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:
Jul. 14, 1998
Filed:
May. 28, 1993
Applicant:
Inventors:
Masanobu Ajioka, Kanagawa-ken, JP;
Katashi Enomoto, Fukuoka-ken, JP;
Akihiro Yamaguchi, Kanagawa-ken, JP;
Kazuhiko Suzuki, Kanagawa-ken, JP;
Assignee:
Mitsui Chemicals, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62D / ;
U.S. Cl.
CPC ...
588218 ; 588204 ; 588242 ; 562593 ; 204520 ;
Abstract
A process for decomposing a thermoplastic polymer composition which comprises a polyhydroxycarboxylic acid base polymer as a primary component in an alkaline solution, recovering hydroxycarboxylic acid from the solution by electrodialysis or acid-precipitation and using the recovered hydroxycarboxylic acid for a polymer material, when desired, is provided.