Compositions – Electrically conductive or emissive compositions
Patent
1989-04-14
1992-01-07
Barr, Josephine
Compositions
Electrically conductive or emissive compositions
528490, 528487, 525340, 525343, H01B 106, C08F 600
Patent
active
050789139
ABSTRACT:
A method for removing odor from an aqueous solution of polymeric quanternary ammonium salt solution containing residual aliphatic tertiary amine and choline chloride or derivative thereof, said process comprising adding a sufficient amount of a non-volatile, stable, polybasic acid to react with said choline chloride or derivative thereto to prevent the formation of aliphatic tertiary amine from said choline chloride or derivative thereof. The present invention is also directed to a process for the preparation of recording film by treating as ethylene oxide neutralized conductive quaternary polymer solution with orthophosphoric acid and coating the treated solution directly onto a substrate.
REFERENCES:
patent: 4990581 (1991-02-01), Pauline
Barr Josephine
James River Paper Company, Inc.
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