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. 19, 1991
Filed:
Oct. 30, 1989
Applicant:
Inventors:
Thomas G Majewicz, Kennett Square, PA (US);
Teng-Shau Young, Wilmington, DE (US);
Assignee:
Aqualon Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
106169 ; 106774 ;
Abstract
Hydroxyalkylcellulose hydrophobically modified with a C12 to C16 alkyl or aralkyl group represents a preferred thickener for a paper coating composition to obtain uniform coating at high speed. The process for manufacture involves: preparing an aqueous coating composition of hydrophobically modified hydroxyethylcellulose, pigment binder and other additives; applying the composition to a paper surface; removing excess composition to produce a uniform coating; and drying to produce a paper product.