申请人:S.P.C.M. SA
公开号:US20200031765A1
公开(公告)日:2020-01-30
The present invention relates to a hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acid having a 2-theta powder X-ray diffraction diagram comprising peaks at 10.58°, 11.2°, 12.65°, 13.66°, 16.28°, 18.45°, 20°, 20.4°, 22.5°, 25.5°, 25.88°, 26.47°, 28.52°, 30.28°, 30.8°, 34.09°, 38.19°, 40.69°, 41.82°, 43.74°, 46.04° degrees (+/−0.1°).
The present invention also relates to a production method for this form of 2-acrylamido-2-methylpropane sulfonic acid and a preparation method for an aqueous solution A of a salt of this form of 2-acrylamido-2-methylpropane sulfonic acid, and the (co)polymer of this form of -acrylamido-2-methylpropane sulfonic acid.
本发明涉及一种2-丙烯酰胺-2-甲基丙磺酸的水合晶体形式,其2-theta粉末X射线衍射图包含在10.58°、11.2°、12.65°、13.66°、16.28°、18.45°、20°、20.4°、22.5°、25.5°、25.88°、26.47°、28.52°、30.28°、30.8°、34.09°、38.19°、40.69°、41.82°、43.74°、46.04°度(±0.1°)处的峰。本发明还涉及这种形式的2-丙烯酰胺-2-甲基丙磺酸的生产方法,以及这种形式的2-丙烯酰胺-2-甲基丙磺酸盐的水溶液A的制备方法,以及这种形式的-丙烯酰胺-2-甲基丙磺酸的(共)聚合物。