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. 16, 2014
Filed:
Oct. 14, 2011
Kyoung Jin Ha, Uiwang-si, KR;
Ji Hye Kwon, Uiwang-si, KR;
Kil Sung Lee, Uiwang-si, KR;
Irina Nam, Uiwang-si, KR;
Lee June Kim, Uiwang-si, KR;
Kyoung Jin Ha, Uiwang-si, KR;
Ji Hye Kwon, Uiwang-si, KR;
Kil Sung Lee, Uiwang-si, KR;
Irina Nam, Uiwang-si, KR;
Lee June Kim, Uiwang-si, KR;
Cheil Industries, Inc., Gumi-si, Kyeongsangbuk-do, KR;
Abstract
An optical adhesive composition includes a urethane (meth)acrylate resin having at least one hydroxyl group and at least one vinyl group, the urethane (meth)acrylate resin having a curing contraction ratio expressed by Equation 1 of about 0 to about 3%; and an adhesion of about 30 to about 80 kgf:Curing contraction ratio (%)=()/×100,  [Equation 1]where A is a specific gravity of the optical adhesive composition before curing, and B is a specific gravity of the solid optical adhesive composition after curing.