发明名称 |
Mehrarmiges Blockcopolymer und Haftkleber und mit einem mehrarmigen elastomeren Blockcopolymer hergestelltes Band |
摘要 |
<p>The present invention provides a novel multi-arm block copolymer, a novel pressure-sensitive adhesive made from a multi-arm elastomeric block copolymer, and a novel tape made therefrom. The multi-arm block copolymer has the general structure (A-B)mY(C-D)n wherein A, B, C and D are polymer segments; Y is a residue of a multifunctional coupling agent; and m and n are the number of arms, where m and n are greater than 0 and the sum of m plus n is at least 3. A comprises a random copolymer of a monoalkenylarene and a conjugated diene; B and C comprise either a homopolymer of a conjugated diene or a polymer of two or more conjugated dienes; D comprises either a homopolymer of a monoalkenylarene or a copolymer of a monoalkenylarene and a conjugated diene wherein the Tg of D is greater than the Tg of A; and the weight percent of monoalkenylarene in the block copolymer is 40% or less. The pressure-sensitive adhesive of the invention comprises 100 parts by weight of either the previously described multi-arm block copolymer or a multi-arm block copolymer having the structure (A'-B)mY, about 20 to about 300 parts by weight of a tackifying resin, 0 to about 50 parts by weight of a crosslinking agent, and 0 to about 200 parts by weight of a plasticizer.</p> |
申请公布号 |
DE69420332(D1) |
申请公布日期 |
1999.10.07 |
申请号 |
DE1994620332 |
申请日期 |
1994.05.24 |
申请人 |
MINNESOTA MINING AND MFG. CO., SAINT PAUL |
发明人 |
MA, JINGJING;NESTEGARD, MARK K. |
分类号 |
C08F297/02;C08F297/04;C08G81/02;C08L53/02;C09J7/00;C09J7/02;C09J153/00;C09J153/02;C09J201/00;(IPC1-7):C08F297/04 |
主分类号 |
C08F297/02 |
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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