公开(公告)号：DE2417792A1

公开(公告)日：1975-10-30

申请号：DE2417792

申请日：1974-04-11

Applicant: BASF AG

Inventor： WILD HANS DIPL CHEM DR ,  JECKEL GUENTHER ,  ECHTE ADOLF DIPL CHEM DR ,  ZIZLSPERGER JOHANN DIPL CHEM D ,  REFFERT RUDI WILHELM ING GRAD ,  THIELEN GUNTER DIPL ING DR

IPC: B29C47/10 ,  B29C48/76 ,  B29B1/10 ,  B29F3/03

Abstract: Incorporation of (I) additives, e.g. fillers, plasticisers, pigments, stabilisers or lubricants, into (II) plastic matls. is affected with simultaneous elimination of volatile components, in a horizontal extruder for heating, mixing, transporting and extruding the mixt. by (a) initially introducing (I) into the extruder (1) in a downwards direction (4) in the advancement direction of the prod. (b) next introducing (II) as a molten mase, soln. or dispersion in an upwards direction (b), and (c) allowing the major part of the volatile components to escape from the extruder by an orifice (8) placed vertically above the feed orifice (b) for (II). Process combines efficient removal of volatiles with rapid mixing, transport and extrusion of the prod. with low heat/energy ratio.

公开(公告)号：DE2509744A1

公开(公告)日：1976-09-23

申请号：DE2509744

申请日：1975-03-06

Applicant: BASF AG

Inventor： WILD HANS DIPL CHEM DR ,  JECKEL GUENTER ,  ECHTE ADOLF DIPL CHEM DR ,  ZIZLSPERGER JOHANN DIPL CHEM D ,  REFFERT RUDI ,  THIELEN GUNTER DIPL ING DR

IPC: B29C47/10 ,  B29C48/76 ,  B29B1/10 ,  B29F3/03

Abstract: Incorporation of (I) additives, e.g. fillers, plasticisers, pigments, stabilisers or lubricants, into (II) plastic matls. is affected with simultaneous elimination of volatile components, in a horizontal extruder for heating, mixing, transporting and extruding the mixt. by (a) initially introducing (I) into the extruder (1) in a downwards direction (4) in the advancement direction of the prod. (b) next introducing (II) as a molten mase, soln. or dispersion in an upwards direction (b), and (c) allowing the major part of the volatile components to escape from the extruder by an orifice (8) placed vertically above the feed orifice (b) for (II). Process combines efficient removal of volatiles with rapid mixing, transport and extrusion of the prod. with low heat/energy ratio.

公开(公告)号：DE2606612A1

公开(公告)日：1977-08-25

申请号：DE2606612

申请日：1976-02-19

Applicant: BASF AG

Inventor： FINK PETER ING GRAD ,  WILD HANS DIPL CHEM DR ,  ZIZLSPERGER JOHANN DIPL CHEM D ,  REFFERT RUDI WILHELM ING GRAD ,  THIELEN GUNTER DIPL ING DR

IPC: B01D1/22 ,  B01D19/00 ,  B29B13/02 ,  C08F6/10 ,  F28F7/02

Abstract: A process for removing vaporizable constituents from high-viscosity solutions or melts of thermoplastics by continuous evaporation along a heated devolatilization zone and separation of the vapor phase from the liquid phase in a downstream separating vessel. The plastic solution or melt is first heated stepwise in increments, in the devolatilization zone, while the product is in the form of thin layers from about 0.5 to 4 mm, so as to maintain a temperature difference of less than 50 DEG C. between the heat transfer medium and the plastic solution or melt until the devolatilization temperature is reached, the distribution of the solution or melt to form thin layers of product taking place while the temperature conditions still correspond to those of the feed of solution or melt, after which the vaporizable constituents are evaporated so as to form a two-phase system of vapor and melt, and the heat of evaporation absorbed is substantially returned to the product during the evaporation along the devolatilization zone. The process permits the removal of vaporizable constituents under mild conditions.

