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| Number | Title | Issue Date |
| 7074875 | RTV-1 silicone elastomer compositions which crosslink by means of alkoxy groups Crosslinkable RTV-1 compositions with enhanced physical properties include an alkoxy-functional polydiorganosiloxane having alkoxy-functional silyalkylene groups linked to a polydiorganosiloxane via ureaalkylene groups, prepared by reacting an α,ω-dihydroxyorganop... | 07/11/2006 |
| 7060760 | Silane-terminated polydiorganosiloxane urethane copolymer Curable, silane-terminated polydiorganosiloxane-urethane copolymers exhibit the beneficial properties of isocyanate-terminated polysiloxane-urethane copolymers without the detriments associated with free isocyanate groups. ... | 06/13/2006 |
| 6548700 | Process for the precipitation of cystine A process for precipitating cystine from a solution in sulfuric acid, includes forming a mixture of a solution of cystine in aqueous sulfuric acid and of an aqueous solution of a base by simultaneous metering the cystine solution and the aqueous base solu... | 04/15/2003 |
| 6514730 | Secretion of hirudin derivatives A process for obtaining hirudin derivatives from E. coli secretor mutants which entails: (1) construction of a recombinant vector on which there is located the gene coding for a hirudin derivative directly downstream of a DNA section which codes for a bac... | 02/04/2003 |
| 6429331 | Process for preparing saturated carboxylic acids having from 1 to 4 carbon atoms from butenes and butanes 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 ... | 08/06/2002 |
| 6407030 | Method for producing catalysts for synthesizing maleic anhydride by means of gas phase oxidation A method is provided for producing catalysts useful for synthesizing maleic anhydride by oxidizing saturated and/or unsaturated C4 hydrocarbons. A vanadium (V) compound is reacted with a mixture of phosphorous and phosphoric acids in a particul... | 06/18/2002 |
| 6388119 | Preparation of organosilanes The invention relates to a process for preparing a silane of the formula I R6 R5 CH--R4 CH--SiR1 R2 R3 (I), which comprises reacting a silane of the formula II HSiR1 R2 R3 | 05/14/2002 |
| 6320075 | Process and apparatus for preparing saturated carboxylic acids having one to four carbon atoms A process and an apparatus are for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation at a reaction temperature of from 100° C. to 400° C. and pressures of from 1.2×105 to 51×105 Pa i... | 11/20/2001 |
| 6316639 | Process for the preparation of cyclic N-hydroxydicarboximides The invention discloses a process for the preparation of cyclic N-hydroxydicarboximides, involving reacting a dicarboxylic acid or anhydride thereof with a salt of hydroxylamine in solution without the further addition of a base.... | 11/13/2001 |
| 6297403 | Process for the preparation of aldehydes and ketones A process for the preparation of vinyl, alkynyl, aryl or heteroaryl aldehydes or vinyl, alkynyl, aryl or heteraoryl ketones includes reacting vinyl-, alkynyl-, aryl- and heteroarylmethyl and -methylene compounds with the aid of a mediator and an oxidant, ... | 10/02/2001 |
| 6281385 | Process for preparing acetic acid by gas-phase oxidation of saturated C4-hydrocarbons and their mixtures with unsaturated C4-hydrocarbons A process for preparing acetic acid by gas-phase oxidation of saturated C4 -hydrocarbons and their mixtures with unsaturated C4 -hydrocarbons in a tube reactor using a coated catalyst comprising an inert nonporous support body and a ... | 08/28/2001 |
| 6274763 | Shell catalyst for producing acetic acid by gas phase oxidation of unsaturated C4 -hydrocarbons The invention relates to a shell catalyst for producing acetic acid by gas-phase oxidation of unsaturated C4 -hydrocarbons, comprising an inert non-porous carrier and a catalytically active mixed oxide material applied on the outer surface of t... | 08/14/2001 |
| 6258209 | Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances, includes (a) if appropriate at least one oxidation catalyst; (b) at least one suitable oxidizing agent; and (c) at least one mediator, ... | 07/10/2001 |
| 6242245 | Multicomponent system for modifying, degrading or bleaching lignin or lignin-containing materials, and processes for its use A multicomponent system for modifying, degrading or bleaching lignin and lignin-containing materials or similar substances, includes an oxidoreductase and an oxidant suitable for the oxidoreductase and a mediator and at least one enzymatically active addi... | 06/05/2001 |
