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| Number | Title | Issue Date |
| 7173149 | Process for preparing alkynecarboxylic acids by oxidation of alkyne alcohols A process for preparing alkynecarboxylic acids includes the oxidation of an alkyne alcohol with a hypohalite in the presence of a nitroxyl compound at a pH of greater than 7 with continual addition of the alkyne alcohol and of the hypohalite to the reaction mixture.... | 02/06/2007 |
| 7153923 | Rapid-cure, one-component mixtures, which contain alkoxysilane-terminated polymers One-component, moisture curing compositions which exhibit rapid curing, even with exceptionally low levels of catalyst or with no catalyst at all, can be formulated from alkoxysilane-terminated polymers having alkoxysilane groups bonded to an electronegative, free e... | 12/26/2006 |
| 7081537 | Process for the electrophilic substitution of thiazolidines or oxazolidines A process for preparing α-functionalized thiazolidines or oxazolidines, each of which are oxycarbonyl-functionalized in the 4-position, by adding a base to a reaction mixture comprising an oxycarbonyl-functionalized thiazolidine or oxazolidine and an electrophile a... | 07/25/2006 |
| 7026425 | Moisture crosslinking elastomer composition The invention relates to moisture cross-linking compositions containing (A) 100 parts per weight of a silane-terminated polydiorganosiloxane-urea/urethane copolymer of general formula (1), and (B) between 0.1 and 20 parts per weight of silane of general formula (3):... | 04/11/2006 |
| 7026424 | Organopolysiloxane/polyurea/polyurethane block copolymers Organopolysiloxane/polyurea/polyurethane block copolymer elastomers exhibiting improved physical properties are prepared by reacting diisocyanates with aminoalkyl-functional organopolysiloxanes containing substantially no cyclic siloxanes, prepared by reacting a cyc... | 04/11/2006 |
| 7015331 | Non-proteinogenic L-amino acids Non-proteinogenic L-amino acids produced by direct fermentation of a microorganism strain known per se having a deregulated cysteine metabolism in a manner known per se, which comprises adding, during the fermentation, a nucleophilic compound to the fermentation bat... | 03/21/2006 |
| 7001751 | PyrF gene and the utilization thereof A pyrF gene is useful as a selection marker gene for an expression system for the production of proteins in mushrooms of the genus Trametes, Coriolus or Polyporus. The pyrF gene includes a DNA sequence SEQ ID NO: 1 from position 1133 up to and includin... | 02/21/2006 |
| 6943265 | Method for the production of hydroxyalkyl polysiloxanes The invention relates to a method for the production of hydroxyalkyl polysiloxanes of general formula (V) (SiO4/2)k(R12SiO3/2)m(R12SiO2/2)p(R1 | 09/13/2005 |
| 6939967 | Non-proteinogenic L-amino acids Process for production of non-proteinogenic L-amino acids by direct fermentation of a microorganism strain known per se having a deregulated cysteine metabolism in a manner known per se, which comprises adding, during the fermentation, a nucleophilic compound to the... | 09/06/2005 |
| 6924386 | Enantioselective reformatsky process for preparing optically active alcohols, amines and derivatives thereof A process is provided for preparing optically active alcohols, amines and derivatives thereof by reacting aldehydes or imines at a temperature of less than 15° C. in the presence of a chiral, enantiomerically pure auxiliary with an organozinc halide which is obtain... | 08/02/2005 |
| 6887700 | Process for the enzymatic preparation of enantiopure 1, 3-dioxolan-4-one and 1,3-oxathiolan-5-one derivatives A process is provided for preparing an enantiopure 1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivative, which includes bringing a mixture containing enantiomeric 1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivatives and an enzyme with hydrolytic activity into con... | 05/03/2005 |
| 6884909 | Process for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation of 2-butanone A process for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation, includes reacting 2-butanone with oxygen over a coated catalyst which is an inert nonporous support body and a catalytically active mixed oxide compositio... | 04/26/2005 |
| 6881855 | Norbornyl-substituted silanes and the use thereof Silanes of the formula Ra1R4-a-xSiLx (I) where each R is identical or different and is a monovalent, optionally substituted hydrocarbon radical which is free of aliphatic carbon—carbon multiple ... | 04/19/2005 |
