Sumitomo Chemical Company, Limited

Akira Shintani

Shuichi Kanagawa

Seimei Yasui

Yasuhisa Saito

Minoru Hino

Katsuo Akagane

Kazunori Kawakami

Takashi Urata, Deceased

A solid resinous product useful for coatings, adhesives and molding materials which is obtained by polymerizing a by-product tar produced as by-product in manufacturing resorcinol or resorcinol and hydroquinone via hydroperoxide of m-diisopropylbenzene or of a combination of m- and p-diisorpopylbenzenes and containing m-substituted phenolic constituents or a combination of m- and p-substituted phenolic constituents as major constituents.

Solid resin prepared by polymerizing by-product tar formed during

An epoxy resin useful for coatings, adhesives and molding materials which is derived from a by-product tar produced as by-product in manufacturing resorcinol or resorcinol and hydroquinone via hydroperoxide of m-diisopropylbenzene or of a combination of m- and p-diisopropylbenzenes and containing m-substituted phenolic constituents or a combination of m- and p-substituted phenolic constituents as major constituents, or is derived from a polymerization product of said by-product tar.

Epoxy resin from by-product tar from resorcinol process and use thereof

A process for production of a polymer emulsion comprising polymerizing at least one partially esterified, imidated or amidated product of an adduct with a compound having a polymerizable unsaturated group and a hydroxy group, epoxy group or amino group, in an aqueous system in the presence or absence of a vinyl monomer, said adduct being produced by adding an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride thereof to at least one compound selected from the group consisting of a synthetic unsaturated polymer having a number average molecular weight of 150 to 30,000 and an iodine value of 50 to 500, a natural drying oil, a natural semidrying oil and an unsaturated fatty acid which composes the natural drying or semidrying oils. The polymer emulsion shows excellent coating film properties when used for paints.

Process for production of novel polymer emulsion

Growing community of inventors

Toyonaka, Japan

Akira Shintani