Kanegafuchi Kagaku Kogyo Kabushiki Kaisha

Hirokazu Nakanishi

Nobutaka Tani

Katsuhiko Isayama

Kazuhiko Katayama

Junji Takase

Masahiko Nishigaki

Tetsuo Mita

Akira Ohtani

Minoru Nishizawa

Compositions curable upon exposure to atmospheric moisture at room temperature comprising (a) organic polymer having at least one hydrolyzable silicon-containing group in the molecule and having a molecular weight from about 500 to 15,000 and (b) a photocurable substance.

Curable composition

In the suspension polymerization in an aqueous medium of vinyl chloride alone or of a monomer mixture comprising vinyl chloride as a major component and other monomers copolymerizable therewith as a minor component, depositin of polymer scales on the inside surfaces of the polymerization vessel is surprisingly prevented by coating the interior surface of the vessel and auxiliary equipment prior to the polymerization with at least one compound selected from the group consisting of hydroxyhydroquinone and pyrogallol.

Method of polymerizing vinyl chloride

Growing community of inventors

Kobe, Japan

Hirokazu Nakanishi