Japan Synthetic Rubber Co., Ltd.

Ricky Contact Lens Research Institute Inc.

Ricky Contact Lens, Inc.

Tetsuo Itoh

Taro Suminoe

Takao Shimizu

Kazuhiko Takahashi

Noboru Satoh

Masahiro Niinomi

Kenji Yanagihara

Mituo Kimura

Shinichi Kimura

Masaaki Mawatari

Syuji Tsuchikawa

A non-hydrous soft contact lens comprising a copolymer comprising, as monomer units:

Non-hydrous soft contact lens and process for producing the same

A thermoplastic resin composition obtained by melt-mixing:

Thermoplastic resin composition comprising a polyphenylene ether and a

A non-hydrous soft contact lens comprising a copolymer comprising, as monomer units, 49.9 to 95 mole % of an acrylate represented by Formula (I) shown below, 0 to 10 mole % of acrylic acid or the specified ester thereof, 4.9 to 50 mole % of a methacrylate represented by Formula (II) shown below, and 0.1 to 10 mole % of a crosslinking monomer. ##STR1## wherein R.sup.1 is at least one selected from the group consisting of a particular straight chain fluoroalkyl group and a particular straight chain alkyl group. ##STR2## wherein R.sup.2 is a particular straight chain fluoroalkyl group. The present soft contact lens requires no sterilization by boiling, and has good resistance to stain, good oxygen permeability, good elastic recovery and good shape stability. A process for producing the above non-hydrous soft contact lens, comprising the step of subjecting a rigid precursor lens to treatment(s) of esterification and/or transesterification, is also disclosed.

An optical product having a thin film on the surface which is obtained by subjecting a mixed gas of oxygen and a hydrocarbon compound having a double bond to plasma polymerization in the presence of an optical product, thereby forming on the surface of the optical product a thin film of a reaction product of said plasma polymerization. Said optical product having a thin film on the surface has excellent resistance to fogging due to adhesion of water drops when used in gas phase, excellent resistance to adhesion of air bubbles when used in liquid phase, high resistance to being stained by oils and fats and an excellent removability of stains due to oils and fats.

Optical product having a thin film on the surface

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Machida, Japan

Tetsuo Itoh