| 6793777 | Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid The invention relates to a method for separating and purifying an aqueous mixture that mainly consists of acetic acid, formic acid and high-boiling substances by extraction with a solvent in a cyclic process. The inventive method is characterized in that the flow of... | 09/21/2004 |
| 6756216 | Process for producing non-proteinogenic L-amino acids by fermentation Process for production of non-protenogenic L-amino acids by direct fermentation of a microorganism strain known per se having a deregulated cysteine metabolism in a manner known per se, which comprises adding, during the fermentation, a nucleophilic compound to the ... | 06/29/2004 |
| 6730631 | Methods of producing monolithic oxidation catalysts and their use in gas phase oxidation of carbohydrates A method is for producing monolithic substrate catalysts and for their use in the gas phase oxidation of hydrocarbons. The catalysts are obtained by coating the catalyst substrate with a suspension that includes a catalytically active compound and one or more surfac... | 05/04/2004 |
| 6695952 | Method for the separation of and purification of an aqueous mixture consisting of the main components acetic acid and formic acid A method for the separation and purification of an aqueous mixture of main components, namely acetic acid and formic acid and non-volatiles by extraction, uses a solvent in a circulatory system. A raffinate stream is mixed with the larger proportion of wa... | 02/24/2004 |
| 6692706 | Process for preparing saturated carboxylic acids having from 1 to 4 carbon atoms A process for preparing saturated carboxylic acids having from 1 to 4 carbon atoms at a reaction temperature of from 100° C. to 400° C. and pressures of from 1.2×105 Pa to 51×105 Pa by gas phase oxidation of saturated and/or ... | 02/17/2004 |
| 6669828 | Cathode for electrolysis cells A cathode is made of an electrically conducting support with a coating of electrochemically deposited lead with a density between 0.001 and 2 g/cm3.... | 12/30/2003 |
| 6624114 | Supported catalysts and their use in the gas-phase oxidation of hydrocarbons The invention relates to supported catalysts consisting of an active material on an inert support in the shape of rings, wherein the rings have one or more notches in the upper and/or lower flat side of the ring.... | 09/23/2003 |
| 6620598 | Process for preparing O-acetyl-L serine by fermentation A process is provided for the fermentative preparation of O-acetyl-L-serine. A microorganism strain, which is derived from a wild type and which exhibits an increased endogenous formation of O-acetyl-L-serine and an increased efflux of O-acetyl-L-serine a... | 09/16/2003 |
| 6603034 | Preparation of organozinc halides from reactive halogen compounds and their use A process for preparing organozinc halides in solvents, includes reacting a reactive halogen compound with zinc in one or more carboxylic esters. It is also possible to prepare keto, hydroxyl and amino compounds of organozinc halides obtained in a first s... | 08/05/2003 |
| 6579705 | Process for preparing non-proteinogenic L-amino acids Process is provided for preparing a non-proteinogenic L-amino acid by means of an enzymic biotransformation in which O-acetyl-L-serine is reacted with a nucleophilic compound, while using an O-Acetyl-L-serine sulfhydrylase as catalyst, to give a non-prote... | 06/17/2003 |
| 6551797 | Expression system for producing proteins An expression system for producing a protein in a filamentous fungus, consisting of a) a host organism selected from the species Trametes and Polyporus and b) a DNS vector containing a selection marker gene. This selection marker gene code is a protein wh... | 04/22/2003 |
| 6534615 | Preparation of amino-functional siloxanes The invention relates to a process for preparing an amino-functional organosiloxane of the formula III, (SiO4/2)k (R1 SiO3/2)m (R12 SiO2/2)p (R13... | 03/18/2003 |
| 6531620 | Cyclic silazanes The invention relates to cyclic silazanes of the formula II ##STR1## in which R is a divalent, Si--C and C--N-bound, optionally cyano- or halogen-substituted C3 -C15 -hydrocarbon radical, in which one or more, non-adjacent methylene ... | 03/11/2003 |
| 6486338 | Preparation of organosilicon compounds containing , ଲ-unsaturated carboxylic acids Organosilicon compounds (P) containing ,ଲ-unsaturated carboxylic acid radicals, of the general formula (1) --A--O--C(O)--CR.dbd.CH2 (1), are prepared by a process in which, in a first step, organosilicon compounds (H) containing hydro... | 11/26/2002 |
