公开(公告)号：ES2114235T3

公开(公告)日：1998-05-16

申请号：ES95100648

申请日：1995-01-19

Applicant: BASF AG

Inventor： GUNTHERBERG NORBERT DR ,  HOFMANN JURGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  SEITZ FRIEDRICH DR ,  GAUSEPOHL HERMANN DR

IPC: B29B7/20 ,  B29B7/26 ,  B29B7/46 ,  B29B13/06 ,  B29C47/78 ,  B29C48/76 ,  B29K21/00 ,  B29C47/76

公开(公告)号：CA2266420A1

公开(公告)日：1998-04-02

申请号：CA2266420

申请日：1997-09-12

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT ,  MAILAHN ELMAR ,  OHLIG HILMAR ,  HOFMANN JUERGEN ,  CZAUDERNA BERNHARD ,  BUS KLAUS ,  GRABOWSKI SVEN

IPC: B29B7/48 ,  B29B7/58 ,  B29B13/06 ,  B29C48/40 ,  B29C48/67 ,  B29C48/76 ,  B29C63/00 ,  C08J3/20 ,  C08J3/205 ,  C08J5/18 ,  C08L21/00 ,  C08L51/04 ,  B29C47/40 ,  B29C47/64 ,  B29C47/76

Abstract: A process is disclosed for producing thermoplastics modified to be impactresistant or polymer blends containing such modified thermoplastics. The thermoplastics or polymer blends contain: (A) 5 to 95 wt % of at least one water-wet elastomer component A which contains up to 60 wt % residual water; (B) 5 to 95 wt % of at least one thermoplastic polymer B; (C) 0 to 95 wt % of at least another polymer C; and (D) 0 to 70 wt % additives D. The elastomer component A is mixed with the thermoplastic polymer B, if available with the other polymer C and if available with the additives D in a screw-machine while mechanically dewatering the elastomer component A. The process is characterised in that components A, B, C and D are supplied to an extruder with at least two screws that rotate in the same or opposite directions and have a diameter Dscrew. Seen in the feeding direction (downstream), the extruder substantially consists of at least one dosing section in which the elastomer component A is supplied to the extruder by a dosing device; at least one squeezing section for dewatering the elastomer component A having at least one pressure element and at least a corresponding dewatering opening located upstream of the (first) pressure element at a distance therefrom equal to at least one screw diameter Dscrew; at least one feeding section in which the thermoplastic polymer B is fed into the extruder as a molten mass; at least one plasticising section fitted with mixing and/or kneading elements; at least one degassing section with at least one degassing hole in which the residual water is removed as steam; and an extraction zone. The water expelled through the dewatering openings is partially or totally present in the liquid phase, and components C and/or are supplied together or separately, either together with components A and/or B or separately from A and B in one or more of the above-mentioned extruder sections.

公开(公告)号：ES2112071T3

公开(公告)日：1998-03-16

申请号：ES96104479

申请日：1996-03-21

Applicant: BASF AG

Inventor： GUNTHERBERG NORBERT DR ,  HOFMANN JURGEN ,  MAILAHN ELMAR ,  OHLIG HILMAR ,  GRABOWSKI SVEN DR ,  CZAUDERNA BERNHARD DR

IPC: B29B7/48 ,  B29B7/58 ,  B29B7/88 ,  B29B13/06 ,  B29C48/395 ,  B29C48/76 ,  C08J3/20 ,  C08L9/00 ,  C08L21/00 ,  C08L25/04 ,  C08L27/06 ,  C08L33/04 ,  C08L33/12 ,  C08L51/00 ,  C08L51/04 ,  B29C47/38 ,  B29C47/76

Abstract: A process is claimed for the prodn. of impact-modified thermoplastics (I) by mixing a moist elastomer component (A) contg. up to 60 wt% residual water with a thermoplastic polymer (B) and other polymers (C) and additives (D) in a screw machine, with mechanical dehydration of component (A). The process is carried out in a synchronous twin screw extruder with the following sequence of sections in the direction of feed: (1) metering section(s) for introducing component (A) into the extruder by means of a metering device, (2) squeezing section(s) for removing the water, with accumulator element(s) and associated water outlet(s), (3) section(s) in which polymer (B) is added as a melt, (4) section(s) fitted with mixing, kneading and/or other plasticising elements, (5) degassing section(s) with gas outlets, in which residual water is removed as vapour, and (7) a discharge zone. The water emerging from the outlets in section (2) is partly or completely in the liq. phase; components (C) and/or (D) are added in one or more of the above sections, either together or separately and together with or apart from (A) and/or (B). Also claimed are impact-modified thermoplastic moulding materials (I) obtd. by this process.

