The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2002
Filed:
Mar. 29, 2001
Jerome Michael Harris, Penllyn, PA (US);
Daniel Alain Saucy, Harleysville, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
The present invention relates to a method and apparatus for determining the dispersion stability of a liquid suspension. The method of the present invention includes exposing the liquid suspension to one or more appropriate wavelengths of light while maintaining insoluble particles in the liquid suspension uniformly suspended, and determining the amount of light scattered by the liquid suspension to assess the dispersion stability of the liquid suspension. The present invention also provides an apparatus for carrying out the method of the present invention. The method and apparatus of the present invention can be used, for example, to determine the effect that an additive has on the dispersion stability of a liquid suspension without having to wait for the liquid suspension to phase separate.