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:
Jun. 07, 1988
Filed:
Jul. 14, 1986
Applicant:
Inventors:
Werner Lange, Visselhoevede, DE;
Branislav Bohmer, Walsrode, DE;
Assignee:
Wolff Walsrode Aktiengesellschaft, Walsrode, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252-8514 ; 252-851 ; 526264 ; 526288 ;
Abstract
Water-soluble polymers consisting of from 40 to 80 mole percent of residues corresponding to the following formula (I) ##STR1## in which X.sup..sym. is a cation or H.sup..sym., from 10 to 30 mole percent of residues corresponding to the following formula (II) ##STR2## from 0 to 30 mole percent of residues corresponding to the following formula (III) ##STR3## and from 0 to 10 mole percent of residues corresponding to the following formula (IV) ##STR4## residues I to IV being statistically distributed in the polymer and the sum of the mole % of I-IV always having to amount to 100.