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:
Jul. 02, 1991
Filed:
Sep. 06, 1989
Applicant:
Inventor:
David G Jeffs, St. Austell, GB;
Assignee:
ECC International Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428323 ; 427221 ; 428407 ; 523205 ; 523206 ; 523209 ; 523334 ; 523342 ;
Abstract
A process for preparing an inorganic filler comprises admixing a particulate inorganic material with a natural or synthetic latex composition and an aqueous suspension of fine carbon black, and dewatering and drying the resultant mixture, the amount of the natural or synthetic latex composition added being such as to provide a coating on the inorganic mineral of from 1% to 10% by weight of latex solids based on the weight of dry inorganic material.