Process for the preparation of highly concentrated free-flowing

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

1994-10-11

1995-11-07

Lieberman, Paul

Compositions

Fluent dielectric

N-containing

252DIG7, 562553, 554 52, 554 68, C11D 190, C07D20912

Patent

active

054645654

ABSTRACT:
The invention relates to a process for the preparation of highly concentrated free-flowing aqueous solutions of betaines, which is characterized in that at least one of the compounds of the general formula (I) ##STR1## is added to the reaction mixture before or during the quaternization reaction; wherein R, R.sup.1, R.sup.2, are each C.sub.1 -C.sub.10 alkyl, optionally substituted with hydroxyl, and n is 1-3.

REFERENCES:
patent: 3225074 (1965-12-01), Cowen et al.
patent: 4246131 (1981-01-01), Lohr
patent: 4357421 (1983-03-01), Rubin et al.
patent: 4497825 (1985-02-01), Bade
patent: 4832871 (1989-05-01), Bade
patent: 4861517 (1989-09-01), Bade
patent: 5354906 (1994-10-01), Weitemeyer et al.

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