Central Glass Company, Limited

Yusuke Kuramoto

Satoru Miyazawa

Shinya Akiba

Makoto Kobayashi

Kazuhiko Maeda

Satoru Kobayashi

Takeo Komata

Ryo Nadano

Asuka Sano

Takahisa Tada

Seiji Murata

The present invention is directed to a purification method for purifying a fluorine-containing polymerizable monomer of the formula (1), in which the fluorine-containing polymerizable monomer is purified by distillation in the coexistence of a phenolic compound A such as 6-tert-butyl-2,4-xylenol and a phenolic compound B such as 2,2'-methylene-bis(4-methyl-6-tert-butylphenol). By the combined use of the phenolic compound A and the phenolic compound B, it is possible to significantly suppress polymerization or oligomerization of the fluorine-containing polymerizable monomer even during industrial-production-scale distillation and efficiently purify the fluorine-containing polymerizable monomer by distillation.

Method for purifying polymerizable fluoromonomer by distillation

A process for producing an &#x3b1;-substituted acrylic norbornanyl compound represented by the formula [3] includes reacting an &#x3b1;-substituted acrylic acid anhydride represented by the formula [1] with a substituted norbornanyl alcohol represented by the formula [2]. wherein Rrepresents a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group, or perfluoroethyl group, and wherein one of R, Rand Ris a CFC(CF)(OH)CH&#x2014; group, and each of the other two of R, Rand Ris a hydrogen.

Process for producing &#x3b1;-substituted acrylic norbornanyyl compounds

A process for producing an acrylic ester compound includes reacting in the presence of alkene an alcohol represented by the formula (1),  

Process for producing acrylic ester compound

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Kawagoe, Japan

Yusuke Kuramoto