Water swellable poly(alkylene oxide)

Details Water swellable poly(alkylene oxide) Water swellable poly(alkylene oxide)

1974-10-30

1976-06-15

Cockeram, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 2A, 260 2BP, C08L 7102

Patent

active

039638057

ABSTRACT:
A process for producing water swellable poly(alkylene oxide) which comprises introducing into a reaction zone an admixture of poly(alkylene oxide) having a molecular weight of at least 100,000 and an inert hydrocarbon solvent containing a free radical catalyst; adding to said reaction zone acrylic acid, heating said reaction zone at a temperature within the range of about 40.degree.C to about 100.degree.C for a time sufficient to produce said water swellable poly(alkylene oxide), and thereafter recovering said water swellable poly(alkylene oxide) from said reaction zone.

REFERENCES:
patent: 3033841 (1962-05-01), Germain
patent: 3281499 (1966-10-01), Dolce et al.
patent: 3627839 (1971-12-01), Vandenberg
patent: 3763277 (1973-10-01), Chu et al.

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