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1.发明专利
公开(公告)号：CA2704543A1
公开(公告)日：2009-05-22
申请号：CA2704543
申请日：2008-11-13
Applicant: BASF SE
Inventor： UERDINGEN ERIC , SIEMER MICHAEL , LUTZ MICHAEL , WISNIEWSKI THOMAS , HERMANUTZ FRANK , GAEHR FRANK
Abstract: The invention relates to a method for producing regenerated biopolymers in the form of carbohydrates, using a solvent system that contains the biopolymers dissolved therein. The solvent system is based on a melted ionic liquid and optionally a protic solvent or a mixture thereof. The biopolymers dissolved in the solvent system are precipitated in a coagulation medium, said medium comprising a protic coagulant or a mixture of protic coagulants. The method according to the invention is characterized in that the surface tension s of the coagulant or the mixture of coagulants is 99% to 30% of the surface tension s of water, the surface tension being measured according to ASTM D 1590-60 at a temperature of 50°C. The method according to the invention is economical and flexible and leads to advantageous products, especially in the form of staple fibers which are especially not fibrillated and have an advantageous wet to dry strength ratio.
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2.发明专利
公开(公告)号：AU2008323239A1
公开(公告)日：2009-05-22
申请号：AU2008323239
申请日：2008-11-13
Applicant: BASF SE
Inventor： LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK , UERDINGEN ERIC , SIEMER MICHAEL , WISNIEWSKI THOMAS
Abstract: Producing regenerated biopolymers in the form of carbohydrates, preferably of starch, cellulose and/or their derivatives, using a solvent system containing the biopolymer dissolved in it, where the solvent system is based on a molten ionic liquid and/or optionally a protic solvent, comprises precipitating the biopolymers dissolved in the solvent system in a coagulation medium comprising a protic coagulant or its mixture. The surface tension (measured according to ASTM D 1590-60 at 50[deg] C) of the protic coagulant amounts to 99-30% of the surface tension of water. Independent claims are included for: (1) a regenerated biopolymer, obtained by the above method, in the form of fibers, filaments or foils; and (2) spinning fibers based on regenerated cellulose with a wet fibrillation note of = 2, which are preferably non-fibrillated, and with a ratio of wet liquid to dry solid of at least 0.55, preferably at least 0.6.
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公开(公告)号：ZA200806307B
公开(公告)日：2013-12-23
申请号：ZA200806307
申请日：2008-07-21
Applicant: BASF SE
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , MAASE MATTHIAS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK
IPC: C08J20060101 , C08B20060101 , D01F20060101
Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating. The invention offers in particular economic advantages over the systems of the prior art.
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公开(公告)号：DE102006035830A9
公开(公告)日：2008-11-06
申请号：DE102006035830
申请日：2006-08-01
Applicant: BASF SE
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , MAASE MATTHIAS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK
IPC: C07D233/58 , C08B1/00 , D01D5/00 , D01F2/08
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公开(公告)号：CA2706214A1
公开(公告)日：2009-05-28
申请号：CA2706214
申请日：2008-11-20
Applicant: BASF SE
Inventor： GUENTHERBERG NORBERT , FARWERCK KARL-PETER , KURPS ARMIN , BARRERA-MEDRANO DANIEL , UERDINGEN ERIC , STEGMANN VEIT , LUTZ MICHAEL
Abstract: The invention relates to a method for producing spherical particles from at least one material, said method comprising the following steps: (A) a solution or a dispersion of the at least one material is produced in at least one solvent or dispersant that can be mixed with water, (B) the solution or dispersion obtained in step (A) is transformed into individual portions containing a quantity of the at least one material corresponding to the quantity present in the spherical particles, by means of underwater granulation, and (C) the portions obtained in step (B) are introduced into a medium that can be mixed with the solvent or dispersant from step (A) and in which the material used in step A is insoluble, such that the solvent or dispersant used in step (A) is replaced by the medium that can be mixed with the solvent or dispersant from step (A), and the material is hardened to form the spherical particles.
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Patent Agency Ranking
公开(公告)号：CA2698557A1
公开(公告)日：2009-03-26
申请号：CA2698557
申请日：2008-09-09
Applicant: BASF SE
Inventor： BRAUN MARKUS , DYLLICK-BRENZINGER RAINER , MAASE MATTHIAS , STEIN FRANK , TURNER MEGAN , UERDINGEN ERIC
IPC: B27N3/00 , C08J3/24 , C08L35/00 , C09J133/06
Abstract: A binder-consolidated cellulose bead or lignocellulose bead (referred to as consolidated bead for short), obtainable by - mixing of cellulose or lignocellulose beads with a binder and subsequent crosslinking of the binder.
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公开(公告)号：AU2006332111A1
公开(公告)日：2007-07-12
申请号：AU2006332111
申请日：2006-12-22
Applicant: BASF SE
Inventor： MASSONNE KLEMENS , STEGMANN VEIT , UERDINGEN ERIC , HERMANUTZ FRANK , MAASE MATTHIAS , LUTZ MICHAEL , GAEHR FRANK
Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating. The invention offers in particular economic advantages over the systems of the prior art.
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8.发明专利
公开(公告)号：AU2008323239B2
公开(公告)日：2014-01-16
申请号：AU2008323239
申请日：2008-11-13
Applicant: BASF SE
Inventor： HERMANUTZ FRANK , SIEMER MICHAEL , LUTZ MICHAEL , UERDINGEN ERIC , GAEHR FRANK , WISNIEWSKI THOMAS
Abstract: The invention relates to a method for producing regenerated biopolymers in the form of carbohydrates, using a solvent system that contains the biopolymers dissolved therein. The solvent system is based on a melted ionic liquid and optionally a protic solvent or a mixture thereof. The biopolymers dissolved in the solvent system are precipitated in a coagulation medium, said medium comprising a protic coagulant or a mixture of protic coagulants. The method according to the invention is characterized in that the surface tension &sgr; of the coagulant or the mixture of coagulants is 99% to 30% of the surface tension &sgr; of water, the surface tension being measured according to ASTM D 1590-60 at a temperature of 50°C. The method according to the invention is economical and flexible and leads to advantageous products, especially in the form of staple fibers which are especially not fibrillated and have an advantageous wet to dry strength ratio.
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公开(公告)号：PL1966284T3
公开(公告)日：2013-09-30
申请号：PL06829851
申请日：2006-12-22
Applicant: BASF SE
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , MAASE MATTHIAS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK
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公开(公告)号：ES2414437T3
公开(公告)日：2013-07-19
申请号：ES06829851
申请日：2006-12-22
Applicant: BASF SE
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , MAASE MATTHIAS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK
Abstract: Método para la producción de almidón regenerado, celulosa regenerada y derivados de almidón y de celulosaregenerados, empleando un sistema de solución que contiene almidón, celulosa y/o derivados de almidón ycelulosa, donde el sistema de solución está basado en un líquido iónico fundido y contiene un solvente prótico o unamezcla de varios solventes próticos, donde para el caso que el solvente prótico sea sólo agua, ésta está presente enel sistema de solución en una cantidad superior a 5 % en peso, y donde el sistema de solución contiene el solventeprótico, con excepción del agua, en una cantidad de por lo menos 0,1 % en peso, y el sistema de solución contienecomo solventes próticos metanol, etanol, 1-propanol, 2-propanol y/o 1-butanol, dado el caso en mezcla con agua,donde el sistema de solución es transformado en un medio de coagulación, en el cual se encuentra un solvente queno disuelve almidón, celulosa y/o derivados de almidón y celulosa y con el cual el líquido iónico fundido es miscible.
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