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. 10, 1998
Filed:
Sep. 25, 1996
Applicant:
Inventors:
Michael J Brown, Newark, DE (US);
Teng-Shau Young, Wilmington, DE (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; C09D / ;
U.S. Cl.
CPC ...
1061628 ; 10620501 ; 10620571 ; 524 42 ; 524 43 ; 524 44 ; 524 45 ; 524 46 ; 524 47 ; 524 55 ;
Abstract
This invention relates to paper coating compositions comprising pigment, adhesive binder and rheology modifier wherein the rheology modifier comprises at least one of a) a mixture of guar and at least one other water-soluble polymer in sufficient amount to reduce the amount of guar adsorbed onto the pigment, or b) reduced molecular weight guar. The invention also relates to processes for making coated paper using the coating compositions, and to paper coated with the coating compositions.