Ulanqab Kema New Material Co,.Ltd. has constructed the production line project with an annual output of 3000 tons of vinyl pyrrolidone (NVP) and 1500 tons of polyvinyl pyrrolidone (PVP: K30, K90).
The quality reaches industrial level
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Application: plastic / Wood / paper / metal / ink / Electronics / adhesives
N-vinylamides are fine chemicals which have been studied deeply and widely
Povidone iodine is a loose complex formed by the combination of elemental iodine and polymer carrier
Application: as stabilizer, beer, Baijiu, grape juice and fruit juice are extended to prolong its storage period.
Pvk-30 has been widely used in medicine, and it is widely used as the adhesive for tablets and granules
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On January 6, 2021, the annual meeting of Ulanqab Kema new materials Co., Ltd. arrived as scheduled, and all the staff gathered together to count the details of our hard work in 2020. At the beginning of the annual meeting, Zhang Yu, chairman of the board
On October 14-16, 2020, the 85th China international pharmaceutical raw materials / intermediates / packaging / Equipment Fair will be held in Nanjing International Expo Center. Kema company started construction in March 2018, put materials into trial ru...
In the face of difficulties, we went up against the wind and experienced the epidemic situation. We cherish our lives more, but we are never afraid. On December 16, 2020, Kema company made careful preparations. Mr. Zhang Yu, chairman of Kema new materials...
As we know, the use of each technology has several disadvantages. For example, the formation of salt is a complex process, in which the increase of solubility is not always predictable. This method is not suitable for neutral compound 37. As another examp...
通过进一步的研究,得到了NVP在丙烯酸或kso存在下的水解机理。NVP分子中乙烯基的电荷不平衡,即双键连接的两个碳原子的电荷密度不同。这种电荷不平衡为NVP的水解提供了可能。当存在酸性或碱性离子时,NVP在分子中发生异构化,形成一系列过渡态,NVP水解的第二步是吡咯烷酮与NVP分子的加成反应,产物在水存在下进一步分解为吡咯烷酮和乙醛。
聚维酮K30是通过对吡咯烷酮和乙烯加压而制备的乙烯基吡咯烷酮单体,以及通过催化剂的聚合而获得的1-乙烯基-2-吡咯烷酮均聚物。聚维酮K30疏水性和亲水性。化学性质相对稳定,药物制剂效果良好。它是重要的固体制剂赋形剂。目前,它在医药领域得到了广泛的应用,行业具有良好的发展前景。...
酯类使用的增稠剂增稠机理是由于同系物而形成的,烷醇酰胺的机理是酯类主要用于表面活性剂水溶液体系中。...
表面活性增稠剂:一部分的甜菜碱也可以作增稠剂。...
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