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Patent Searching and Data


Title:
METHOD FOR PRODUCING POLYMERIZABLE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/189785
Kind Code:
A1
Abstract:
Provided is a method for producing a polymerizable composition, comprising the steps of (1) preparing a composition A that contains a polyisocyanate component, is free of a polymerization catalyst, and has a moisture content of not more than 200 mass-ppm; (2) preparing a composition B that contains a polythiol component and has a moisture content of not more than 1000 mass-ppm; and (3) mixing the composition A and the composition B to obtain the polymerizable composition. Also provided is a method for producing an optical member, comprising the steps of filling the polymerizable composition into a mold and polymerizing the polymerizable composition.

Inventors:
KAGEYAMA, Yukio (6-10-1 Nishi-Shinjuku Shinjuku-k, Tokyo 47, 〒1608347, JP)
YAMADA, Masahide (6-10-1 Nishi-Shinjuku Shinjuku-k, Tokyo 47, 〒1608347, JP)
Application Number:
JP2019/014060
Publication Date:
October 03, 2019
Filing Date:
March 29, 2019
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD. (853 Phaholyothin RD, Prachatipat Thanyabur, Pathumthani ., 12130, TH)
KAGEYAMA, Yukio (6-10-1 Nishi-Shinjuku Shinjuku-k, Tokyo 47, 〒1608347, JP)
YAMADA, Masahide (6-10-1 Nishi-Shinjuku Shinjuku-k, Tokyo 47, 〒1608347, JP)
International Classes:
C08G18/08; C08G18/38; G02B1/04; G02C7/00
Domestic Patent References:
WO2008047626A12008-04-24
Foreign References:
JP2011079894A2011-04-21
JP2006162926A2006-06-22
JP2014502657A2014-02-03
JPH1058551A1998-03-03
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (Toranomon ES Bldg. 7F, 25-2 Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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