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:
Sep. 03, 1985
Filed:
May. 23, 1984
Applicant:
Inventor:
George L Hoh, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ; B32B / ;
U.S. Cl.
CPC ...
428500 ; 428516 ; 428515 ; 428511 ; 428461 ;
Abstract
Blends of (a) 80-93 weight percent of an ethylene/acid ionomer, and (b) 7-20 weight percent of a propylene/.alpha.-olefin copolymer are used to prepare peelable seals having nearly constant and predictable peel strength over an extended heat seal temperature range. Some of the seals so produced also show stress whitening.