公开(公告)号：JPH073521A

公开(公告)日：1995-01-06

申请号：JP3802094

申请日：1994-03-09

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  GROH WERNER ,  MACHOLDT HANS-TOBIAS ,  BOENING PETER

IPC: D01D5/34 ,  B01D39/08 ,  B01D39/16 ,  D01F1/09 ,  D01F1/10 ,  D01F6/88 ,  D01F8/00 ,  D01F8/04 ,  D04H1/42 ,  D04H1/4266 ,  D04H1/4382 ,  D04H1/55 ,  D04H3/16 ,  D04H13/00 ,  D06M10/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/20 ,  D06M101/22 ,  D06M101/26 ,  D06M101/28 ,  D06M101/32 ,  D06M101/34 ,  D06M101/36 ,  H01G7/02

Abstract: PURPOSE: To provide a process for production of fibers having superior spun fiber properties, eminently improved half-life of charge and improved charge stability. CONSTITUTION: Electret fibers having improved charge stability are composed of a material which predominantly contains a fiber-forming polymer or polycondensate and an org. or organometallic charge control compd., as contained in toners for electrophotographic processes, wherein 0.01-3 wt.%, preferably 0.01-10 wt.%, particularly preferably 0.1-5 wt.%, based on the weight of the material, of the org. or organometallic charge control compd. is contained. The preparation thereof is also provided.

公开(公告)号：DK0705931T3

公开(公告)日：2000-05-01

申请号：DK95112913

申请日：1995-08-17

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  ERNST-AUGUST DR ALBERS ,  WERNER DR GROH ,  HEYER ACHIM

IPC: D01F6/92 ,  B01D39/08 ,  D01F1/09 ,  D01F6/90 ,  D04H1/42 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/541 ,  D04H1/542 ,  D04H1/55 ,  D04H13/00

Abstract: A non-woven fabric of electret fibres is predominantly made of a fibre-forming polymer or polycondensate and 0.01-30, pref. 0.01-10, and esp. 0.1-5, wt.% of an organic or organometallic charge control agent. The fabric contains ≥ 2 sorts of electret fibres which are made from different materials. Also claims dust filters and dust wiping cloth made from the non-woven fabric; and the use of the non-woven fabric in fire dust filters and in dust wiping cloths.

公开(公告)号：FI954033A0

公开(公告)日：1995-08-28

申请号：FI954033

申请日：1995-08-28

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  ALBERS ERNST-AUGUST ,  GROH WERNER ,  HEYER ACHIM

IPC: D01F6/92 ,  B01D39/08 ,  D01F1/09 ,  D01F6/90 ,  D04H1/42 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/541 ,  D04H1/542 ,  D04H1/55 ,  D04H13/00 ,  D04H

Abstract: A non-woven fabric of electret fibres is predominantly made of a fibre-forming polymer or polycondensate and 0.01-30, pref. 0.01-10, and esp. 0.1-5, wt.% of an organic or organometallic charge control agent. The fabric contains ≥ 2 sorts of electret fibres which are made from different materials. Also claims dust filters and dust wiping cloth made from the non-woven fabric; and the use of the non-woven fabric in fire dust filters and in dust wiping cloths.

公开(公告)号：DE4327595A1

公开(公告)日：1995-02-23

申请号：DE4327595

申请日：1993-08-17

Applicant: HOECHST AG

Inventor： EICHENAUER DIETER DR ,  GROH WERNER DR ,  MACHOLDT HANS-TOBIAS DR ,  DAHRINGER JOERG ,  JUNG HOLGER DR ,  NEUERT RICHARD DR

IPC: B01D39/16 ,  B01D39/08 ,  C08K5/00 ,  C08L77/00 ,  C08L77/10 ,  D01F6/60 ,  D01F6/90 ,  D04H1/42 ,  D04H1/4342 ,  D04H1/541 ,  D04H1/55 ,  D04H3/16 ,  C09K3/16 ,  G03G9/097

Abstract: The invention relates to compositions containing an aromatic polyamide (nylon) which is soluble in organic solvents and from 0.01 to 30 % by weight, based on the weight of the composition, of organic or of organometallic charge-control agents. The compositions can be employed for the production of shaped structures, in particular fibres; these fibres are preferably employed for the production of nonwovens which can be used for the production of dust filters.

公开(公告)号：FI941069A0

公开(公告)日：1994-03-07

申请号：FI941069

申请日：1994-03-07

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  GROH WERNER ,  MACHOLDT HANS-TOBIAS ,  BOENING PETER

IPC: D01D5/34 ,  B01D39/08 ,  B01D39/16 ,  D01F1/09 ,  D01F1/10 ,  D01F6/88 ,  D01F8/00 ,  D01F8/04 ,  D04H1/42 ,  D04H1/4266 ,  D04H1/4382 ,  D04H1/55 ,  D04H3/16 ,  D04H13/00 ,  D06M10/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/20 ,  D06M101/22 ,  D06M101/26 ,  D06M101/28 ,  D06M101/32 ,  D06M101/34 ,  D06M101/36 ,  H01G7/02 ,  D01F

Abstract: Described are electret fibres with improved charge stability (stabilisation) which consist of a material which predominantly contains a fibre-forming addition or condensation polymer and 0.01 to 30% by weight (preferably 0.01 to 10, in particular 0.1 to 5, % by weight), based on the weight of the material, of organic or organometallic charge control agents, as is contained in toners for electrophotographic processes, and a process for the production thereof. Also described are textile materials containing these electret fibres.

