摘要 |
PROBLEM TO BE SOLVED: To obtain a new copolymer of a salt of diallyl dialkyl ammonium except chlorides with sulfur dioxide. SOLUTION: The copolymer of a diallyl dialkyl ammonium alkyl sulfate with sulfur dioxide comprises the diallyl dialkyl ammonium alkyl sulfate unit and the sulfur dioxide unit. COPYRIGHT: (C)2006,JPO&NCIPI
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