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:
Nov. 28, 1989
Filed:
Nov. 21, 1988
Nippon Gohsei Kaguku Kogyo Kabushikis Kaisha, Osaka, JP;
Abstract
A laminate comprising a layer of a composition (A) of 100 parts by weight of a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 55% by mole and a degree of hydrolysis of at least 90% by mole and 1 to 100 parts by weight of a thermoplastic polyester having a glass transition temperature of -50.degree. to 25.degree. C. and a heat of fusion of not more than 30 joules/g, the acid component of the polyester being a mixture of 20 to 70% by mole of an aromatic dicarboxylic acid and 80 to 30% by mole of an aliphatic dicarboxylic acid, and the glycol component of the polyester being an alkylene glycol having 2 to 6 carbon atoms; and a layer of a composition (B) of at least one polymer selected from the group consisting of a polyolefin, a polystyrene, a polyvinyl chloride, a polyamide, a polycarbonate and a polyester having a glass transition temperature of not less than 30.degree. C. The laminate of the invention has improved flex crack resistance, drawability and heat moldability as well as excellent gas impermeability.