-
公开(公告)号：US20200063368A1
公开(公告)日：2020-02-27
申请号：US16523002
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: 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 composition, process, wet laid product, or articles exhibiting any one of many desired benefits. The invention also relates to a composition comprising cellulose fiber and a staple fiber exhibiting improved texturing.
-
公开(公告)号：US20200063366A1
公开(公告)日：2020-02-27
申请号：US16522973
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Charles Stuart Everett , Melvin Glenn Mitchell
Abstract: A recycled cellulose pulp composition is provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A wet-laid fibrous product is also provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A bailed article is also provided that comprises recycled cellulosic fibers and cellulose ester staple fibers. In embodiments, the recycled cellulosic fibers are present in an amount of 50 wt % or more, based on the total dry weight of fibers, and the cellulose ester staple fibers are present in an amount sufficient to increase the Canadian standard freeness (CSF) of the composition by 5% or more compared to a 100 wt % cellulosic fiber pulp composition processed under similar conditions.
-
公开(公告)号：US20200063363A1
公开(公告)日：2020-02-27
申请号：US16522961
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker
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, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii). The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper.
-
公开(公告)号：US20200063351A1
公开(公告)日：2020-02-27
申请号：US16522983
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: 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 the desired benefits. The Present invention also relates to a wet laid product having higher air permeability the same or lower pore size relative to a 100% cellulose comparative composition
-
公开(公告)号：US09598802B2
公开(公告)日：2017-03-21
申请号：US14108389
申请日：2013-12-17
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Shane Kipley Kirk
CPC classification number: D04H1/435 , C08J11/06 , C08J2367/00 , D21H13/24 , D21H15/10 , D21H21/18 , Y02W30/701
Abstract: A process for recovering a primary polymer concentrate stream is provided. The process comprises routing a second mother liquor stream to a primary concentration zone to remove water from the second mother liquor stream to produce the primary polymer concentrate stream; wherein the primary concentration zone comprises at least one ultrafiltration membrane. A process is also provided to recover sulfopolyester from the primary polymer concentrate stream and to produce articles therefrom.
-
Patent Agency Ranking
公开(公告)号：US09458122B2
公开(公告)日：2016-10-04
申请号：US14841867
申请日：2015-09-01
Applicant: Eastman Chemical Company
Inventor： Ashfaq Shahanawaz Shaikh , Kenny Randolph Parker , Mesfin Ejerssa Janka , Lee Reynolds Partin
IPC: C07D307/68
CPC classification number: C07D307/68
Abstract: A process to produce a dry purified furan-2,5-dicarboxylic acid (FDCA) is described. After oxidation of 5-(hydroxymethyl)furfural (5-HMF), a crude FDCA stream is produced that is fed to a crystallization zone followed by a solid-liquid displacement zone to form a low impurity slurry stream. The solids in the low impurity slurry stream are dissolved in a dissolution zone to produce a hydrogenation feed that is hydrogenated in a hydrogenation reactor to generate a hydrogenated FDCA composition. The hydrogenated FDCA composition is routed to a crystallization zone to form a crystallized produce stream that is separated from liquid in a solid-liquid separation zone to generate a purified wet cake stream containing FDCA that can be dried in a drying zone to generate a dry purified FDCA product stream.
-
公开(公告)号：US20150183712A1
公开(公告)日：2015-07-02
申请号：US14141670
申请日：2013-12-27
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Jennifer Caroline Moffitt
IPC: C07C51/47
Abstract: Disclosed is a method for purifying aromatic dicarboxylic acid such as isophthalic acid or terephthalic acid. The process treats a crude carboxylic acid (CCA) composition by: A. feeding a CCA composition comprising a liquid and a solid, said liquid comprising an organic solvent and said solids comprising dicarboxylic acid (DCA), to a filter cake formation zone to form: (i) a CCA wet cake composition comprising said DCA solids and a portion of said organic solvent, said CCA wet cake composition having a first liquid level; and (ii) a first mother liquor stream; B. dewatering said CCA wet cake composition to form: (i) a dewatered CCA wet cake composition having a second liquid level that is lower than the first liquid level or having no liquid level; and (ii) a second mother liquor stream; and C. washing the dewatered CCA wet cake composition with a wash stream in a wash zone to form: (i) a washed CCA wet cake composition; and (ii) a wash liquor stream; wherein step B is performed before step C. By dewatering before a final wash stage is performed, the amount of cobalt metal in the final wet cake product is reduced. The process is flexible in that it allows one to use less wash solvent to obtain an equivalent reduction of cobalt metal in the wet cake composition. Optionally, one may obtain a low moisture wet cake without employing a separate drying step.
