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:
Apr. 14, 2025
Filed:
Jan. 21, 2020
Lg Chem, Ltd., Seoul, KR;
Jeong Min Choi, Daejeon, KR;
Hyun Cheol Kim, Daejeon, KR;
Sojin Kim, Daejeon, KR;
Hyungoo Kang, Daejeon, KR;
Jae Seung Lim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Disclosed relates to a surface protective film including: a base layer; and an adhesive layer provided on one surface of the base layer, where the adhesive layer comprises a cured product of an adhesive composition, comprising: a urethane polymer; an acrylic polymer; and a curing agent, where the acrylic polymer comprises a monomer unit derived from an alkyl(meth)acrylate monomer having 10 or more carbon atoms, where a peel strength of the adhesive layer is 2 gf/in or more and 30 gf/in or less when a surface of the adhesive layer, opposite to a surface on which the base layer is provided, is peeled off from glass at a peel speed of 30 m/min and a peel angle of 180°, and where, in the adhesive composition, the acrylic polymer is comprised in an amount of 1 part by weight to 15 parts by weight based on 100 parts by weight of the urethane polymer.