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:
May. 19, 1992
Filed:
Jun. 19, 1990
Applicant:
Inventors:
Jay-Lin Jane, Ames, IA (US);
Alan W Schwabacher, Ames, IA (US);
Sam N Ramrattan, Ames, IA (US);
Jeffrey A Moore, Ames, IA (US);
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08F / ;
U.S. Cl.
CPC ...
524 47 ; 525191 ; 525240 ; 525252 ;
Abstract
A composition is disclosed for a biodegradable, blendable plastic having improved tensile strength. It consists of starch, oxidized polyethylene, and polyethylene. The starch is included in an amount up to 50% by weight, the oxidized polyethylene up to 15% by weight, and the remaining amount is polyethylene. It is preferred that high molecular weight oxidized polyethylene be used and in the method of producing the composition, it is preferred that the blending of the components occur at a temperature range of 110.degree. C. to 200.degree. C.