公开(公告)号：DE4402394A1

公开(公告)日：1995-08-03

申请号：DE4402394

申请日：1994-01-27

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT DR ,  HOFMANN JUERGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  SEITZ FRIEDRICH DR ,  GAUSEPOHL HERMANN DR ,  KOCH JUERGEN DR ,  DECKERS ANDREAS DR

IPC: B29B7/20 ,  B29B7/26 ,  B29B7/46 ,  B29B13/06 ,  B29C47/78 ,  B29C48/76 ,  B29K21/00 ,  B29B7/84

公开(公告)号：CA2266420C

公开(公告)日：2003-12-02

申请号：CA2266420

申请日：1997-09-12

Applicant: BASF AG

Inventor： OHLIG HILMAR ,  MAILAHN ELMAR ,  GRABOWSKI SVEN ,  BUS KLAUS ,  CZAUDERNA BERNHARD ,  HOFMANN JURGEN ,  GUNTHERBERG NORBERT

IPC: B29B7/48 ,  B29B7/58 ,  B29B13/06 ,  B29C48/40 ,  B29C48/67 ,  B29C48/76 ,  B29C63/00 ,  C08J3/20 ,  C08J3/205 ,  C08J5/18 ,  C08L21/00 ,  C08L51/04 ,  B29C47/40 ,  B29C47/64 ,  B29C47/76

Abstract: A process is disclosed for producing thermoplastics modified to be impact-resistant or polymer blends containing such modified thermoplastics, The thermoplastics or polymer blends contain: (A) 5 to 95 wt % of at least one water-wet elastomer component A which contains up to 60 wt % residual water; (B) 5 to 95 wt % of at least one thermoplastic polymer B; (C) 0 to 95 wt % of at least another polymer C; and (D) 0 to 70 wt % additives D. The elastomer component A is mixed with the thermoplastic polymer B, if available with the other polymer C and if available with the additives D in a screw-machine while mechanically dewatering the elastomer component A. The process is characterised in that components A, B, C and D are supplied to an extruder with at least two screws that rotate in the same or opposite directions and have a diameter D screw. Seen in the feeding direction (downstream), the extruder substantially consists of at least one dosing section in which the elastomer component A is supplied to the extruder by a dosing device; at least one squeezing section for dewatering the elastomer component A having at least one pressure element and at least a corresponding dewatering opening located upstream of the (first) pressure element at a distance therefrom equal to at least one screw diameter D screw; at least one feeding section in which the thermoplastic polymer B is fed into the extruder as a molten mass; at least one plasticising section fitted with mixing and/or kneading elements; at least one degassing section with at least one degassing hole in which the residual water is removed as steam; and an extraction zone. The water expelled through the dewatering openings is partially or totally present in the liquid phase, and components C and/or are supplied together or separately, either together with components A and/or B or separately from A and B in one or more of the above-mentioned extruder sections.

公开(公告)号：ES2187182T3

公开(公告)日：2003-05-16

申请号：ES99939785

申请日：1999-08-06

Applicant: BASF AG

Inventor： ANDERLIK RAINER ,  KREMESKOTTER JENS ,  MAILAHN ELMAR ,  GUNTHERBERG NORBERT ,  ITTEMANN PETER ,  HOFMANN JURGEN

IPC: C08J3/20 ,  A01N25/18 ,  A61L9/04 ,  C08J3/22 ,  C08J5/00 ,  C08K5/00 ,  C08K5/07 ,  C08L91/00 ,  C08L101/00

公开(公告)号：ES2158515T3

公开(公告)日：2001-09-01

申请号：ES97910284

申请日：1997-09-12

Applicant: BASF AG

Inventor： GUNTHERBERG NORBERT ,  HOFMANN JURGEN ,  MAILAHN ELMAR ,  OHLIG HILMAR ,  CZAUDERNA BERNHARD ,  GRABOWSKI SVEN

IPC: B29B7/48 ,  B29B7/58 ,  B29B13/06 ,  B29C48/40 ,  B29C48/67 ,  B29C48/76 ,  B29C63/00 ,  C08J3/20 ,  C08J3/205 ,  C08J5/18 ,  C08L21/00 ,  C08L51/04 ,  B29C47/40 ,  B29C47/64 ,  B29C47/76

Abstract: PCT No. PCT/EP97/05000 Sec. 371 Date Mar. 25, 1999 Sec. 102(e) Date Mar. 25, 1999 PCT Filed Sep. 12, 1997 PCT Pub. No. WO98/13412 PCT Pub. Date Apr. 2, 1998A process for preparing thermoplastics or polymer blends comprising (A) from 5 to 95% of a water-moist elastomer component containing up to 60% of residual water, (B) from 5 to 95% of a thermoplastic polymer, (C) from 0 to 95% of a further polymer, and (D) from 0 to 70% of additives, said process comprising mixing the components A to D in an extruder with mechanical dewatering of component A, wherein the extruder has at least two rotating screws and, in the conveying direction, is essentially composed of a metering section into which component A is fed, a squeeze section which serves for dewatering component A and contains a retarding element and an associated dewatering orifice which is present upstream of the retarding element by a distance corresponding to at least one screw diameter, a feed section in which the thermoplastic polymer B is introduced as a melt into the extruder, a plastication section with mixing or kneading elements, a devolatilization section with an orifice and in which the remaining water is removed as steam, and a discharge zone.

