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Title:
POLYMER POLYOL AND PHOTOCHROMIC COATING COMPOSITION THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/223710
Kind Code:
A1
Abstract:
The present invention relates to a polymer polyol, and a composition and use thereof. The polymer polyol is a copolymer obtained by copolymerizing hydroxyl-containing acrylic ester and hydroxyl-free acrylic ester. The composition comprises: matrix resin, the polymer polyol of the present invention, and a photochromic compound; and the solid content of hydroxyl in the composition is 1.0% to 6.0%. The composition provided by the present invention is a photochromic coating composition (or called a photochromic coating) having good weather resistance and good compatibility with other functional coatings (such as an organosilane hard coating or/and an anti-reflective coating). The composition is suitable for preparation of a photochromic coating product for ophthalmic use.

Inventors:
GAN, Jiaan (No.518 Jinhuan Rd, Second Industrial Zone Jinshan District, Shanghai 2, 201512, CN)
Application Number:
CN2018/073738
Publication Date:
December 13, 2018
Filing Date:
January 23, 2018
Export Citation:
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Assignee:
SHANGHAI GANTIAN OPTICAL MATERIALS CO., LTD (No.518 Jinhuan Rd, Second Industrial Zone Jinshan District, Shanghai 2, 201512, CN)
International Classes:
C08F220/28; C08F220/14; C08F220/18; C08G77/442; C08L33/00; C08L61/20; C08L75/04; C08L83/10; C09D133/14; C09D175/04; G02B1/10
Domestic Patent References:
WO2012071237A22012-05-31
WO2012141250A12012-10-18
WO2012144460A12012-10-26
Foreign References:
CN107216420A2017-09-29
CN105400251A2016-03-16
JP2017066295A2017-04-06
Attorney, Agent or Firm:
SHANGHAI SSH INTELLECTUAL PROPERTY AGENCY CO., LTD. (Room No.808, Graduate Building East China University of Science and Technology, No.130 Meilong Road, Shanghai 7, 200237, CN)
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