发明名称 |
ABA triblock copolymer, thickener, and aqueous composition |
摘要 |
To provide an ABA triblock copolymer containing: an A-block having, in a constitutional unit thereof, a monomer represented by the following general formula (1) or a monomer represented by the following general formula (2); and a B-block having, in a constitutional unit thereof, a hydrophilic monomer having a radical polymerizable unsaturated bond,;
where R1 is a hydrogen atom or a methyl group; R2 is a C5-C18 alkylene group; M is a hydrogen atom or a monovalent metal atom; and X1 is —NH— or an oxygen atom in the general formula (1), and where R11 is a hydrogen atom or a methyl group; R12 is a C5-C18 alkylene group; R13 and R14 are each independently a hydrogen atom, a methyl group, or an ethyl group; and X11 is —NH— or an oxygen atom in the general formula (2). |
申请公布号 |
US8829133(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201313867388 |
申请日期 |
2013.04.22 |
申请人 |
Ricoh Company, Ltd.;University of Hyogo |
发明人 |
Usui Yuuma;Yusa Shin-ichi |
分类号 |
C08F222/16;C08F222/22;C08F222/38;C08F2/38;C08K3/16;C08F293/00;C08F4/04 |
主分类号 |
C08F222/16 |
代理机构 |
Cooper & Dunham LLP |
代理人 |
Cooper & Dunham LLP |
主权项 |
1. An ABA triblock copolymer comprising:
an A-block having, in a constitutional unit thereof, a monomer represented by the following general formula (1) or a monomer represented by the following general formula (2); and a B-block having, in a constitutional unit thereof, a hydrophilic monomer having a radical polymerizable unsaturated bond, where R1 is a hydrogen atom or a methyl group; R2 is a C5-C18 alkylene group; M is a hydrogen atom or a monovalent metal atom; and X1 is —NH— or an oxygen atom in the general formula (1), and where R11 is a hydrogen atom or a methyl group; R12 is a C5-C18 alkylene group; R13 and R14 are each independently a hydrogen atom, a methyl group, or an ethyl group; and X11 is —NH— or an oxygen atom in the general formula (2), wherein the hydrophilic monomer is a monomer represented by the general formula (3): where R21 is a hydrogen atom or a methyl group; and R22 and R23 are each independently a hydrogen atom, a methyl group, or an ethyl group in the general formula (3), and wherein an average polymerization degree of the A-block [P(A)] and an average polymerization degree of the B-block [P(B)] satisfy the following formulae (I) and (II):
3<P(A)<10 Formula (I)20<P(B)/P(A)<300 Formula (II). |
地址 |
Tokyo JP |