Nissan Chemical Industries Limited

Kenichi Osawa

Fumie Sato

Motohiko Hidaka

Misao Miyamoto

Satoru Miyake

Toshinari Koda

Takuro Oda

Akira Hirao

Seiichi Nakahama

A resin with a favorable index of refraction and transparency even without using heavy atoms or inorganic oxide fine particles by means of a polymerizable monomer having a 1,3,5-triazine ring represented by formula 1. (In formula 1: A is a group represented by formula 2, (in formula 2: Rrepresents a hydrogen atom or a methyl group, T represents an alkylene having 1-10 carbon atoms, and Rrepresents O or NH), and B1 and B2 are each independently groups represented by formula 3, formula 4, or formula 5 (in formulas 3-5: R, R, and Rrepresent an alkyl group having 1-10 carbon atoms, an aryl group, or an aryloxy group, n1 and n3 are integers from 0-5, and n2 is an integer from 0-7, however when there are at least two of each of R, R, and R, these may be the same or different from each other).)

Transparent high-refractive-index resin composition

Expoxy/acid anhydride composition

A polymer obtained by the polymerization of a substituted 1,3-butadiene compound of the formula: ##STR1## wherein each of X.sub.1 and X.sub.2 is hydrogen or SiR.sub.1 R.sub.2 R.sub.3, provided that at least one of X.sub.1 and X.sub.2 is SiR.sub.1 R.sub.2 R.sub.3, wherein each of R.sub.1, R.sub.2 and R.sub.3 is halogen, lower alkyl or lower alkoxy, provided that R.sub.1, R.sub.2 and R.sub.3 are not lower alkyl at the same time.

Polymers of substituted 1,3-butadiene compounds having reactive silyl

Growing community of inventors

Funabashi, Japan

Kenichi Osawa