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, 1991
Filed:
Jun. 13, 1990
Applicant:
Inventors:
Gerald D Miller, Emmaus, PA (US);
Michael M Baas, KG Schalkwyk, NL;
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524503 ; 524425 ; 524446 ; 524557 ;
Abstract
A method for preparing a high solids, aqueous paper coating composition which comprises adding dry particulate solids of a partially hydrolyzed, low molecular weight polyvinyl alcohol to a high solids, aqueous paper coating composition and mixing without external heating until dissolved, preferably by mixing the polyvinyl alcohol solids into the aqueous pigment dispersion followed by the addition of binders and other additives to make the paper coating composition.