| 6218168 | Process for preparing O-acetylserine, L-cysteine and L-cysteine-related products A process is for preparing O-acetylserine, L-cysteine and sulphurous compounds derived therefrom using feedback-resistant serine acetyl transferases. In comparison with the wild-type enzyme, these serine acetyl transferases have reduced sensitivity to the... | 04/17/2001 |
| 6211410 | Method for producing organic hydroxylamines According to the inventive method for producing organic hydroxylamines, at least one organic nitro compound is partially hydrogenated in the presence of an organic base or ammonia, a trivalent phosphor compound and a hydrogenation catalyst. The invention ... | 04/03/2001 |
| 6180373 | Microorganisms for the production of tryptophan and process for the preparation thereof A tryptophan producing strain of microorganism is selected from E. coli and Corynebacteria and is tryptophan feedback resistant and serine feedback resistant. The serine feedback resistance is by a mutation in a serA allele, where the mutated serA allele ... | 01/30/2001 |
| 6169213 | Process for the preparation of heteroaryl aldehydes and heteroaryl ketones Process for the preparation of heteroaryl aldehydes or heteroaryl ketones by reaction with heteroarylmethanols with the aid of a mediator and an oxidant, wherein the mediator is selected from the group of the aliphatic, cycloaliphatic, heterocyclic or aro... | 01/02/2001 |
| 6071438 | Process for the production of three-dimensionally crosslinked polymeric materials having broad cholesteric reflection bands, and filters, reflectors and polarizers produced by this process The invention relates to a process for the preparation of three-dimensionally crosslinked polymeric materials having a broad cholesteric reflection band, which comprises bringing polymeric materials having cholesteric properties and an extractable materia... | 06/06/2000 |
| 6069282 | 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 by reaction of vinyl-, alkynyl- or aryl- methanols with the aid of a mediator and an oxidant, wherein the mediator is selected from the group of the alipha... | 05/30/2000 |
| 6040411 | Low glass temperature organosiloxanes Organosiloxanes having low transition temperatures comprise at least one group of the general formula 1 --(CH2)p --(O)q --C6 H4 --Z--(COO)s --[A--M]t --E--(CH2 --CH2 | 03/21/2000 |
| 5919895 | Secretion of hirudin derivatives A process for obtaining hirudin derivatives from E. coli secretor mutants which entails: (1) construction of a recombinant vector on which there is located the gene coding for a hirudin derivative directly downstream of a DNA section which codes for a bac... | 07/06/1999 |
| 5851604 | Interference pigments comprising molecules fixed in a cholesteric configuration, and use thereof The invention relates to interference pigments comprising molecules fixed in a cholesteric configuration, and to the use thereof. The pigments of the invention have a plateletlike structure and a thick ness of from 1 μm to 20 μm. They contain oriented, ... | 12/22/1998 |
| 5831081 | Process for the purification of water-soluble cyclodextrin derivatives A process for the purification of water-soluble cyclodextrin derivatives utilizes a reverse osmosis (RO) using at least one hydrophilic, asymmetric solution-diffusion membrane with a nominal molecular weight cut-off of 200-800 D.... | 11/03/1998 |
| 5827449 | Liquid-crystal mixtures, process for their preparation and their use Liquid-crystalline materials having a cholesteric phase with a pitch of less than 400 nm, comprising a) liquid-crystalline organosiloxanes containing dianhydrohexitol derivatives as chiral groups, and b) chiral monomeric additives which induce the same he... | 10/27/1998 |
| 5788880 | Liquid-crystalline organosiloxanes containing chiral dianhydrohexitol derivatives The liquid-crystalline organosiloxanes which contain dianhydrohexitol derivatives as chiral groups can be used in optical elements, for decorative purposes and as polarizing colored filters, in particular notch filters.... | 08/04/1998 |
| 5741932 | Process for preparation of ajoene A process for the preparation of ajoene using cyclodextrin comprising mixing allicin, where appropriate dissolved in water and/or a water-miscible solvent, with -cyclodextrin, ଲ-cyclodextrin, γ-cyclodextrin or any desired mixture of these cy... | 04/21/1998 |
