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US Patent 11286619 Bale of virgin cellulose and cellulose ester

Patent 11286619 was granted and assigned to Eastman Chemical Company on March, 2022 by the United States Patent and Trademark Office.

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Contents

Is a
Patent
Patent

Patent attributes

Patent Applicant
Eastman Chemical Company
Eastman Chemical Company
Current Assignee
Eastman Chemical Company
Eastman Chemical Company
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11286619
Date of Patent
March 29, 2022
Patent Application Number
16522961
Date Filed
July 26, 2019
Patent Citations
‌
US Patent 10967315 Fine fiber media layer
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US Patent 10981096 Process for making high efficiency synthetic filter media
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US Patent 10307309 Carded staple fiber nonwovens
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US Patent 10273634 Strength agent, its use and method for increasing strength properties of paper
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US Patent 10443167 Method for producing a wet-laid nonwoven fabric
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US Patent 10532123 Hydroentangled fibrous structures
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US Patent 10532545 Composite and method for producing the same
Patent Citations Received
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US Patent 11441267 Refining to a desirable freeness
‌
US Patent 11492757 Composition of matter in a post-refiner blend zone
‌
US Patent 11492756 Paper press process with high hydrolic pressure
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US Patent 11512433 Composition of matter feed to a head box
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US Patent 11519132 Composition of matter in stock preparation zone of wet laid process
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US Patent 11525215 Cellulose and cellulose ester film
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US Patent 11530516 Composition of matter in a pre-refiner blend zone
‌
US Patent 11421387 Tissue product comprising cellulose acetate
...
Patent Primary Examiner
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Jacob T Minskey
Patent abstract

A bale of sheets made of virgin cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have:i. a denier per filament (DPF) of less than 3, orii. a cut length of less than 6 mm, oriii. crimping, oriv. a combination of any two or more of (i)-(iii).

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