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. 24, 2005
Filed:
Apr. 25, 2003
Applicants:
Jeffrey Wilson Thornton, Huizen, NL;
Dorine Lisa Van Brussel-verraest, Boskoop, NL;
Arie Besemer, Amerongen, NL;
Sussan Sandberg, Onsala, SE;
Inventors:
Jeffrey Wilson Thornton, Huizen, NL;
Dorine Lisa Van Brussel-Verraest, Boskoop, NL;
Arie Besemer, Amerongen, NL;
Sussan Sandberg, Onsala, SE;
Assignee:
SCA Hygiene Products Zeist B.V., AJ Zeist, NL;
Primary Examiner:
Int. Cl.
CPC ...
C08D011/20 ; C08D031/18 ; C08D037/00 ; C08L001/00 ; C08L001/26 ; C08L003/00 ; C08L003/10 ; C08L005/00 ; D21H017/24 ; D21H017/25 ; D21H017/26 ; D21H017/28 ; D21H017/29 ; D21H017/45 ;
U.S. Cl.
CPC ...
Abstract
The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.