发明名称 |
Catalytic process and systems |
摘要 |
A process is provided for conducting or catalyzing a chemical reaction on a surface by depositing on the surface an adherent monolayer of positively charged polymer particles containing an active agent distributed throughout the polymer and contacting the deposited adherent monolayer with a suitable reactant. The positively charged polymer particles have diameters of less than about 3 micrometers and preferably less than 1 micrometer. The polymer particles are suspended in water to form an aqueous colloidal dispersion. The dispersion is useful as a stable catalyst system and particularly useful for complete electroless deposition of a conductive metal on printed circuit board surfaces and the walls of through-holes formed therein.
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申请公布号 |
US4719145(A) |
申请公布日期 |
1988.01.12 |
申请号 |
US19860833423 |
申请日期 |
1986.02.21 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
NEELY, JAMES W. |
分类号 |
C23C18/28;H05K3/18;H05K3/38;(IPC1-7):B01J31/00;B05D3/10;B05D5/12;B32B5/16 |
主分类号 |
C23C18/28 |
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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