发明名称 |
Prelaminate pressure-sensitive adhesive constructions |
摘要 |
<p>Prelaminate pressure-sensitive adhesive (PSA) constructions comprise a first substrate, a coating of release material on a surface of the first substrate, a PSA layer disposed on the coating of release material, and a detackified layer (DL) disposed on a surface of the PSA layer to form a continuous film covering the PSA layer. In first and second embodiments of the construction the DL is activatable to form a tacky layer on top of the PSA layer for lamination with a second substrate. In a third embodiment, the DL includes constituents that when activated migrate into the PSA layer to expose the PSA layer tacky surface for lamination with a second substrate. The prelaminate PSA constructions are completely nonblocking to a minimum 24 hour blocking temperature of about 50°C at pressure of about 40 kilopascals, thereby allowing such prelaminate PSA construction to be collected, stored, and/or transported before being laminated without adhesive interference occurring between continuous layers. The DL in each embodiment is activatable in less than five seconds to provide a tacky layer having a sufficient open tack time to permit lamination at less than about 100°C.</p> |
申请公布号 |
EP1569188(A2) |
申请公布日期 |
2005.08.31 |
申请号 |
EP20050076061 |
申请日期 |
1997.09.26 |
申请人 |
AVERY DENNISON CORPORATION |
发明人 |
MIEKKA, FREDERICK N.;SCHOLZ, WILLIAM F.;VERHINES, RICHARD;CONTI, NORMAN A.;JOSEPHY, KARL |
分类号 |
C09J7/00;C09J7/02;G09F3/10;(IPC1-7):G09F3/10 |
主分类号 |
C09J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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