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:
Jun. 21, 2005
Filed:
Nov. 27, 2001
Satoshi Hanada, Ibaraki, JP;
Ryuma Kuroda, Ibaraki, JP;
Satoshi Hanada, Ibaraki, JP;
Ryuma Kuroda, Ibaraki, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
An object of the present invention is to provide a foamed polyolefin resin sheet which exhibits a high adhesive strength when laminated with a layer formed of a saponified ethylene-vinyl ester copolymer and which still exhibits a high adhesive strength even when laminated with a layer of a thermoplastic resin having relatively low polarity such as a polyolefin resin. This object is attained by a foamed polyolefin resin sheet including a foamed polyolefin resin layer and a non-foamed surface layer formed of a thermoplastic resin composition having an A1/A2 ratio falling within a range between 1×10and 1×10, wherein A1 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1700 to 1750 cmand A2 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1455 to 1465 cm.