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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.:

US 11492757 B1

PDFFull Text
Date of Patent:
Nov. 08, 2022

Filed:

Jul. 26, 2019

Composition of matter in a post-refiner blend zone

Applicant:

Eastman Chemical Company, Kingsport, TN (US);

Inventors:

Charles Stuart Everett, Kingsport, TN (US);

Melvin Glenn Mitchell, Penrose, NC (US);

Kenny Randolph Parker, Afton, TN (US);

Koushik Ghosh, Kingsport, TN (US);

Mounir Izallalen, Kingsport, TN (US);

Assignee:

Eastman Chemical Company, Kingsport, TN (US);

Attorneys:

Polly C. Owen

Dennis V. Carmen

Primary Examiner:

Jose A Fortuna

Int. Cl.
CPC ...
D21H 15/10 (2006.01); D21H 15/04 (2006.01); D21H 11/14 (2006.01); D21H 17/68 (2006.01); D21H 21/20 (2006.01); D21H 21/16 (2006.01); D21H 17/67 (2006.01); D21H 11/20 (2006.01); D21H 17/28 (2006.01); D21H 17/62 (2006.01); D21H 17/17 (2006.01); D21H 17/15 (2006.01);
U.S. Cl.
CPC ...
D21H 15/10 (2013.01); D21H 11/14 (2013.01); D21H 11/20 (2013.01); D21H 15/04 (2013.01); D21H 17/15 (2013.01); D21H 17/17 (2013.01); D21H 17/28 (2013.01); D21H 17/62 (2013.01); D21H 17/675 (2013.01); D21H 17/68 (2013.01); D21H 21/16 (2013.01); D21H 21/20 (2013.01);
Abstract

After cellulose fibers and cellulose ester fibers are co-refined, they are fed to a blend tank continuously feeds a wet laid process. The composition in the blend tank includes co-refined cellulose fibers and cellulose ester fibers and one or more additives, and the cellulose ester fibers have a denier per filament (DPF) of less than 3, a cut length of less than 6 mm, crimped, or non-round with a DPF of less than 3.

Find Patent Forward Citations

Quick Actions:

Everett, Charles. (2022). Composition of matter in a post-refiner blend zone (U.S. Patent No. 11492757). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11492757

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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