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:
Apr. 30, 1991
Filed:
Apr. 07, 1989
Applicant:
Inventor:
Henry G Schirmer, Spartanburg, SC (US);
Assignee:
W. R. Grace & Co., Duncan, SC (US);
Primary Examiner:
Int. Cl.
CPC ...
C09J / ;
U.S. Cl.
CPC ...
428349 ; 428 367 ; 428518 ; 428520 ; 428913 ;
Abstract
A laminate useful in thermoforming and VSP processes comprises a surface film, barrier film, and sealant film bonded together by, for example, corona bonding. At least one of the films comprises a hot blown high molecular weight polymeric material. Preferably, at least one of the films is cross-linked by irradiation or chemical cross-linking.