公开(公告)号：ES2117890T3

公开(公告)日：1998-08-16

申请号：ES96104389

申请日：1996-03-20

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  BUS KLAUS ,  CZAUDERNA BERNHARD

IPC: C08J5/18 ,  B29B7/48 ,  B29B7/58 ,  B29C47/40 ,  B29C48/76 ,  C08J3/20 ,  C08J3/205 ,  C08L25/04 ,  C08L27/06 ,  C08L33/04 ,  C08L33/12 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  D01F6/00 ,  B29C47/76

Abstract: The prepn. of deep draw-modified thermoplastics (T) is by mechanical dewatering of a wet elastomer component (A) contg. up to 50 wt.% residual water and mixing dewatered (A) with a thermoplastic polymer (B) in a screw - by adding (A) to a twin-screw extruder with rotating screws. This extruder contains the following sections (in the direction of flow) : (1) feed for adding (A) to the extruder ; (2) at least one crusher for dewatering (A) that contains one or more barriers each with an opening through which at least some of the water passes as a liq. ; (3) at least one section to which molten (B) is added ; (4) one or more sections with mixing, kneading and / or plasticising devices ; (5) at least one degassing section with one or more gas outlets through which the rest of the water is removed as steam ; and (6) an exit zone. Deep draw-modified moulding materials prepd. by this process are also claimed.

公开(公告)号：DE59600302D1

公开(公告)日：1998-08-06

申请号：DE59600302

申请日：1996-03-20

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  BUS KLAUS ,  CZAUDERNA BERNHARD ,  GRABOWSKI SVEN

IPC: C08J5/18 ,  B29B7/48 ,  B29B7/58 ,  B29C47/40 ,  B29C48/76 ,  C08J3/20 ,  C08J3/205 ,  C08L25/04 ,  C08L27/06 ,  C08L33/04 ,  C08L33/12 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  D01F6/00 ,  B29C47/76

Abstract: The prepn. of deep draw-modified thermoplastics (T) is by mechanical dewatering of a wet elastomer component (A) contg. up to 50 wt.% residual water and mixing dewatered (A) with a thermoplastic polymer (B) in a screw - by adding (A) to a twin-screw extruder with rotating screws. This extruder contains the following sections (in the direction of flow) : (1) feed for adding (A) to the extruder ; (2) at least one crusher for dewatering (A) that contains one or more barriers each with an opening through which at least some of the water passes as a liq. ; (3) at least one section to which molten (B) is added ; (4) one or more sections with mixing, kneading and / or plasticising devices ; (5) at least one degassing section with one or more gas outlets through which the rest of the water is removed as steam ; and (6) an exit zone. Deep draw-modified moulding materials prepd. by this process are also claimed.

公开(公告)号：ES2104481T3

公开(公告)日：1997-10-01

申请号：ES96104464

申请日：1996-03-21

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  OHLIG HILMAR ,  MAILAHN ELMAR ,  BUS KLAUS ,  CZAUDERNA BERNHARD

IPC: B29B7/88 ,  B29B7/48 ,  B29B7/58 ,  B29B13/06 ,  B29C47/40 ,  B29C48/395 ,  B29C48/76 ,  C08G85/00 ,  C08J3/20 ,  C08J3/205 ,  C08L25/04 ,  C08L27/06 ,  C08L33/04 ,  C08L33/12 ,  C08L33/18 ,  C08L33/20 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  C08L101/00 ,  B29C47/38 ,  B29C47/76

Abstract: A process is claimed for the prodn. of impact-modified thermoplastics (I) by (a) mechanical dehydration of a moist elastomer component (A) contg. up to 60 wt% residual water and (b) mixing the dried elastomer obtd. (A') with a thermoplastic polymer (B) in a screw machine. The process is carried out in a twin screw extruder with synchronous double-threaded screws and with the following sequence in the direction of feed: (1) a metering section for introducing component (A) into the extruder via a metering device, (2) squeezing section(s) for removing the water, with accumulator element(s) and associated water outlet(s), (3) section(s) fitted with a feeder screw or with mixing, kneading and/or other plasticising elements, (4) section(s) in which polymer (B) is added as a melt, (5) section(s) fitted with mixing, kneading and/or other plasticising elements, (6) degassing section(s) with gas outlets, in which residual water is removed as vapour, and (7) a discharge zone. The water emerging from the outlets in section (2) is partly or completely in the liq. phase, and the extruder is operated at a screw speed of 50-600 r.p.m., with a mean shear rate of 20-240 s . Also claimed are impact-modified thermoplastic moulding materials (I) obtd. by this process.