公开(公告)号：DE2539102A1

公开(公告)日：1977-03-17

申请号：DE2539102

申请日：1975-09-03

Applicant: BASF AG

Inventor： REFFERT RUDI WILHELM ING GRAD ,  WILD HANS DIPL CHEM DR ,  THIELEN GUNTER DIPL ING DR ,  ZIZLSPERGER JOHANN DIPL CHEM D ,  JECKEL GUENTER ,  ECHTE ADOLF DIPL CHEM DR

IPC: C08F6/00 ,  B29C47/10 ,  B29C48/76 ,  C08G85/00 ,  B29F3/03

Abstract: Elimination is effected from a molten mass, soln. or dispersion by introducing the preheated material into the base part of a horizontal extruder under a pressure corresp., at the preheating temp., at least to the satn. pressure of the volatiles. The material is heated as it advanced through the extruder so that evapn. of the volatiles begins as the material enters the extruder, the major part of the volatiles leaving the extruder through an orifice situated vertically above the inlet orifice. The treated material is then extruded. Very rapid and efficient elimination of volatiles is obtd. The process is capable of treating the plastic materials at high flow rates. Material having a very low volatiles content, e.g. 0.1 wt. %, can be obtd.

公开(公告)号：DE2447369A1

公开(公告)日：1976-04-22

申请号：DE2447369

申请日：1974-10-04

Applicant: BASF AG

Inventor： BOEHM GEORG DIPL ING DR ,  ZIZLSPERGER JOHANN DIPL CHEM D ,  KICK ROLF ING GRAD ,  THIELEN GUNTER DIPL ING DR

IPC: B01F23/47 ,  B29B7/00 ,  B29B7/32 ,  B29B7/58 ,  B29B7/74 ,  B29B7/80 ,  B29B7/94 ,  B29B9/00 ,  B29C47/10 ,  B29B1/04

Abstract: Equipment for blending a low viscosity liquid (I) (0.01-10 poise) in to a high viscosity liquid (IIe (100-10,000 poise) divides the flow of (IIe into several treams of relatively small cross-section flowing past porous walls for admitting (I) from a region of higher pressure. For general use, but esp. for adding blowing agent, lubricant, stabilisers etc. directly to polymer melts. Attains a high degree of distribution of (I) in (II) in the initial mixing zone, reducing the work subsequently required for homogenisation of the mixt.

公开(公告)号：DE2445734A1

公开(公告)日：1976-04-15

申请号：DE2445734

申请日：1974-09-25

Applicant: BASF AG ,  BEHN VERPACKUNG ERWIN

Inventor： GUENTHER WOLFGANG DIPL CHEM DR ,  THIELEN GUNTER DIPL ING DR ,  HACKNER HANS ,  HAUPTSTEIN FRIEDRICH FERDINAND

IPC: B65B1/18 ,  B65B1/22

公开(公告)号：DE2555079A1

公开(公告)日：1977-06-23

申请号：DE2555079

申请日：1975-12-06

Applicant: BASF AG

Inventor： THIELEN GUNTER DIPL ING DR ,  ZIZLSPERGER JOHANN DR ,  REFFERT RUDI WILHELM ING GRAD ,  WILD HANS DR ,  FINK PETER ING GRAD

IPC: B29B13/02 ,  F28F7/02 ,  B29B3/00

公开(公告)号：DE2507061A1

公开(公告)日：1976-09-16

申请号：DE2507061

申请日：1975-02-19

Applicant: BASF AG

Inventor： WILD HANS DIPL CHEM DR ,  JECKEL GUENTER ,  ECHTE ADOLF DIPL CHEM DR ,  ZIZLSPERGER JOHANN DIPL CHEM D ,  REFFERT RUDI WILHELM ING GRAD ,  THIELEN GUNTER DIPL ING DR

IPC: B29C47/10 ,  B29C48/76 ,  B29B1/10

Abstract: Incorporation of (I) additives, e.g. fillers, plasticisers, pigments, stabilisers or lubricants, into (II) plastic matls. is affected with simultaneous elimination of volatile components, in a horizontal extruder for heating, mixing, transporting and extruding the mixt. by (a) initially introducing (I) into the extruder (1) in a downwards direction (4) in the advancement direction of the prod. (b) next introducing (II) as a molten mase, soln. or dispersion in an upwards direction (b), and (c) allowing the major part of the volatile components to escape from the extruder by an orifice (8) placed vertically above the feed orifice (b) for (II). Process combines efficient removal of volatiles with rapid mixing, transport and extrusion of the prod. with low heat/energy ratio.