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. 19, 2001
Filed:
Aug. 10, 1999
Akio Toyoda, Chiba, JP;
Kousuke Arai, Chiba, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
The present invention provides a lactic acid-based polymer laminated product which is little liable to leakage of lactide during molding or storage of the molded product and can degrade at a raised rate and a molded product made of such a laminated product. Disclosed are a novel lactic acid-based polymer laminated product comprising a degradation accelerator barrier layer (II) made of a lactic acid-based polymer (B) having a lactide content of not more than 0.1% by weight laminated on one or both surfaces of a base layer (I) made of a lactic acid-based polymer (A) comprising a degradation accelerator made of lactide and/or organic acid in an amount of from 0.3 to 7% by weight, wherein the ratio of the barrier layer thickness to the base layer thickness is from 0.02 to 1 based on that of the base layer, and a molded product of the laminated product.