Use of copolymers of polyoxyalkylene ethers of allyl and/or meth

Details Use of copolymers of polyoxyalkylene ethers of allyl and/or meth Use of copolymers of polyoxyalkylene ethers of allyl and/or meth

1984-10-26

1987-07-07

Terapane, John F.

Compositions

Preservative agents

Anti-corrosion

252358, 252340, 560189, 526320, B01D 1704, C07C 6966

Patent

active

046785990

ABSTRACT:
For demulsifying water containing crude oil, copolymers are used which are obtained by copolymerizing one or several polyoxyalkylene ether(s) of allyl and/or methallyl alcohol with vinyl esters of lower carboxylic acids or mixtures of vinyl esters of lower carboxylic acids with up to 50 mole percent of esters of acrylic or methacrylic acid or ethers of allyl or methallyl alcohol and fatty alcohols, the quotient of the average molecular weight of the polyoxyalkylene ethers corresponding to their molar fraction and the number of moles of the compounds to be copolymerized being 20 to 200, as demulsifiers for water containing crude oil.

REFERENCES:
patent: 2626924 (1953-01-01), DeGroote
patent: 4364777 (1982-12-01), Grunert et al.

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