发明名称 |
Polymer-modified particulate titanium dioxide |
摘要 |
The tendency for hard and irregular particles of titanium dioxide pigment to adversely affect the sheen and coin mar resistance of a dried coating into which they have been incorporated is reduced by modifying the particles with polymer particles which have been preformed and are therefore of a more pre-determinable shape and size. The polymer particles are chemically bonded to a polymeric water-soluble compound containing moieties which are adsorbable onto the titanium dioxide particles so that on mixing a colloidally stabilised aqueous dispersion of the polymer particles with a colloidally stabilised aqueous dispersion of titanium dioxide particles, the moieties adsorb onto the titanium dioxide to form a colloidally stable aqueous dispersion of polymer-modified titanium dioxide which is useful in coating compositions.
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申请公布号 |
US5534585(A) |
申请公布日期 |
1996.07.09 |
申请号 |
US19940295103 |
申请日期 |
1994.08.24 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
ROULSTONE, BRIAN J.;WATERS, JULIAN A. |
分类号 |
C08J3/215;C09C1/00;C09C1/36;C09C3/10;C09D5/02;C09D17/00;(IPC1-7):C08K3/22;C08K3/10;C08K3/00;C08K9/02 |
主分类号 |
C08J3/215 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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