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公开(公告)号：US2374004A
公开(公告)日：1945-04-17
申请号：US42127541
申请日：1941-12-02
发明人： MATHIAS EBERT DAVID
CPC分类号： C01D5/18 , D01F13/02 , Y02P70/627
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92.发明授权
公开(公告)号：US2336778A
公开(公告)日：1943-12-14
申请号：US31813640
申请日：1940-02-09
IPC分类号： D01F13/02
CPC分类号： D01F13/02 , Y02P70/627 , Y10S516/07
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公开(公告)号：US2254237A
公开(公告)日：1941-09-02
申请号：US28241539
申请日：1939-07-01
申请人： DU PONT
发明人： NASH ROY W
IPC分类号： D01F13/02
CPC分类号： D01F13/02 , Y02P70/627
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公开(公告)号：US2153449A
公开(公告)日：1939-04-04
申请号：US15246937
申请日：1937-07-07
发明人： BOOTH ROBERT B
CPC分类号： B03D1/02 , D01F13/02 , Y02P70/627
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公开(公告)号：US11549200B2
公开(公告)日：2023-01-10
申请号：US16481071
申请日：2018-01-30
发明人： Herbert Sixta , Michael Hummel , Kadvaël Le Boulch , Ilkka Kilpeläinen , Alistair W.T. King , Jussi Helminen , Sanna Hellsten
摘要： According to an example aspect of the present invention, there is provided A process for making a cellulose fibre or film comprising the steps of dissolving pulp in an ionic liquid containing a cationic 1,5,7-triazabicyclo[4.4.0]dec-5-enium [TBDH]+ moiety and an anion selected from the group according to Formula a), Formula b) and Formula c), wherein each of R, R2, R3, R4, R5, R7, R8, R9 and R10 is H or an organyl radical and X− is selected from the group consisting of halides, pseudohalides, carboxylates, alkyl sulphite, alkyl sulphate, dialkylphosphite, dialkyl phosphate, dialkyl phosphonites and dialkyl phosphonates, to provide a spinning dope, extruding the spinning dope through a spinneret to form one or more filaments, and a step selected from the group consisting of spinning cellulose fibres from the solution, and extruding a cellulose film from the solution.
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公开(公告)号：US11519104B2
公开(公告)日：2022-12-06
申请号：US16962504
申请日：2019-01-14
IPC分类号： B02C18/00 , B03D1/02 , B29B17/02 , B29B17/04 , D06L4/00 , D01F13/02 , C08B16/00 , C08J11/08 , D01F2/06 , D01D5/06 , D01F2/02 , B29K105/26
摘要： Method of recycling a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and the molded bodies are generated based on the cellulosic fibers after mechanically separating and chemically separating.
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公开(公告)号：US20210062370A1
公开(公告)日：2021-03-04
申请号：US16962209
申请日：2019-01-14
IPC分类号： D01F2/08 , C08J11/08 , D01F1/10 , D01D1/02 , B29C48/05 , B29C48/88 , B29C48/00 , D01D5/06 , D01F13/02
摘要： Method of manufacturing a regenerated cellulosic molded body, wherein the method comprises supplying a starting material which comprises cellulose and at least one foreign matter, transferring at least a part of the starting material with at least a part of the at least one foreign matter into a spinning mass which additionally contains a solvent for solving at least a part of the cellulose of the starting material in the solvent, and extruding the spinning mass to the molded body, and subsequently precipitating in a spinning bath, wherein thereby the molded body is obtained, wherein the molded body comprises cellulose and at least a part of the at least one foreign matter.
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公开(公告)号：US20210062369A1
公开(公告)日：2021-03-04
申请号：US16962207
申请日：2019-01-14
摘要： Method of manufacturing a cellulose-regenerated-molded body, wherein the method comprises supplying a starting material which is manufactured by a lyocell-method and which comprises cellulose, which is manufactured by solving a cellulose source in a solvent for manufacturing a spinning mass, by extruding the spinning mass and by subsequently precipitating in a spinning bath, solving the starting material which comprises cellulose, in a solvent for manufacturing a spinning mass, and extruding, and subsequently precipitating the spinning mass in a spinning bath, wherein thereby the molded body is obtained.
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公开(公告)号：US20200002848A1
公开(公告)日：2020-01-02
申请号：US16481071
申请日：2018-01-30
发明人： Herbert Sixta , Michael Hummel , Kadvaël Le Boulch , Ilkka Kilpeläinen , Alistair W.T. King , Jussi Helminen , Sanna Hellsten
摘要： According to an example aspect of the present invention, there is provided A process for making a cellulose fibre or film comprising the steps of dissolving pulp in an ionic liquid containing a cationic 1,5,7-triazabicyclo[4.4.0]dec-5-enium [TBDH]+ moiety and an anion selected from the group according to Formula a), Formula b) and Formula c), wherein each of R, R2, R3, R4, R5, R7, R8, R9 and R10 is H or an organyl radical and X− is selected from the group consisting of halides, pseudohalides, carboxylates, alkyl sulphite, alkyl sulphate, dialkylphosphite, dialkyl phosphate, dialkyl phosphonites and dialkyl phosphonates, to provide a spinning dope, extruding the spinning dope through a spinneret to form one or more filaments, and a step selected from the group consisting of spinning cellulose fibres from the solution, and extruding a cellulose film from the solution.
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公开(公告)号：US10138578B2
公开(公告)日：2018-11-27
申请号：US14900904
申请日：2014-06-27
申请人： TreeToTextile AB
发明人： Lars Stigsson , Bengt Hagström , Tobias Köhnke , Artur Hedlund , Marta Bialik
摘要： The present invention concerns a method for the recovery of solvent in a process for preparation of regenerated cellulosic fibers using sodium hydroxide as solvent for cellulose dissolving in the manufacturing of a cellulose spinning dope wherein sodium hydroxide present in the spinning dope is at least partially recovered and recycled as sodium hydroxide from a cellulose fiber regeneration or cellulose coagulation step and wherein said cellulose fiber regeneration or cellulose coagulation step consists of a bath into which cellulose spinning dope is injected. Recovered sodium hydroxide may be directly or indirectly recycled from a cellulose fiber regeneration or cellulose coagulation step to a cellulose dissolving step.
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