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Class Information
Number: 501/146
Name: Compositions: ceramic > Ceramic compositions > Clay containing (e.g., porcelain, earthenware, etc.) > Clay pretreatment > Chemical pretreatment
Description: Subject matter in which a pretreatment of the clay includes treatment thereof with a treating agent in addition to or other than water, which agent reacts chemically with the clay.

Sub-classes under this class:

Class Number Class Name Patents
501/147 Using alkaline compound treating agent 94
501/148 Using organic substance as treating agent 198

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8389447 Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties Mar. 5, 2013
7323429 Clay composition Jan. 29, 2008
7101821 Silicon composition Sep. 5, 2006
6905996 Method of making a ceramic article Jun. 14, 2005
6828370 Intercalates and exfoliates thereof having an improved level of extractable material Dec. 7, 2004
6811602 Process for preparing silicate porous product Nov. 2, 2004
6787592 Organoclay compositions prepared from ester quats and composites based on the compositions Sep. 7, 2004
6696377 Clay slurry Feb. 24, 2004
6552113 Polymer-clay nanocomposite comprising an amorphous oligomer Apr. 22, 2003
6548438 Method for processing clay ceramic materials Apr. 15, 2003
6537676 Waterproofing material and method of fabrication therefor Mar. 25, 2003
6462096 Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties containing said additives Oct. 8, 2002
6346145 Paints containing low sheen opacifying pigments obtained by flux calcination of kaolin clay Feb. 12, 2002
6156284 Processing procedure for transforming previously unusable clays and kaolin clays to low viscosity pigment Dec. 5, 2000
6136086 Low sheen opacifying pigments and manufacture thereof by calcination of kaolin clay Oct. 24, 2000
6136740 Porous inorganic particulate material Oct. 24, 2000
6093669 Method for selecting raw material for bleaching clay Jul. 25, 2000
6074473 Low viscosity, high solids content slurry Jun. 13, 2000
6068769 Aqueous dispersion slurry of inorganic particles and production methods thereof May. 30, 2000
6045657 Clay compositions and their use in paper making Apr. 4, 2000
6024790 Activation of swelling clays Feb. 15, 2000
6006920 Brightness, reduced impurity clays and methods of making same Dec. 28, 1999
5938833 Chemical process for fractionating mineral particles based on particle size Aug. 17, 1999
5908500 Activated clay composition and method Jun. 1, 1999
5891236 Process for improving the color and brightness of discolored goethite-containing materials Apr. 6, 1999
5843861 Process for the synthesis of kaolin clays having varying morphological properties Dec. 1, 1998
5840113 Treated clay product, methods of making and using and products therefrom Nov. 24, 1998
5830818 Process for the microwave beneficiation of discolored kaolin clay materials Nov. 3, 1998
5827362 Modified organoclays Oct. 27, 1998
5783511 Process for selecting raw material and making a bleaching clay Jul. 21, 1998
5779785 Stabilized, high solids, low viscosity smectite slurries, and method of preparation Jul. 14, 1998
5780376 Organoclay compositions Jul. 14, 1998
5749955 Clay activation with metal salts May. 12, 1998
5743952 Aqueous suspensions of inorganic materials Apr. 28, 1998
5731034 Method of coating paper Mar. 24, 1998
5707912 Process for the treatment of clay materials to provide slurries having improved rheological properties Jan. 13, 1998
5663111 Organoclay compositions Sep. 2, 1997
5584394 Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification process Dec. 17, 1996
5584925 Chemically aggregated kaolin clay pigment and process for making the same by phosphate bonding Dec. 17, 1996
5573583 Method of activation of clay and activated clay Nov. 12, 1996
5545599 Process for whitening kaolin Aug. 13, 1996
5543372 Stable high solids slurries of structured clay materials and process for the manufacture thereof Aug. 6, 1996
5532196 Inorganic resins, process for their preparation and materials for heat protection Jul. 2, 1996
5458680 Method of producing aggregated composite pigments using organic silicon compounds Oct. 17, 1995
5454865 Method for preparing refined kaolin in clay products Oct. 3, 1995
5429999 Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems Jul. 4, 1995
5423911 Coating pigment for cellulose - based printing media Jun. 13, 1995
5424259 High solids slurries of structured kaolin clay materials having improved high shear rheology and process for the manufacture thereof Jun. 13, 1995
5411587 Paper coating kaolin pigments their preparation and use May. 2, 1995

1 2 3

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