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公开(公告)号:CA1333826C
公开(公告)日:1995-01-03
申请号:CA551584
申请日:1987-11-06
Applicant: BASF AG
Inventor: HASENBEIN NORBERT , BAUER PETER , SCHLEMMER LOTHAR , HAUSS ALFRED F , GROPPER HANS , OHLINGER RAINER
IPC: C08F2/02 , C08F8/44 , C08F255/02 , C09J4/00 , C09J151/06
Abstract: In a process for the peroxide-free grafting of ethylenically unsaturated carboxylic acids, carboxylic anhydrides and/or their derivatives to a homopolymer or copolymer of ethylene having a density equal to or greater than 0.930 g/cm3, the monomers to be grafted are used in a concentration of from 0.01 to 0.5% by weight and the grafting reaction is carried out at from 210 to 300.degree.C in a conventional extruder or mixer in the absence of a free radical initiator. The graft copolymers are used for the preparation of ionomers and adhesion promoters.
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公开(公告)号:NO173588C
公开(公告)日:1994-01-05
申请号:NO871512
申请日:1987-04-10
Applicant: BASF AG
Inventor: KLIMESCH ROGER GUENTHER , BLECKMANN GERHARD , FARWERCK KARL-PETER , SCHLEMMER LOTHAR , GOERTZ HANS-HELMUT
Abstract: Extrudable pharmaceutical mixtures are tableted by a continuous method in which the mixture is extruded and the still deformable extrudate is pressed between two rollers which are driven in opposite directions and possess depressions opposite one another in the roller shell, the form of these depressions determining the tablet shape.
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公开(公告)号:DE3786884D1
公开(公告)日:1993-09-09
申请号:DE3786884
申请日:1987-11-19
Applicant: BASF AG
Inventor: HASENBEIN NORBERT DR , BAUER PETER , SCHLEMMER LOTHAR , HAUSS ALFRED FRIEDRICH DR , GROPPER HANS DR , OHLINGER RAINER DR
IPC: C08F2/02 , C08F8/44 , C08F255/02 , C09J4/00 , C09J151/06
Abstract: Grafting of ethylenically unsatd. acids or anhydrides (or their derivs.) onto ethylene homo- or co-polymers of density 0.930 g/cc or higher is carried out in a conventional extruder or mixer at 1-500 bar in the absence of a catalyst which decomposes to give radicals. This is achieved by mixing 0.01-0.5 wt. pts. of the grafting monomer with 100 wt. pts. of molten ethylene polymer at 140 deg.C or above and then carrying out grafting at 210-300 deg.C..
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公开(公告)号:DE3880514D1
公开(公告)日:1993-06-03
申请号:DE3880514
申请日:1988-01-22
Applicant: BASF AG
Inventor: TAUBITZ CHRISTOF DR , GAUSEPOHL HERMANN DR , SEILER ERHARD DR , BOEHLKE KLAUS DR , SCHLEMMER LOTHAR
IPC: C08J3/20 , C08F283/08 , C08G65/48 , C08L71/12 , C08L77/00
Abstract: Continuous prodn. of thermoplastic polyphenylene ether /polyamide moulding materials in an extruder comprises (1) reacting in a first zone at 240-350 deg.C (by wt. w.r.t. total components (a1)-(a5): (a1) 50-99.5% of a polyphenylene ether, (a2) 0-45% of a vinylaromatic polymer, (a3) 0.05-10% of (a31) an alpha-beta-unsatd. carboxylic acid of derivs. of this of formula R1-CO-C(R2)=C(R3)-CO-R4 (I) in which R1 and R4=OH, aryloxy, alkoxy, aralkoxy or cycloalkoxy gps. with up to 12C, or R1 and R4 together=-O- or -NR5-; R2 and R3=H, alkyl or cycloalkyl with up to 12C, aryl or Cl, or R2 and R3 may together form a 4-12C alkylene gp.; R5=alkyl, cycloalkyl, aralkyl or aryl gp. wit- up to 12C, which may be substd. with 1-4C alkyl or alkoxy gps., and/or (a32) a monomer contg. an amide gp. and a polymerisable double bond, and/or (a33) a monomer contg. a lactam gp. and a polymerisable double bond; and opt. (a4) 0-80% other monomers suitable for grafting and (a5) 0-20% radical initiators, for 0.1-15 mins. to give a modified polyphenylene ether A; and (2) subsequently introducing into a further zone of the extruder at 250-350 deg.C (by wt. w.r.t. total components A-F); (B) 5-95 wt.% of a polyamide, (C) 0-90 wt.% of an unmodified polyphenylene ether, (D) 0-45% of a vinyl aromatic polymer, (E) 0-40% of an impact-improving modifying rubber, (F) 0-60% additives and processing aids, and finally extruding the mixt..
