Title:
COMPOSITION FOR COATING MATERIALS
Document Type and Number:
WIPO Patent Application WO/2022/054851
Kind Code:
A1
Abstract:
The present invention provides a water-repellent composition for coating materials, said composition enabling easy removal of dirt, while having good appearance since the water-repellent component thereof exhibits excellent compatibility with other constituent materials. The present invention provides a composition for coating materials, said composition containing a siloxane group-containing polymer (A) and a crosslinking agent (B), wherein: the siloxane group-containing polymer (A) is a block copolymer that contains a block A and a block B; the block A contains at least a structural unit derived from a siloxane group-containing vinyl monomer (a); the block B contains a structural unit derived from a hydroxyl group-containing vinyl monomer (b), and if necessary, a structural unit derived from another vinyl monomer (c) that is copolymerizable with the vinyl monomers (a) and (b); the molecular weight distribution (Mw/Mn) is 2.0 or less; and the copolymer is polymerized by means of living radical polymerization.
Inventors:
AKIZUKI SHINSUKE (JP)
MIWA YASUNORI (JP)
MORIMOTO SACHIKO (JP)
INOUE YUKI (JP)
MASUMOTO SATORU (JP)
MIWA YASUNORI (JP)
MORIMOTO SACHIKO (JP)
INOUE YUKI (JP)
MASUMOTO SATORU (JP)
Application Number:
PCT/JP2021/033069
Publication Date:
March 17, 2022
Filing Date:
September 02, 2021
Export Citation:
Assignee:
NIPPON PAINT AUTOMOTIVE COATINGS CO LTD (JP)
OTSUKA CHEMICAL CO LTD (JP)
OTSUKA CHEMICAL CO LTD (JP)
International Classes:
C09D153/00; C08F293/00; C08G18/62; C09D7/40; C09D157/10; C09D175/04; C09D183/04; C09D201/06
Domestic Patent References:
| WO2021131726A1 | 2021-07-01 | |||
| WO2004014848A1 | 2004-02-19 | |||
| WO2004014962A1 | 2004-02-19 | |||
| WO2004072126A1 | 2004-08-26 | |||
| WO2004096870A1 | 2004-11-11 |
Foreign References:
| CN101875707A | 2010-11-03 | |||
| US20110071251A1 | 2011-03-24 | |||
| JPH11293184A | 1999-10-26 |
Other References:
ZHENG XUMIN, ZHENGCHUN CAI, ZHENGWEI LYU, YONGKANG CHEN, YONGXIN JI: "Synthesis of Si-containing macro-RAFT agent for the water-borne polyacrylate polyurethane with anti-graffiti coating applications", MATERIALS TODAY COMMUNICATIONS, vol. 25, 31 August 2020 (2020-08-31), XP055911024, DOI: 10.1016/j.mtcomm.2020.101590
BO LI, ET AL.: "Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials", PROGRESS IN ORGANIC COATINGS, ELSEVIER BV, NL, vol. 78, 1 January 2015 (2015-01-01), NL , pages 188 - 199, XP055564089, ISSN: 0300-9440, DOI: 10.1016/j.porgcoat.2014.09.004
BO LI, ET AL.: "Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials", PROGRESS IN ORGANIC COATINGS, ELSEVIER BV, NL, vol. 78, 1 January 2015 (2015-01-01), NL , pages 188 - 199, XP055564089, ISSN: 0300-9440, DOI: 10.1016/j.porgcoat.2014.09.004
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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