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:
Feb. 06, 1990
Filed:
May. 16, 1989
Jerry W Rayfield, Sylacauga, AL (US);
Robert Baker, Marietta, GA (US);
Kenneth E Weber, Pacific Palisades, CA (US);
ECCA Calcium Products, Inc., Atlanta, GA (US);
Abstract
Novel finely divided particulate calcium carbonate compositions comprising mixtures of a preponderance of dry ground calcium carbonate with a smaller amount of wet ground calcium carbonate, each of these components having particular particle size characteristics and particle size distributions, are disclosed. When used as all or part of the filler in thermosetting and thermoplastic resinous compositions, e.g., thermosetting polyester resinous molding compositions, paints and other finishes, sealants and the like, such mixtures provide compositions having high filler loadings coupled with acceptably low viscosities and better processability than resinous compositions containing all dry-ground fillers.