Abstract

A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step …

Legal parties

Party
Inventors (applicants): Peter R. Abitz, Arthur J. Nonni, Christopher Michael Slone, Charles E. Courchene
Assignees (initial): GP Cellulose GmbH (Zug, CH)
Agents: Michael V. Kruljac (attorney), Lori-Ann Johnson (attorney), Ram W. Sabnis (attorney)

The application was examined by Richard Crispino (USPTO dept. 1747), Eric Yaary

Claims

  • 1. A method of making a kraft fiber comprising: …
  • 2. The method of claim 1 , wherein the catalyst is chosen from at least …
  • 3. The method of claim 2 , wherein the peroxide is hydrogen peroxide. …

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Drawings

Brief Description of the Drawing

FIG. 1 shows a chart of final 0.5% capillary CED viscosity as a function of percent peroxide consumed. FIG. 2 shows a chart of wet strength to dry strength ratio …

Description

Technical Field

This disclosure relates to the chemical modification of cellulose fiber. More particularly, this disclosure relates to chemically modified cellulose fiber derived from bleached kraft pulp that exhibits a unique set of characteristics …

Other Patent Relations

This application is a U.S. national stage entry under 35 U.S.C. §371 from PCT International Application No. PCT/US2010/036763, filed May 28, 2010, and claims priority to and the benefit of the filing …

I. Methods

The present disclosure provides novel methods for treating cellulose fiber. In some embodiments, the disclosure provides a method of modifying cellulose fiber, comprising providing cellulose fiber, and oxidizing the cellulose …

More details about Modified Cellulose From Chemical Kraft Fiber and Methods of Making and Using the Same

Miscellaneous patent data

The application was published on May. 28, 2010, numbered 13/322,419 (application), 29 claims comprise the protection scope, illustrated by 2 drawings, the applicant's first name is Arthur J., and his last name is Nonni, the applicant's state - GA, city - Peachtree City, the patent particularly claims a method of making a kraft fiber comprising…, the claim number 1 is selected as exemplary, the assignee is a foreign company or corporation, the invention is titled Modified Cellulose From Chemical Kraft Fiber and Methods of Making and Using the Same, the grant publication number is 08778136, originally classified under Per-compound, similar classification categories are Means for circulating the lye, Relatively moving or separate mold and suction backup, Chlorine containing material in at least one stage, Phosphorus, boron or silicon containing, Prevention of foam, nitrogen oxides, nitric acid, Washing, Discharge devices, Carbohydrate, Apparatus, the examination was conducted by Richard Crispino, the main examiner, Eric Yaary, the assistant (1747 USPTO department), the agent's first name is Lori-Ann, and his last name is Johnson, invented by Christopher Michael Slone et al., 2 figures are supplied with the description, the assignee location is Zug (CH); its company is GP Cellulose GmbH, the grant date is Jul. 15, 2014 (publication date), the published inventor's name is Arthur J. Nonni, the inventor's location - Peachtree City, GA, includes the following drawings: Modified Cellulose From Chemical Kraft, chart of wet strength to dry strength.

Invention classification information

The invention is classified under Plural diverse stage treatments, Chlorine dioxide, with ClO2 or chlorites, Per-compound. The designated search classifications include Per-compound.

Patent details
Publication number 08778136
Publication date Jul. 15, 2014
Kind code B2
Application number 13/322,419
Application date May. 28, 2010
Application type U
Application series code 13
Int. pub. country WO
Int. pub. number WO2010/138941
Int. publication Dec. 2, 2010
Int. filing country WO
Int. filing PCT/US2010/036763
Filed internationally May. 28, 2010
National stage date Mar. 30, 2012
National classification 162/78
Total number of claims 29
Exemplary claims 1
Number of drawings 2
Number of figures 2
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