SURFACE MODIFIED KAOLIN PIGMENT AND METHOD THEREOF

Provided herein are surface treated pigments and methods of making and using the surface treated pigments. The surface treated pigments can comprise a mineral pigment surface treated with a hydrophilic latex composition and a hydrophobic material, which produce a film on an outer surface of the pigm...

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Bibliographische Detailangaben
Hauptverfasser:	GODFREY, James Robert, MATHUR, Sharad, KHOKHANI, Ashok, KAMAU, Wilson Wanene
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Provided herein are surface treated pigments and methods of making and using the surface treated pigments. The surface treated pigments can comprise a mineral pigment surface treated with a hydrophilic latex composition and a hydrophobic material, which produce a film on an outer surface of the pigment. The hydrophobic material can be selected from a silane, a siloxane, or a siloxane/silicone resin blend, wax, fatty acid, styrene-butadiene latex, or a mixture thereof. The hydrophilic latex composition can be selected from a straight (meth)acrylic latex emulsion, a styrene-(meth)acrylic latex emulsion, or a blend thereof. The surface treated pigment has a surface energy that is less than a surface energy of the mineral pigment alone, a water contact angle of at least 90° and a dodecane contact angle of less than 150°.