Patent · US Expired

Water soluble polymer dispersions

US5403883A · kind A · utility

47Cited by

2References

11Claims

0Family size

Assignee

Roehm GmbH Chemische Fabrik · DE

Inventors

Bernfried Messner · Greensboro, US
Peter Quis · Darmstadt, DE
Guenter Schmitt · Darmstadt, DE
Gabriele Silva · Darmstadt, DE
Manfred Braum · Mainz, DE

Key dates

Filing date	May 13, 1993
Grant date	Apr 4, 1995
Priority date	—
Expiry date	May 13, 2013

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H17/34
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to aqueous dispersions of water soluble polymers, formed by polymerization of a mixture A of various monomer components (a1, a2, and possibly a3) in the presence of a polymeric dispersant D; wherewith the mixture A is comprised of the following different monomer PA1 a1 (in the amount of 99-70 wt. %), comprised of at least one water soluble monomer, PA1 a2 (in the amount of 1-30 wt. %), comprised of at least one hydrophobic monomer, and (possibly) PA1 a3 (in the amount of 0-20 wt. %), comprised of at least one amphipathic monomer, wherewith in each instance the sum of the amounts of a1, a2, and a3 is 100%; and wherewith the water soluble polymers have a mean molecular weight M.sub.w (gravimetric mean) of at least 10.sup.6 Dalton.

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