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:
Jun. 29, 1999
Filed:
Jul. 17, 1997
Shoji Obuchi, Kanagawa-ken, JP;
Takayuki Watanabe, Kanagawa-ken, JP;
Yasuhiro Kitahara, Kanagawa-ken, JP;
Tomoyuki Nakata, Kanagawa-ken, JP;
Kazuhiko Suzuki, Kanagawa-ken, JP;
Masanobu Ajioka, Kanagawa-ken, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function: 1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle, 2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and 3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.