Block copolymers comprising an nphenyl maleimide and either a diolefin or cyclic oxide |
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| 申请号 | US3632681D | 申请日 | 1967-05-04 | 公开(公告)号 | US3632681A | 公开(公告)日 | 1972-01-04 |
| 申请人 | DUNLOP CO LTD; | 发明人 | POPE GEORGE A; VAUGHAN GEORGE; WILSON PAUL I; | ||||
| 摘要 | A BLOCK COPOLYMER HAVING THE GENERAL FORMULA A-(B-A)N IN WHICH A REPRESENTS A CRYSTALLINE POLYMER BLOCK HAVING A MELTING POINT ABOVE 100*C. AND THE TOTAL AMOUNT OF POLYMER BLOCK A IS FROM 3 PERCENT TO 30 PERCENT BY WEIGHT OF THE BLOCK COPOLYMER AND IN WHICH B REPRESENTS AN AMOUPHOUS POLYMER BLOCK HAVING A GLASS TRANSITION TEMPERATURE NOT GREATER THAN 15*C. AND HAS A VISCOSITY AVERAGE MOLECULAR WEIGHT OF 10,000 TO 600,000 AND N IS AN INTEGAR OF FROM 1 TO 5. |
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| 权利要求 | |||||||
| 说明书全文 | |||||||
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