Title:
【発明の名称】高屈折率および高変形温度を有するポリマー
Document Type and Number:
Japanese Patent JPH05507301
Kind Code:
A
Abstract:
Ophthalmic lenses and lens blanks having high refractive index and high heat distortion temperature are produced by polymerizing a polymerizable, homogeneous composition comprising epichalcogen resin, aliphatic polythiol, and cyclic anhydride.
Inventors:
Coleman, Charles Earl
Otes, Stephanie Jay
Coulton, james
Prab, Biken S
Otes, Stephanie Jay
Coulton, james
Prab, Biken S
Application Number:
JP50800891A
Publication Date:
October 21, 1993
Filing Date:
April 02, 1991
Export Citation:
Assignee:
PPG INDUSTRIES, INCORPORATED
International Classes:
C08G59/40; C08G59/42; C08G59/66; C08G75/00; C08G75/02; C08G75/06; C08G75/26; G02B1/04; (IPC1-7): C08G59/42; C08G59/66; C08G75/06; C08G75/26; G02B1/04
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)