公开(公告)号：WO1996006807A1

公开(公告)日：1996-03-07

申请号：PCT/US1995010436

申请日：1995-08-17

Applicant: THIELE KAOLIN COMPANY

Inventor： THIELE KAOLIN COMPANY ,  ARRINGTON-WEBB, Lee, Ann ,  MALLA, Prakash, B.

IPC: C04B14/00

CPC classification number: C09C1/42 ,  C01P2006/22 ,  C01P2006/60 ,  C01P2006/64

Abstract: An opacifying kaolin clay pigment with improved rheological properties and good opacifying characteristics is manufactured by a process which comprises reacting a mixture of water, kaolin clay and calcium carbonate with a hydroxide component at a temperature of at least 60 DEG C.

Abstract translation: 通过包括使水，高岭土和碳酸钙的混合物与氢氧化物组分在至少60℃的温度下反应的方法制备具有改善的流变性和良好的不透明特性的不透明高岭土颜料。

公开(公告)号：WO1990012765A1

公开(公告)日：1990-11-01

申请号：PCT/US1990002157

申请日：1990-04-20

Applicant: THIELE KAOLIN COMPANY

Inventor： THIELE KAOLIN COMPANY ,  SHI, Joseph, C., S. ,  CURTIS, Jerry, L. ,  SALTER, Timothy, L.

IPC: C04B14/10

CPC classification number: C09C1/42 ,  C01P2006/60 ,  D21H17/68 ,  D21H19/40

Abstract: An opacifying pigment with enhanced light scattering properties for use as a paper coating or filler material is produced by reacting kaolin in the presence of water with sodium hydroxide or potassium hydroxide at a temperature in excess of 60°C. The kaolin is reacted with the hydroxide in a concentration to produce a molality of at least 0.1.