Process for preparing a solution of poly(allylamine)

Details Process for preparing a solution of poly(allylamine) Process for preparing a solution of poly(allylamine)

1986-01-06

1986-12-02

Schofer, Joseph L.

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

Synthetic resins

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

5253282, 525378, 526277, 526287, 526291, 526310, C08C 1900

Patent

active

046265775

ABSTRACT:
A process for preparing a methanolic solution of poly(allylamine) is disclosed, wherein an inorganic acid salt of polyallylamine (e.g. hydrochloride, phosphate or sulfate) is ground into a fine powder, which powder is dispersed in a methanolic solution of caustic alkali (e.g. NaOH or KOH) or ammonia and treated at the temperature of 0.degree. to 65.degree. C. for a period of 10 hours or less.

REFERENCES:
patent: 2926161 (1960-02-01), Butler et al.
patent: 3032538 (1962-05-01), Spauling et al.
patent: 3619394 (1971-11-01), Battaerd
patent: 3912693 (1975-10-01), Shimizu et al.
patent: 4121986 (1978-10-01), Battaerd
patent: 4504640 (1985-03-01), Harada et al.

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