propylene and one or more other .alpha.-olefins;(b) a composition prepared by blending the copolymer (a) with a synthetic rubber and/or crystalline polypropylene; and(c) a composition prepared by blending a crystalline polypropylene with a synthetic rubber, wherein(1) the amount of xylene extractable soluble component at 23.degree. C. is 10 to 50% by weight, and(2) the propylene content in the extractable soluble component is 30% by weight or more,(B) an inorganic filler having an average particle size of 200.mu. or less, measured by light transmission in a liquid-phase sedimentation system.
摘要:
A high impact olefinic polymer composition comprising a continuous matrix of a thermoplastic olefinic polymer, a dispersed phase of an impact absorbing polymer or its composite dispersed in the matrix, and an inorganic filler having a smaller particle diameter than the dispersed phase and filled in said polymer or its composite constituting the dispersed phase.
摘要:
An electrode for a secondary battery, comprising a net or sheet made of a metal having laminated thereon a mixture comprising 85 to 99.9% by weight of a carbonaceous material and 0.1 to 15% by weight of an elastomer. The carbonaceous material has a hydrogen/carbon (H/C) atomic ratio of less than 0.15, a spacing (d.sub.002) of the (002) plane according to an X-ray wide angle diffraction method of 3.37 .ANG. to 3.75 .ANG., a volume average particle size of 0.5 .mu.m and a total fine pore volume of 1.5.times.10.sup.-3 ml/g or more. Lithium or a material substantially comprising lithium is carried on the carbonaceous material. The electrode has a thickness of 5 to 500 .mu.m. The resultant electrode has an high energy density, and has the requisite flexibility to obtain a coil-shaped electrode.