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Title:
PHOTOCHROMIC COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/137469
Kind Code:
A1
Abstract:
A photochromic composition comprising: a naphthopyran-based photochromic compound having a specific structure; and an oligomer.

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Inventors:
KAMBE YASUAKI (JP)
Application Number:
PCT/JP2019/047972
Publication Date:
July 02, 2020
Filing Date:
December 06, 2019
Export Citation:
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Assignee:
PILOT INK CO LTD (JP)
International Classes:
C09D5/06; C08L101/00; C09D7/41; C09D11/037; C09D11/17; C09D11/322; C09K9/02
Domestic Patent References:
WO2013008936A12013-01-17
Foreign References:
JP2018001757A2018-01-11
JP2017132114A2017-08-03
JP2014122318A2014-07-03
JP2014121860A2014-07-03
US5840926A1998-11-24
US5464567A1995-11-07
JP2015137259A2015-07-30
JPH11116565A1999-04-27
Attorney, Agent or Firm:
YAMAO, Norihito (JP)
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