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:
Aug. 28, 2001
Filed:
Dec. 30, 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 ...
C08L 3/302 ; C08L 3/320 ; C08L 3/326 ; D06M 1/500 ; D21H 2/5102 ;
U.S. Cl.
CPC ...
C08L 3/302 ; C08L 3/320 ; C08L 3/326 ; D06M 1/500 ; D21H 2/5102 ;
Abstract
A composition useful in paper and board making comprises a carboxylated surface size containing at least 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene-(meth)acrylic aicd copolymers or styrene-maleic acid (anhydride or salt) copolymers, a hydrophilic polyacrylamide and a crosslinking agent such as glyoxylated vinylamide polymers, formaldehyde, melamine-formaldehyde condensates and glyoxyl-extended materials.