-
公开(公告)号：BRPI0908352A2
公开(公告)日：2015-07-28
申请号：BRPI0908352
申请日：2009-02-11
Applicant: BASF SE
Inventor： SCHWIEGK STEFAN , WILMS AXEL , LANGE RONALD FRANS MARIA , SIEMER MICHAEL , ANDOLA GIOVANNI D , RAUSCHENBERGER VOLKER , HERMANUTZ FRANK , GAEHR FRANK
IPC: C08J9/28
-
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.
-
3.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.
-
4.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.
-
5.发明专利
公开(公告)号：CA2704543C
公开(公告)日：2016-07-12
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 .sigma. of the coagulant or the mixture of coagulants is 99% to 30% of the surface tension .sigma. 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.
-
Patent Agency Ranking
公开(公告)号：CA2633623C
公开(公告)日：2015-11-24
申请号：CA2633623
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: A solvent system for biopolymers in the form of carbohydrates which is based on a molten ionic liquid, with additives being present in the solvent system if appropriate, is described. This solvent system comprises a protic solvent or a mixture of a plurality of protic solvents, and if the protic solvent is water alone, this is present in the solvent system in an amount of more than about 5% by weight. Carbohydrates can be incorporated into the solvent system, in particular in the form of starch, cellulose and derivatives thereof, and the solvent system can then be employed for regenerating the carbohydrates dissolved therein. In addition, a particularly advantageous method of producing the solvent system containing the carbohydrates and for producing regenerated carbohydrates, in particular in the form of regenerated cellulose fibres, is described. The invention accordingly also provides such spinning fibres which are nonfibrillating. The invention offers, in particular, economic advantages over the systems of the prior art.
-
7.发明专利
公开(公告)号：ZA201004180B
公开(公告)日：2015-08-26
申请号：ZA201004180
申请日：2010-06-11
Applicant: BASF SE
Inventor： WISNIEWSKI THOMAS , SIEMER MICHAEL , GAEHR FRANK , HERMANUTZ FRANK , LUTZ MICHAEL , UERDINGEN ERIC
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.
-
公开(公告)号：DK1966284T3
公开(公告)日：2013-07-08
申请号：DK06829851
申请日：2006-12-22
Applicant: BASF SE
Inventor： STEGMANN VEIT , MASSONNE KLEMENS , UERDINGEN ERIC , LUTZ MICHAEL , HERMANUTZ FRANK , GAEHR FRANK , MAASE MATTHIAS
-
公开(公告)号：AU2006332111B2
公开(公告)日：2013-04-11
申请号：AU2006332111
申请日：2006-12-22
Applicant: BASF SE
Inventor： MASSONNE KLEMENS , GAEHR FRANK , UERDINGEN ERIC , MAASE MATTHIAS , HERMANUTZ FRANK , LUTZ MICHAEL , STEGMANN VEIT
Abstract: A solvent system for biopolymers in the form of carbohydrates which is based on a molten ionic liquid, with additives being present in the solvent system if appropriate, is described. This solvent system comprises a protic solvent or a mixture of a plurality of protic solvents, and if the protic solvent is water alone, this is present in the solvent system in an amount of more than about 5% by weight. Carbohydrates can be incorporated into the solvent system, in particular in the form of starch, cellulose and derivatives thereof, and the solvent system can then be employed for regenerating the carbohydrates dissolved therein. In addition, a particularly advantageous method of producing the solvent system containing the carbohydrates and for producing regenerated carbohydrates, in particular in the form of regenerated cellulose fibres, is described. The invention accordingly also provides such spinning fibres which are nonfibrillating. The invention offers, in particular, economic advantages over the systems of the prior art.
-
公开(公告)号：CA2713489A1
公开(公告)日：2009-08-20
申请号：CA2713489
申请日：2009-02-11
Applicant: BASF SE
Inventor： SCHWIEGK STEFAN , WILMS AXEL , LANGE RONALD FRANS MARIA , SIEMER MICHAEL , D ANDOLA GIOVANNI , RAUSCHENBERGER VOLKER , HERMANUTZ FRANK , GAEHR FRANK
IPC: C08J9/28
Abstract: The invention relates to the production of porous structures, selected from porous fibers, sheets, films, coatings or molded objects of synthetic polymers by dissolving the polymer in an ionic liquid and precipitating or coagulating the dissolved synthetic polymer by contacting the solution with a liquid precipitation medium.
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.023 seconds)