公开(公告)号：DE4321289A1

公开(公告)日：1995-01-05

申请号：DE4321289

申请日：1993-06-26

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  GROH WERNER ,  MACHOLDT HANS-TOBIAS

IPC: B01D39/08 ,  D01F1/10 ,  D01F8/00 ,  D04H1/42 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/541 ,  D04H1/55 ,  H01G7/02 ,  D01F6/44 ,  D01F6/88 ,  D01F2/28 ,  D02G3/00 ,  D01D5/08 ,  D01D5/34 ,  B01D46/00

Abstract: Published without abstract.

公开(公告)号：FI954033A

公开(公告)日：1996-03-02

申请号：FI954033

申请日：1995-08-28

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  ALBERS ERNST-AUGUST ,  GROH WERNER ,  HEYER ACHIM

IPC: D01F6/92 ,  B01D39/08 ,  D01F1/09 ,  D01F6/90 ,  D04H1/42 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/541 ,  D04H1/542 ,  D04H1/55 ,  D04H13/00 ,  D04H1/46 ,  D04H1/58

Abstract: A non-woven fabric of electret fibres is predominantly made of a fibre-forming polymer or polycondensate and 0.01-30, pref. 0.01-10, and esp. 0.1-5, wt.% of an organic or organometallic charge control agent. The fabric contains ≥ 2 sorts of electret fibres which are made from different materials. Also claims dust filters and dust wiping cloth made from the non-woven fabric; and the use of the non-woven fabric in fire dust filters and in dust wiping cloths.

公开(公告)号：DE4307398A1

公开(公告)日：1994-12-01

申请号：DE4307398

申请日：1993-03-09

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  GROH WERNER ,  MACHOLDT HANS-TOBIAS

IPC: B01D39/08 ,  D01F1/10 ,  D01F8/00 ,  D04H1/42 ,  D04H1/435 ,  D04H1/541 ,  D04H1/55 ,  H01G7/02 ,  D01D5/00

Abstract: Described are electret fibres having improved charge stability which are composed of a material which predominantly contains a fibre-forming addition or condensation polymer and 0.01 to 30 % by weight (preferably 0.01 to 10, especially 0.1 to 5, % by weight), based on the weight of the material, of organic or organometallic charge control compounds as present in toners for electrophotographic processes, and a process for producing same. Also described are textile materials containing these electret fibres.

公开(公告)号：NO940812L

公开(公告)日：1994-09-12

申请号：NO940812

申请日：1994-03-08

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  GROH WERNER ,  MACHOLDT HANS-TOBIAS ,  BOENING PETER

IPC: D01D5/34 ,  B01D39/08 ,  B01D39/16 ,  D01F1/09 ,  D01F1/10 ,  D01F6/88 ,  D01F8/00 ,  D01F8/04 ,  D04H1/42 ,  D04H1/4266 ,  D04H1/4382 ,  D04H1/55 ,  D04H3/16 ,  D04H13/00 ,  D06M10/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/20 ,  D06M101/22 ,  D06M101/26 ,  D06M101/28 ,  D06M101/32 ,  D06M101/34 ,  D06M101/36 ,  H01G7/02 ,  D01F6/00

Abstract: Described are electret fibres with improved charge stability (stabilisation) which consist of a material which predominantly contains a fibre-forming addition or condensation polymer and 0.01 to 30% by weight (preferably 0.01 to 10, in particular 0.1 to 5, % by weight), based on the weight of the material, of organic or organometallic charge control agents, as is contained in toners for electrophotographic processes, and a process for the production thereof. Also described are textile materials containing these electret fibres.

公开(公告)号：NO940812A

公开(公告)日：1994-09-12

申请号：NO940812

申请日：1994-03-08

Applicant: HOECHST AG

Inventor： DAHRINGER JOERG ,  GROH WERNER ,  MACHOLDT HANS-TOBIAS ,  BOENING PETER

IPC: D01D5/34 ,  B01D39/08 ,  D01F1/09 ,  D01F1/10 ,  D01F6/88 ,  D01F8/00 ,  D01F8/04 ,  D04H1/42 ,  D04H1/4266 ,  D04H1/4382 ,  D04H1/55 ,  D04H3/16 ,  D04H13/00 ,  D06M10/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/20 ,  D06M101/22 ,  D06M101/26 ,  D06M101/28 ,  D06M101/32 ,  D06M101/34 ,  D06M101/36 ,  H01G7/02 ,  D01F6/00

CPC classification number: D04H3/16 ,  B01D39/083 ,  B01D39/1607 ,  B01D2239/0233 ,  B01D2239/04 ,  B01D2239/0435 ,  B01D2239/0627 ,  B01D2239/065 ,  B01D2239/0659 ,  B01D2239/0681 ,  B01D2239/086 ,  B01D2239/1233 ,  D01F1/10 ,  D01F8/00 ,  D04H1/4266 ,  D04H1/4282 ,  D04H1/4291 ,  D04H1/43 ,  D04H1/4318 ,  D04H1/4382 ,  D04H1/55 ,  H01G7/023 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2927 ,  Y10T428/2982