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. 22, 1977
Filed:
Mar. 01, 1976
Warren K Cline, Brevard, NC (US);
Olin Corporation, Pisgah Forest, NC (US);
Abstract
Laminates of uncoated regenerated cellulose film and aluminum foil comprising the combination in which the cellulose film is softened or plasticized with a lower alkylene polyalkylene glycol and bonded with the aluminum foil using a polyethylene phthalate ester-urethane adhesive. The resulting laminate structure possesses superior resistance to delamination when compared with similar laminates of coated regenerated cellulose film and aluminum foil or such laminates in which the cellulosic film is softened with conventional monomers, such as ethylene glycol, propylene glycol or glycerin. Preferred softeners for use in the combination are polyethylene glycols or polypropylene glycols having a molecular weight ranging from 200 to 800.