| 发明名称 |
BIMODALE STJERNEBLOKK-COPOLYMERER OG FREMGANGSMAATE VED DERES FREMSTILLING |
| 摘要 |
Bimodal star-block copolymers are disclosed containing from 60 to 90% by weight of an aromatic vinyl monomer and from 40 to l0% by weight of a conjugated diene, said copolymers having the general formula: (S-S1-B/S2-B1)m -X-(B1-S2/B-S1)n wherein X is a polyfunctional radical m and n are integers (being m</=n) the sum of which is from 3 to 20 and equal to the functionality degree of the radical X, S and S1 are polymer blocks of an aromatic vinyl monomer, B1 is an elastomeric copolymer of conjugated diene units, containing up to 20% of all the diene units of the copolymer, and B/S2 and S2/B are blocks of copolymers of aromatic vinyl monomer and conjugated diene of the random and/or tapered type. |
| 申请公布号 |
NO168113(C) |
申请公布日期 |
1992.01.15 |
| 申请号 |
NO19870002968 |
申请日期 |
1987.07.16 |
| 申请人 |
MONTEDIPE SPA |
发明人 |
RENDINA, GABRIELE;NOCCI, ROBERTO;CALLAIOLI, ANDREA;CORRADO, FRANCESCO |
| 分类号 |
C08F257/00;C08F297/02;C08F297/04;C08G81/02;(IPC1-7):C08F297/04 |
主分类号 |
C08F257/00 |
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