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. 11, 2001
Filed:
Jul. 27, 2000
Shigetoshi Sasano, Osaka, JP;
Sachio Igarashi, Osaka, JP;
Takeda Cheical Industries, Ltd., Osaka, JP;
Abstract
A laminate adhesive that can suppress elusion of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. The laminate adhesive comprises a polyisocyanate component and a polyol component, wherein the polyol component includes polyester polyol and/or polyester polyurethane polyol which is produced by reaction of polyester polyol and polyisocyanate, and wherein concentration of cyclic compounds in extracted water which are extracted from a composite film bonded by the laminate adhesive by water of 0.5 mL/cm,per unit area of the composite film is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.