Methyl hydroxypropyl cellulose ethers

Details Methyl hydroxypropyl cellulose ethers Methyl hydroxypropyl cellulose ethers

1976-02-20

1978-06-20

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 95, C08B 11193

Patent

active

040963250

ABSTRACT:
This disclosure relates to the production of methyl hydroxypropyl cellulose ethers having a degree of molar substitution (M.S.) of greater than 2. The methyl hydroxypropyl cellulose ethers are prepared at low cost under mild conditions and are particularly useful in gelling organic solvents having a solubility parameter of 8 - 16. They also have compatibility for mixtures of organic solvents and water and are helpful in gelling such solutions when the percentage of water in such mixtures is up to about 60%.

REFERENCES:
patent: 2265913 (1941-12-01), Lilienfeld
patent: 2306451 (1942-12-01), Lilienfeld
patent: 2831852 (1958-04-01), Savage
patent: 3251824 (1966-05-01), Battista
patent: 3278521 (1966-10-01), Klug
patent: 3388082 (1968-06-01), Rodgers et al.
patent: 3453261 (1969-07-01), Scherff
patent: 3709876 (1973-01-01), Glomski et al.
patent: 3839319 (1974-10-01), Greminger et al.
patent: 3926951 (1975-12-01), Lindenfors et al.
patent: 3940384 (1976-02-01), Teng et al.

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