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:
Mar. 29, 1994
Filed:
Mar. 27, 1992
Lawrence R Norpoth, Simpsonville, SC (US);
Donna S Bentley, Simpsonville, SC (US);
W. R. Grace & Co.-Conn., Duncan, SC (US);
Abstract
Multiple layer cook-in films are disclosed from which packages such as bags or casings can be made. The films have a first food contact layer with a core layer adhered thereto which includes a blend of a polymeric material having a high molecular weight and a fractional melt index and an ethylene alpha-olefin copolymer. The film further includes an abuse layer which has, at least, a polymeric material having a high molecular weight and a fractional melt index. Improved hold cold seal strength fresh and over time, improved orientation processing and lower shrink temperatures are obtained with the present core layer. The abuse layer and core layer adds to the processability of the material and improves optics.