发明名称 |
Coated bonding tapes having improved peel strength combined with low temperature flexibility |
摘要 |
A coated bonding tape having improved peel strength combined with low temperature flexibility is disclosed in which a layer of impact-resistant material constituted by a milled layer of pigmented and plasticized elastomer is coated with a pressure-sensitive adhesive coating and in which the elastomer layer consists essentially of butyl rubbers, pigment and sufficient plasticizer for the elastomer to provide a half thickness reduction at a pressure below 800 psi. At least about 45% of the butyl rubber is cross-linked, at least about 20% of the butyl rubber is noncross-linked and has an average molecular weight of at least about 250,000, and at least about 60% of the pigment is of reinforcing character, the proportion of plasticizer providing a tape body having a strength of at least about 30 psi before plastic flow begins, and the pressure-sensitive adhesive coating is selected to provide a bond to the tape body which is strong enough to force the bonding tape to fail cohesively when peeled from a substrate.
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申请公布号 |
US4440829(A) |
申请公布日期 |
1984.04.03 |
申请号 |
US19820393374 |
申请日期 |
1982.06.29 |
申请人 |
PROTECTIVE TREATMENTS, INC. |
发明人 |
GERACE, MICHAEL J.;ADAMS, JEFFRY D. |
分类号 |
C09J7/02;(IPC1-7):C09J7/02;B60R13/00 |
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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