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. 03, 1987
Filed:
Apr. 29, 1985
Applicant:
Inventors:
Daniel J Ferguson, Spartanburg, SC (US);
Henry G Schirmer, Spartanburg, SC (US);
Walter B Mueller, Inman, SC (US);
Assignee:
W. R. Grace & Co., Cryovac Div., Duncan, SC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 36 ; 428 35 ; 428516 ; 428518 ; 428520 ; 428910 ;
Abstract
Improved shrink, toughness and barrier properties are achieved by a multi-layer, thermoplastic, shrink film having a substrate layer of very low density polyethylene and a gas barrier layer of vinylidene chloride copolymer or ethylene-vinyl-alcohol. The film is particularly useful for making bags for packaging large cuts of fresh red meat.