B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/103
B29D 11/00 (2006.01) B29C 33/60 (2006.01) C08G 18/38 (2006.01) C08K 5/098 (2006.01) C08K 5/19 (2006.01) C08K 5/521 (2006.01) C08L 75/04 (2006.01) G02B 1/04 (2006.01)
Patent
CA 1320806
- 36 - ABSTRACT OF THE DISCLOSURE The present invention relates to a process for preparing plastic lenses having a high-refractive index comprising forming a mixture containing one or more of polyisocyanate compounds; one or more active hydrogen compounds selected from the group consisting of a polyol compound having no sulfur atom, a polyol compound having at least one sulfur atom, and a polythiol compound having at least one sulfur atom in addition to the sulfur atom contained in mercapto group and at least one internal releasing agent and then casting and polymerizing the mixture.
590925
Kajimoto Nobuyuki
Kanemura Yoshinobu
Miura Tohru
Nagata Teruyuki
Okazaki Koju
Kajimoto Nobuyuki
Kanemura Yoshinobu
Mitsui Toatsu Chemicals Inc.
Miura Tohru
Nagata Teruyuki
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