Process for preparing a pumpable surface-active product based on

Details Process for preparing a pumpable surface-active product based on Process for preparing a pumpable surface-active product based on

1981-08-18

1983-12-20

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562587, 26050113, C07C 5966, C07C 5910

Patent

active

044219300

ABSTRACT:
A process for preparing a pumpable surface active product based on polyether acetic acid is described, wherein 1-10% water and an acid is added to a crude reaction mixture obtained by reacting in an alkaline medium an adduct of the formula RO--(C.sub.2 H.sub.4 O).sub.x H with a compound Hal--CH.sub.2 COOM, wherein R is a hydrophobic, aliphatic or aliphatic-aromatic residue, x is a number having an average value of 0.5-10, Hal is a halogen atom and M represents an alkali metal, the amount of acid added being such that a 10-percent aqueous solution of the product shows a pH of 4-7. Preferably about 7% of water is added and also it is preferred to add so much acid that a pH of about 5-6 is obtained.

REFERENCES:
patent: 2516611 (1950-07-01), Berhenke et al.
patent: 2623900 (1952-01-01), Hofer
patent: 3565844 (1971-02-01), Grace
patent: 3959460 (1976-05-01), Vanlergerghe
patent: 3992443 (1976-11-01), Springmann

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