Curtis K Manning

US Patent:

61030058, Aug 15, 2000

Filed:

Sep 10, 1999

Appl. No.:

9/202440

Inventors:

Edward J. Sare - Macon GA
Stephen C. Raper - Byron GA
Tommy L. Adkins - Cochran GA
Curtis L. Manning - Cochran GA

Assignee:

Imerys Kaolin, Inc. - Dry Branch GA

International Classification:

C04B 1410
C04B 3304

US Classification:

106486

Abstract:

The present invention provides compositions, and method for making same, comprising large particle size, calcined kaolin clays that, when used in paint formulations, provide paints having low sheen and good weathering resistance. Compositions of the invention include a composition comprising the pigment produced by a process comprising calcining a feed comprising kaolin having a median equivalent spherical diameter (e. s. d. ) as measured on a Sedigraph 5100 of greater than about 2. 0 microns and having. ltoreq. about 15% less than 0. 5 micron.