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:
Aug. 24, 2004
Filed:
Dec. 29, 1999
Applicant:
Inventors:
Karl W. Haider, McKees Rocks, PA (US);
Jack C. Chan, Coraopolis, PA (US);
E. Haakan Jonsson, Fairfield, OH (US);
Uli W. Franz, Coraopolis, PA (US);
Ronald P. Taylor, Moon Township, PA (US);
Assignee:
Bayer Polymers LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/862 ; C08G 1/810 ; C08G 1/832 ; C08G 1/875 ;
U.S. Cl.
CPC ...
C08G 1/862 ; C08G 1/810 ; C08G 1/832 ; C08G 1/875 ;
Abstract
A hydrophobic polyurethane elastomer is disclosed comprising an isocyanate terminated prepolymer having an isocyanate content ranging from 4 to 12 wt. % NCO comprising the reaction product of: i) an OH terminated homopolymer of butadiene having molecular weight ranging from 1000 to 4000 and an OH functionality of from 1.9 to 2.1; ii) an aliphatic or cycloaliphatic diisocyanate; and a diol chain extender having a molecular weight ranging from 62 to 400.