Nof Corporation

Takanori Fujita

Shunsuke Sakurai

Norio Iwakiri

Masatomo Takahashi

Takashi Sasaki

Katsuyoshi Tanaka

Koji Miyamoto

Nobuyuki Yamamoto

Hiroko Kawasaki

Toshiaki Takaoka

The present invention relates to a surface treatment agent for soft contact lens, containing a reaction product obtained through a reaction between a poly(meth)acrylic acid which has an average molecular weight of 1,000 to 2,000,000, and a copolymer (P) which is obtained through polymerization of a specified hydrophilic monomer (n) and a specified reactive monomer (n), wherein in the copolymer, the hydrophilic monomer (n) is 80 to 99 mol %, the reactive monomer (n) is 1 to 20 mol %, and a weight average molecular weight is 10,000 to 5,000,000. The surface treatment agent tremendously enhances surface hydrophilicity of a soft contact lens to improve discomfort.

Surface treatment agent for soft contact lens

Provided is a treating solution for soft contact lenses capable of imparting hydrophilicity and sustainability thereof to a soft contact lens surface. It has been found that a treating solution for soft contact lenses containing a copolymer that contains two kinds of monomers different from each other as constituent units at a specific ratio, and that has a specific weight-average molecular weight can impart excellent hydrophilicity and sustainability thereof.

Soft contact lens treatment solution

[Object] To provide a phosphorylcholine group-containing compound capable of producing a phosphorylcholine complex, and the phosphorylcholine complex, the phosphorylcholine complex being easily manufactured and suitable for use as a phosphorylcholine antigen. [Solving Means] There are provided a phosphorylcholine group-containing compound having a structure represented by the following formula (1), and a phosphorylcholine-protein complex having a structure in which the phosphorylcholine group-containing compound and an amino acid amine site of a protein are amide bonded. (X represents a hydrogen atom, a monovalent cation residue, or a hydroxysuccinimide group).

Phosphorylcholine group-containing compound and phosphorylcholine complex

Disclosed are optical materials which effectively absorb UV light up to the long wavelength band, have low specific gravity, and have balanced properties including impact and heat resistances; lenses; and optical material compositions as their starting materials. The composition contains a polymerizable monomer material consisting of at least one di(meth)acrylate of formula (1):(R: CHetc., Ph: a phenylene group; x, z: an integer of 1 to 5; y: 0 or 1) and at least one monomer (M) having at least one vinyl group in one molecule other than monomers of formula (1), and an additive selected from component (A), (A), or (B), or mixtures thereof, provided that components (A) and/or (B) is contained, and when component (B) is contained, components (A) and/or (A) is also contained:

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Kanagawa, Japan

Takanori Fujita