Patent · US Expired

Highly-concentrated aqueous polyacrylonitrile emulsions and a method for their preparation

US5356985A · kind A · utility

11Cited by

3References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Gunter Sackmann · Leverkusen, DE
Siegfried Korte · Odenthal, DE
Heinrich Alberts
Rolf-Volker Meyer · Krefeld, DE

Key dates

Filing date	Sep 20, 1993
Grant date	Oct 18, 1994
Priority date	—
Expiry date	Sep 20, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F20/44
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to aqueous emulsions of polymers which contain 80 to 100 weight % of acrylonitrile polymerized within them, to a method for their preparation, and to their use as raw materials for acrylic and modacrylic fibres and as dyeing additives for adjusting the dyestuff affinity of cationic dyestuffs for conventional acrylic and modacrylic polymers and fibre materials produced from them.

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