| 发明名称 |
Pressure sensitive adhesive sheet for optics |
| 摘要 |
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 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz. |
| 申请公布号 |
US8911873(B2) |
申请公布日期 |
2014.12.16 |
| 申请号 |
US201113581816 |
申请日期 |
2011.03.07 |
| 申请人 |
3M Innovative Properties Company |
发明人 |
Suwa Toshihiro;Sakakibara Shogo;Endo Sotaro;Ueda Saori;Suzuki Shunsuke |
| 分类号 |
B32B27/30;B32B38/04;C09J133/08;C09J7/02 |
主分类号 |
B32B27/30 |
| 代理机构 |
|
代理人 |
Gallagher Ann K. |
| 主权项 |
1. An ultraviolet cross-linkable pressure sensitive adhesive sheet comprising:
a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site, wherein the ultraviolet cross-linkable site has a benzophenone structure, wherein the storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz, and wherein the storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz. |
| 地址 |
St. Paul MN US |
