Polyester resin composition comprising butylene terephthalate, ethylene terephthalate, and a polyalkylene glycol derivative
AssigneeToyo Boseki Kabushiki Kaisha
InventorsNori Yoshihara, Yukio Gotoh
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Abstract
There is disclosed a polyester resin composition comprising: (a) 50 to 70 parts by weight of a polyester resin composed mainly of a repeating unit of butylene terephthalate; (b) 30 to 50 parts by weight of a polyester resin composed mainly of a repeating unit of ethylene terephthalate; (c) 0.1 to 10 parts by weight of a polyalkylene glycol derivative having at least one end group of carboxylate and alkyl ether, per 100 parts by the total weight of the polyester resins (a) and (b); and if necessary or required, (d) not more than 120 parts by weight of an inorganic reinforcing agent, per 100 parts by the total weight of the polyester resins (a) and (b).
Claims7
A polyester resin composition comprising:
- (a) 55 to 70 parts by weight of a polyester resin composed mainly of a repeating unit of butylene terephthalate;
- (b) 30 to 45 parts by weight of a polyester resin composed mainly of a repeating unit of ethylene terephthalate;
- and
- (c) 0.1 to 10 parts by weight of a polyalkylene glycol derivative having at least one end group of carboxylate and alkyl ether, per 100 parts by the total weight of the polyester resins (a) and (b).
A lamp reflector made of a polyester resin composition comprising:
- (a) 55 to 70 parts by weight of a polyester resin composed mainly of a repeating unit of butylene terephthalate;
- (b) 30 to 45 parts by weight of a polyester resin composed mainly of a repeating unit of ethylene terephthalate;
- (c) 0.1 to 10 parts by weight of a polyalkylene glycol derivative having at least one end group of carboxylate and alkyl ether, per 100 parts by the total weight of the polyester resins (a) and (b);
- and
- (d) 10 to 40 parts by weight of talc, per 100 parts by the total weight of the polyester resins (a) and (b).
Heating appliance parts made of a polyester resin composition comprising:
- (a) 55 to 70 parts by weight of a polyester resin composed mainly of a repeating unit of butylene terephthalate;
- (b) 30 to 45 parts by weight of a polyester resin composed mainly of a repeating unit of ethylene terephthalate;
- (c) 0.1 to 10 parts by weight of a polyalkylene glycol derivative having at least one end group of carboxylate and alkyl ether, per 100 parts by the total weight of the polyester resins (a) and (b);
- and
- (d) 0.5 to 20 parts by weight of talc, per 100 parts by the total weight of the polyester resins (a) and (b).
Dependencies are inferred from the claim text.