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:
Jul. 22, 1986
Filed:
May. 06, 1985
Applicant:
Inventors:
Fredric D Metcalf, Rootstown, OH (US);
John G Sommer, Hudson, OH (US);
Assignee:
GenCorp Inc., Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 57 ; 428141 ; 428147 ; 4284747 ; 428519 ;
Abstract
Cured rubbery carbon black reinforced EPDM roofing membranes are joined at their primed seams by a seaming tape comprising a carbon black reinforced compounded lightly cured blend of a butyl rubber and a polyisobutylene. The tape can exhibit a peel strength of at least about 2.5 pli at about 158.degree. F.