The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2000
Filed:
Sep. 09, 1999
Hirota Nagano, Ohtsu, JP;
Toshio Hiramatsu, Ohtsu, JP;
Hitoshi Ueno, Ohtsu, JP;
Tsunehiro Ohshima, Ohtsu, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
A polyester elastomer composition comprising a polyester block copolymer and a compound having, in one molecule, not less than two functional groups capable of reacting with a terminal group of the polyester block copolymer, and showing (A) a weight loss (volatility) at 150.degree. C., 2 hours of not more than 0.4% and (B) a gelation degree (gel fraction) at 250.degree. C., 4 hours of not more than 50%; and a polyester elastomer composition comprising a polyester block copolymer, a compound having, in one molecule, not less than two functional groups capable of reacting with a terminal group of the polyester block copolymer and a chain extender heating loss percentage satisfying the formula: (W1-W2)/W1.ltoreq.0.1, and a stabilizer comprising a tertiary amine as a part of its skeleton. From such composition, an elastomer molded product having fine mechanical strength, heat resistance and resistance to hydrolysis, which shows less volatility during heating and less gel and bleed out, can be obtained.