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. 10, 2009
Filed:
Oct. 27, 2006
Hiroyuki Sato, Fukushima-Ken, JP;
Fumio Akutsu, Fukushima-Ken, JP;
Fuminori Kobayashi, Fukushima-Ken, JP;
Yuki Hokari, Fukushima-Ken, JP;
Hiroyuki Sato, Fukushima-Ken, JP;
Fumio Akutsu, Fukushima-Ken, JP;
Fuminori Kobayashi, Fukushima-Ken, JP;
Yuki Hokari, Fukushima-Ken, JP;
Kureha Corporation, Tokyo, JP;
Abstract
For producing an aliphatic polyester resin composition containing a thermal stabilizer and a carboxyl group-capping agent, the aliphatic polyester resin is first mixed in a hot-melt state with the thermal stabilizer and then mixed in a hot-melt state with the carboxyl group-capping agent. As a result thereof, the resultant aliphatic polyester resin composition is provided with better moisture resistance and noticeably improved heat resistance (less coloring) than in the case where these additives are simultaneously added to effect the hot-melt mixing.