Copolymers of N,N-dimethylacrylamide and acrylamide

Details Copolymers of N,N-dimethylacrylamide and acrylamide Copolymers of N,N-dimethylacrylamide and acrylamide

1978-11-17

1981-03-03

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

166335, 252 855D, C08F22054

Patent

active

042542499

ABSTRACT:
Novel copolymers of N,N-dimethylacrylamide and acrylamide are disclosed where the ratio of NNDMA to AM ranges from 10:90 to 95:5. The hydrolyzed copolymer is also disclosed where hydrolysis ranges from 5% to 65% and the ratio of NNDMA to AM is 5:95 to 95:5. These hydrolyzed copolymers are useful in enhanced oil recovery operations.

REFERENCES:
patent: 2827964 (1958-03-01), Sandiford
patent: 3039529 (1962-06-01), McKennon
patent: 3082178 (1963-03-01), Coover
patent: 4146690 (1979-03-01), Tago
H. L. Needles et al., "J. of Polymer Science," Part A, No. 3, pp. 3543-3548, 1965.

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