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公开(公告)号:DE59004400D1
公开(公告)日:1994-03-10
申请号:DE59004400
申请日:1990-10-11
Applicant: BASF AG
IPC: B22F1/00 , B22F3/00 , B22F3/10 , B22F3/22 , C04B26/10 , C04B30/02 , C04B35/00 , C04B35/634 , C04B35/638 , C22C47/06 , C22C47/08 , C22C1/09
Abstract: For the production of preforms of ceramic and/or metallic fibres, a mixture containing the fibres and a thermoplastic binder is moulded by injection moulding or extrusion. The thermoplastic binder used is polyoxymethylene. After the moulding process, the polyoxymethylene is removed by treatment in a gaseous, acid-containing atmosphere or in a gaseous atmosphere containing boron trifluoride.
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公开(公告)号:DE3532866A1
公开(公告)日:1987-03-26
申请号:DE3532866
申请日:1985-09-14
Applicant: BASF AG
Inventor: ROOS HANS DR , SCHLAEFER DIETER DR , BITTLER KNUT DR , SCHIEDERMAIER RICHARD DR
Abstract: 1. A process for manufacturing an electrode consisting of an electrically conducting support structure bearing an electromechanically active boron-containing nickel layer deposited thereon by electroless deposition from a bath of a nickel(II) salt and a complexing agent by reduction with sodium boranate, wherein said bath contains a molar ratio of complexing agent : nickel salt of from 80 to 200, a molar ratio of sodium boranate : nickel salt of from 0.7 to 4.0, from 10 to 400 mmol/l of a hydroxide of sodium, potassium or an alkaline earth metal which is more strongly basic than ammonia, and from 10 to 80 mmol/l of nickel salt.
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公开(公告)号:DE3160562D1
公开(公告)日:1983-08-11
申请号:DE3160562
申请日:1981-07-09
Applicant: BASF AG
Inventor: OSTERTAG WERNER DR , BITTLER KNUT DR , BOCK GUSTAV DR
Abstract: Flaky mica pigments coated with metal oxides are prepared by oxidizing vaporizable metal carbonyls to metal oxides with oxygen at an elevated temperature in the presence of mica flakes which are kept in motion. The amount of carbonyls introduced into the reaction zone does not exceed 5% by volume of the amount of other gases introduced. The coated mica pigments are employed as pigments in surface coatings, plastics and glasses.
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公开(公告)号:DE4209631A1
公开(公告)日:1993-09-30
申请号:DE4209631
申请日:1992-03-25
Applicant: BASF AG
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公开(公告)号:DE4003219A1
公开(公告)日:1991-08-08
申请号:DE4003219
申请日:1990-02-03
Applicant: BASF AG
IPC: C04B38/00 , B22F1/00 , B22F3/00 , B22F3/10 , B22F3/22 , B28B1/52 , C04B26/04 , C04B26/10 , C04B30/02 , C04B35/634 , C04B35/638 , C04B35/76 , C04B35/80 , C04B38/04 , C22C47/06 , C22C47/08
Abstract: Preforms are produced from ceramic and/or metallic fibers by injection molding or extruding a mixture containing the fibers and a thermoplastic binder, said thermoplastic binder being polyoxymethylene, which after the shaping is removed by treatment in a gaseous acid-containing atmosphere or in a gaseous BF3-containing atmosphere.
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公开(公告)号:DE3901725A1
公开(公告)日:1990-07-26
申请号:DE3901725
申请日:1989-01-21
Applicant: BASF AG
Inventor: MAIR GUNTHER DR , BITTLER KNUT DR , STERZEL HANS-JOSEF DR
IPC: C01B21/06 , C01B21/068 , C01B21/076
Abstract: Pulverulent metal nitrides are prepared in a two-stage process by reacting metal-halogen compounds (metal halides) with ammonia in a first stage and heat treating the reaction products obtained in the first stage at temperatures of from 500 to 1700@C. The metal-halogen compounds are introduced in the form of droplets into a reaction zone having an ammonia atmosphere. The process is particularly suitable for preparing silicon nitride.
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公开(公告)号:DE3661241D1
公开(公告)日:1988-12-29
申请号:DE3661241
申请日:1986-09-17
Applicant: BASF AG
Inventor: BITTLER KNUT DR , BROECKER FRANZ JOSEF DR , AQUILA WERNER DR , SCHEURING HUBERTUS
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公开(公告)号:DE3260275D1
公开(公告)日:1984-07-26
申请号:DE3260275
申请日:1982-08-30
Applicant: BASF AG
Inventor: WIENAND HENNING DR , OSTERTAG WERNER DR , BITTLER KNUT DR
IPC: C09C1/00
Abstract: Yellow pigments containing bismuth vanadate and having the composition BiVO4.xBi2MoO6.yBi2WO6 where x is from 0.6 to 2.25 and y is from 0 to 0.1, are prepared by a process in which a solution containing a bismuth(III) salt, a vanadate and a molybdate is acidified until the pH is
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