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. 12, 1981
Filed:
Oct. 15, 1979
Applicant:
Inventors:
Assignee:
Wolff Walsrode Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
210736 ; 1621 / ; 210705 ; 210928 ; 525430 ;
Abstract
An auxiliary for improving the retention of flushable solids, for accelerating the dewatering of suspensions and for more rapidly working up industrial waters, effluents and sludges by the addition of a basic water-soluble polymer being produced by reacting (a) an aliphatic polyethylene glycol ether amine and (b) a basic polyamino amide to form an intermediate product and (c) reacting said intermediate with an epihalohydrin, dihaloalkane, glyoxal-bis-acrylamide, bis-acrylamidoacetic acid, acrylamidoglycolic acid or tetraalkyloxyethane.