Polyvinylpyrrolidone (PVP) is a kind of fine polymer obtained by free radical polymerization of N-vinyl pyrrolidone (NVP).
聚乙烯基吡咯烷酮(pvp)，是一种水溶性精细高分子聚合物。
Refining method with solvent mixed A with N-methyl pyrrolidone was used to decolor the FCC diesel oil.
以溶剂A和N-甲基吡咯烷酮的混合物为萃取剂，对催化裂化柴油进行了脱色精制研究。
The present invention discloses a kind of tobacco humectant, which is water solution of pyrrolidone carboxylate.
本发明公开了一种烟草保润剂，该烟草保润剂是吡咯烷酮羧酸盐的水溶液。
The invention also provides a solvent for the production process of knitted impregnated PU gloves, which is prepared from polyurethane resin and methyl l pyrrolidone according to a certain proportion.
本发明同时提供了一种用于该针织浸渍PU手套生产工艺的溶剂，由聚氨酯树脂和甲基吡咯烷酮按比例配制。
The terpolymers of the invention: (a) a vinyl lactam, such as vinyl pyrrolidone or vinyl caprolactam;
发明的三元：（一）一乙烯基酰胺，如聚乙烯吡咯烷酮或乙烯基己内酰胺；
A comparison is made of the performances between N-methyl-2-pyrrolidone and commonly-used organic solutions in lithium batteries.
对比了n甲基2吡咯烷酮与常用锂电池有机溶剂的性能。
A comparison is made of the performances between N-methyl-2-pyrrolidone and commonly-used organic solutions in lithium batteries.
对比了n甲基2吡咯烷酮与常用锂电池有机溶剂的性能。
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