Nof Corporation

Ryuya Gotanda

Yosuke Matsuoka

Norio Iwakiri

Shu Takashima

Eiji Harata

Koh Kobayashi

Nobuyuki Sakamoto

Akane Katori

Provided is a monomer composition for contact lenses, which uses a polysiloxane monomer to produce a polymer that shows satisfactory surface hydrophilicity and oxygen permeability, and that is excellent in modulus and elongation at break. It has been found that a monomer composition containing a phosphorylcholine group-containing polysiloxane monomer, a monovinyl ether monomer, and the like can achieve the above-mentioned object.

Monomer composition for contact lenses, polymer for contact lenses and method for producing same, and contact lens and method for producing the same

Provided is a contact lens that can exhibit excellent breaking elongation and surface hydrophilicity even when produced using a hydrophobic mold made of polypropylene or the like without performing a surface hydrophilic treatment. Further provided are a monomer composition and a polymer that can be suitably used for obtaining the contact lens. This monomer composition contains (A) a siloxanyl group-containing itaconic acid diester monomer, (B) an amide group-containing monomer, (C) a hydroxy group-containing monomer, (D) a siloxanyl group-containing (meth)acrylate, and (E) a cross-linking agent in a specific ratio.

Monomer composition for contact lenses, polymer for contact lenses, contact lens, and method of producing the contact lens

Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

Phosphorylcholine group-containing polysiloxane monomer

Growing community of inventors

Kawasaki, Japan

Ryuya Gotanda