| 5728823 | Cyclodextrin derivatives having at least one nitrogen-containing heterocycle, their preparation and use Reactive cyclodextrin derivatives have at least one nitrogen-containing heterocycle. The reactive cyclodextrin derivatives include at least one nitrogen-containing heterocycle having at least one electrophilic center.... | 03/17/1998 |
| 5710268 | Process for the preparation of methylated cyclodextrin derivatives, and their use as solubilizers A process in which -, ଲ- and/or γ-cyclodextrin are reacted in a suitable base, with a suitable O-alkylating agent and, where appropriate, following neutralization of the reaction mixture, the resulting alkylated cyclodextrin derivatives are ... | 01/20/1998 |
| 5695680 | Liquid crystalline doristerol-containing organosiloxanes The liquid crystalline organosiloxanes contain per molecule at least one doristeryl group bonded at the 3ଲ position and can be used as right-handed filter materials and optical media.... | 12/09/1997 |
| 5683622 | Optical elements having color-selective and polarization-selective reflection containing LC pigments, and the production of these elements Wavelength-selective and polarization-selective optical elements contain pigments embedded in a transparent binder, in which the pigments include at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral ph... | 11/04/1997 |
| 5654422 | Acylated γ-cyclodextrins Acylated cyclodextrins of the formula I: ##STR1## where R denotes hydrogen or R1, and R1 is identical or different and denotes acetyl, propionyl, butyryl, 2-alkoxyacetyl, 2-chloroacetyl, 2-fluoroacetyl, 2-N-acetylaminoacetyl, methacryloyl or acryloyl... | 08/05/1997 |
| 5605649 | Polymerizable liquid-crystalline siloxanes Polymerizable liquid-crystalline siloxanes of a defined composition which are distinguished by low viscosity and pronounced thermochromic properties. The liquid-crystalline siloxanes of the present invention are used for the production of membranes in the... | 02/25/1997 |
| 5536826 | Process for preparing amino-functional cyclodextrin derivative A process for preparing amino-functional cyclodextrin derivatives has an amino function which is linked to the cyclodextrin (CD) via a spacer. Compositions containing CD derivatives are prepared by this process. In this process, -cyclodextrin, �... | 07/16/1996 |
| 5474917 | Modified cyclodextrin glycosyltransferases for producing γ-cyclodextrins A cyclodextrin glycosyltransferase (CGTase) which, in the conversion of starch or starch-like substrates to CD, produces γ-CD in an increased amount, and whose protein sequence, in the region between amino acid position 180 and amino acid position 240, c... | 12/12/1995 |
| 5442025 | Organosilsesquioxanes having at least one mesogenic side group Organosilsesquioxanes having at least one mesogenic side group and processes for their preparation, which comprise reacting organosilsesquioxanes having at least one Si-bonded hydrogen atom with chiral or achiral mesogenic compounds containing an aliphati... | 08/15/1995 |
| 5399290 | Liquid crystals with (polysila) alkyl wing groups A compound of the general formula M--(CH2)n --(O)m --[--D--B--]q --Y, (I) in which M represents a silicon radical having 2 to 5 silicon atoms which are linked together by bridging elements A, and the remaining valencie... | 03/21/1995 |
| 5395927 | DNA-fragment having the cyclodextrin glycosyltranferase gene The invention relates to DNA fragments having the cyclodextrin glycosyltransferase structural gene, to vectors and microorganisms for expression and to a preparation process for the same.... | 03/07/1995 |
| 5374492 | Purple membrane preparations having increased holographic diffraction efficiency Purple membrane preparations having an increased holographic diffraction efficiency. The purple membrane preparations have a diffraction efficiency of less than 5 seconds and a resolution of greater than 1,500 lines/mm. The purple membrane preparations ar... | 12/20/1994 |
| 5362315 | Pigments whose color depends on the viewing angle, their preparation and use The invention relates to pigments whose color depends on the viewing angle, their preparation and use. These pigments comprise oriented three-dimensionally crosslinked substances of liquid-crystalline structure having a chiral phase and, if desired, furth... | 11/08/1994 |
