Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Schwab; Peter
Address:
Bad Durkheim, DE
No. of patents:
26
Patents:












Patent Number Title Of Patent Date Issued
7102047 High metathesis activity ruthenium and osmium metal carbene complexes September 5, 2006
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The car
6887434 Preparation of propene and, if desired, 1-butene May 3, 2005
Propene and, if desired, 1-butene are prepared by a) reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements, b) sub
6806325 High metathesis activity ruthenium and osmium metal carbene complexes October 19, 2004
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene
6740726 Polyisocyanates as coating components for coating means rich in solids May 25, 2004
A description is given of polyisocyanates of the formula I ##STR1##in which R and R' are identical or different and are alkyl groups having 1-4 carbon atoms and n is on average from 1.5 to 5and also of a process for preparing these polyisocyanates in which a polyamine of the formul
6737555 Method for oligomerizing C6-olefins May 18, 2004
In a process for oligomerizing C.sub.6 -olefins by reactin of a C.sub.6 -olefin-containing reaction mixture over a nickel-containing fixed-bed catalyst, the reaction over the fixed-bed catalyst is run at a conversion to oligomerized C.sub.6 -olefins of not more than 30% by weight, based
6737553 Method for producing surfactant alcohols and surfactant alcohol ethers, the resulting products a May 18, 2004
The invention describes a process for the preparation of novel surfactant alcohols and surfactant alcohol ethers by derivatization of olefins having from about 10 to 20 carbon atoms or of mixtures of such olefins to give alkanols, and optional subsequent alkoxylation, which comprises
6677495 Oligomer mixtures derived from cyclopentene; method for the production and use thereof January 13, 2004
A process for preparing cyclopentene oligomer mixtures of the formula I ##STR1##comprises reacting in a homogeneously or heterogeneously catalyzed metathesis reaction a hydrocarbon mixture which contains cyclopentene and acyclic monoolefins and which originates from petroleum processing
6646172 Preparation of propene November 11, 2003
A multistage process for preparing propene, in which the first stage is the reaction of 1-butene, 2-butene and isobutene to give propene, 2-pentene and 2-methyl-2-butene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb, VIIb or
6580009 Flexible preparation of propene and hexene June 17, 2003
The process for preparing propene and hexene from a raffinate II feed stream comprising olefinic C.sub.4 -hydrocarbons comprises a) a metathesis reaction in which butenes present in the feed stream are reacted with ethene in the presence of a metathesis catalyst comprising at least on
6538168 Preparation of C5-/C6-olefins March 25, 2003
A process for preparing C.sub.5 /C.sub.6 -olefins from an olefinic starting stream comprising C.sub.4 -hydrocarbons comprises a) carrying out a metathesis reaction in the presence of a metathesis catalyst so as to convert the 1-butene, 2-butene and isobutene present in the starting st
6515084 High metathesis activity ruthenium and osmium metal carbene complexes February 4, 2003
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene
6506944 Preparation of substituted olefins January 14, 2003
C.sub.6 compounds of the formula (I)are prepared by self metathesis or cross metathesis of compounds of the formulae (II) and/or (III)where E, E.sup.1 are independently --CHO, --COOH, --COOR.sup.2, --C(O)NR.sup.3 R.sup.4, --CN, R, R.sup.1 are independently H, C.sub.1-12 -alkyl, C.sub.6
6500975 Cationic ruthenium complexes, their production and their use December 31, 2002
Cationic ruthenium complexes of the formula A or B or mixtures containing them, ##STR1##where B may be stabilized by a further ligand L.sub.4 and X is an anion which does not coordinate or coordinates weakly to the metal center, Y is a monodentate or multidentate anionic ligand,
6433240 Preparation of propene and, if desired, 1-butene August 13, 2002
Propene and, if desired, 1-butene are prepared by first reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst containing at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements. The prope
6271430 Preparation of propene August 7, 2001
The present invention relates to a process for preparing propene by metathesis of olefins. The process comprises preparing propene bya) in a first reactor (R1), reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst comprising at least one c
6245948 Preparation of tetrahydrofuran from dialkoxybutenes June 12, 2001
A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIwhere the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl
6232482 Method for producing ruthenium complexes May 15, 2001
Ruthenium complexes of the formula I or IVwhereX, Y are anionic ligands,R is hydrogen or a substituted or unsubstituted C.sub.1 -C.sub.20 -alkyl radical or C.sub.6 -C.sub.20 -aryl radical andL.sup.1 and L.sup.2 are, independently of one another, uncharged electron donor ligands, are prepared
6211391 High metathesis activity ruthenium and osmium metal carbene complexes April 3, 2001
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene
6169189 Process for preparing tetrahydrofuran from dialkoxybutenes January 2, 2001
A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIwhere the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl
6166279 Preparation of olefins December 26, 2000
The preparation of olefins from steam cracker or refinery C.sub.4 streams is carried out by selective hydrogenation of butadienes and acetylenic impurities in the steam cracker or refinery C.sub.4 stream, with simultaneous or subsequent, at least partial isomerization of 1-butene to
6130181 Metathesis catalyst, and its preparation and use October 10, 2000
A catalyst containing Re.sub.2 O.sub.7 on an inorganic support, wherein the Re.sub.2 O.sub.7 component is on the support in the form of Re.sub.2 O.sub.7 particles having a diameter of <1 nm, the rhenium surface area, determined by N.sub.2 O pulse chemisorption, is at least 0.4 m.sup.2
6111149 Process for preparing alcohols and/or aldehydes from olefins August 29, 2000
Alcohols and/or aldehydes are prepared from olefins by cross-metathesis of olefins with alcohols having at least one double bond in the molecule and in which at least one hydroxyl is in the allyl position relative to a C.dbd.C double bond over catalysts of the formula (I)with optional su
6111121 High metathesis activity ruthenium and osmium metal carbene complexes August 29, 2000
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene
6103939 Process for the preparation of 1,4-butanediol monoethers August 15, 2000
A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIwhere the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl
5952438 Polymeric polyamines from alternating polyketones September 14, 1999
Polymeric polyamines obtainable by reacting linear, alternating carbon monoxide/1-alkene copolymers with ammonia or amines of the formula (I)where R is --NH.sub.2, --OH, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.20 -aryl, C.sub.7 -C.sub.20 -arylalkyl, C.sub.7 -C.sub.20 -alkylaryl or an or
5831108 High metathesis activity ruthenium and osmium metal carbene complexes November 3, 1998
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene










 
 
  Recently Added Patents
Image forming apparatus
Optical article comprising a temporary anti-fogging coating with improved durability
Data architecture and user interface for plasma processing related software applications
Control of an electric machine
Image processing device, image processing method, and program
Methods and system for displaying segmented images
Distributed IPv6 neighbor discovery for large datacenter switching systems
  Randomly Featured Patents
Preparation of 1,3-dihydro-5-(pyridinyl)-2H-imidazo[4,5-b]pyridin-2-ones
N,N'-cycloalkyl/alkyl carboxamide 4H-imidazo-[4,5-b]pyridine compounds as PAF antagonists
Direct injection spark-ignited internal combustion engine
Pre-amplifier
Modular bullet trap cover
Organic EL display
System for switching between stand-by and wake-up states, of an information processing unit and of an analogue switch
Printer for electronic computer
Pattern-based defect description method
Method and apparatus for utilizing off-screen memory as a simultaneously displayable channel