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:
Dec. 17, 2002
Filed:
Apr. 29, 1999
Applicant:
Inventors:
Rajiv Bazaj, Stamford, CT (US);
Gerald Guerro, Trumbull, CT (US);
David Dauplaise, Stamford, CT (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M 1/5233 ; D06M 1/5263 ; D06M 1/5285 ; D21H 1/737 ; D21H 1/741 ;
U.S. Cl.
CPC ...
D06M 1/5233 ; D06M 1/5263 ; D06M 1/5285 ; D21H 1/737 ; D21H 1/741 ;
Abstract
A paper or board is coated with a composition comprising from 30-95 parts by weight of a synthetic, carboxylated surface size containing at least about 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene/acrylic acid copolymer, and from 5-70 parts by weight of a substantially hydrophilic polyacrylamide such as a cationic or anionic polyacrylamide.