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:
Apr. 01, 1980
Filed:
Nov. 15, 1976
Applicant:
Inventor:
William Windle, Cornwall, GB;
Assignee:
English Clays Lovering Pochin & Co., St. Austell, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C09H / ; C09J / ;
U.S. Cl.
CPC ...
106137 ; 106214 ; 260 / ;
Abstract
A paper coating composition which comprises a dispersion of a pigment in an aqueous medium containing an adhesive, the pigment comprising a natural chalk whiting formed from the remains of coccoliths which has been processed so as to contain at least 60% by weight of particles smaller than 2 microns equivalent spherical diameter, not more than 5% by weight of particles larger than 10 microns equivalent spherical diameter and not more than 0.5% by weight of particles larger than 53 microns.