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:
Jun. 17, 1986
Filed:
Mar. 04, 1985
Applicant:
Inventors:
Christopher J Nalepa, Baton Rouge, LA (US);
Paul F Ranken, Baton Rouge, LA (US);
Karl E Wiegand, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; B29B / ;
U.S. Cl.
CPC ...
528 64 ; 2643281 ;
Abstract
Polyurethanes and a process for their preparation with aromatic diamines having an aromatic ring, one of said at least one aromatic ring having thereon at least two alkylthio substituents and at least one amino substituent. An isocyanate prepolymer may be combined with a diamine chain extender of the invention and cured at suitable processing temperatures to form elastomers with good physical properties.