International Paper Company

University of Maine System

International Paper

Gopal Goyal

Zheng Tan

Jianer Jiang

Damaris Lorenzoni

Adriaan Reinhard Pieter Van Heiningen

Sung-Hoon Yoon

Haixuan Zou

Sen Yang

Alexander A Koukoulas

Linnea J Shaver

A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.

Ligno cellulosic materials and the products made therefrom

Processes for pulping raw pulp material, such as wood chips, to provide pulp fibers having increased bulk, as well as bleaching the resulting pulp fibers to provide bleached pulp fibers having increased bulk. These pulp fibers and bleached pulp fibers may be incorporated into or used various products, such as multi-ply coated paperboards, fluff pulp, etc.

Process for producing increased bulk pulp fibers, pulp fibers obtained, and products incorporating same

The present invention relates to compositions containing stabilized and/or activated urease inhibitors, as well methods of making and using the same.

Compositions and particles containing cellulosic fibers and stabilized-and/or activated-urease inhibitors, as well as methods of making and using the same

The present invention relates to compositions containing stabilized and/or activated urease inhibitors, as well as methods of making and using the same.

Cellulosic fiber compositions having odor control and methods of making and using the same

A process of treating a lignocellulosic material includes a pre-extraction step in which hemicellulose is extracted from the lignocellulosic material. In one embodiment, the pre-extraction step involves contacting the lignocellulosic material with an aqueous solution under conditions that release acidic material from the lignocellulosic material into the aqueous solution, and the aqueous solution includes a basic material that at least partly neutralizes the acidic material so that the aqueous solution at the end of the pre-extraction step has a pH within a range of from 4.5 to 11. The process also includes a pulping step, after the pre-extraction step, in which the lignocellulosic material is separated into pulp. The process further includes an adsorption step, after the pulping step, in which hemicellulose is adsorbed on the pulp.

Process of treating a lignocellulosic material

A method of producing a modified pulp for use in paper or paper web products, the method comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.

Modified kraft fibers

A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.

Modified Kraft fibers

Lignocellulosic materials and the products made therefrom

Process of treating a lignocellulosic material with an alkali metal borate pre-extraction step

A process of treating a lignocellulosic material includes a pre-extraction step in which hemicellulose is extracted from the lignocellulosic material. Then, in a solvent pulping step, the lignocellulosic material is separated into pulp by contacting the lignocellulosic material with a cooking liquor comprising a solvent. In one embodiment, the solvent has a boiling point of at least about 150&#xb0; C. In another embodiment, the cooking liquor comprises a mixture of solvent and water.

Growing community of inventors

Mason, OH, United States of America

Gopal Goyal