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:
Oct. 10, 1989
Filed:
Feb. 09, 1988
Applicant:
Inventors:
Assignee:
Charbonnages De France, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ;
U.S. Cl.
CPC ...
523128 ; 524 35 ; 524 40 ; 524 48 ; 524 52 ; 524 56 ; 524 58 ;
Abstract
A substance based on polyurethane from which biodegradable materials can be obtained by rolling comprises, as well as a polyurethane resin serving as its essential constituent, a carbohydrate, at least one second thermoplastic polymer which is miscible in the molten state with the polyurethane resin and/or at least one third biodegradable polymer chosen from among biodegradable aliphatic polyesters, preferably of the same nature as the polyurethane resin used.