| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 02.00 |
| PATENT ASSIGNEE | Sony Corp |
| PATENT CLAIMS |
Crosslinked sulfonated styrene-conjugated diene copolymer having av. MW > 900,000 derived from crosslinking of poly( styrene-co-conjugated diene) copolymer starting materials having MW 5,000-500,000 & comprising 0.1-10% conjugated diene & wherein > 20% of all monomer units are sulfonated with sulfonic acid |
| PATENT PHOTOCOPY | Available on request |
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