Title:
(METH)ACRYLIC ACID ESTER-BASED COPOLYMER AND CURABLE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/203064
Kind Code:
A1
Abstract:
This (meth)acrylic acid ester-based copolymer (A) has a reactive silicon group represented by formula (1). Monomer components forming the copolymer include a (meth)acrylic acid ester (a1), a polyoxyalkylene-based polymer (a2) having more than one (meth)acryloyl group per molecule, and a chain transfer agent (a3) having a mercapto group. The mol ratio (a2)/(a3) is 0.06 or more. The monomer components further include a monomer (a4) having a reactive silicon group and a polymerizable unsaturated group and/or (a3) further includes a reactive silicon group. (1): -SiR1
cX3-c. R1 represents a substituted or unsubstituted hydrocarbon group having 1-20 carbon atoms. X represents a hydroxyl group or a hydrolyzable group. c represents 0 or 1.
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Inventors:
MIYAFUJI KIYOSHI
Application Number:
PCT/JP2022/014602
Publication Date:
September 29, 2022
Filing Date:
March 25, 2022
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08F220/10
Foreign References:
| JPS5978222A | 1984-05-07 | |||
| JP2008045059A | 2008-02-28 | |||
| US20200157266A1 | 2020-05-21 | |||
| JPS5273998A | 1977-06-21 | |||
| JPS59122541A | 1984-07-16 | |||
| JP5082851B2 | 2012-11-28 | |||
| JPH04283259A | 1992-10-08 | |||
| JPH09194731A | 1997-07-29 | |||
| JPH03160053A | 1991-07-10 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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