Patent · US Expired

Water-soluble cross-linkable copolymers

US6117960A · kind A · utility

5Cited by

5References

20Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Klaus Kohlhammer · Marktl, DE
Gerhard Koegler · Altötting, DE
Peter Ball · Emmerting, DE
Monika Rockinger · Unterneukirchen, DE
Walter Dobler · Schwetzingen, DE

Key dates

Filing date	Sep 4, 1998
Grant date	Sep 12, 2000
Priority date	—
Expiry date	Sep 4, 2018

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06M2200/40
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention concerns water-soluble cross-linkable copolymers having a molecular weight of .ltoreq.500000 and comprising a) between 20 and 95 wt. % sulphonic-acid- or sulphonate-group-containing monomer units; b) between 4 and 80 wt. % N-methylol- or N-alkoxymethyl-group containing monomer units; and c) between 0.1 and 20 wt. % hydrophobic monomer units selected from the group comprising water-insoluble ethylenically unsaturated compounds and hydrophobic end groups of initiator radicals or regulator molecules, the portions in wt. % being relative to the total weight of the copolymer. The portion of sulphonic-acid- or sulphonate-group-containing monomer units can optionally be substituted by up to 50 wt. %, relative to the portion by weight of monomer units a), by carboxyl-group-containing monomer units d) or amide-group-containing monomer units e).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.