发明名称 |
HIGH PERFORMANCE PRESSURE SENSITIVE ADHESIVE TAPES AND PROCESS FOR MAKING THE SAME |
摘要 |
A pressure sensitive adhesive tape comprises a carrier layer having a thickness of 0.25 to 2.0 millimeters and comprising an electron beam cured pressure sensitive adhesive matrix, 10 to 20 % by volume low density microspheres and at least one pigment in an amount sufficient to color the tape. Preferably, fumed silica is present in an amount up to 5 % by weight. The tape preferably has a skin layer on each side of the carrier layer. The skin layer has a coating thickness of 25 to 125 g/m<2> and comprises a pressure sensitive adhesive matrix free of rigid, low density microspheres. The process comprises first preparing an adhesive composition containing electron beam-curable adhesive polymer matrix, fillers and solvent. The composition is introduced and conveyed through a twin screw extruder (10). In the extruder, solvent is removed in one or more solvent removal units (11, 12, 13), and a solvent-free composition is extruded as the carrier layer. Skin layers may be coextruded with the carrier layer. |
申请公布号 |
WO8900106(A1) |
申请公布日期 |
1989.01.12 |
申请号 |
WO1988US02193 |
申请日期 |
1988.06.30 |
申请人 |
AVERY INTERNATIONAL CORPORATION |
发明人 |
PLAMTHOTTAM, SEBASTIAN, S.;MCFEATERS, EARL, W.;OZARI, YEHUDA;MALLYA, PRAKASH |
分类号 |
C09J7/02;C09J201/00;(IPC1-7):B32B5/16 |
主分类号 |
C09J7/02 |
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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