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公开(公告)号：US3681466A
公开(公告)日：1972-08-01
申请号：US3681466D
申请日：1969-09-23
Applicant: BASF AG
Inventor： POMMER HORST , SEID BERNHARD , NUERRENBACH AXEL , KLOTMANN GEORG , GRASSNER HANS
IPC: C07C29/00 , C07C33/00 , C07C403/00
CPC classification number: C07C403/08 , C07C2601/16
Abstract: Continuous production of axerophthol by reaction of axerophthyl acetate with a lower alcohol using guanidine as transesterification catalyst in two stages, alkyl acetate and some of the excess alcohol being distilled off in the first stage and the remainder of the alcohol being removed in the second stage by distillation with a hydrocarbon as entrainer.
Abstract translation: 通过使用胍作为酯交换催化剂在两个阶段中通过乙酸半酯与低级醇反应连续生产萜烯酚，在第一阶段中将乙酸烷基酯和一些过量的醇在第二阶段被蒸馏除去，其余的醇在第二阶段被除去 用烃作为夹带剂进行蒸馏。
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公开(公告)号：DE58908582D1
公开(公告)日：1994-12-08
申请号：DE58908582
申请日：1989-08-19
Applicant: BASF AG
Inventor： BERBNER HEINZ , EBEL KLAUS DR , KUCZATY MICHAEL , SEID BERNHARD , WOERNER FRANK PETER DR , ZETTLER HANS DIETER
IPC: C08G12/32
Abstract: The present invention relates to a process for the continuous preparation of melamine-formaldehyde precondensate solutions, characterised in that melamine, formaldehyde and optionally modifiers and/or additives are metered into a continuous mixture, the homogeneous mixture is passed into a single- or twin-screw extruder, condensed at elevated temperature, cooled and discharged.
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公开(公告)号：AT71061T
公开(公告)日：1992-01-15
申请号：AT87118719
申请日：1987-12-17
Applicant: BASF AG
Inventor： KIENER VOLKER , NONN GUENTHER , SEID BERNHARD , SCHEWSKI HARALD , BUELLMEYER KARL
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公开(公告)号：DE3828793A1
公开(公告)日：1990-03-01
申请号：DE3828793
申请日：1988-08-25
Applicant: BASF AG
Inventor： BERBNER HEINZ , EBEL KLAUS DR , KUCZATY MICHAEL , SEID BERNHARD , WOERNER FRANK PETER DR , ZETTLER HANS DIETER
IPC: C08G12/32
Abstract: The present invention relates to a process for the continuous preparation of melamine-formaldehyde precondensate solutions, characterised in that melamine, formaldehyde and optionally modifiers and/or additives are metered into a continuous mixture, the homogeneous mixture is passed into a single- or twin-screw extruder, condensed at elevated temperature, cooled and discharged.
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公开(公告)号：DE3873609D1
公开(公告)日：1992-09-17
申请号：DE3873609
申请日：1988-05-11
Applicant: BASF AG
Inventor： GOESELE WILHELM DR , NONN GUENTHER DR , SCHREINER SIEGFRIED DR , SEID BERNHARD , THIELE HEINO DR
Abstract: A pumpable and non-sedimenting high-conc. paste is made by mixing powdered sodium dithionite (hyposulphite) with organic liq. which is inert relative to that material in an intensive mixer whose mixing and dispersal operation is divided into separate stages. Suitable appts. has a rapidly rotating single-shaft extruder with three separate linear feed worm section sepd. by mixing and dispersal elements whose gap from the surrounding cylindrical stator is less than for the worm sections. Pre-mixing takes place with organic liq. from an initial feeder while further liq. or liq. mixts. are injected before the mixing elements. The entire extruder has a tempering jacket, and discharges into a cooler taking the paste to about 30 deg.C before storage.
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Patent Agency Ranking
公开(公告)号：ZA883514B
公开(公告)日：1990-01-31
申请号：ZA883514
申请日：1988-05-18
Applicant: BASF AG
Inventor： GOESELE WILHELM , WILHELM GOESELE , NONN GUENTHER , GUENTHER NONN , SCHREINER SIEGFRIED , SIEGFRIED SCHREINER , SEID BERNHARD , BERNHARD SEID , THIELE HEINO , HEINO THIELE
Abstract: Highly concentrated pumpable hydrosulphite pastes which are free of sediments are prepared from solid and liquid feed materials by continuously mixing and dispersing pulverulent sodium dithionite (2) and an organic liquid (8) inert towards sodium dithionite in an intensive mixer (5) comprising mixing and dispersing elements arranged in steps.
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公开(公告)号：DE3716658A1
公开(公告)日：1988-12-01
申请号：DE3716658
申请日：1987-05-19
Applicant: BASF AG
Inventor： GOESELE WILHELM DR , NONN GUENTHER DR , SCHREINER SIEGFRIED DR , SEID BERNHARD , THIELE HEINO DR
Abstract: Highly concentrated pumpable hydrosulphite pastes which are free of sediments are prepared from solid and liquid feed materials by continuously mixing and dispersing pulverulent sodium dithionite (2) and an organic liquid (8) inert towards sodium dithionite in an intensive mixer (5) comprising mixing and dispersing elements arranged in steps.
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公开(公告)号：DE3225707A1
公开(公告)日：1984-01-12
申请号：DE3225707
申请日：1982-07-09
Applicant: BASF AG
Inventor： BERBNER HEINZ , BONITZ ECKARD DR , SEID BERNHARD , VOELKER HEINZ DR , ZETTLER HANS DIETER
IPC: B28B1/52 , C04B14/38 , C04B16/06 , C04B32/02 , C08K7/02 , D01F1/02 , D01F6/08 , D01F6/10 , D01F6/22 , D01F6/48 , D01F6/56 , C04B31/00 , B28B1/00 , C04B15/00 , C04B29/04 , C04B43/00
Abstract: The invention relates to a moulding composition which can be cured to form building elements, is based on conventional hydraulic binders and contains from 0.1 to 50% by weight, based on anhydrous binder, of fibrils. The fibrils comprise from 100 to 1% by weight of polyvinyl chloride or polystyrene and from 0 to 99% by weight of finely divided oxides, silicates, carbonates or sulphates of divalent to tetravalent metals, and have the following properties: Length: from 0.50 to 50 mm Thickness: from 0.1 to 50 mu m Specific surface area: from 1 to 100 m .g Schopper-Riegler degree of beating: from 10 to 80 DEG SR.
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公开(公告)号：CH631955A5
公开(公告)日：1982-09-15
申请号：CH161178
申请日：1978-02-14
Applicant: BASF AG
Inventor： SCHUSTER CHEM LUDWIG DR , SEID BERNHARD
IPC: C07C37/055 , C07C39/14
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公开(公告)号：ES2063089T3
公开(公告)日：1995-01-01
申请号：ES89115340
申请日：1989-08-19
Applicant: BASF AG
Inventor： BERBNER HEINZ , EBEL KLAUS DR , KUCZATY MICHAEL , SEID BERNHARD , WOERNER FRANK PETER DR , ZETTLER HANS DIETER
IPC: C08G12/32
Abstract: The present invention relates to a process for the continuous preparation of melamine-formaldehyde precondensate solutions, characterised in that melamine, formaldehyde and optionally modifiers and/or additives are metered into a continuous mixture, the homogeneous mixture is passed into a single- or twin-screw extruder, condensed at elevated temperature, cooled and discharged.
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