| 6472192 | Cyclodextrin glycosyl transferases for producing γ-cyclodextrin CGTases, which, when converting starch or starch-like substrates to CD, produce γ-CD to an increased extent and still exhibit at least 60% of the specific total CGTase activity of the starting CGTase which was used for preparing the enzyme concerned. The... | 10/29/2002 |
| 6440328 | Preparation of acrylated liquid-crystalline compounds The invention relates to a one-step process for the preparation of acryloyl group-containing liquid-crystalline monomers of the general formula (1) (Z--Y1 --A2 --Y2 --)m M(--O--A1 -acrylate)n (1... | 08/27/2002 |
| 6423246 | Thermostable pigments, films and effect coatings, and mixtures for their production A mixture of crosslinkable liquid-crystalline substances having a chiral phase (LC mixture), containing polymerizable groups, where at least 90% of the polymerizable groups are part of molecules containing at least two polymerizable groups (crosslinker mo... | 07/23/2002 |
| 6372912 | Process for ring cleavage of thiazolidine derivatives Process for the hydrolytic ring cleavage of thiazolidine derivatives to give 2-aminomercaptan derivatives and carbonyl compounds, which comprises bringing an aqueous solution of the thiazolidine derivative into contact with an acidic cation exchanger in the H | 04/16/2002 |
| 6358574 | Liquid-crystalline silicones having increased UV stability Crosslinkable LC organosiloxanes exhibiting excellent UV stability, contain units of the general formula 1 [Rb Mesc SiO.sub.(4-b-c)/2 ] (1) in which R are C1 -C4 -alkyl radicals, Mes is at least one group of the general ... | 03/19/2002 |
| 6294231 | Optically anisotropic film, method of manufacturing the same, and liquid crystal display apparatus An optically anisotropic film obtained from a mixture comprising a polymer and a liquid crystal compound, wherein retardation of the optically anisotropic film at 80° C., 60° C. or 0° C. measured from a normal direction is 20-97%, 20-99% or 101-150%, r... | 09/25/2001 |
| 6232492 | Process for the preparation of N-aryl-N-hydroxamides The invention relates to a method for preparing n-aryl-n-hydroxamides, whereby arylhydroxamines are reacted with ketones to n-aryl-n-hydroxamides, without using acyloxindoles-generating solvents.... | 05/15/2001 |
| 6048987 | Process for producing coated catalysts for the synthesis of maleic anhydride by gas-phase oxidation There is a process for producing coated catalysts for the gas-phase oxidation of C4 hydrocarbons to maleic anhydride. A vanadyl phosphate catalyst precursor is prepared having a V/P ratio of from 1:0.5 to 1:2 and a mean vanadium oxidation state... | 04/11/2000 |
| 6023000 | Process for the preparation of aldehydes and ketones A process for the preparation of vinyl, alkynyl or aryl aldehydes or vinyl, alkynyl or aryl ketones includes reacting vinyl-, alkynyl- and aryl- and -methylene compounds with the aid of a mediator and an oxidant, wherein the mediator is selected from the ... | 02/08/2000 |
| 5972663 | Microorganisms and processes for the fermentative preparation of L-cysteine, L-cystine, N-acetylserine or thiazolidine derivatives Microorganisms and processes for the fermentative preparation of L-cysteine, L-cystine, N-acetylserine or thiazolidine derivatives. The microorganism strain which is suitable for the fermentative preparation of L-cysteine, L-cystine, N-acetylserine and/or... | 10/26/1999 |
| 5830692 | Expression system which can be regulated An expression system can be regulated by acetate, pH and oxygen, which expression system includes a trans-acting regulator protein and a promoter which can be activated by this protein. Any desired structural genes are maximally expressed under the contro... | 11/03/1998 |
| 5792719 | Supported catalyst for gas-phase oxidation reactions The invention relates to a supported catalyst for gas-phase reactions having an inert support body and a surface coating comprising a) at least 5% by weight of silicon carbide, b) from 5 to 90% by weight, calculated as oxide, of one or more titanium dioxide or... | 08/11/1998 |
| 5670239 | Composition for the delocalized marking of articles, its preparation and use A composition for the delocalized marking of articles, which makes the forging or improper use or exploitation of these articles difficult. It includes chemical elements having a K line of from 3.69 keV to 76.315 keV in defined distribu... | 09/23/1997 |
