Title:
OPTIC LENS MATERIAL
Document Type and Number:
Japanese Patent JP3222026
Kind Code:
B2
Abstract:
PURPOSE: To provide an optic lens material which has a low tacking property, low moisture content, high refractive index, good flexibility and is easy to be handled, by making the lens material formed out of a polymer which is composed of a polymerization component in which a monomer expressed by a specified formula is contained and the composition containing a cross-linking agent.
CONSTITUTION: This optic lens material is formed by a polymer which is obtained from polymerization of a polymerization component containing a monomer (A) which is expressed as a formula, such as 2-hydroxy-3- phenoxypropyl (meth)acrylate and of the composition containing a cross-linking agent. Where, R1 is hydrogen atom or methyl group, R2 to R6 are respectively hydrogen atom, alkyl group, alkoxyl group, hydroxyl group, carboxyl group independently, and (n) represents an integer of 1 to 10. The amount of monomer (A) used is made to be 15∼99weight% of weight components so as to fully exert its effect of improving flexibility, reducing a tacking property, and increasing refractive index, especially 25weight% is preferable.
Inventors:
Kunio Maruyama
Noriko Iwata
Kazuhiko Nakata
Noriko Iwata
Kazuhiko Nakata
Application Number:
JP32238894A
Publication Date:
October 22, 2001
Filing Date:
December 26, 1994
Export Citation:
Assignee:
Menicon Co., Ltd.
International Classes:
G02C7/04; A61L27/00; C08F20/10; C08F20/18; (IPC1-7): A61L27/00; C08F20/18; G02C7/04
Domestic Patent References:
| JP61114201A | ||||
| JP61114202A | ||||
| JP465407A | ||||
| JP4202308A | ||||
| JP6146578A | ||||
| JP4292609A |
Attorney, Agent or Firm:
Sota Asahina (1 person outside)
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