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公开(公告)号：US20200324277A1
公开(公告)日：2020-10-15
申请号：US16914723
申请日：2020-06-29
Applicant: Eastman Chemical Company
Inventor： Mesfin Ejerssa Janka , Kenny Randolph Parker , Ashfaq Shahanawaz Shaikh , Lee Reynolds Partin
IPC: B01J27/32 , B01D11/04 , B01J27/128 , C07D307/68 , C07B41/08 , C07B63/00 , C07D307/48 , B01D17/00 , B01J10/00 , B01J23/889
Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.
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公开(公告)号：US20200063367A1
公开(公告)日：2020-02-27
申请号：US16522978
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Charles Stuart Everett , Melvin Glenn Mitchell , Mounir Izallalen , Koushik Ghosh
Abstract: Containers and lids made from cellulose fibers and cellulose ester fibers are provided that have enhanced air permeability, stiffness, R-heat insulation values, or thickness at equivalent grammage basis weights are provided, or alternatively, maintaining one or more of these properties while lowering the basis weight of the containers or lids. The container and lids with this synthetic fiber can be biodegradable when made with cellulose ester fibers having a degree of substitution of not more than 2.5. Examples of such containers are food packaging such as hot or cold delivery boxes.
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公开(公告)号：US20200063360A1
公开(公告)日：2020-02-27
申请号：US16522942
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
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.
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公开(公告)号：US20200063357A1
公开(公告)日：2020-02-27
申请号：US16522929
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Koushik Ghosh , Mounir Izallalen
Abstract: A composition is contained a blend zone prior to refining containing non-fibrillated virgin cellulose fibers, waste/recycle cellulose fibers or both; cellulose ester fibers, water, and one or more additives comprising fillers, internal sizing agents, biocides, process anti-foaming agents, colorants, optical modifiers, or a combination thereof. An in-line mixer can be used for adding the additives, and the consistency of the composition is lowered relative to a feed of material from a hydropulper.
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公开(公告)号：US20200063356A1
公开(公告)日：2020-02-27
申请号：US16522923
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
Abstract: A composition obtained by combining virgin cellulose fibers, cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, and water, and water. The CE staple fibers can also have a short cut length of less than 6 mm and can be crimped. The compositions, when co-refined, are useful to make wet laid products such as paper, cardboard, and filters that have improved water drainage, air permeability, tensile strength, bulk, burst strength, or stiffness, or a combination of these properties.
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Patent Agency Ranking
公开(公告)号：US20200063348A1
公开(公告)日：2020-02-27
申请号：US16522952
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
Abstract: A soft wipe article is provided comprising a wet-laid sheet which comprises cellulosic fibers and cellulose ester staple fibers, wherein the cellulose ester staple fibers are present in an amount sufficient to provide the wet laid-sheet with a lower density and higher thickness at a given basis weight compared to a 100% Cellulose Comparative composition, when processed under similar conditions. The cellulose ester staple fibers can also provide the wet laid-sheet with a higher softness, while maintaining or increasing tear strength, compared to a 100% Cellulose Comparative composition, when processed under similar conditions.
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公开(公告)号：US20200063346A1
公开(公告)日：2020-02-27
申请号：US16522994
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits.
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公开(公告)号：US20200063343A1
公开(公告)日：2020-02-27
申请号：US16522962
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Melvin Glenn Mitchell , Charles Stuart Everett , Kenny Randolph Parker , Koushik Ghosh , Mounir Izallalen
Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits.
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公开(公告)号：US20190309444A1
公开(公告)日：2019-10-10
申请号：US16373046
申请日：2019-04-02
Applicant: Eastman Chemical Company
Inventor： Edgar N. Rudisill , Charles Stuart Everett , Brandon Wesley Hale , Richard Moore Holbert, JR. , Loady Palmer Holbrook, JR. , Kenny Randolph Parker , Johnathan Wayne Smith , Kevin Leonard Urman
IPC: D01F8/00
Abstract: An article is provided comprising a multicomponent fiber having a shaped cross section, wherein the multicomponent fiber comprises: (A) at least one water dispersible polymer; and (B) a plurality of domains comprising one or more water non-dispersible polymers, wherein said domains are substantially isolated from each other by said water dispersible polymer intervening between said domains; and wherein said water dispersible polymer is present at the perimeter of the outside cross-section of said multicomponent fiber in a proportion of not greater than 55% water dispersible polymer.
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公开(公告)号：US20190309441A1
公开(公告)日：2019-10-10
申请号：US16373037
申请日：2019-04-02
Applicant: Eastman Chemical Company
Abstract: A process for texturing a multicomponent fiber having a shaped cross section is provided. The process comprises: (A) providing a multicomponent fiber having a shaped cross section and at least one water dispersible polymer; and a plurality of domains comprising one or more water non-dispersible polymers, wherein said domains are substantially isolated from each other by said water dispersible polymer intervening between said domains; and (B) passing the multicomponent fiber through a first zone comprising a first heating device and a twisting unit, wherein the first heating device has a heating temperature that is at least 10% less than the temperature used for a fiber without the water dispersible component having the same water non-dispersible polymer, same number of total filaments in the fiber, and the same total denier for a given type of equipment and process conditions.
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