Method of deacidifying cellulose-based materials
OwnerRaymond H. Thomas, David L. Diggsinventors
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Abstract
Provided are methods of deacidifying a cellulose-based material by providing a deacidification composition comprising a hydrofluorocarbon and a deacidification agent dispersed within the hydrofluorocarbon, and contacting the cellulose-based material with the composition to increase the pH associated with the cellulose-based material. Also provided are deacidification compositions for use in the present methods.
Claims26
A method of deacidifying a cellulose-based material comprising:
- providing a composition comprising a hydrofluorocarbon (HFC) having a boiling point of from about −18.5° C. to about 55° C. and a deacidification agent dispersed in said HFC;
- and
- increasing the pH of said cellulose-based material by contacting said material with said composition.
A deacidification composition comprising a C2-C5 HFC having a boiling point of from about −18.5° C. to about 50° C. and a deacidification agent dispersed in said HFC.
The composition of claim 27 wherein said surfactant is a fluorinated surfactant.
Dependencies are inferred from the claim text.