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:
Aug. 24, 2021
Filed:
Oct. 15, 2018
Toyobo Film Solutions Limited, Tokyo, JP;
TOYOBO CO., LTD., Osaka, JP;
Abstract
A laminate having an easy-to-adhere layer on at least one face of a resin substrate film, and having a heat seal layer on a face, of at least one of the easy-to-adhere layer(s), which is on a side opposite the resin substrate film, wherein the resin substrate film has a glass transition temperature of not less than 90° C.; the easy-to-adhere layer is formed from easy-to-adhere agent containing 100 parts by weight of acrylic polymer resin and 3-40 parts by weight of crosslinking agent; the acrylic polymer resin has methylol groups in an amount of 7-20 mol % of all monomer units that make up this polymer; the crosslinking agent is at least one crosslinking agent selected from oxazoline-type crosslinking agents and glycidylamine-type crosslinking agents; and the heat seal layer is a polyolefin-type heat seal layer with a thickness of less than 300 μm.