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:
Feb. 14, 1995
Filed:
Apr. 02, 1993
Applicant:
Inventors:
Henry G Schirmer, Spartanburg, SC (US);
Allen C Williams, Jr, Spartanburg, SC (US);
Martin Nelson, Greer, SC (US);
Assignee:
W.R. Grace & Co.-Conn., Duncan, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428517 ; 428336 ; 428516 ; 525240 ;
Abstract
A composition of matter comprises a blend of propylene homopolymer or copolymer, and ethylene copolymer. Ethylene vinyl acetate copolymer (EVA), very low density polyethylene (VLDPE), and ethylene alpha olefin copolymer are preferred ethylene copolymers. VLDPE with a high molecular weight (low melt index), and with a broad molecular weight distribution (high flow rate ratio) is preferred. A multilayer film comprises a first layer comprising a propylene homopolymer or copolymer, or blend, and at least one outer sealable layer.