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:
Sep. 28, 1999
Filed:
Jun. 10, 1997
Applicant:
Inventors:
Ravi Ram Vedula, North Ridgeville, OH (US);
Stanley Raymond Goscewski, Lorain, OH (US);
Assignee:
The B.F. Goodrich Company, Richfield, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 76 ; 528 79 ; 528906 ; 428364 ; 4284231 ; 152151 ; 473351 ;
Abstract
A thermoplastic polyether polyurethane having good rebound resilience and low hysteresis properties is prepared by the reaction of a diisocyanate with a hydroxyl terminated polyether having a weight average molecular weight of at least 1,400 and a glycol chain extender. The polyether contains alkylene oxide repeat units having from 2 to 6 carbon atoms and the chain extender glycol has from 2 to 16 carbon atoms. The amount of the chain extender glycol is from about 0.25 to about 2 moles per mole of the polyether.