Patent · US Expired

Liquid thermostable phosphoric acid esters for the fiber conditioning

US4173679A · kind A · utility

3Cited by

4References

3Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Rolf Kleber · Neu-Isenburg, DE
Winfried Ehrl · Neuötting, DE

Key dates

Filing date	Dec 20, 1977
Grant date	Nov 6, 1979
Priority date	—
Expiry date	Dec 20, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2933
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Fiber conditioning agent containing a reaction product of polyphosphoric acid and an oxalkylate of C.sub.8-18 alkyl- or alkenylcarboxylic acids with 1 to 22 ethylene oxide units and having a content of free polyethylene glycol of less than 2% by weight, the reaction product being present in acidic form or in the form of its alkali metal salts. These fiber conditioning agents are applied by conventional methods. They show good antistatic properties, are stable to heat and show good lubricating and sliding properties.

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