| 摘要 |
1306464 Polyarylsulphone resins UNIROYAL Inc 31 July 1970 [4 Aug 1969] 37112/70 Heading C3R Novel thermoplastic polyarylsulphone resins containing units of formula are obtained by reacting 4,4<SP>1</SP>-dichlorodiphenyl sulphone with dialkali metal salts of alpha, alpha<SP>1</SP> - bis - (4 - hydroxyphenyl) - p - diisopropylbenzene. Examples are given. Uses.-For mouldings. |
