Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl substi

Details Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl substi Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl substi

1993-06-07

1995-03-07

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 90, 536 91, C08B 11193, C08B 1110, C04B 2438

Patent

active

053959302

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.

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