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특허 상세정보

Low viscosity, high solids content slurry

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C09C-001/42   
미국특허분류(USC) 106/469 ; 106/468 ; 106/486 ; 106/487 ; 106/DIG.4 ; 501/146
출원번호 US-0057944 (1998-04-09)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ross P.C.
인용정보 피인용 횟수 : 7  인용 특허 : 17

The present invention provides a high solids slurry and a method for producing the same. Specifically, the present invention provides a talc slurry having a solids content of at least about 58% and a viscosity of less than about 500 centipoise. The talc slurry of the present invention comprises talc, a salt and a base.


[ What is claimed is:] [1.] A method for producing a low viscosity high solids content phyllosilicate mineral slurry comprising the step of:(a) forming an aqueous composition by mixing water and a salt;(b) adding a feedstream of a phyllosilicate mineral to said aqueous composition at a rate and under conditions sufficient to produce the slurry with a substantially homogeneous high solids slurry; and(c) adding a caustic to said high solids slurry to obtain a pH of greater than about 10.2, rein the slurry comprises from about 15 ppm by weight to about 400 ...

이 특허에 인용된 특허 (17)

  1. Brown Alan J. (Vancouver WA). Agglomerates for use in making cellulosic products. USP1997105676746.
  2. Andersson Kjell (Goteborg SEX) Johansson Hans (Kungalv SEX) Lindgren Erik (Bohus SEX) Tokarz Marek (Kungalv SEX). Aqueous suspensions of colloidal particles, preparation and use of the suspensions. USP1997035607552.
  3. Kelley Edwin L. (Succasunna NJ). Binary deflocculating compositions. USP1988054742105.
  4. Curtis Jerry Leon (Milledgeville GA) House Lester William (Macon GA). Cationized pigments and their use in papermaking. USP1997075650003.
  5. Robinson Glenn N. (Naperville IL) McWright Gregory E. (Park City IL). Dispersing agents for comminuted solids. USP1994015279664.
  6. Almagro Guillermo A. (Aberdeen MD). High solids aqueous silica dispersion. USP1981024248600.
  7. Crawford Roger A. (Wadsworth OH) Krivak Thomas G. (Akron OH) Malloy Patrick G. (Menasha WI) Yang Da-Hung (Hudson OH). High solids aqueous silica slurry. USP1991075030286.
  8. Yordan Jorge L. (Sandersville GA) Collins David R. (Sandersville GA). High solids slurries of structured kaolin clay materials having improved high shear rheology and process for the manufac. USP1995065424259.
  9. Hoyt ; 4th Hazen L. (Niantic CT). Kaolin clay slurries of reduced viscosity. USP1982014309222.
  10. Abercrombie ; Jr. William F. (Macon GA). Method for controlling the viscosity of dispersed clay slurries. USP1979034144083.
  11. Gate Leonard F. (St. Austell GB2). Preparation of aqueous suspensions of talc. USP1984024430249.
  12. Horzepa ; John P. ; Potts ; David E.. Process for producing clay slurries. USP1978104118246.
  13. Bell David G. (St. Austell GB2) Gibson Keith R. (St. Austell GB2). Processing of kaolinitic clays at high solids. USP1980014186027.
  14. Koppelman Mitchell H. (North Plainfield NJ) Migliorini Ingrid K. (Linden NJ). Processing of kaolinitic clays at high solids under acidic conditions. USP1987034650521.
  15. Thompson Thomas D. (Flemington NJ) Gergel John F. (Perth Amboy NJ) Economou Peter (Millington NJ). Stable clay slurries. USP1983024374203.
  16. Shi Joseph C. S. (Bartow GA) Blue William H. (Wrightsville GA) Bruns Jeffrey C. (Sandersville GA). Stable high solids slurries of structured clay materials and process for the manufacture thereof. USP1996085543372.
  17. Sheridan Geoffrey P. (Manchester Urmston GB2). Talc dispersions. USP1980024187192.