Asahi Glass Company, Limited

Hiroshi Kawahara

Shohei Yoshida

Shigeyuki Kozawa

Seiichi Miyasaka

Shigeyuki Narisawa

Akinori Noda

Tetsuro Yasuda

Alkyl ether methylolmelamine coating composition, coating process and

A polyol for a polyurethane produced by reacting an epoxide with a reaction product obtained by reacting at least four components of (a) a phenol compound having the formula A--OH (A represents an aromatic ring having at least two reactive sites), (b) an aromatic amine having the formula B--NH.sub.2 (B represents an aromatic ring having at least two reactive sites), (c) an aldehyde and (d) an alkanolamine.

Polyol for a polyurethane prepared by reacting an epoxide with the

A permselective membrane is obtained by fabricating and crosslinking a methylolated vinylphenol polymer having repeat units having the formula ##STR1## wherein p, q and r are respectively 1 or 2; x and y are respectively selected so as to give a ratio of methylol groups/hydroxy groups of from 0.01 to 2.0; m and n are respectively integers to provide 1.gtoreq.m/m+n.gtoreq.0.2; and X and Y are selected from the group consisting of --R, --Cl, --Br, --CO.sub.2 R, ##STR2## so as to copolymerize a vinyl monomer CH.sub.2 =CXY with a vinylphenol; and R, R' and R' represent hydrogen atom or a C.sub.1 -C.sub.4 alkyl group.

Permselective membrane

Halogen-containing s-triazine compounds having two or more s-triazine rings which are remarkably useful as flame retardants are disclosed. The compounds can be produced by reacting cyanuric chloride with a specific phenol and a specific bisphenol in the presence of a base in a solvent.

Halogen-containing s-triazine compound

Growing community of inventors

Yokohama, Japan

Hiroshi Kawahara