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Class Information
Number: 501/149
Name: Compositions: ceramic > Ceramic compositions > Clay containing (e.g., porcelain, earthenware, etc.) > Clay pretreatment > Water pretreatment
Description: Subject matter wherein the clay is treated with water which does not contain a chemical treating agent.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7067445 Extended particle size distribution ceramic fracturing proppant Jun. 27, 2006
6811602 Process for preparing silicate porous product Nov. 2, 2004
6780804 Extended particle size distribution ceramic fracturing proppant Aug. 24, 2004
6696377 Clay slurry Feb. 24, 2004
6602341 Treating kaolinitic clays Aug. 5, 2003
6186335 Process for beneficiating kaolin clays Feb. 13, 2001
5891236 Process for improving the color and brightness of discolored goethite-containing materials Apr. 6, 1999
5810998 Process for improving the brightness of fine-grained kaolin clays Sep. 22, 1998
5743952 Aqueous suspensions of inorganic materials Apr. 28, 1998
5674315 Process for preparing a meta-kaolin white pigment from kaolinite Oct. 7, 1997
5573658 Low brightness functional pigment from process by-product Nov. 12, 1996
5529622 Process for treatment of clay for use as a paper coating pigment Jun. 25, 1996
5522924 Method for producing high brightness low abrasion calcined kaolin pigment Jun. 4, 1996
5458680 Method of producing aggregated composite pigments using organic silicon compounds Oct. 17, 1995
5427990 Method of Improving absorption of salt water by water-swellable clay by redrying Jun. 27, 1995
5426079 Method of improving water-swellable clay properties by re-drying, compositions and articles Jun. 20, 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
5385239 Low brightness functional pigment from process by-product Jan. 31, 1995
5371051 Method for producing high opacifying kaolin pigment Dec. 6, 1994
5358120 Selective separation of finely-divided minerals by addition of selective collector reagent and centrifugation Oct. 25, 1994
5318953 Method of improving water-swellable clay properties by re-drying, compositions and articles Jun. 7, 1994
5311997 Selective separation of finely-divided minerals by addition of selective collector reagent and centrifugation May. 17, 1994
5312807 Method of improving absorption of salt water by water-swellable clay by redrying May. 17, 1994
5298066 Method of producing aggregated kaolinite pigment using organic silicon compounds Mar. 29, 1994
5266539 Process for the deferrization of kaolin, quartzose sand, paper filler, white pigment, pumice and electronics materials Nov. 30, 1993
5242874 Process for whitening kaolin Sep. 7, 1993
5232495 Method of producing aggregated kaolinite pigment using organic silicon compounds Aug. 3, 1993
5227349 Process for producing a kaolin clay product Jul. 13, 1993
5171725 Method for preparing aqueous mineral suspensions Dec. 15, 1992
5168083 High opacity defined kaolin product and method of producing same Dec. 1, 1992
5147458 Structured pigment from high TiO.sub.2 /Fe.sub.2 O.sub.3 kaolinite reject material Sep. 15, 1992
5114893 Method of improving water-swellable clay properties by re-drying, compositions and articles May. 19, 1992
5102837 Process for the preparation of opaliform porcellanite Apr. 7, 1992
5100472 Deionized clay and paper coatings containing the same Mar. 31, 1992
5034062 Use of acid-containing anionic emulsion copolymers as calcined clay slurry stabilizers Jul. 23, 1991
4981824 Novel ceramic material, method for the preparation thereof and ceramic shaped body obtained therefrom Jan. 1, 1991
4929580 Process for treating clay minerals May. 29, 1990
4916094 Method for producing high solids kaolin slurry Apr. 10, 1990
4888315 High solids blended kaolin clay slurry Dec. 19, 1989
4880759 Ball clay slurry Nov. 14, 1989
4812260 Process for production of mineral dispersions Mar. 14, 1989
4792539 Process for producing clay derivatives having a porous structure and novel clay derivatives obtained by the process Dec. 20, 1988
4743305 Organoclays May. 10, 1988
4631091 Method for improving the dispersibility of organoclays Dec. 23, 1986
4623398 Organo-clays Nov. 18, 1986
4618374 High solids processing of kaolinitic clays with post-leaching oxidation Oct. 21, 1986
4391733 Mineral treatment and composition Jul. 5, 1983
4301214 Low thermal expansion ceramic and process Nov. 17, 1981
4273585 Sealing glass Jun. 16, 1981

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