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公开(公告)号：DE102005062608A1
公开(公告)日：2007-07-05
申请号：DE102005062608
申请日：2005-12-23
Applicant: BASF AG
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , MAASE MATTHIAS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK
Abstract: Solution system (I) for biopolymers in the form of carbohydrates, based on molten ionic liquid, optionally containing additives, contains protic solvent(s) and, if the only protic solvent is water, in an amount more than about 5 wt.%. Independent claims are included for (1) process for producing (I); (2) process for producing regenerated carbohydrates using (I); (3) regenerated carbohydrate produced by this process, especially in the form of regenerated cellulose fibers.
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公开(公告)号：DE50108341D1
公开(公告)日：2006-01-12
申请号：DE50108341
申请日：2001-09-24
Applicant: BASF AG
Inventor： GAEHR FRANK , HERMANUTZ FRANK , PECZYNSKI MIRKO
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Patent Agency Ranking
公开(公告)号：CA2633623A1
公开(公告)日：2007-07-12
申请号：CA2633623
申请日：2006-12-22
Applicant: BASF AG
Inventor： MASSONNE KLEMENS , MAASE MATTHIAS , HERMANUTZ FRANK , STEGMANN VEIT , GAEHR FRANK , LUTZ MICHAEL , UERDINGEN ERIC
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：DE10146932B4
公开(公告)日：2005-03-31
申请号：DE10146932
申请日：2001-09-24
Applicant: BASF AG
Inventor： GAEHR FRANK , HERMANUTZ FRANK , PECZYNSKI MIRKO
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公开(公告)号：DE102006035830A1
公开(公告)日：2008-02-07
申请号：DE102006035830
申请日：2006-08-01
Applicant: BASF AG
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , MAASE MATTHIAS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK
IPC: C07D233/58 , C08B1/00 , D01D5/00 , D01F2/08
Abstract: Solvent system based on molten ionic liquid for biopolymers in the form of carbohydrates, comprises optionally additives and a protic solvent or its mixture, and if the protic solvent is water alone, then this is present in the solvent system in an amount of more than about 5 wt.%. Independent claims are included for: (1) a method for the production of a solvent system comprising mixing the carbohydrates with the molten ionic liquid and the protic solvent and/or its mixture, until the carbohydrates are dissolved; (2) a method for the production of regenerated carbohydrates, preferably starch, cellulose and their derivatives using the solvent system, where the solvent system is precipitated, preferably wet spun in a coagulation medium, and contains a solvent, which does not dissolve the carbohydrates and is mixable with the molten ionic liquid; (3) a regenerated carbohydrates, preferably in the form of regenerated cellulose fibers obtained by the above method; and (4) spinnable fibers based on regenerated cellulose with a wet fibrillation grade of /~2.
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公开(公告)号：DK1322694T3
公开(公告)日：2006-02-27
申请号：DK01982345
申请日：2001-09-24
Applicant: BASF AG
Inventor： GAEHR FRANK , HERMANUTZ FRANK , PECZYNSKI MIRKO
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公开(公告)号：DE10047657B4
公开(公告)日：2005-02-10
申请号：DE10047657
申请日：2000-09-26
Applicant: BASF AG
Inventor： GAEHR FRANK , HERMANUTZ FRANK , PECZYNSKI MIRKO
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