发明授权
US4659828A Dimethyl sulfate quaternary ammonium salt of 1-acryloyl-4-methyl piperazine 失效
硫酸二甲酯季铵盐1-丙烯酰-4-甲基哌嗪

Dimethyl sulfate quaternary ammonium salt of 1-acryloyl-4-methyl
piperazine
摘要:
The methyl chloride or dimethyl sulfate quaternary ammonium salt of 1-acryloyl-4-methyl piperazine and polymers thereof.
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