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Title:
RESIN COMPOSITION, OPTICAL LAMINATE, OPTICAL ARTICLE, LENS, AND GLASSES
Document Type and Number:
WIPO Patent Application WO/2022/158348
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a resin composition having excellent photochromic characteristics and mechanical characteristics. The present invention is a resin composition comprising (i) a urethane resin having a propylene glycol chain in the molecular chain thereof and (ii) a photochromic compound, wherein if the total spectral intensity at 16-20 ppm inclusive, including the spectral intensity of the carbon atom of the methyl group of the propylene glycol chain, as measured by 13C-PST/MAS NMR is PMIpst, and the total spectral intensity at 16-20 ppm inclusive, including the spectral intensity of the carbon atom of the methyl group of the propylene glycol chain, as measured by 13C-CP/MAS NMR is PMIcp, then the intensity ratio of PMIpst with respect to the PMIcp (PMIpst/PMIcp) is 8.0-40.0 inclusive.

Inventors:
NOGUCHI TAKAO (JP)
MORI KATSUHIRO (JP)
MOMODA JUNJI (JP)
Application Number:
PCT/JP2022/000699
Publication Date:
July 28, 2022
Filing Date:
January 12, 2022
Export Citation:
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Assignee:
TOKUYAMA CORP (JP)
International Classes:
C09K9/00; C08G18/48; C08G18/72; C08L75/04; C08L75/08; C09K9/02; G02B1/00; G02B1/04; G02B5/23; G02C7/10
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Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
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