Addition products from ethylene oxide-propylene oxide block poly

Compositions – Preservative agents – Anti-corrosion

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Details

166268, 252 855R, 252319, 252345, 525407, 525523, B01D 1704, C08L 6300

Patent

active

044192657

ABSTRACT:
Addition products from ethylene oxide-propylene oxide block polymers of the formula ##STR1## wherein R denotes methyl or ethyl, n and m are numbers which are so chosen that the content of polyethylene oxide constitutes 5 to 80% of the molecular weight of the total molecule and p is a number larger than 10, and bis-glycidyl ethers of the formulae ##STR2## wherein the R.sup.1 's can be identical or different and denote hydrogen, C.sub.1 -C.sub.4 -alkyl or halogen, in particular chlorine, A denotes a direct bond, a sulfonyl or cyclohexyl group or a group of the formula ##STR3## R.sup.2 denotes hydrogen, methyl or phenyl and a denotes an integer from 0 to 10. These addition products are used for breaking petroleum emulsions.

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patent: 3544655 (1970-12-01), Booth
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patent: 3687894 (1972-09-01), Collings
patent: 4125382 (1978-11-01), O'Brien
patent: 4326968 (1982-04-01), Blair
patent: 4326984 (1982-04-01), Blair

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