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. 26, 1985
Filed:
Dec. 15, 1982
Johnnie J Walters, Greer, SC (US);
Philip T Voso, Tryon, NC (US);
Karl N Caldwell, Norcross, GA (US);
W. R. Grace & Co., Cryovac Div., Duncan, SC (US);
Abstract
A heat sealing layer is provided for multiply tubular film preferably of the type having an inner shrink layer of an irradiatively cross-linked ethylene vinyl acetate copolymer, a core barrier layer of vinylidene chloride-vinyl chloride copolymer, and an outer abuse layer of an ethylene vinyl acetate copolymer, the sealing layer being melt bonded onto the shrink layer and being composed of a propylene ethylene random copolymer. Heat seals formed in making bags from the improved film demonstrate enhanced high temperature strength and grease resistance. An associated method for making the tubular film is also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile