发明名称 |
PIGMENT DISPERSIONS CONTAINING DISPERSANTS PREPARED BY CONTROLLED RADICAL POLYMERIZATION HAVING HYDROPHILIC AND HYDROPHOBIC SEGMENTS |
摘要 |
A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, and has polymer chain structure represented by the following general formula (I): phi -(G)p-(E)s-T. In general formula (I), G is a residue of at least one radically polymerizable ethylenically unsaturated monomer; E is a hydrophilic residue of at least one radically polymerizable ethylenically unsaturated monomer; G and E are different from one another; phi is a hydrophobic residue of or derived from the initiator, and is free of said radically transferable group; T is or is derived from the radically transferable group of the initiator; p and s represent average numbers of residues occurring in a block of residues; p and s are each individually selected such that the pigment dispersant has a number average molecular weight of at least 250.
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申请公布号 |
WO0144389(A1) |
申请公布日期 |
2001.06.21 |
申请号 |
WO2000US34323 |
申请日期 |
2000.12.13 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
WHITE, DANIELA;COCA, SIMION;O'DWYER, JAMES, B. |
分类号 |
C09B67/46;C09D17/00;(IPC1-7):C09D17/00;C09B67/00 |
主分类号 |
C09B67/46 |
代理机构 |
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