Process for the preparation of highly concentrated free-flowing aqueous solutions of betaines

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United States of America Patent

PATENT NO 5464565
SERIAL NO

08321141

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
EVONIK GOLDSCHMIDT REWO GMBHMAX-WOLF-STRASSE 7 STEINAU AN DER STRASSE 36396

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamann, Ingo Bad Orb, DE 12 77
Kohle, Hans-Jurgen Schluchtern, DE 20 248
Wehner, Winfried Neuhof, DE 6 45

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  • 8 Citation Count
  • C07D Class
  • 17.91 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3301248164581947613301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +010020030040050060070080090010001100120013001400

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