Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1990-02-23
1990-10-09
Pianalto, Bernard
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427128, 427132, H01F 1002
Patent
active
049619594
ABSTRACT:
There is disclosed the use of a quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment particles in the preparation of magnetic recording media. The dispersant of the present invention can bind to the pigment particles and may be substituted for conventional phosphate ester dispersants which are incapable of binding to the pigment and tend to migrate to the surface of such media, thereby adversely affecting recording media performance.
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Sylvester Judith M.
Vincent Gary A.
Vincent Harold L.
Dow Corning Corporation
Pianalto Bernard
Weitz Alexander
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