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:
Mar. 09, 1999
Filed:
May. 28, 1996
Applicant:
Inventors:
David John St Clair, Houston, TX (US);
James Robert Erickson, Katy, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525 89 ; 525 / ; 525 98 ; 525 99 ; 525314 ;
Abstract
A pressure sensitive structural adhesive or sealant composition comprises a) a polymer system containing from 95 to 15 percent by weight of a telechelic polymer such as a polyhydroxylated diene block polymer and from 5 to 85 percent by weight of a heterotelechelic polymer such as an epoxidized monohydroxylated diene block polymer, and b) a dual curing system wherein one element such as a polyisocyanate cures the telechelic polymer at ambient temperature, and the other element such as an amino resin cures the heterotelechelic polymer.