The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2012
Filed:
Jul. 10, 2006
Masood Akhtar, Middleton, WI (US);
William Robert Kenealy, Madison, WI (US);
Eric Horn, Madison, WI (US);
Ross E. Swaney, Madison, WI (US);
Masood Akhtar, Middleton, WI (US);
William Robert Kenealy, Madison, WI (US);
Eric Horn, Madison, WI (US);
Ross E. Swaney, Madison, WI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
The United States of America as represented by the Secretary of Agriculture, Washington, DC (US);
Abstract
The present invention is a method for producing a pulp from a fibrous lignocellulose material or source using a treatment or pretreatment step which exposes the material to oxalic acid derivatives, particularly dialkyl ester derivatives, particularly in the vapor phase. Once treated, the material may be refined using any one of the several pulping methods to produce a final pulp product and the production of the product is accompanied by strength increases in paper made from the pulp and energy savings in making the pulp, hi addition the treatment or pretreatment produces a soluble carbohydrate source and other components (e.g. acetic acid, other wood components) for further product development. In certain cases a pulp product is not produced and all of the carbohydrate present in the lignocellulose is converted into soluble sugars.