Patent · US Expired

Sizing agent and use thereof

US4784727A · kind A · utility

9Cited by

4References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wolf-Dieter Schroer · Leverkusen, DE
Joachim Probst · Leverkusen, DE
Ingeborg Kolb · Leverkusen, DE
Ulrich Beck · Bornheim, DE
Peter Mummenhoff · Cologne, DE
Heinz Baumgen · Leverkusen, DE

Key dates

Filing date	Jan 20, 1983
Grant date	Nov 15, 1988
Priority date	—
Expiry date	Jan 20, 2003

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H17/455
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A sizing agent which contains from 1 to 60 parts, by weight, of a fixing and sizing accelerating agent and from 0 to 80 parts, by weight, of conventional auxiliaries per 10 parts by weight of hydrophobic, cellulose-reactive sizing materials, the fixing and sizing accelerating agent being a polymer composed of linear or branched carbon chains, to which primary, secondary or tertiary amino and/or quaternary ammonium groups are bound directly or by side chains exhibits a thorough and rapid sizing effect, in particular in the better sizing of paper.

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