Abstract:
A thermoplastic resin composition is obtained by adding, to 100 parts by weight of a resin composition comprising polycarbonate (1)/styrenic resin (2) = 50/50 to 95/5 (% by weight), 0.1 to 20 parts by weight of a compatibilizing agent (3), if necessary together with a polyalkylene arylate resin (4) and/or a polyphenylene ether (5). Component (2) includes rubber-modified polystyrenic resins. The domains of component (2) dispersed in the matrix composed of component (1) are surrounded by component (3). Component (3) is a block copolymer (C) comprising a polystyrene block (A) and a terminally located polybutadiene block (B) with the double bond originating from butadiene being epoxidized. By adding an organophosphorus compound as flame retardant (6) and a fluororesin (7) as a flame retardant auxiliary (7), a halogen-free flame-retarded thermoplastic resin composition can be obtained. A polycarbonate-styrenic resin polymer blend improves flow characteristics and impact strength.
Abstract:
A thermoplastic resin composition is obtained by adding, to 100 parts by weight of a resin composition comprising polycarbonate (1)/styrenic resin (2) = 50/50 to 95/5 (% by weight), 0.1 to 20 parts by weight of a compatibilizing agent (3), if necessary together with a polyalkylene arylate resin (4) and/or a polyphenylene ether (5). Component (2) includes rubber-modified polystyrenic resins. The domains of component (2) dispersed in the matrix composed of component (1) are surrounded by component (3). Component (3) is a block copolymer (C) comprising a polystyrene block (A) and a terminally located polybutadiene block (B) with the double bond originating from butadiene being epoxidized. By adding an organophosphorus compound as flame retardant (6) and a fluororesin (7) as a flame retardant auxiliary (7), a halogen-free flame-retarded thermoplastic resin composition can be obtained. A polycarbonate-styrenic resin polymer blend improves flow characteristics and impact strength.
Abstract:
A thermoplastic resin composition is obtained by adding, to 100 parts by weight of a resin composition comprising polycarbonate (1)/styrenic resin (2) = 50/50 to 95/5 (% by weight), 0.1 to 20 parts by weight of a compatibilizing agent (3), if necessary together with a polyalkylene arylate resin (4) and/or a polyphenylene ether (5). Component (2) includes rubber-modified polystyrenic resins. The domains of component (2) dispersed in the matrix composed of component (1) are surrounded by component (3). Component (3) is a block copolymer (C) comprising a polystyrene block (A) and a terminally located polybutadiene block (B) with the double bond originating from butadiene being epoxidized. By adding an organophosphorus compound as flame retardant (6) and a fluororesin (7) as a flame retardant auxiliary (7), a halogen-free flame-retarded thermoplastic resin composition can be obtained. A polycarbonate-styrenic resin polymer blend improves flow characteristics and impact strength.
Abstract:
A thermoplastic resin composition can be obtained by adding about 0.1 to 20 parts by weight of a diene-series block copolymer (2) to 100 parts by weight of a resin composition containing a polycarbonate-series resin (1) as a basic component of which the proportion of terminal hydroxy groups relative to the whole of the terminals is 1 mole% or above (about 5 to 40 mole%). The polycarbonate-series resin base may further comprise a thermoplastic resin composition (3) such as a rubber-modified styrenic resin. The block copolymer component (2) includes an epoxy-modified block copolymer, etc. When added an organophosphorus compound as a flame retardant (4), or a fluorine-containing resin as a flame-retartant auxiliary (5), a halogen-free flame-retardant thermoplastic resin composition can be obtained. A thermoplastic resin with an improved flowability and impact strength can be obtained by modifying a polymer blend of the polycarbonate-series resin and the styrenic-series resin in quality.
