Patent · US Expired

Production of dispersions of fine powders

US3951849A · kind A · utility

34Cited by
4References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 25, 1973
Grant dateApr 20, 1976
Priority date
Expiry dateJul 25, 1993

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01P2006/22
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A process for preparing a high solids paste dispersion of fine particle size solid material in a vehicle which comprises premixing the solid material with the vehicle and a deagglomerating agent. The proportions of solid material, vehicle and deagglomerating agent are such that the premix remains a dry discrete flowable powder. The premix is then passed through a colloid mill which converts the powder to a paste dispersion in the form of a coherent mass in one pass through the mill.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.