发明名称 |
POLYMERIC PARTICLES AND THEIR PREPARATION |
摘要 |
Swollen core/sheath polymeric particles are disclosed having one or more voids in the core formed by reaction with a base such as sodium hydroxide. The sheath contains styrene or similar monomer polymerized in an amount greater than 25 mole per cent and the polymer is free of acid groups. The core contains acid groups. Swelling is effected at an elevated temperature and in the absence of an organic solvent. The swollen particles on drying in a paint or other composition have air in the voids and act then as opacifying agents. |
申请公布号 |
AU1879988(A) |
申请公布日期 |
1989.02.02 |
申请号 |
AU19880018799 |
申请日期 |
1988.07.07 |
申请人 |
TIOXIDE GROUP PLC. |
发明人 |
NAME NOT GIVEN |
分类号 |
C08F265/00;C08F2/22;C08F2/44;C08F265/02;C08F265/04;C09D151/00 |
主分类号 |
C08F265/00 |
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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