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公开(公告)号：JP2000159716A
公开(公告)日：2000-06-13
申请号：JP35637199
申请日：1999-11-10
Applicant: BASF AG
Inventor： BURKART KIRSTEN , GUTH JOSEF , LETZELTER THOMAS , SCHWEINZER JUERGEN , STERZEL HANS-JOSEF
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an orthoester in a high yield, by reacting a trihaloalkane with an alkali metal alkoxide in the presence of a corresponding alcohol using a slurry of the alkali metal alkoxide. SOLUTION: This method for producing an orthoester comprises reacting (A) a 1,1,1-trihaloalkane (for example, 1,1,1-trihalomethane) with (B) an alkali metal alkoxide, for example, sodium methoxide, in the presence of a corresponding alcohol using a slurry (a suspension of the solid alkali metal alkoxide in the alcohol) by use of, for example, a blade drier, a kneader and a discotherm reactor. The slurry is preferably used in a state that a weight ratio of the solid component to the dissolved alkali metal alkoxide is at least 0.4. The reaction is preferably carried out using the component A in an amount of at most 1.1 mol per 3 mol of the component B.
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公开(公告)号：AT163951T
公开(公告)日：1998-03-15
申请号：AT95924254
申请日：1995-06-16
Applicant: BASF AG
Inventor： KRONER MATTHIAS , SCHORNICK GUNNAR , FEINDT HANS-JACOB , SCHWEINZER JUERGEN
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公开(公告)号：NO970804L
公开(公告)日：1997-04-21
申请号：NO970804
申请日：1997-02-21
Applicant: BASF AG
Inventor： SCHWEINZER JUERGEN , FISCHER JOACHIM , GRAVE ISIDOOR DE , KOEGEL WOLFRAM
Abstract: PCT No. PCT/EP95/03190 Sec. 371 Date Feb. 24, 1997 Sec. 102(e) Date Feb. 24, 1997 PCT Filed Aug. 11, 1995 PCT Pub. No. WO96/06129 PCT Pub. Date Feb. 29, 1996The invention relates to a process for the production of expanded polyolefin beads by impregnating polyolefin particles with volatile blowing agents in a fluidized bed.
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公开(公告)号：AT238261T
公开(公告)日：2003-05-15
申请号：AT99121810
申请日：1999-11-04
Applicant: BASF AG
Inventor： BURKART KIRSTEN , GUTH JOSEF , LETZELTER THOMAS , SCHWEINZER JUERGEN , STERZEL HANS-JOSEF
Abstract: Preparation of orthoesters by treatment of 1,1,1-trihaloalkanes with alkali-alcoholates in the presence of the corresponding alcohol where the alkali-alcoholate is added in the form of a mash in the alcohol.
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公开(公告)号：DE19920594A1
公开(公告)日：2000-11-09
申请号：DE19920594
申请日：1999-05-05
Applicant: BASF AG
Inventor： FRIEDRICH HOLGER , GUTH JOSEF , SCHWEINZER JUERGEN , LETZELTER THOMAS , BENDER HANS-JUERGEN
Abstract: The production of alkali metal alcoholates (I) by reacting alkali metals (II) with alcohols (III) is carried out in the presence of a catalyst. An Independent claim is also included for apparatus used to produce solid (I) free from alcohol of crystallization.
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Patent Agency Ranking
公开(公告)号：DE19826394A1
公开(公告)日：1999-12-16
申请号：DE19826394
申请日：1998-06-12
Applicant: BASF AG
Inventor： FRIEDRICH HOLGER , GUTH JOSEF , SCHWEINZER JUERGEN
Abstract: Alkali metals are reacted with alcohols in the presence of a catalyst to provide a simple, quick and cost effective access to alkali metal alcoholates. Production of alkali metal alcoholates comprises the reaction of an alkali metal with an alcohol in the presence of a catalyst.
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公开(公告)号：AT248795T
公开(公告)日：2003-09-15
申请号：AT99927790
申请日：1999-05-28
Applicant: BASF AG
Inventor： FRIEDRICH HOLGER , GUTH JOSEF , SCHWEINZER JUERGEN , LETZELTER THOMAS , BENDER HANS-JUERGEN
Abstract: The invention relates to a process for preparing alkali metal alkoxides by reacting alkali metals with alcohols in the presence of a catalyst, preferably a transition metal salt and especially iron(III) chloride.
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公开(公告)号：DE59506425D1
公开(公告)日：1999-08-26
申请号：DE59506425
申请日：1995-08-11
Applicant: BASF AG
Inventor： SCHWEINZER JUERGEN , FISCHER JOACHIM , DE GRAVE ISIDOOR , KOEGEL WOLFRAM
Abstract: PCT No. PCT/EP95/03190 Sec. 371 Date Feb. 24, 1997 Sec. 102(e) Date Feb. 24, 1997 PCT Filed Aug. 11, 1995 PCT Pub. No. WO96/06129 PCT Pub. Date Feb. 29, 1996The invention relates to a process for the production of expanded polyolefin beads by impregnating polyolefin particles with volatile blowing agents in a fluidized bed.
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公开(公告)号：AT182345T
公开(公告)日：1999-08-15
申请号：AT95944703
申请日：1995-08-11
Applicant: BASF AG
Inventor： SCHWEINZER JUERGEN , FISCHER JOACHIM , DE GRAVE ISIDOOR , KOEGEL WOLFRAM
Abstract: PCT No. PCT/EP95/03190 Sec. 371 Date Feb. 24, 1997 Sec. 102(e) Date Feb. 24, 1997 PCT Filed Aug. 11, 1995 PCT Pub. No. WO96/06129 PCT Pub. Date Feb. 29, 1996The invention relates to a process for the production of expanded polyolefin beads by impregnating polyolefin particles with volatile blowing agents in a fluidized bed.
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公开(公告)号：DE59501608D1
公开(公告)日：1998-04-16
申请号：DE59501608
申请日：1995-06-16
Applicant: BASF AG
Inventor： KRONER MATTHIAS , SCHORNICK GUNNAR , FEINDT HANS-JACOB , SCHWEINZER JUERGEN
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