Title:
METHOD OF FORMING LENS OR SHEET
Document Type and Number:
Japanese Patent JPS543873
Kind Code:
A
Abstract:
PURPOSE: Hardening of monomer liquid is conducted between molds which are held with gasbets consisting of an ethylene-vinyl acetate copolymer, a polyolefin, and an ethylene-propylene rubber to produces uniformly dyeable lenses.
Inventors:
ITOU MASUKUNI
MATSUO NORIO
MATSUO NORIO
Application Number:
JP6797577A
Publication Date:
January 12, 1979
Filing Date:
June 10, 1977
Export Citation:
Assignee:
ASAHI GLASS CO LTD
MITSUBISHI PETROCHEMICAL CO
MITSUBISHI PETROCHEMICAL CO
International Classes:
G02B1/04; B29B7/00; B29C39/00; B29C39/26; B29C61/00; B29D11/00; (IPC1-7): B29C5/00; B29D11/00; G02B1/04