North Carolina State University

E.i. Dupont De Nemours and Company

Fmc Corporation

Cotton, Inc.

Hasan Jameel

Meenakshi Sundaram

V.r. Parthasarathy

Ronald James Klein

Josef Stephan Gratzl

Hou-min Chang

Bijan Amini

John Robert Webster

Bruce A Evans

Ronalds W Gonzalez

Dingru Pan

Junfu Song

Matthew J Farrell

Josef S Gratzl

Mary Ann Ankeny

Richard A Venditti

Lokendra Pal

Lucian Lucia

Abdus Salam

Meenaksi Sundaram

Franklin J Zambrano

V R Parthasarathy

Geoffrey E Seger

Ronald J Klein

Vr Parthasarathy

Disclosed is mechanical and decolorization pretreatment of cotton-containing textiles, such as 'trash' feedstock in terms of end-of-life-cotton textiles, that may be used to produce sugar without the use of harsh pretreatments conditions.

Pretreatment methods for cotton textile waste fabric

Tissue paper of the disclosure exhibits advantageous softness and bulk at a basis weight less than that of basis weights found in currently available commercial tissue products, while delivering adequate strength for machine runability and consumer usage. This tissue is a lightweight paper that comprises a fiber core with up to 60% mechanically fibrillated fibers and a retention or drainage aid such as a cationic polyacrylamide polymer that facilitates drainage, softness, and bulk. This approach can reduce the fiber content of tissue products significantly while delivering the desired strength and other critical properties.

Tissue paper with reduced fiber and methods of manufacture

Paper strength agents comprising a vegetable protein or polysaccharide and a cross linker are disclosed. Methods of preparing such agents and using them to increase the strength of a pulp product are also disclosed.

Paper-strength agents and methods for improving pulp products

A process for treating a substrate, e.g., lignocellulosic pulp or cellulosic pulps, with a mixed peracid solution comprising percarboxylic acid and Caro's acid which results in a higher conversion rate of the active oxygen in the hydrogen peroxide in order to provide an inexpensive and effective delignification and/or bleaching solution and the process for making the mixed peracid solution.

Method of oxidatively treating a substrate with an equilibrium mixture

A process for treating a substrate, e.g., lignocellulosic pulp or cellulosic pulps with a mixed peracid solution comprising percarboxylic acid and Caro's acid which results in a higher conversion rate of the active oxygen in the hydrogen peroxide in order to provide an inexpensive and effective delignification and/or bleaching solution and the process for making the mixed peracid solution.

Process for preparing a bleaching liquor containing percarboxylic acid

A high-efficiency wood pulp bleaching process to produce wood pulps with higher brightness at equal chlorine dioxide usage or of equal brightness at significantly reduced chlorine dioxide usage. The process comprises reacting the chlorine dioxide with wood pulp at a pH of about 5-10 for about 5-40 minutes and then acidifying the mixture to a pH of about 1.9-4.2. The mixture is then allowed to react for about 2 or more hours to complete the two-step high/low pH bleaching process.

High efficiency two-step, high-low pH chlorine dioxide pulp bleaching

A process is provided for a two-stage oxygen delignification of chemical pulp in which 0.01% to 1% hydrogen peroxide is incorporated into the first and, optionally the second stage. The invention is particularly suitable when the pulp is subsequently bleached with at least one chlorine dioxide stage and at least one hydrogen peroxide stage.

Two stage process for the oxygen delignification of lignocellulosic

Growing community of inventors

Raleigh, NC, United States of America

Hasan Jameel