Abstract:
A thermoplastic resin composition is obtained by adding, to 100 parts by weight of a resin composition comprising polycarbonate (1)/styrenic resin (2) = 50/50 to 95/5 (% by weight), 0.1 to 20 parts by weight of a compatibilizing agent (3), if necessary together with a polyalkylene arylate resin (4) and/or a polyphenylene ether (5). Component (2) includes rubber-modified polystyrenic resins. The domains of component (2) dispersed in the matrix composed of component (1) are surrounded by component (3). Component (3) is a block copolymer (C) comprising a polystyrene block (A) and a terminally located polybutadiene block (B) with the double bond originating from butadiene being epoxidized. By adding an organophosphorus compound as flame retardant (6) and a fluororesin (7) as a flame retardant auxiliary (7), a halogen-free flame-retarded thermoplastic resin composition can be obtained. A polycarbonate-styrenic resin polymer blend improves flow characteristics and impact strength.
Abstract:
PROBLEM TO BE SOLVED: To conquer the stickiness of epoxidized thermoplastic polymers and the troublesome handling by blocking nature or the like and to provide epoxidized thermoplastic polymers excellent in workability and processes for their production. SOLUTION: An epoxidized granular thermoplastic polymer comprises a shell-like surface layer insoluble in toluene at 25°C formed on the polymer. The process for the production of the epoxidized granular thermoplastic polymer comprises: the first step of epoxidizing a granular thermoplastic polymer in a water medium in the presence of an epoxidizing agent or the epoxidizing agent and a solvent for accelerating an epoxidation reaction and a phosphoric acid series compound; the second step of the washing with water, or the neutralization and washing with water of the epoxidized granular thermoplastic polymer; and the third step, if necessary, of removing the solvent for accelerating epoxidation reaction which may be used in the first step. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve a stability of a melt molding process, a gas and odor generation and a bleeding of a stabilizer or an epoxy compound caused by a hot storage of a molded article. SOLUTION: A cycloaliphatic epoxy compound having a lactone chain is blended to a thermoplastic polyester resin.
Abstract:
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition which has improved mechanical characteristics such as toughness and impact strength, causes little amount of evolved gas when melt kneaded and molded, and possesses excellent thermal resistance. SOLUTION: The thermtoplastic resin composition with toughness has as the essential components (A) a polyarylene sulfide with a functional group having a reactivity with an epoxy group; (B) an epoxidated, aromatic vinyl/ conjugated diene-based copolymer; and (C) a hydrogenated, diene-based block copolymer.
Abstract:
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition which shows an excellent balance among the high-frequency welder suitability, the mold processibility, the appearance of a sheet molded product, the tearing strength, the tinting, etc., without causing any enviromnental pollution, and a sheet molded product. SOLUTION: A thermoplastic resin composition is prepared by compounding, against 100 pts.wt. (A+B) resin composition containing (A) from 99 to 1 wt.% thermoplastic olefin resin and (B) from 1 to 99 wt.% acrylonitrile/styrene/alkyl acrylate copolymer, (C) from 1 to 30 pts.wt. epoxidized diene block copolymer and (D) from 1 to 30 pts.wt. glycidyl group-containing copolymer comprising a glycidyl ester of an α-olefin and an α,β-unsaturated acid. A sheet molded product is obtained using this.
Abstract:
PROBLEM TO BE SOLVED: To modify a polyblend of a polycarbonate resin and a styrene resin to obtain a thermoplastic resin compsn. improved in flowability and impact strength. SOLUTION: 100 pts.wt. polyblend comprising 50-95 wt.% polycarbonate resin (1) and 50-5 wt.% styrene resin (2) is compounded with 0.1-20 pts.wt. compatibilizer (3) and, if necessary, with a polyalkylene arylate resin (4) and a polyphenylene ether resin (5) to obtain the objective compsn. Ingredient (2) includes a rubbermodified polystyrene resin. The domain 2 of ingredient (2) dispersed in the matrix 1 of ingredient (1) is surrounded by ingredient (3). Ingredient (3) is a block copolymer (C) comprising a polystyrene block (A) and polybutadiene blocks (B) present at the molecular ends, and the double bonds of the polybutadiene blocks have been epoxidized. The addition of an organophosphorus compd. (6) as a flame retardant and a fluororesin (7) as an auxiliary flame retardant to the above-obtd. compsn. gives a nonhalogen flame-retardant thermoplastic resin compsn.