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:
Sep. 01, 2015
Filed:
May. 27, 2009
Shigenori Nakano, Ichihara, JP;
Kaoru Suzuki, Ichihara, JP;
Toshihisa Toyoda, Minato-ku, JP;
Du Pont-Mitsui Polychemicals Co., Ltd., Tokyo, JP;
Abstract
Provided is a polymer composition including (A) an ionomer containing an ethylene/α,β-unsaturated carboxylic acid copolymer and an ethylene/α,β-unsaturated carboxylic acid/α,β-unsaturated carboxylic acid ester terpolymer, and (B) a propylene-based polymer, wherein the mass of constituent units derived from the α,β-unsaturated carboxylic acid ester is from 1 to 4.5% by mass of the entire mass of the ionomer. Through this, a high seal strength may be obtained in a high-temperature range when forming a lock seal, while a high seal strength, as compared with the related art, can be stably obtained over a wide temperature range with a temperature dependence suppressed when forming a peelable seal.