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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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公开(公告)号：US11466408B2
公开(公告)日：2022-10-11
申请号：US16522953
申请日：2019-07-26
发明人： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Koushik Ghosh , Mounir Izallalen
摘要： Absorbent wet laid products are made containing cellulose fibers and cellulose ester staple fibers that are co-refined to obtain products and articles that have improved water absorbency and tensile strength or burst strength or both. The absorbent wet laid products can now be made with a synthetic fiber in the wet laid operation since cellulose ester can be subjected to a refining operation.
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公开(公告)号：US20220298726A1
公开(公告)日：2022-09-22
申请号：US17805474
申请日：2022-06-06
发明人： Mengkui Luo , Michael Rea , Angela Dodd , Andrew Dodd , Amy Anderson-Gaber , Kris Lindenauer , Hugh West , Charles Miller
摘要： Pulps, cellulose ether products, and methods of making pulps are described.
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公开(公告)号：US11332885B2
公开(公告)日：2022-05-17
申请号：US16522969
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.
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公开(公告)号：US11299854B2
公开(公告)日：2022-04-12
申请号：US16522983
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 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.
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公开(公告)号：US11286619B2
公开(公告)日：2022-03-29
申请号：US16522961
申请日：2019-07-26
摘要： 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.
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公开(公告)号：US11255051B2
公开(公告)日：2022-02-22
申请号：US16767614
申请日：2017-11-29
发明人： Deborah J. Calewarts , Jian Qin , Charles W. Colman , Cathleen M. Uttecht , Donald E. Waldroup , Francis P. Abuto , Jenny L. Day , Stephen M. Lindsay
IPC分类号： D21H27/38 , D04H1/425 , D04H1/593 , D21F11/00 , D21F11/02 , D21H13/24 , D21H15/04 , D21H17/35 , D21H21/16 , D04H1/541 , D04H1/4374 , D04H1/559 , D04H1/732
摘要： A method for producing a foam-formed multilayered substrate that includes producing an aqueous-based foam including at least 3% by weight non-straight synthetic binder fibers, wherein the non-straight synthetic binder fibers have an average length greater than 2 mm; forming together a wet sheet layer from the aqueous-based foam and a cellulosic fiber layer, wherein the cellulosic fiber layer includes at least 60 percent by weight cellulosic fibers; and drying the combined layers to obtain the foam-formed multilayer substrate. A multilayered substrate includes a first layer including at least 60 percent by weight non-straight synthetic binder fibers having an average length greater than 2 mm; and a second layer including at least 60 percent by weight cellulosic fiber, wherein the first layer is in a facing relationship with the second layer, and wherein the multilayered substrate has a wet/dry tensile ratio of at least 60%.
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公开(公告)号：US20200063366A1
公开(公告)日：2020-02-27
申请号：US16522973
申请日：2019-07-26
摘要： 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.
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公开(公告)号：US20200063363A1
公开(公告)日：2020-02-27
申请号：US16522961
申请日：2019-07-26
摘要： 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.
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公开(公告)号：US20200063351A1
公开(公告)日：2020-02-27
申请号：US16522983
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 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
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