Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups

Details Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups

1994-11-28

1997-01-07

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 91, 536 92, C08B 11193, C04B 2402, C04B 4000, C08L 128

Patent

active

055918441

ABSTRACT:
The present invention relates to alkyl hydroxyalkyl cellulose ethers which contain a sulfoalkyl group as a further substituent, to a process for the preparation of these cellulose ethers and to building material mixtures which are based on gypsum, hydrated lime or cement and contain alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups.

REFERENCES:
patent: 2583657 (1952-01-01), Lea et al.
patent: 2795508 (1957-06-01), Kaveler et al.
patent: 3357971 (1967-12-01), Klug
patent: 4990609 (1991-02-01), Herzog et al.
patent: 5177199 (1993-01-01), Kiesewetter et al.
patent: 5182380 (1993-01-01), Breckwoldt et al.
patent: 5395930 (1995-03-01), Bartz et al.

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