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US 5,965,639 AGranted
Flame retardant resin composition
AssigneeToray Industries, Inc.
InventorsKouji Yamauchi, Hideo Matsuoka, Hideki Matsumoto, Toshihide Inoue
Life of this patent
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AssigneeToray Industries, Inc.
InventorsKouji Yamauchi, Hideo Matsuoka, Hideki Matsumoto, Toshihide Inoue
Estimating the term…
A flame retardant resin composition including 100 parts by weight of the following component (A) or (B) and 0.01 to 30 parts by weight of red phosphorus (C) shows excellent flame retardancy even if the molding obtained from it is thin, and is excellent in mechanical properties, wet heat resistance and electric properties, being suitable for mechanical parts, electric and electronic parts, automobile parts, and housings and other parts of office automation apparatuses and household electric appliances. Components (A) and (B) are as follows: (A) (a1) 67 to 99.99 wt % (based on the total weight of (a1) and (a2)) of a thermoplastic resin other than polyethylene terephthalate and ethylene terephthalate copolymers and (A2) 33 to 0.01 wt % (based on the total weight of (a1) and (a2)) of polyethylene terephthalate and/or an ethylene terephthalate copolymer (B) a thermoplastic resin consisting of the following structural components (I), (II), (III) and (IV): ##STR1## where R1, R2 and R3 stand for, respectively independently, a divalent aromatic residue.
A flame retardant resin composition comprising 100 parts by weight of a thermoplastic resin consisting of the following structural components (I), (II), (III) and (IV) and 0.1 to 10 parts by weight of red phosphorus (C) ##STR17## where R1, R2 and R3 stand for, respectively independently, a divalent aromatic residue.
A molding comprising a flame retardant resin composition consisting of 100 parts by weight of the following component (A) (a1) 67 to 99.99 wt % (based on the total weight of (a1) and (a2)) of a thermoplastic resin other than polyethylene terephthalate and ethylene terephthalate copolymers and (a2) 33 to 0.01 wt % (based on the total weight of (a1) and (a2)) of polyethylene terephthalate and/or an ethylene terephthalate copolymer, or (B) a thermoplastic resin consisting of the following structural components (I), (II), (III) and (IV):
A process for producing a flame retardant resin composition comprising the steps of melt-kneading a portion of 100 parts by weight of the following component (A) (a1) 67 to 99.99 wt % (based on the total weight of (a1) and (a2)) of a thermoplastic resin other than polyethylene terephthalate and ethylene terephthalate copolymers and (a2) 33 to 0.01 wt % (based on the total weight of (a1) and (a2)) of polyethylene terephthalate and/or an ethylene terephthalate copolymer, or (B) a thermoplastic resin consisting of the following structural components (I), (II), (III) and (IV):
Dependencies are inferred from the claim text.