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. 23, 1992
Filed:
Sep. 26, 1989
Applicant:
Inventors:
Dudley J Primeaux, II, Elgin, TX (US);
Robert A Grigsby, Jr, Georgetown, TX (US);
Doris M Rice, Austin, TX (US);
Assignee:
Texaco Chemical Company, White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 60 ; 528 64 ; 528 68 ; 528 76 ; 528 77 ;
Abstract
A pourable and/or sprayable polyurea elastomer is disclosed. The elastomer includes an isocyanate, an amine terminated polyoxyalkylene polyol, and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high molecular weight polyoxyalkyleneamine or a combination thereof. The chain extender includes at least di(methylthio)-toluene diamine. A method for improving the flowability of a polyurea elastomer, thereby permitting the elastomer to be sprayed or, optionally, poured, is also disclosed.