Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1989-09-12
1991-04-23
Lawrence, Evan
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 27, 427335, B05D 104, B05D 304, B05D 310
Patent
active
050099213
ABSTRACT:
In the finishing of leather by spray application in an electrostatic field it is possible to use highly concentrated solutions if these solutions are sprayed into a solvent atmosphere in the presence of inert gases. The finishing process utilizes a solvent atmosphere which has a solvent content of 15-90% of the saturation concentration and a residual oxygen content of less than 10% by volume. The finishes contained are immediately stackable. By working with concentrated solutions it is possible to recycle the solvent from the waste air in an economically acceptable manner.
REFERENCES:
patent: 4484812 (1984-05-01), Lauke
Hummel Axel
Muller Hans-Werner
Strenger Heinrich
Traubel Harro
Weber Karl A.
Bayer Aktiengesellschaft
Lawrence Evan
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