Method of preventing polymer scale formation
Номер патента: CA1323464C
Опубликовано: 19-10-1993
Автор(ы): Ichiro Kaneko, Mikio Watanabe, Toshihide Shimizu
Принадлежит: Shin Etsu Chemical Co Ltd
Опубликовано: 19-10-1993
Автор(ы): Ichiro Kaneko, Mikio Watanabe, Toshihide Shimizu
Принадлежит: Shin Etsu Chemical Co Ltd
Реферат: ABSTRACT OF THE DISCLOSURE Method of preventing scale formation A method of preventing polymer scale formation in a polymerization vessel during the polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel in which its inner wall surface is previously coated with a water-based coating solution containing (A) a water-soluble anionic dye and (B) at least one member selected from the group consisting of water-insoluble cationic dyes and water-insoluble nitrogen-containing organic compounds and having a pH of 7 or less and then dried to form a coating. This method can effectively prevent scale formation in the polymerization of extensive manomers having an ethylenically double bond.
Method of preventing polymer-scale formation
Номер патента: AU608671B2. Автор: Toshihide Shimizu,Ichiro Kaneko,Mikio Watanabe. Владелец: Shin Etsu Chemical Co Ltd. Дата публикации: 1991-04-11.