公开(公告)号：US3657388A

公开(公告)日：1972-04-18

申请号：US3657388D

申请日：1970-04-16

Applicant: HOECHST AG

Inventor： SCHWEIZER PETER ,  THALER HANS

IPC: C08G63/80 ,  C08G69/06 ,  C08G85/00 ,  C08G17/003 ,  C08G39/10

CPC classification number: C08G69/06 ,  C08G63/80 ,  C08G85/00

Abstract: LINEAR CONDENSATION POLYMERS OF HIGH MOLECULAR WEIGHT, FOR EXAMPLE, POLYESTERS OR POLYAMIDES, OR THE INITIAL PRODUCTS THEREOF ARE CONDENSED IN THE SOLID STATE IN THE FORM OF PRESSED OBJECTS OBTAINED FROM THE POWDERY OR VERY FINE-GRAINED MATERIALS HAVING A PARTICLE DIAMETER OF UP TO 2 MILLIMETERS. THE CONDENSATION IS THE SOLID STATE IS CARRIED OUT UNDER REDUCED PRESSURE OR IN AN INERT GAS ATMOSPHERE. THE PROCESS IS APPLICABLE, FOR EXAMPLE, TO POLYETHYLENE TEREPHTHALATE, NYLON 6 AND NYLON 66.

公开(公告)号：US3530098A

公开(公告)日：1970-09-22

申请号：US3530098D

申请日：1967-07-26

Applicant: HOECHST AG

Inventor： SCHWEIZER PETER

IPC: C08G63/84

CPC classification number: C08G63/84

公开(公告)号：US3591344A

公开(公告)日：1971-07-06

申请号：US3591344D

申请日：1968-07-05

Applicant: HOECHST AG

Inventor： SCHNOCK GUNTER ,  SCHWEIZER PETER

IPC: B01F7/00 ,  B01F7/02 ,  B01F7/04 ,  B01J10/02 ,  B01J19/18 ,  C08G63/78 ,  B01D1/22

CPC classification number: C08G63/785 ,  B01F7/00291 ,  B01F7/028 ,  B01F7/04 ,  B01J10/02 ,  B01J19/18 ,  B01J2219/00094 ,  B01J2219/00132 ,  B01J2219/00166 ,  B01J2219/00182 ,  B01J2219/182

Abstract: THE INVENTION PROVIDES A DEVICE FOR THE CONTINUOUS POLYCONDENSATION OF MELTS COMPRISING A HEATABLE, VACCUMTIGHT, CYLINDRICAL OR CONICAL, HORIZONTAL OR ALMOST HORIZONTAL REACTOR WITHINLET AT ONE END AND OUTLET AT THE OTHER END FOR THE MELT AND OUTLET FOR THE VAPOUR AND INSIDE OF THE REACTOR A STIRRER THE SHAPE OF WHICH IS ADAPTED TO THE SHAPE OF THE REACTOR AND THE CONTINUOUS OR DISCONTINUOUS AXIS OF ROTATION OF WHICH IS CONGRUENT WITH THE AXIS OF THE REACTOR. THE STIRRER IS SUBDIVIDED BY PLURALITY OF DISKS IN VERTICAL POSITION WITH RESPECT TO ITS AXIS WHICH DISKS ARE PROVIDED WITH PERFORATIONS STAGGERED FROM DISK TO DISK. PARALLEL TO THE AXIS OF THE STIRRER A PLURALITY OF PERIPHERALLY ARRANGED GROOVE- OR RIBBON-SHAPED DRAG ELEMENTS ARE PROVIDED WHICH ARE PARALLEL TO THE AXIS OF THE STIRRER AND ROD-SHAPED ELEMENTS ARE FIXED OUTSIDE OF THE RANGE OF IMMERSION OF THE STIRRER IN THE MELT, WHICH ELEMENTS PREFERABLY DEPART FORM THE TWO OUTER DISKS. WHEN THE STIRRER ROTATES THE DRAG ELEMENTS CONTINUOUSLY CONVEY THE MELT FROM THE BOTTOM OF THE REACTOR ON TO THE RODSHAPED ELEMENTS INSIDE OF THE STIRRER WHERE IT IS UNIFORMLY DISTRIBUTED IN A THIN LAYER AND FROM WH ERE IT RETURNS INTO THE SUMP OF THE REACTOR.

公开(公告)号：US3501263A

公开(公告)日：1970-03-17

申请号：US3501263D

申请日：1967-11-08

Applicant: HOECHST AG

Inventor： SCHWEIZER PETER

IPC: C01B25/163 ,  C01B25/16 ,  C01G17/00 ,  C08G63/86 ,  C01B25/26

CPC classification number: C08G63/863 ,  C01B25/16 ,  C01G17/00

公开(公告)号：US3459711A

公开(公告)日：1969-08-05

申请号：US3459711D

申请日：1966-11-18

Applicant: HOECHST AG

Inventor： HARTMANN ADOLF ,  SCHWEIZER PETER

IPC: C08G63/86 ,  C08G17/015

CPC classification number: C08G63/863