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公开(公告)号：US11525215B2
公开(公告)日：2022-12-13
申请号：US16522989
申请日：2019-07-26
摘要： A film is made from a wet laid product containing cellulose fibers and cellulose ester fibers and a plasticizer. The film can be made by heat pressing the wet laid sheet to form a film having a continuous phase of cellulose ester resin and a discontinuous phase of cellulose fibers.
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公开(公告)号：US11492757B2
公开(公告)日：2022-11-08
申请号：US16522932
申请日：2019-07-26
发明人： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Koushik Ghosh , Mounir Izallalen
IPC分类号： D21H15/10 , D21H15/04 , D21H11/14 , D21H17/68 , D21H21/20 , D21H21/16 , D21H17/67 , D21H11/20 , D21H17/28 , D21H17/62 , D21H17/17 , D21H17/15
摘要： 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.
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公开(公告)号：US20220298298A1
公开(公告)日：2022-09-22
申请号：US17633817
申请日：2020-08-07
发明人： Kenny Randolph Parker , Scott Ellery George , Charles Stuart Everett , Kevin Leonard Urman , Joshua Seth Cannon , Weijun Kevin Wang , Chaoxiong Ma
IPC分类号： C08G63/688 , C08G63/89 , C08G63/90 , B29B17/02
摘要： The present disclosure provides a process of recovering sulfopolyester comprising reduced impurity. Sulfopolyester is recovered from a composite material comprising water-dispersible sulfopolyester polymer and at least one non-water-dispersible polymer. The process includes washing the composite material comprising water-dispersible sulfopolyester with a solvent composition. The recovered sulfopolyester can be generated as a concentrated aqueous dispersion, a polymer melt, or a sulfopolyester solid.
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公开(公告)号：US11332888B2
公开(公告)日：2022-05-17
申请号：US16523002
申请日：2019-07-26
发明人： Kenny Randolph Parker , Charles Stuart Everett , Melvin Glenn Mitchell , Mounir Izallalen , Koushik Ghosh
摘要： 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.
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公开(公告)号：US20220106738A1
公开(公告)日：2022-04-07
申请号：US17303602
申请日：2021-06-03
摘要： A bale of sheets made of waste/recycle 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. The waste/recycle cellulose fibers and CE staple fibers can be co-refined prior to making the bale of sheets.
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公开(公告)号：US20200071882A1
公开(公告)日：2020-03-05
申请号：US16540158
申请日：2019-08-14
发明人： Loren William Chambers , Charles Stuart Everett , Jeremy Kenneth Steach , Brian Tyndall Edwards
摘要： A fiber blend comprising a staple fiber formed from cellulose acetate and a binder fiber. The staple fiber has a crimp frequency of 10 to 30 crimps per inch (CPI), a cut length of 55 mm or less, and a non-round cross-sectional shape. The blend can be made into nonwoven webs for heat-bonding and subsequent use as thermal insulation in, e.g., outerwear, bedding, etc. The cellulose acetate fibers provide superior thermal insulation clo value relative to at equivalent loft.
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公开(公告)号：US20200063371A1
公开(公告)日：2020-02-27
申请号：US16522934
申请日：2019-07-26
发明人： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
摘要： A tissue product 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 and/or higher water absorbance, compared to a 100% Cellulose Comparative composition, when processed under similar conditions.
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公开(公告)号：US20200063355A1
公开(公告)日：2020-02-27
申请号：US16523007
申请日：2019-07-26
发明人： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Koushik Ghosh , Mounir Izallalen
摘要： 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. This invention also relates to a biodegradable bag.
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公开(公告)号：US20200063352A1
公开(公告)日：2020-02-27
申请号：US16522988
申请日：2019-07-26
发明人： Kenny Randolph Parker , Charles Stuart Everett , Melvin Glenn Mitchell , Koushik Ghosh , Mounir Izallalen
摘要： 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. Specifically, a wet laid process comprising a process that allows the quantity of water removed from a web passed through press rolls is increased relative to a web made from a 100% cellulose comparative composition or any composition without cellulose ester staple fibers co-refined with cellulose at the same press loading
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公开(公告)号：US11519132B2
公开(公告)日：2022-12-06
申请号：US16522923
申请日：2019-07-26
发明人： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
摘要： 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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