Deacidification of cellulose based materials using perfluorinate

Details Deacidification of cellulose based materials using perfluorinate Deacidification of cellulose based materials using perfluorinate

1993-08-31

1995-04-25

Dudash, Diana

Coating processes

With post-treatment of coating or coating material

Heating or drying

427343, 427439, B05D 302

Patent

active

054097363

ABSTRACT:
An improved method of deacidifying books, imaged paper and other imaged materials having a cellulose base wherein, for a sufficient time to raise the pH of the materials, the materials are treated with alkaline particles of a basic metal oxide, hydroxide or salt dispersed in an inert perflourinated carrier, preferably selected from the group consisting of perfluoropolyoxyether, perfluoromorpholine and combinations thereof. Perfluoropolyoxyether alkanoic acid is added as a surfactant. Alternatively, when perfluoromorpholine is the carrier of choice, the surfactant may instead be potassium fluoroalkyl carboxylate.

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