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특허 상세정보

Stabilized kaolin slurry and methods for improving kaolin slurry stability

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C09C-001/42   
미국특허분류(USC) 106/400; 106/486
출원번호 US-0910295 (2010-10-22)
등록번호 US-8702860 (2014-04-22)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
인용정보 피인용 횟수 : 0  인용 특허 : 20
초록

Disclosed herein are stabilized kaolin slurries comprising a kaolin comprising no more than about 80% by weight of particles having an equivalent spherical diameter of less than 2 microns and at least one stabilizer, wherein the stabilized kaolin slurry has a 28-day pour test result of at least about 80% poured. Also disclosed are methods of making such stabilized kaolin slurries.

대표
청구항

1. A method of making a stabilized kaolin slurry, comprising: filtering and rinsing a kaolin slurry to remove salt residue therefrom until said resulting kaolin has a conductivity of no more than about 100 μS; resolubilizing said resulting kaolin to form a resolubilized slurry; and adding at least one stabilizer to the resolubilized slurry, wherein said stabilized kaolin slurry comprises kaolin having a shape factor of at least 25. 2. The method according to claim 1, wherein said stabilized kaolin slurry has a 28-day pour test result of at least 80% pour...

이 특허에 인용된 특허 (20)

  1. Brown Alan J. (Milledgeville GA) Shurling ; Jr. Dickey S. (Sandersville GA) Carswell Jenny S. (Milledgeville GA). Aggregated composite mineral pigments. USP1992015082887.
  2. Brown Alan J. (Milledgeville GA) Shurling ; Jr. Dickey S. (Sandersville GA) Carswell Jenny S. (Milledgeville GA). Aggregated composite mineral pigments. USP1993085236989.
  3. Gate Leonard F. (Cronwall GBX) Webb Terence W. (Cronwall GBX). Aspect radio measurement. USP1992075128606.
  4. Sennett Paul (Colonia NJ) Brown Steven A. (New Brunswick NJ). Cationic processing of kaolin ores. USP1991105061461.
  5. Jones J. Philip E. (Sandersville GA) Raythatha Rasik H. (Tennille GA). Coated paper and process. USP1989044820554.
  6. Fugitt Gary P. (Chillicothe OH) Whalen-Shaw Michael J. (Circleville OH) Uhrig Dale B. (Chillicothe OH) Taylor Dene H. (Holyoke MA). Deionized clay and paper coatings containing the same. USP1992035100472.
  7. Bekele Solomon. Film having modified surface characteristics through use of combination of spherical and lamellar particulates. USP1999075925454.
  8. Bundy ; Wayne M. ; Thompson ; Thomas D.. High bulking calcined clay pigments and methods of making the same. USP1978034078941.
  9. Pruett,Robert J.; Yuan,Jun; Golley,Christopher R. L.; Garska,Michael J.. Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension. USP2006107122080.
  10. Raythatha Rasik H. (Tennille GA). Kaolin aggregation using combination of organic and inorganic bases. USP1989024806167.
  11. Wada Mitsuo (Fuji JPX) Kanoe Toshio (Fuji JPX) Ishikawa Takayuki (Shimizu JPX). Liquid crystal polyester composition. USP1989124889886.
  12. Rice C. Arlyn (Sandersville GA). Method for forming aggregated kaolin pigment. USP1992095151124.
  13. Cobb Gary L. (Davisboro GA) Ginn Michael W. (Wrightsville GA) Broxton L. Gene (Sandersville GA). Method for producing high solids slurries of clay water products. USP1992035098583.
  14. Husband, John Claude; Payton, Desmond Charles; Renals, Michele Susan. Pigment products. USP2003096616749.
  15. Malla, Prakash B.; Devisetti, Siva. Pigments for ink jet paper. USP2003086610136.
  16. Matthews Kirt L. (Rock Hill SC) Thompson William E. (Sandersville GA). Process for producing a kaolin clay product. USP1993075227349.
  17. Sennett Paul (Colonia NJ). Use of high molecular weight sulfonate as auxiliary dispersants for structured kaolins. USP1989084859246.
  18. Nemeh Saad (Long Branch NJ) Sennett Paul (Colonia NJ) Slepetys Richard A. (Brick NJ). Use of mixture of high molecular weight sulfonates as auxiliary dispersant for structured kaolins. USP1988094772332.
  19. Wu Joseph H. Z. (Somerset NJ). Use of surfactants in processing abrasive pigments. USP1993085232881.
  20. Thompson, III, Thomas D.. Utilization of ion exchange resin in the processing of kaolins. USP1984054451440.