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公开(公告)号:DE4014978A1
公开(公告)日:1991-11-14
申请号:DE4014978
申请日:1990-05-10
Applicant: BASF AG
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公开(公告)号:DE3522359A1
公开(公告)日:1987-01-02
申请号:DE3522359
申请日:1985-06-22
Applicant: BASF AG
Inventor: HUPFER LEOPOLD DR , PAETSCH JUERGEN DR , HOTZ JOHANN , THIELE HEINO DR , ZETTLER HANS DIETER
Abstract: In order to compound organic materials which are crystalline under standard conditions, these materials, in the pulverulent and/or molten state, are processed in a self-purging, twin-screw extruder in which the screws rotate in the same direction, ejected through one or more narrow passages into a low pressure zone, cooled and comminuted to give particles. In order to improve the pourability and shelf life, the materials are completely crystallized by the time they reach the end of the screws, and are heated during discharge through the narrow passage, in order to form a melt film. Dust-free granules havig a smooth surface can be produced in this manner.
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公开(公告)号:DE3682235D1
公开(公告)日:1991-12-05
申请号:DE3682235
申请日:1986-06-19
Applicant: BASF AG
Inventor: HUPFER LEOPOLD DR , PAETSCH JUERGEN DR , HOTZ JOHANN , THIELE HEINO DR , ZETTLER HANS DIETER
Abstract: In the working up of organic materials which are normally crystalline, where the materials, as powder or liq. melt, are processed in a 2-shaft screw machine with the worm shafts rotating in the same direction, are expelled through a narrowed passage into a zone at low pressure, and are cooled and comminuted, the materials are heated to form a melt film during transit through the narrowed passage.
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公开(公告)号:DE1720259A1
公开(公告)日:1971-06-09
申请号:DE1720259
申请日:1967-01-07
Applicant: BASF AG
Inventor: RAICHLE LUDWIG DIPL-ING , JUNG HANS DR , HOTZ JOHANN , MICHEL HEINZ
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公开(公告)号:DE1454760A1
公开(公告)日:1969-05-08
申请号:DE1454760
申请日:1964-08-14
Applicant: BASF AG
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公开(公告)号:DE3726514A1
公开(公告)日:1989-02-16
申请号:DE3726514
申请日:1987-08-08
Applicant: BASF AG
Inventor: SCHUSTER LUDWIG DR , VILHUBER HEINZ GEORG DR , THIELE HEINO DR , HOTZ JOHANN , WEISS STEFAN DR
IPC: C07C51/295
Abstract: The invention relates to a process for the preparation of montanic acids by alkaline dehydrating oxidation of crude, non-deresinified montan waxes in molten form using anhydrous alkali metal hydroxide.
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公开(公告)号:FR1445865A
公开(公告)日:1966-07-15
申请号:FR27975
申请日:1965-08-11
Applicant: BASF AG
Inventor: HOTZ JOHANN , IMMEL WOLFGANG , KOCH KLAUS , MAHLER KARL , MUELLER HANS JUERGEN , RAICHLE LUDWIG , URBAN FRIEDRICH
IPC: B29B9/00
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公开(公告)号:DE2410825A1
公开(公告)日:1975-09-18
申请号:DE2410825
申请日:1974-03-07
Applicant: BASF AG
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公开(公告)号:CA791031A
公开(公告)日:1968-07-30
申请号:CA791031D
Applicant: BASF AG
Inventor: MAHLER KARL , URBAN FRIEDRICH , RAICHLE LUDWIG , IMMEL WOLFGANG , KOCH KLAUS , HOTZ JOHANN , MUELLER HANS-JUERGEN
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公开(公告)号:DE1704481A1
公开(公告)日:1971-05-27
申请号:DE1704481
申请日:1967-06-23
Applicant: BASF AG
Inventor: HOTZ JOHANN
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