Invention Grant
- Patent Title: Polymerizable composition for polythiourethane optical material, polythiourethane optical material obtained from the polymerizable composition, and polymerization catalyst for polythiourethane optical material
- Patent Title (中): 聚硫氨酯类光学材料的聚合性组合物，聚合性组合物得到的聚硫氨酯类光学材料，聚硫氨酯类光学材料用聚合催化剂
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Application No.: US13001648Application Date: 2009-06-24
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Publication No.: US08304507B2Publication Date: 2012-11-06
- Inventor: Masanori Iwazumi , Mamoru Tanaka
- Applicant: Masanori Iwazumi , Mamoru Tanaka
- Applicant Address: JP Minato-Ku, Tokyo
- Assignee: Mitsui Chemicals, Inc.
- Current Assignee: Mitsui Chemicals, Inc.
- Current Assignee Address: JP Minato-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2008-171289 20080630; JP2008-171294 20080630
- International Application: PCT/JP2009/002892 WO 20090624
- International Announcement: WO2010/001550 WO 20100107
- Main IPC: C08G18/22
- IPC: C08G18/22
Abstract:
The polymerizable composition for a polythiourethane optical material of the present invention includes (A) a polymerization catalyst for a polythiourethane optical material, (B) at least one compound selected from an isocyanate compound and an isothiocyanate compound, and (C) a compound containing one or more mercapto groups, wherein said polymerization catalyst for a polythiourethane optical material (A) includes (a1) a zinc compound, (a2) a compound represented by the following general formula (1), and (a3) a sulfonic acid represented by the following general formula (2):
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