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

IPC: D01F2/00 ,  C08B16/00 ,  C08B30/06 ,  C08J3/14

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.

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：SG10201504251WA

公开(公告)日：2015-07-30

申请号：SG10201504251W

申请日：2011-05-31

Applicant: BASF SE

Inventor： SIEMER MICHAEL ,  RÖGER-GÖPFERT CORNELIA ,  MEIER NICOLE ,  RAETHER ROMAN BENEDIKT ,  ARNOLD MARCO ,  EMNET CHARLOTTE ,  MAYER DIETER ,  FLÜGEL ALEXANDER

公开(公告)号：AU2009331723B2

公开(公告)日：2015-04-02

申请号：AU2009331723

申请日：2009-12-10

Applicant: BASF SE

Inventor： SIEMER MICHAEL ,  KOLTZENBURG SEBASTIAN ,  KLEIN MICHAEL

IPC: C08G12/06 ,  C08G73/06 ,  C09K23/32 ,  C09K23/52

Abstract: The invention relates to a method for producing polymeric, ionic imidazolium compounds, characterized in that - an α-dicarbonyl compound, - an aldehyde, - at least one amino compound having at least two primary amino groups, - optionally an amino compound having only one primary amino group, and - a hydracid are reacted with each other, wherein optionally the carbonyl groups of the α-dicarbonyl compound and of the aldehyde can be present also as hemiacetals, acetals, hemiketals, or ketals.

公开(公告)号：ZA201105335B

公开(公告)日：2012-10-31

申请号：ZA201105335

申请日：2011-07-20

Applicant: BASF SE

Inventor： KLEIN MICHAEL ,  SIEMER MICHAEL ,  KOLTZENBURG SEBASTIAN

IPC: C09K23/32 ,  C09K23/52

Abstract: Process for preparing polymeric, ionic compounds comprising imidazolium groups, wherein an α-dicarbonyl compound, an aldehyde, at least one amino compound having at least two primary amino groups, if appropriate an amino compound having only one primary amino group and a protic acid, where the carbonyl groups of the α-dicarbonyl compound and of the aldehyde may, if appropriate, also be present as hemiacetal, acetal or hemiketal or ketal, are reacted with one another.

公开(公告)号：ZA201004814B

公开(公告)日：2011-09-28

申请号：ZA201004814

申请日：2010-07-08

Applicant: BASF SE

Inventor： SIEMER MICHAEL ,  MAASE MATTHIAS ,  RICHTER INGO

IPC: C07D20060101

公开(公告)号：SG171906A1

公开(公告)日：2011-07-28

申请号：SG2011040037

申请日：2009-12-10

Applicant: BASF SE

Inventor： SIEMER MICHAEL ,  KOLTZENBURG SEBASTIAN ,  KLEIN MICHAEL

IPC: C09K23/32 ,  C09K23/52

Abstract: Method for producing azoffini compoundsAbstract5 Process for preparing polymeric, ionic compounds crnpdsn fldazo9u whor&n • an a-dtarbonyi compound,altiehOe,10 - at :east one amino compound having at least two primary amino groups,if appropriate an amino compound having only one primary amino group arid a pro& acid,where the earbonyi groups of the a-cflearbonyl compound rtd of the a yd15 appropriate; also be present as hernjacetsF. acetai or herniketal or ketal,are reacteci with one anottNo suitable figure

公开(公告)号：ZA201002200B

公开(公告)日：2011-06-29

申请号：ZA201002200

申请日：2010-03-29

Applicant: BASF SE

Inventor： MORMANN WERNER ,  SIEMER MICHAEL ,  LENG WEI ,  MASSONNE KLEMENS

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.