Sulfonated polyoxyalkylene ethers of 1,2 or 1,3-diols, their preparation and use

US4618457A · kind A · utility

Assignee

• Th. Goldschmidt. AG · DE

Inventors

• Eberhard Esselborn · Essen, DE
• Jurgen Fock · Goldkronach, DE

Key dates

• Filing date: Mar 1, 1985
• Grant date: Oct 21, 1986
• Expiry date: Mar 1, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/326
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Sulfonated polyoxyalkylene ethers of the formula EQU R.sup.1 CH.sub.2 O--(C.sub.2 H.sub.4 O--).sub.n (C.sub.3 H.sub.6 O--).sub.m CH.sub.2 CHR.sup.3 CH.sub.2 --SO.sub.3 X in which R.sup.1 is ##STR1## R2 is CH.sub.3 --, C.sub.2 H.sub.5 --, or C.sub.3 H.sub.7 --, R.sup.3 is H-- or CH.sub.3 --, X is H--, alkali metal or ammonium ion, n is 0 to 100, m is 0 to 50, and n+m is not less than 1. The compounds are prepared by adding a compound of formula HSO.sub.3 X in a known manner by a free radical reaction in the presence of catalysts and optionally at an elevated temperature to compounds of the formula EQU R.sup.1 CH.sub.2 O--(C.sub.2 H.sub.4 O--).sub.n (C.sub.3 H.sub.6 O--).sub.m CH.sub.2 CHR.sup.3 .dbd.CH.sub.2. The inventive compounds can be used as the only or a partial polyol component for the preparation of curable, polyurethane-based adhesives and increase the combined tensile and shear strength and the floating roller peel strength of the adhesive bonds.