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Title:
METHOD FOR MANUFACTURING POLYTHIOL COMPOUND, METHOD FOR MANUFACTURING CURABLE COMPOSITION, AND METHOD FOR MANUFACTURING CURED MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/189762
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a polythiol compound, including reacting thiourea having an ammonium thiocyanate content of 0.05% by mass and a polyol compound, and obtaining an isothiuronium salt.

Inventors:
KAGEYAMA YUKIO (JP)
Application Number:
PCT/JP2019/014000
Publication Date:
October 03, 2019
Filing Date:
March 29, 2019
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD (TH)
KAGEYAMA YUKIO (JP)
International Classes:
C07C319/20; C07C321/14; C08G18/38; G02B1/04; C07C335/32
Domestic Patent References:
WO2018003059A12018-01-04
WO2007129449A12007-11-15
WO2007129450A12007-11-15
Foreign References:
KR20120058635A2012-06-08
JP2015506947A2015-03-05
JPS5319037B21978-06-19
JP2009262480A2009-11-12
Other References:
See also references of EP 3659999A4
Attorney, Agent or Firm:
SIKS & CO. (JP)
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