Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-05-06
1976-05-04
Czaja, Donald E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
2605676P, 260584R, C08G 6526
Patent
active
039546802
ABSTRACT:
A method of promoting alkaline viscosity stability in polymers formed from a secondary amine, an epihalohydrin and an amount of a crosslinking agent such as a primary amine or ammonia which would cause gelation, comprising reacting said polymer with a tertiary amine; a preferred polymer is formed of epichlorohydrin, dimethylamine and ammonia stabilized with trimethylamine.
REFERENCES:
patent: 3567659 (1971-03-01), Nagy
patent: 3663461 (1972-05-01), Witt
patent: 3725312 (1973-04-01), Panzer et al.
patent: 3738945 (1973-06-01), Panzer et al.
Czaja Donald E.
Nalco Chemical Company
Nielsen Earl A.
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