Quaternary polyalkylene imine containing 2-hydroxypropyltrimethy

Details Quaternary polyalkylene imine containing 2-hydroxypropyltrimethy Quaternary polyalkylene imine containing 2-hydroxypropyltrimethy

1985-02-25

1986-08-12

Anderson, Harold D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

210735, 525417, 525540, C08G 7300, C08F 812

Patent

active

046057072

ABSTRACT:
Polyalkylene imines containing 2-hydroxypropyltrimethylammonium salt side chains are obtained by reaction between alkylene imine polymers and copolymers and a glycidyltrimethylammonium salt. These polymers are very effective flocculants, particularly in the area of water clarification. They are obtained from a variety of sources, e.g. by modification of either commercial polyethylene imines or polymers derived from oxazolines, and oxazinolines, from the polymerization of aziridine monomers or from the condensation of a low molecular weight polyamine and a dihaloalkane.

REFERENCES:
patent: 2995512 (1961-08-01), Weidner et al.
patent: 4206295 (1980-06-01), Wagner et al.
Alkylenimine Polymers--Encyclopedia of Polymer Sci. & Tech. vol. 1, pp. 741-742 (1964) and Supp. to vol. 1, p. 44 (1976); Publ. John Wiley & Sons.

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