Nippon Fine Chemical Co., Ltd.

Toray Industries, Inc.

Nippon Aspherical Lens Co., Ltd.

Masaharu Suzuki

Takashi Taniguchi

Hideki Yamagishi

Mitsuaki Tanaka

Kiyoshi Horie

Yoshiaki Morita

Yukio Mikamori

Susumu Yano

This invention provides a process for preparing cyclic phosphonitrilic chloride oligomers characterized by the combination of:

Process for preparing cyclic phosphonitrilic chloride oligomers

This invention provides a composition for coating plastics articles comprising (A) a hydrolyzed product of an organoalkoxysilane represented by the formula

Organoalkoxysilane coating compositions for plastic articles

A tintable coating composition is provided. It includes (A)(1) hydrolysates of silane compounds containing at least one epoxy group and not less than two alkoxy groups which are directly bonded to Si atom in the molecule, and, if necessary, (2) compounds containing silanol and/or siloxane groups in the molecule, and/or epoxy compounds; (B) fine silica particles having an average diameter of from about 1 to about 100 m.mu.; and (C) an aluminum chelate compound having the general formula AlX.sub.n Y.sub.3-n, where X is OL (and L represents a lower alkyl group), Y represents one or more ligands produced from a compound selected from the group consisting of M.sup.1 COCH.sub.2 COM.sup.2 and M.sup.3 COCH.sub.2 COOM.sup.4 where all of M.sup.1, M.sup.2, M.sup.3 and M.sup.4 are lower alkyl groups, and wherein n is an integer comprising 0, 1 or 2. This invention also concerns an article, preferably plastic, coated with said coating composition and having a hard and tintable, scratch-resistant film, which is formed by heating and curing.

Tintable coatings and articles having such coatings

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Takatsuki, Japan

Masaharu Suzuki