HYDROPHILIC COPOLYMER, USE THEREOF AS BIOMEDICAL MATERIAL AND CONTACT EYE LIGHT CORRECTING PRODUCT MANUFACTURED THEREFROM

Title:

HYDROPHILIC COPOLYMER, USE THEREOF AS BIOMEDICAL MATERIAL AND CONTACT EYE LIGHT CORRECTING PRODUCT MANUFACTURED THEREFROM

Document Type and Number:

Japanese Patent JPS61144603

Kind Code:

A

Abstract:

The invention relates to new cross-linked copolymers of N-vinyl pyrrolidone, N-alkyl-N-vinyl carboxylic acid amides, methacrylates and optionally further copolymerizing monomers of a specific composition. the copolymers have a water absorption capacity of up to about 80% by weight, based on the hydrated state, and are suitable for the production of shaped articles which are in contact with living tissue in use. Examples include soft contact lenses and scleral lenses of high mechanical strength, in particular thin to very thin lenses for prolonged wear.

Inventors:

OTSUTOOKURISUCHIYAN GAIYAA
FURANKU BINGURAA

Application Number:

JP27709185A

Publication Date:

July 02, 1986

Filing Date:

December 11, 1985

Export Citation:

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Assignee:

BAYER AG

International Classes:

B29D11/02; C08F226/10; G02B1/04; G02C7/04; (IPC1-7): G02B1/04; G02C7/04

Attorney, Agent or Firm:

Heikichi Odashima

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