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. 16, 1999
Filed:
Apr. 03, 1997
Applicant:
Inventors:
Stephen P McCarthy, Tyngsboro, MA (US);
Richard A Gross, Chelmsford, MA (US);
Wenguang Ma, Lowell, MA (US);
Assignee:
University of Massachusetts, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; B29D / ;
U.S. Cl.
CPC ...
525437 ; 525450 ; 604212 ; 604370 ; 604403 ; 604408 ; 428 352 ; 428 357 ; 428 3692 ;
Abstract
Biodegradable blends including a first, polylactic acid-based polymer or copolymer, and a second polymer or copolymer including one or more polyesters, e.g., an aliphatic polyester or a polyester of one aliphatic C.sub.2 to C.sub.20 diacid or of a combination of two more different aliphatic C.sub.2 to C.sub.20 diacids, wherein the first and second polymers are present in a ratio of 9:1 to 1:9, are described.