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公开(公告)号:DE59909949D1
公开(公告)日:2004-08-19
申请号:DE59909949
申请日:1999-10-19
Applicant: DEGUSSA
Inventor: BAUMANN DR , BEUTH REINHARD , KUEBBER JOSEF , SCHLOBOHM DR
IPC: C08J5/00 , B29C49/02 , B29C49/04 , B29C49/06 , B32B27/18 , B32B27/34 , C08K20060101 , C08K3/04 , C08K7/06 , C08L20060101 , C08L7/00 , C08L77/00 , C09K20060101 , C09K3/16 , F16L9/12 , F16L57/00
Abstract: A polyamide molding composition (I) contains 3-30 wt.% of a conductive carbon black (II) having a DBP absorption value of 100-300 ml/100 g, a specific surface area of 30-180 m /g, an ash content of less than 0.1 wt.% and a grit content of up to 25 ppm. An Independent claim is included for a polymeric article prepared from (I).
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公开(公告)号:DE50302649D1
公开(公告)日:2006-05-11
申请号:DE50302649
申请日:2003-08-05
Applicant: DEGUSSA
Inventor: MONSHEIMER SYLVIA , GREBE MAIK , BAUMANN DR , MUEGGE DR , CHRISTOPH WOLFGANG
IPC: B29C67/04 , C08J3/14 , B29C67/00 , B29K77/00 , B29K105/16 , C08K3/40 , C08K5/098 , C08L77/00 , C08L77/02
Abstract: A sinter powder (S1) comprises at least one polyamide (a) and at least one metal soap (b). The metal soap is montanic acid salt, dimer acid salt or fatty acid salt having at least 10 carbons. An Independent claim is included for a production of (S1) involving mixing (a) with (b).
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公开(公告)号:DE59812052D1
公开(公告)日:2004-11-11
申请号:DE59812052
申请日:1998-01-13
Applicant: DEGUSSA
Inventor: BAUMANN DR , WILCZOK NORBERT
Abstract: A method for the production of precipitated polyamide powder with narrow particle size distribution and low porosity comprises: (a) dissolving a (co)polyamide of lactams, omega -aminocarboxylic acids and/or diamines and dicarboxylic acids, each with NOTLESS 10 C, in a 1-3C aliphatic alcohol; (b) cooling to the seed formation temperature without precipitation; (c) cooling again until the solution is supersaturated; and (d) drying the suspension after precipitation.
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公开(公告)号:DE50004759D1
公开(公告)日:2004-01-29
申请号:DE50004759
申请日:2000-01-21
Applicant: DEGUSSA
Inventor: HAEGER DR , SCHMITZ DR , BAUMANN DR , FRANZMANN DR , OENBRINK DR
IPC: C08J5/12 , A61K31/44 , B32B27/32 , B32B27/34 , B32B27/36 , C04B35/46 , C07C275/24 , C08L67/02 , C08L77/00 , C08L77/06 , C09J167/02 , C09J177/00
Abstract: The thermoplastic composite material comprises a polyamide layer bonded to a polyester layer by means of an adhesive (I) comprising a blend of polyamide prepared from stoichiometric amounts of a diamine containing 6-12C atoms and dicarboxylic acids, and a polyester prepared from a diol containing a mixture of dicarboxylic acids. Thermoplastic composite material comprises a polyamide layer bonded to a polyester layer by means of an adhesive (I) comprising at least 50 wt.% of a blend of: (a) 20-80 wt.% of a polyamide prepared from stoichiometric amounts of a diamine containing 6-12C atoms and dicarboxylic acids, including at least 5 mol% of dicarboxylic acids (II) containing 10-36 C atoms; and (b) 20-80 wt.% of a polyester prepared from a diol containing 2-12 C atoms and a mixture of 30-95 mol% of an aromatic dicarboxylic acid containing 6-20 C atoms and 5-70 mol% (II). Independent claims are also included for the following: (1) production of the composite material by multicomponent injection molding, coextrusion or coextrusion/blow molding; (2) an adhesive as defined for (I).
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公开(公告)号:DE50003979D1
公开(公告)日:2003-11-13
申请号:DE50003979
申请日:2000-07-15
Applicant: DMC2 DEGUSSA METALS CATALYSTS
Inventor: BAUMANN DR , SANDRI WOLFGANG
IPC: C01G25/02
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公开(公告)号:DE50101434D1
公开(公告)日:2004-03-11
申请号:DE50101434
申请日:2001-10-26
Applicant: DEGUSSA
Inventor: HAEGER DR , SCHMITZ DR , RICHTER DR , BARTZ DR , BAUMANN DR , HIMMELMANN MARTIN , OENBRINK DR
Abstract: A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at least 5 000 Pa.s at 250° C. and at a shear rate of 0.1 l/s, and having a viscosity ratio of at least 7 at 250° C., when the melt viscosities at shear rates of 0.1 l/s and 100 l/s are compared with one another, has high melt stiffness and is easy to cut, and performs well in blow molding.
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