Polyetheramines with polymers of .alpha., .beta.-unsaturated dicarboxylic acids

US5705603A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Matthias Krull · Harxheim, DE
• Michael Feustel · Kelkheim, DE
• Erdmann Mielcke · Bad Soden, DE

Key dates

• Filing date: Jun 22, 1995
• Grant date: Jan 6, 1998
• Expiry date: Jun 22, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/2437
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to reaction products of polyetheramines with polymers containing dicarboxylic anhydride groups, which contain 20-80, preferably 40-60, mol % of bivalent structural units A and/or C and, if required, B ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are hydrogen or methyl, a and b are equal to zero or one and a+b is equal to one, Y is X or NRR.sup.3, X is --OH, --O--C.sub.1-30 -alkyl, NR.sup.3 R.sup.4 or --O.sup..crclbar. N.sup..sym. R.sup.3 R.sup.4, R.sup.3 and R.sup.4, independently of one another, are hydrogen, C.sub.6 -C.sub.40 -alkyl or R, R is ##STR2## with the proviso that at least 1 mol % of the anhydride groups bonded to the polymer have reacted with a polyetheramine, Z is C.sub.2 -C.sub.4 -alkyl, n is a number from 1 to 1000, R.sup.5 is hydrogen, C.sub.1 -C.sub.30 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl or C.sub.6 -C.sub.30 -aryl and R.sup.6 is hydrogen or C.sub.1 -C.sub.4 -alkyl, preferably methyl, and 80-20 mol %, preferably 60-40 mol % of bivalent structural units D ##STR3## in which R.sup.7 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sup.8 is C.sub.1 -C.sub.60 -alkyl or C.sub.6 -C.sub.18 -aryl.