Title:
【発明の名称】レオロジー添加剤の製造方法、及びその添加剤を組み入れた塗料組成物
Document Type and Number:
Japanese Patent JP2001512518
Kind Code:
A
Abstract:
An improved process for preparing an aqueous clay slurry having superior gellation properties. The process involves the bead milling of the clay in an aqueous medium for a period of about 0.5 to 20 minutes at an energy input level of about 44 to 146 kilowatt-hours per metric ton of dry clay. The milling may carried out using any suitable horizontal or vertical sand mill or ball mill such as the "Morehouse Cowles Sandmill" or the "Polymill" containing a grinding medium such as zirconium silicate or zirconium oxide. The clay is preferably a smectite clay such as montmorillonite and is present in the slurry in the range of about 3 to 30 wt. %, based on the total weight of the slurry. The aqueous clay slurry is useful as a rheological additive in water-based coating formulations.
Inventors:
Benjamin W Knessek
Terencepee Brennan
Karl Jay Bower
Terencepee Brennan
Karl Jay Bower
Application Number:
JP53683298A
Publication Date:
August 21, 2001
Filing Date:
February 18, 1998
Export Citation:
Assignee:
Southern Clay Products Inc.
International Classes:
C09C1/42; C09C3/04; C09D7/00; C08K3/00; C09D7/12; C09D201/00; (IPC1-7): C09D201/00; C08K3/00; C09D7/12
Attorney, Agent or Firm:
Shogo Onishi