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公开(公告)号:DE4131872A1
公开(公告)日:1993-04-08
申请号:DE4131872
申请日:1991-09-25
Applicant: BASF AG
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公开(公告)号:FI88577B
公开(公告)日:1993-02-26
申请号:FI871538
申请日:1987-04-08
Applicant: BASF AG
Inventor: KLIMESCH ROGER GUENTHER , BLECKMANN GERHARD , FARWERCK KARL-PETER , GOERTZ HANS-HELMUT , SCHLEMMER LOTHAR
Abstract: Extrudable pharmaceutical mixtures are tableted by a continuous method in which the mixture is extruded and the still deformable extrudate is pressed between two rollers which are driven in opposite directions and possess depressions opposite one another in the roller shell, the form of these depressions determining the tablet shape.
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公开(公告)号:AT82495T
公开(公告)日:1992-12-15
申请号:AT89105917
申请日:1989-04-05
Applicant: BASF AG
Inventor: KLIMESCH ROGER DR , BLECKMANN GERHARD , SCHLEMMER LOTHAR
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公开(公告)号:AT76648T
公开(公告)日:1992-06-15
申请号:AT89111193
申请日:1989-06-20
Applicant: BASF AG
Inventor: MUEHLENBERND THOMAS DR , HASENBEIN NORBERT DR , KOEHLER GERNOT DR , SCHLEMMER LOTHAR
IPC: C08F8/44 , C08F210/00 , C08F210/02 , C08F220/00 , C08F220/04
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公开(公告)号:DE3485331D1
公开(公告)日:1992-01-23
申请号:DE3485331
申请日:1984-04-09
Applicant: BASF AG
Inventor: MC KEE GRAHAM EDMUND DR , OHLIG HILMAR , REIMANN HORST DR , SCHLEMMER LOTHAR , THEYSOHN RAINER DR , DORST HANS GEORG DR , ZAHRADNIK FRANZ DR
Abstract: Compsns. (I) contains A) 60-95 pts.wt. at least one crystalline thermoplastic polyamide, B) 5-40 pts.wt. at least one rubber-elastic polymerisate without hard external shell, prepd. by emulsion polymerisation, having particle size distribution substantially governed by polymerisation process and particle size under 2 microns, dispersed in, and predominantly insol. in A), where sum of A) + B) = 100 pts.wt., opt. C) up to 100 pts.wt. glass fibres or other reinforcing filler, and opt. D) effective amts. of conventional auxiliary agents. Pref. A) is linear, with m.pt. above 200 deg.C and relative viscosity (1% in conc. H2SO4 at 23 deg.C) 2.5-4.0, partic. poly(hexamethylene adipamide) or polycaprolactam. B) is at least partially crosslinked and has glass transition temp. below -20 deg.C; has on surface of particle mol. gps. causing adhesion to mols. of A), partic. COOH, carboxylic ester, or carboxylic amide gps.
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公开(公告)号:AT70548T
公开(公告)日:1992-01-15
申请号:AT86102198
申请日:1986-02-20
Applicant: BASF AG
Inventor: ZIEGLER WALTER DR , BRANDSTETTER FRANZ DR , WEISS FRANK DR , SCHLEMMER LOTHAR
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