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:
Nov. 08, 2022
Filed:
Jul. 26, 2019
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:
Primary Examiner:
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.