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:
May. 17, 2011
Filed:
Jul. 29, 2005
Applicants:
Robert H. Pelton, Dundas, CA;
Chen LU, Cordova, TN (US);
Inventors:
Robert H. Pelton, Dundas, CA;
Chen Lu, Cordova, TN (US);
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08F 130/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polymeric compounds of formula I comprising boronic acid are provided. These polymeric compounds are prepared either by grafting boronic acid containing compounds (e.g. 4-carboxyphenylboronic acid) to hydrolysed poly(N-vinylformamide) or hydrolysing copolymer(s) obtained by copolymerizing vinyl group containing boronic acid monomers (e.g. -vinylphenyl boronic acid) and N-vinylformamide. These polymeric compounds are used in increasing the wet strength of paper in paper-making processes. Formula (I).