发明名称 |
End-modified styrene-diene block copolymer prepared using polyfunctional coupling agent |
摘要 |
A radial end-modified styrene-conjugated diene block copolymer having a general formula 1. The copolymer is obtained by synthesizing a styrene-conjugated diene block copolymer by way of copolymerization using an organic lithium initiator in the presence of a nonpolar solvent and then coupling the anionic active end of the resulting copolymer with a polyfunctional polysiloxane:wherein, PS is polystyrene, PD is polydiene such as polyisoprene or polyisoprene-polybutadiene, R is hydroxy group or -(PD-PS), and n is an integer of 1 to 100. The block copolymer based adhesives have low melt viscosity and excellent adhesive strength.
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申请公布号 |
US6777493(B2) |
申请公布日期 |
2004.08.17 |
申请号 |
US20020283160 |
申请日期 |
2002.10.30 |
申请人 |
KOREA KUMHO PETRO CHEMICAL CO., LTD. |
发明人 |
KO YOUNG HOON;CHEEN SUN WOO |
分类号 |
C08F8/42;C08F295/00;C08G77/20;C08G77/42;C08G77/442;C08G81/00;C08K5/54;C08L53/02;C08L83/04;(IPC1-7):C08L83/04 |
主分类号 |
C08F8/42 |
代理机构 |
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代理人 |
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地址 |
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