METHOD FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ESTER, POLYMERIZABLE COMPOSITION, RESIN, OPTICAL MATERIAL, AND SPECTACLE LENS

Title:

METHOD FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ESTER, POLYMERIZABLE COMPOSITION, RESIN, OPTICAL MATERIAL, AND SPECTACLE LENS

Document Type and Number:

WIPO Patent Application WO/2023/190874

Kind Code:

A1

Abstract:

Provided are: a method for producing a pentaerythritol mercaptocarboxylic ester that comprises subjecting a mercaptocarboxylic acid and pentaerythritol to a dehydration reaction under solvent-free conditions; a polymerizable composition that comprises the pentaerythritol mercaptocarboxylic ester; a resin that is a cured product of the polymerizable composition; an optical material that comprises the resin; and a spectacle lens that comprises the resin.

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Inventors:

KOUSAKA MASAHISA (JP)

Application Number:

PCT/JP2023/013187

Publication Date:

October 05, 2023

Filing Date:

March 30, 2023

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Assignee:

HOYA LENS THAILAND LTD (TH)
KOUSAKA MASAHISA (JP)

International Classes:

C07C319/12; C07B61/00; C07C321/04; C08G18/38; G02B1/04

Domestic Patent References:

WO2007052329A1	2007-05-10
WO2016208707A1	2016-12-29

Foreign References:

JPH1180117A	1999-03-26
JP2011126822A	2011-06-30
JPS5711959A	1982-01-21
JP2011084479A	2011-04-28

Attorney, Agent or Firm:

INABA, Yoshiyuki et al. (JP)

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