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:
Mar. 01, 1977
Filed:
Nov. 13, 1974
Applicant:
Inventors:
Pierre Canard, Versailles, FR;
Albert Levy, Orly, FR;
Assignee:
Rhone-Progil, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; D21H / ;
U.S. Cl.
CPC ...
428327 ; 260-8 ; 260 / ; 260 / ; 260 / ; 260 / ; 427391 ; 428330 ; 428476 ; 428477 ; 428478 ; 428511 ; 428514 ; 428512 ; 428513 ; 428533 ; 428539 ; 428537 ;
Abstract
A paper or cardboard coating composition comprising an aqueous dispersion containing binder and pigment in which 5-30 percent by weight of the pigment are particles dimensioned within the range of 0.05-0.3 microns of a non-film forming synthetic polymer and in which 70-95 percent by weight of the pigment is calcium carbonate.