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:
Apr. 03, 2001
Filed:
Apr. 14, 2000
Applicant:
Inventors:
Assignee:
Kansas State University Research Foundation, Manhattan, KS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/810 ; C08G 1/828 ; C08G 6/306 ;
U.S. Cl.
CPC ...
C08G 1/810 ; C08G 1/828 ; C08G 6/306 ;
Abstract
Biodegradable polymers for use in forming high strength, degradable plastics and methods of forming the polymers are provided. Broadly, the methods comprise forming and heating a blended mixture of polylactic acid, a starch, and a linkage group for joining or copolymerizing the polylactic acid and starch. Preferred linkage groups comprise an isocyanate moiety, with diphenylmethylene diisocyanate, hexamethylene diisocyanate, and isophorone diisocyanate. The reacted mixture can then be formed into the desired final product which has high tensile strength, modulus of elasticity, percent elongation, and thermal stability.