Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2009-05-22
2011-12-13
Bernshteyn, Michael M (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S444000, C524S447000, C524S451000, C524S556000, C106S400000, C106S436000, C106S464000, C106S469000, C106S484000
Reexamination Certificate
active
08076403
ABSTRACT:
The process of the present invention produces an aqueous dispersion of mineral materials, suitable for use in pigments and other coatings, by introducing a fully neutralized dispersing agent to an aqueous dispersion of coarse mineral materials, grinding the aqueous dispersion and, during grinding, adding a partially neutralized dispersing agent to the aqueous dispersion. The process of the present invention produces aqueous dispersions of very fine particles, having a solids content of at least 75% by weight, based on the total weight of the aqueous dispersion, and wherein 95% or more of the particles are below 2 microns.
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Creamer Marianne
Krasnansky Robert
Manna Joseph
Santos Daniele Cristina
Bernshteyn Michael M
Bodner Marcella M.
Rohm and Haas Company
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