Process for preparation of highly concentrated free-flowing aque

Details Process for preparation of highly concentrated free-flowing aque Process for preparation of highly concentrated free-flowing aque

1997-11-24

1999-10-05

Kumar, Shailendra

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

Organic compounds

Fatty compounds having an acid moiety which contains the...

252355, 252357, 252546, 252DIG7, 510123, 510158, 510490, 510535, 560 1, 560100, 560110, 560122, 560253, 562553, 554 52, 554 68, 564138, 564141, C07C23100

Patent

active

059627085

ABSTRACT:
The invention relates to a process for the preparation of highly concentrated free-flowing and pumpable aqueous solutions of betaines by quaternization of a compound which contains tertiary amine nitrogen with a .omega.-halo carboxylic acid characterized in that 0.5-5% by weight of the final product, of a viscosity-reducing compound such as an alkali or alkaline earth metal citric acid salt is added to the reaction mixture before or during the quaternization reaction.

REFERENCES:
patent: 4832871 (1989-05-01), Bade
patent: 5354906 (1994-10-01), Weitemeyer et al.
patent: 5464565 (1995-11-01), Hamann et al.
patent: 5470992 (1995-11-01), Gruning et al.
patent: 5681972 (1997-10-01), Hamann et al.

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