发明名称 |
Composition for urethane-base plastic lens, urethane-base plastic lens obtained from the composition, and process for the production of the plastic lens |
摘要 |
A composition for a urethane-base plastic lens, comprising: (a) at least one ester compound selected from the group consisting of isocyanate compounds, isothiocyanate compounds and isocyanato-containing isothiocyanate compounds, (b) at least one active hydrogen compound selected from the group consisting of hydroxyl compounds, mercapto compounds and mercapto-containing hydroxyl compounds, (c) a tertiary amine, and (d) a Lewis acid; a plastic lens obtained by heating and curing the composition, and a process for the production of the plastic lens. The composition has a long pot life and can produce an optically uniform plastic lens in a short time.
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申请公布号 |
US5693738(A) |
申请公布日期 |
1997.12.02 |
申请号 |
US19950413113 |
申请日期 |
1995.03.29 |
申请人 |
MITSUI TOATSU CHEMICALS, INC. |
发明人 |
OKAZAKI, KOJU;SHIMAKAWA, CHITOSHI;TANAKA, MAMORU;KANEMURA, YOSHINOBU;NAGATA, TERUYUKI;KOBAYASHI, SEIICHI;TAJIRI, YOKO;KAWAUCHI, NOBUYA;SASAGAWA, KATSUYOSHI |
分类号 |
C08G18/18;C08G18/32;C08G18/38;G02B1/04;(IPC1-7):C08G18/18 |
主分类号 |
C08G18/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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