-
公开(公告)号：US08969404B2
公开(公告)日：2015-03-03
申请号：US13758080
申请日：2013-02-04
Applicant: Eastman Chemical Company
Inventor： Mesfin Ejerssa Janka , Charles Edwan Sumner, Jr. , Shane Kipley Kirk , Ashfaq Shahanawaz Shaikh , Kenny Randolph Parker
IPC: A61K31/341 , C07D307/34 , C07D307/68
CPC classification number: C07D307/68
Abstract: A process for purifying a crude furan 2,5-dicarboxylic acid composition (cFDCA) by hydrogenation of a FDCA composition dissolved in a hydrogenation solvent such as water, and hydrogenating under mild conditions, such as at a temperature within a range of 130° C. to 225° C. by contacting the solvated FDCA composition with hydrogen in the presence of a hydrogenation catalyst under a hydrogen partial pressure within a range of 10 psi to 900 psi. A product FDCA composition is produced having a low amount of tetrahydrofuran dicarboxylic acid, a low b*, and a low amount of 5-formyl furan-2-carboxylic acid (FFCA).
Abstract translation: 通过氢化溶解在氢化溶剂如水中的FDCA组合物，并在温和条件下（例如在130℃的温度范围内）氢化来纯化粗呋喃2,5-二羧酸组合物（cFDCA）的方法 通过在10psi至900psi的氢分压下，在氢化催化剂存在下使溶剂化的FDCA组合物与氢气接触。 制备具有少量四氢呋喃二羧酸，低b *和少量5-甲酰基呋喃-2-羧酸（FFCA）的产品FDCA组合物。
-
公开(公告)号：US08840758B2
公开(公告)日：2014-09-23
申请号：US13687478
申请日：2012-11-28
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Daniel William Klosiewicz , Ramesh Chand Munjal , David J Rogers, Jr. , Dustin A Tremaine
IPC: B01D12/00 , B01D11/02 , C08G63/688 , D21H13/24
CPC classification number: D21H17/58 , B01D11/0288 , B01D12/00 , C08G63/6886 , D21H13/24 , D21H15/10 , D21H21/18
Abstract: A process for producing a microfiber product stream, the process comprising: (A) contacting short cut multicomponent fibers having a length of less than 25 millimeters with a heated aqueous stream in a mix zone to produce a short cut multicomponent fiber slurry; (B) routing the short cut multicomponent fiber slurry and optionally, a heated aqueous stream, to a fiber opening zone to remove a portion of the water dispersible sulfopolyester to produce an opened microfiber slurry; and (C) routing the opened microfiber slurry to a primary solid liquid separation zone to produce the microfiber product stream and a first mother liquor stream.
Abstract translation: 一种制备超细纤维产品流的方法，该方法包括：（A）将长度小于25毫米的短切多组分纤维与混合区中的加热水流接触以产生短切多组分纤维浆料; （B）将短切多组分纤维浆料和任选地加热的含水物流布置到纤维开口区域以除去一部分水分散性磺基聚酯以产生开放的超细纤维浆料; 和（C）将开放的超细纤维浆料布置到主要固体液体分离区以产生超细纤维产物流和第一母液流。
-
公开(公告)号：US08840757B2
公开(公告)日：2014-09-23
申请号：US13687472
申请日：2012-11-28
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Daniel William Klosiewicz , Ramesh Chand Munjal , David J Rogers , Dustin A Tremaine
IPC: B01D12/00 , C08G63/688 , D21H13/24 , B01D11/02
CPC classification number: D21H17/58 , B01D11/0288 , B01D12/00 , C08G63/6886 , D21H13/24 , D21H15/10 , D21H21/18
Abstract: A process for producing a microfiber product stream is provided comprising: (A) contacting short cut multicomponent fibers having a length of less than 25 millimeters with a treated aqueous stream in a fiber slurry zone to produce a short cut multicomponent fiber slurry; (B) contacting the short cut multicomponent fiber slurry and a heated aqueous stream in a fiber opening zone to remove a portion of the water dispersible sulfopolyester to produce an opened microfiber slurry; and (C) routing the opened microfiber slurry to a primary solid liquid separation zone to produce the microfiber product stream and a first mother liquor stream.
Abstract translation: 提供了一种生产超细纤维产品流的方法，包括：（A）将长度小于25毫米的短切多组分纤维与纤维浆料区中的处理过的水流接触以产生短切多组分纤维浆料; （B）将短切多组分纤维浆料和纤维开口区域中的加热的水流接触以除去一部分水分散性磺基聚酯以产生开放的超细纤维浆料; 和（C）将开放的超细纤维浆料布置到主要固体液体分离区以产生超细纤维产物流和第一母液流。
-
-
-
-
-
-
-
-
-
Search Results
196
records
(took 0.068 seconds)
