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:
Aug. 02, 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);
Mounir Izallalen, Kingsport, TN (US);
Koushik Ghosh, 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 11/20 (2006.01); D21F 1/00 (2006.01);
U.S. Cl.
CPC ...
D21H 15/10 (2013.01); D21F 1/0018 (2013.01); D21H 11/20 (2013.01); D21H 15/04 (2013.01);
Abstract
Broke pulp in a paper making process is obtained by pulping broke, and the broke pulp is made of fibrillated cellulose fibers and cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, or a cut length of less than 6 mm, or crimped, or non-round with a DPF of less than 3. The broke pulp can be added to the stock preparation zone of a wet laid manufacturing facility and fed through a refiner.