Polyetheresterols, their preparation, and their use in polyurethanes
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United States of America Patent
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Jan 30, 1996
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N/A
app pub date -
Jul 10, 1995
filing date -
Dec 9, 1992
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Abstract
The invention relates to polyetheresterols obtained by condensation of a polyfunctional carboxylic acid with an alcohol component, wherein the alcohol component comprises a mixture of alkanediols and etherdiols of the formula ##STR1## where m=1 to 3 n.gtoreq.3 and R.sup.I, R.sup.II, R.sup.III and R.sup.IV are identical or different and, independently of one another, are hydrogen or C.sub.1 - to C.sub.4 -alkyl, and the ratio between ether and ester groups in the polyetheresterol is in the range from 0.3:1 to 1.5:1, which are suitable, in particular, for the preparation of polyurethanes having reduced fogging.
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