Process for flameproofing organic fibre material by the transfer process

US3991257A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Fritz Mayer
• Jorg Kern · Waldkraiburg, DE
• Hermann Nachbur · Dornach, CH

Key dates

• Filing date: Jun 18, 1974
• Grant date: Nov 9, 1976
• Expiry date: Jun 18, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31855
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process for flameproofing organic fiber material by the dry thermal transfer process is provided. In this process, a preparation is applied to an inert carrier which is then brought into contact with the fiber materials, especially polyamide, polyacrylonitrile or linear polyester fibers; thereafter the carrier and the material to be finished are subjected to a heat treatment at not less than 80.degree. C and the finished material is then separated from the carrier. The preparation which is applied in this process contain a phosphorus compound of the formula ##EQU1## wherein R.sub.1 and R.sub.2 are alkyl or halogenoalkyl, X is oxygen or --NH-- and Z is hydrogen, alkyl, hydroxyalkyl, halogenoalkyl, alkenyl or acyloxyalkyl.