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특허 상세정보

Kaolinite aggregation using sodium silicate

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C04B-014/00    C04B-033/04    C09C-003/00    D21F-001/00   
미국특허분류(USC) 106/468 ; 106/84 ; 106/486 ; 501/146
출원번호 US-0149638 (1988-01-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 4
초록

A process is described in which a structured aggregated kaolin pigment is prepared by mixing substantially dry kaolin in particulate form with an aqueous alkali metal silicate to deposit on the surface of the kaolin particles a substantially molecular level of said silicate without formation of silica gel, drying the treated kaolin without calcination and exposing it to an acidic gas. The product is useful as a pigment in the coating or filling of paper.

대표
청구항

A process for producing a structured aggregated kaolin pigment useful for improving optical properties when incorporated in paper which comprises the steps of mixing a substantially dry kaolin in particulate form with an aqueous alkali metal silicate to deposit on the surface of the kaolin particles a molecular level of silicate without formation of a silica gel, drying the treated kaolin and exposing it to an acidic gas.

이 특허를 인용한 특허 피인용횟수: 13

  1. Maxwell Chris B. (Evans GA) Malla Prakash B. (Martinez GA). Chemically aggregated kaolin clay pigment and process for making the same by phosphate bonding. USP1996125584925.
  2. Lorusso,Marielle. Kaolin products and their use. USP2008087413601.
  3. Hen John ; Young Ray ; Ginez Andres ; Mathur Sharad. Low sheen opacifying pigments and manufacture thereof by calcination of kaolin clay. USP2000106136086.
  4. Dunaway Weyman H. (Sandersville GA) Verbov Lev F. (Milledgeville GA). Method for forming aggregated kaolin pigment. USP1990124976786.
  5. Raythatha Rasik H. (Kingwood TX) Suitch Paul R. (Milledgeville GA) Andrews E. Wayne (Sandersville GA). Method for reducing the abrasion of calcined clay. USP1991065022924.
  6. Husband John Claude,GBX. Method of coating paper. USP1998035731034.
  7. Dunaway Weyman H. (Sandersville GA) Verbov Lev F. (Milledgeville GA). Method of preparing aggregated pigments from clays. USP1990114971629.
  8. Arrington-Webb Lee A. (Sandersville GA) Malla Prakash B. (Martinez GA). Opacifying kaolin clay pigments having improved rheology and process for the manufacture thereof. USP1996125584924.
  9. John Hen ; Ray Young ; Andres Ginez ; Sharad Mathur. Paints containing low sheen opacifying pigments obtained by flux calcination of kaolin clay. USP2002026346145.
  10. Gary M. Freeman ; Sung-Tsuen Liu. Paper or paper board coating composition containing a structured clay pigment. USP2002066402827.
  11. Tallentire Alan,GBX ; Sinclair Colin Samuel,GBX. Porous webs. USP1998055747110.
  12. Rademachers Jakob,DEX ; Teichmann Gunther,DEX. Process for colouring building materials. USP2001086270566.
  13. Virtanen, Pentti. Reinforced porous fibre product. USP2013018354003.