公开(公告)号：DE102004006954A1

公开(公告)日：2005-09-01

申请号：DE102004006954

申请日：2004-02-12

Applicant: BASF AG

Inventor： WOHLFROMM HANS ,  THOM ARND ,  TER MAAT JOHAN HERMAN HENDRIK ,  BLOEMACHER MARTIN

IPC: B22F3/02 ,  B22F3/10 ,  B22F3/22 ,  B22F7/00 ,  B22F7/06

Abstract: Method for permanently bonding an injection-molded inorganic molding (1) with a similar second molding (2) comprises: (A) injection molding the first component from a mixture of powder and binder; (B) removing binder from it; and (C) sintering the two components after they have been placed against each other.

公开(公告)号：DE50105305D1

公开(公告)日：2005-03-17

申请号：DE50105305

申请日：2001-04-19

Applicant: BASF AG

Inventor： BLOEMACHER MARTIN ,  WEINAND DIETER ,  WOHLFROMM HANS ,  TER MAAT HERMAN

IPC: C04B35/632 ,  B22F1/00 ,  B22F3/02 ,  B22F3/10 ,  B22F3/22 ,  C04B35/00 ,  C04B35/486 ,  C04B35/634 ,  C08K3/00 ,  C08L59/00

Abstract: A binder B for inorganic powders comprises a mixture of b1 from 80 to 99.5% by weight of a polyoxymethlene homopolymer or copolymer B1 and b2 from 0.5 to 20% by weight of a polymer system B2 which is not miscible with B1 and comprises b21 from 5 to 100% by weight of polytetrahydrofuran B21 and b22 from 0 to 95% by weight of at least one polymer B22 of C 2-8 -olefins, vinylaromatic monomers, vinyl esters of aliphatic C 1-8 -carboxylic acids, vinyl C 1-8 -alkyl ethers or C 1-12 -alkyl (meth)acrylates.

公开(公告)号：DE10019447A1

公开(公告)日：2001-10-25

申请号：DE10019447

申请日：2000-04-19

Applicant: BASF AG

Inventor： BLOEMACHER MARTIN ,  WEINAND DIETER ,  WOHLFROMM HANS ,  TER MAAT JOHAN HERMAN HENDRIK

IPC: C04B35/632 ,  B22F1/00 ,  B22F3/02 ,  B22F3/10 ,  B22F3/22 ,  C04B35/00 ,  C04B35/486 ,  C04B35/634 ,  C08K3/00 ,  C08L59/00 ,  B22C1/22 ,  C08L29/00 ,  C08J5/04

Abstract: A new binder for inorganic powders comprises a mixture containing (wt.%): a polyoxymethylene homo- or copolymerisate B1 (80-99.5) and a polymer system B2 (0.5-20) immiscible with B1 from polytetrahydrofuran B21 (5-100) and a polymer B22 (0-99.5) from 2-8C olefins, vinylaromatic monomers, vinyl esters of aliphatic 1-8C carboxylic acids, vinyl 1-8C alkylethers or 1-12C alkyl(meth)acrylates. INDEPENDENTR CLAIMS are included for: (1) Thermoplastic masses for the preparation of inorganic molded bodies containing (vol.%): (a) at least one sinterable inorganic powder A (40-85), (b) at least one binder B (15-60), and (c) at least one dispersion adjuvant C (0-5), where the sum of A, B, and C = 100 vol.%; (2) preparation of thermoplastic masses by melting of component B and mixing in of component A and optionally component C; (3) preparation of molded bodies from powder A by (1) injection molding , extrusion, or pressing of a green body (sic), (2) removal of the binder by treatment of the green body (sic) at 20-180 deg C for 24 hours in a gaseous acid containing atmosphere, (3) subsequent heating for 0.1-122 hours at 250-500 deg C, and (4) sintering of the binder-free green body (sic) obtained.

公开(公告)号：MX2007015634A

公开(公告)日：2008-02-15

申请号：MX2007015634

申请日：2006-06-07

Applicant: BASF AG

Inventor： WOHLFROMM HANS ,  MAAT JOHAN HERMAN HENDRIK TER ,  BLOMACHER MARTIN ,  CHENG TSUNG-CHIEH ,  MARTISCHIUS FRANZ-DIETER ,  THOM ARND

IPC: B22F3/10 ,  B22F3/00 ,  C04B35/638 ,  F27B9/04 ,  F27B9/30

Abstract: El aparato para la remocion catalitica continua de aglutinante de cuerpos configurados metalicos y/o de ceramica producidos mediante moldeo por inyeccion de polvo, que comprende un horno de remocion de aglutinante a traves del cual los cuerpos configurados pasan en una direccion de transporte y son llevados a una temperatura de proceso apropiada, una instalacion de alimentacion para introduccion de un gas de proceso que se requiere para remocion de aglutinante y comprende un reactivo, cuando menos una instalacion para la introduccion de un gas protector hacia un espacio de reaccion del horno de remocion de aglutinante y una flama para quemar los productos de reaccion gaseosos obtenidos en la remocion de aglutinante, en donde uno o mas dispositivos que conducen a un flujo del gas de proceso dirigido transversalmente a la direccion de transporte en el aparato estan presentes.

