Process for the flameproofing of textile materials

US4072776A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Fritz Linke · Königstein, DE
• Walter Dursch · Königstein, DE
• Hans-Jerg Kleiner · Kronberg, DE

Key dates

• Filing date: Oct 10, 1975
• Grant date: Feb 7, 1978
• Expiry date: Oct 10, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2697
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process for the flameproofing of fiber material, which comprises applying (meth-)acrylic acid-alkyl-esters of the general formula ##STR1## in which n and m are 0 or 1 and (n+m) are 0 or 1, and R.sub.1 stands for a saturated or unsaturated aliphatic hydrocarbon radical having from 1 to 8, preferably from 1 to 4 carbon atoms, which radical may also be substituted, preferably mono-substituted, by chlorine, bromine, the nitrile group, or the radicals --OR.sub.4 or --COOR.sub.4, R.sub.2 has the same meaning as R.sub.1 and -- for n= 0 and m= 1 -- may also be a group of the formula ##STR2## Z, Z.sup.1, Z.sup.2 represent straight-chain or branched (C.sub.1 -C.sub.3)-alkylene radicals which may also be substituted, preferably mono-substituted, by chlorine, bromine or the hydroxy group, X stands for a hydrogen, a chlorine or a bromine atom, a hydroxy or a methyl group, R.sub.3 represents a hydrogen atom or a methyl group, and R.sub.4 is a hydrogen atom or an alkyl group having from 1 to 8 carbon atoms, and R.sub.5 is a hydrogen atom, the methyl or the chloromethyl group, onto the fiber material, the said (meth-)acrylic acid-alkyl-esters being dissolved in an inert solvent, and subjecting t…