Sumitomo Chemical Company, Limited

Kazunori Kawakami

Shuichi Kanagawa

Kunimasa Kamio

Hisao Takagishi

Akira Shintani

Khoichi Okuno

Novel phosphorus-containing polyglycidyl ethers capable of forming a cured epoxy resin having a high flame retardancy and excellent in heat resistance characteristics such as heat deterioration resistance, glass transition temperature, thermal deformation temperature and the like; a process for producing said phosphorus-containing polyglycidyl ethers; phosphorus-containing polyphenol compounds used in production of said phosphorus-containing polyglycidyl ethers; and a process for producing said phosphorus-containing polyphenol compounds.

Phosphinylmethyl polypenols and polyglycidyl ethers thereof

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.

Growing community of inventors

Osaka, Japan

Kazunori Kawakami