公开(公告)号：PT1563931E

公开(公告)日：2007-05-31

申请号：PT05002766

申请日：2005-02-10

Applicant: BASF AG

Inventor： WOHLFROMM HANS ,  THOM ARND D I ,  MAAT JOHAN D I TER ,  BLOEMACHER MARTIN

IPC: B22F3/22 ,  B22F3/02 ,  B22F3/10 ,  B22F7/00 ,  B22F7/06

公开(公告)号：ES2236223T3

公开(公告)日：2005-07-16

申请号：ES01931625

申请日：2001-04-19

Applicant: BASF AG

Inventor： BLOMACHER MARTIN ,  WEINAND DIETER ,  WOHLFROMM HANS ,  TER MAAT JOHAN HERMAN HENDRIK

IPC: B22F1/00 ,  B22F3/02 ,  B22F3/10 ,  B22F3/22 ,  C04B35/632 ,  C04B35/00 ,  C04B35/486 ,  C04B35/634 ,  C08K3/00 ,  C08L59/00

Abstract: Agente aglutinante B para polvos de material inorgánico, que contiene una mezcla de b1 un 80 a un 99, 5 % en peso de un homo- o copolímero de polioximetileno B1, y b2 un 0, 5 a un 20 % en peso de un sistema polímero B2 no miscible con B1, constituido por b21 un 10 a un 90 % en peso de politetrahidrofurano B21 con un peso molecular (valor de media ponderal) de

公开(公告)号：AT288942T

公开(公告)日：2005-02-15

申请号：AT01931625

申请日：2001-04-19

Applicant: BASF AG

Inventor： BLOEMACHER MARTIN ,  WEINAND DIETER ,  WOHLFROMM HANS ,  TER MAAT JOHAN HERMAN HENDRIK

IPC: C04B35/632 ,  B22F1/00 ,  B22F3/02 ,  B22F3/10 ,  B22F3/22 ,  C04B35/00 ,  C04B35/486 ,  C04B35/634 ,  C08K3/00 ,  C08L59/00

Abstract: A binder B for inorganic powders comprises a mixture of b1 from 80 to 99.5% by weight of a polyoxymethlene homopolymer or copolymer B1 and b2 from 0.5 to 20% by weight of a polymer system B2 which is not miscible with B1 and comprises b21 from 5 to 100% by weight of polytetrahydrofuran B21 and b22 from 0 to 95% by weight of at least one polymer B22 of C 2-8 -olefins, vinylaromatic monomers, vinyl esters of aliphatic C 1-8 -carboxylic acids, vinyl C 1-8 -alkyl ethers or C 1-12 -alkyl (meth)acrylates.

公开(公告)号：AU1860100A

公开(公告)日：2000-06-19

申请号：AU1860100

申请日：1999-11-25

Applicant: BASF AG

Inventor： HESSE WERNER ,  WOHLFROMM HANS ,  UGGOWITZER PETER ,  SPEIDEL MARKUS

IPC: C22C29/00 ,  B22F3/02 ,  B22F3/10 ,  B22F3/22 ,  B24D3/06 ,  C22C1/05 ,  C22C29/02 ,  C22C29/06 ,  C22C29/08 ,  C22C29/16 ,  C23C8/24

Abstract: Hard sintered moldings having a nickel- and cobalt-free, nitrogen-containing steel as a binder of the hard phase, processes for the powder metallurgical production of these hard sintered moldings, in particular by powder injection molding, and powder injection molding materials for the production of these hard sintered moldings by powder injection molding.

公开(公告)号：BR9404365A

公开(公告)日：1995-07-04

申请号：BR9404365

申请日：1994-11-07

Applicant: BASF AG

Inventor： TRUBENBACH PETER ,  MCKEE GRAHAM EDMUND ,  WOHLFROMM HANS

IPC: C04B35/622 ,  B22F1/00 ,  B22F3/10 ,  B22F3/22 ,  C04B35/565 ,  C04B35/634 ,  C04B35/638 ,  C08K3/14 ,  C08K3/22 ,  C08K3/08 ,  C08L59/04

Abstract: Process for producing shaped sintered parts containing finely divided carbon by shaping a mixture of a) a ceramic and/or metallic powder and b) polyoxymethylene and/or a copolymer containing a predominant proportion of oxymethylene units to give a green body, removing the binder by treatment with a gaseous acid, pyrolysis and sintering, with there being added to the mixture of a) and b) a thermoplastic c) which, at temperatures of from 90 to 220 DEG C, is molten, miscible with polyoxymethylene and stable and does not undergo a crosslinking reaction with formaldehyde, and also a composition for this process.