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. 27, 1995
Filed:
May. 23, 1994
Applicant:
Inventors:
William E Slack, Moundsville, WV (US);
Robert P Yeater, Moundsville, WV (US);
Robson Mafoti, Pittsburgh, PA (US);
Josef Sanders, Leverkusen, DE;
Assignee:
Miles Inc., Pittsburgh, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 60 ; 528 61 ; 528 65 ; 528 75 ; 528 76 ; 528 84 ; 528 85 ; 521159 ; 521160 ; 521163 ;
Abstract
Storage stable, liquid prepolymers of diphenylmethane diisocyanate containing urea and/or biuret groups are prepared by reacting an aminocrotonate with a mixture of isocyanates having a specified diphenylmethane diisocyanate isomer content. These prepolymers have isocyanate group contents of from about 5 to about 30%.