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Patent Searching and Data


Title:
COPOLYMER INCLUDING BENZOTRIAZOLE-BASED ULTRAVIOLET-ABSORBING UNIT AND COMPOSITION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/187344
Kind Code:
A1
Abstract:
Provided is a copolymer that efficiently absorbs ultraviolet rays having a wavelength of 360-420 nm and that exhibits high affinity. When combined with water the copolymer exhibits excellent solubility and dispersibility. Also provided is a composition of said copolymer. The copolymer of monomer components according to the present invention contains following monomer (A), monomer (B) and/or monomer (C). Monomer (A): a benzotriazole compound having a monovalent sulfur containing group represented by formula (i-1), (in formula (i-1), R10 and R11 represent a hydrocarbon group, and R12 represents a monovalent group represented by formula (i-2), where, R12a, R12b, and R12c represent a hydrogen atom or similar, A represents an ester group or similar, and X represents a hydrocarbon group)). Monomer (B): a carboxy group-containing vinyl monomer or a salt thereof. Monomer (C): a hydroxy alkyl group-containing vinyl monomer.

Inventors:
KANEKO NOBUHIRO (JP)
MIYAKE SHOTA (JP)
KANEKO KOTARO (JP)
KAWAI KOJI (JP)
Application Number:
PCT/JP2021/009966
Publication Date:
September 23, 2021
Filing Date:
March 12, 2021
Export Citation:
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Assignee:
MIYOSHI YUSHI KK (JP)
International Classes:
C08F220/06; C08F220/26; C08L33/02; C08L33/14
Domestic Patent References:
WO2019087983A12019-05-09
WO2021001866A12021-01-07
WO2020118361A12020-06-18
WO2019216266A12019-11-14
Foreign References:
JP2018122450A2018-08-09
JPS6355542A1988-03-10
JP2012532196A2012-12-13
Attorney, Agent or Firm:
USHIKI & ASSOCIATES (JP)
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