| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | Sumitomo Chemical |
| PATENT CLAIMS |
Mfg method by block co-polymn isotactic PP block with random copolymer comp. of ethylene & butene, whereas said block copolymer satisfies the following - The content of PP comp having intrinsic visc. measured at 135C in tetralin is 0.5-5.0 dl/g is 5-50% - Content of butene is 5-40% - The intrinsic visc. of block copolymer at 135C in tetralin is 0.5-5 dl/g |
| PATENT PHOTOCOPY | Available on request |
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