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:
Dec. 16, 2014
Filed:
Mar. 07, 2011
Toshihiro Suwa, Sagamihara, JP;
Shogo Sakakibara, Sagamihara, JP;
Sotaro Endo, Tokyo, JP;
Saori Ueda, Sagamihara, JP;
Shunsuke Suzuki, Kawasaki, JP;
Toshihiro Suwa, Sagamihara, JP;
Shogo Sakakibara, Sagamihara, JP;
Sotaro Endo, Tokyo, JP;
Saori Ueda, Sagamihara, JP;
Shunsuke Suzuki, Kawasaki, JP;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An ultraviolet cross-linkable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site. The storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×10to 1.0×10Pa at 30° C. and 1 Hz and 5.0×10Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×10Pa or more at 130° C. and 1 Hz.