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Burkhard Kohler Patents
Inventor:
Kohler; Burkhard
Address:
Leverkusen, DE
No. of patents:
91
Patents:


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Patent Number Title Of Patent Date Issued
7371463 Sol-gel coating from water-soluble oxalamides May 13, 2008
Coating compositions for producing sol-gel coatings that include: a) one or more alkoxysilyl-containing oxalamides of the general formula (II), ##STR00001## where R'' is hydrogen or an organic C.sub.1-C.sub.10 radical, R' radicals are organic, optionally oxygen-attached C.sub.1-C.
7344895 Production and use of in situ-modified nanoparticles March 18, 2008
A process for synthesizing nanoparticles, in particular metal salt nanoparticles. To the synthesis mixture is added a modifying reagent which binds, by means of a first functional group, to the nanoparticle surface and which carries a second functional group for binding to molecules
7285331 Ultraphobic surface October 23, 2007
The invention relates to a structured surface with ultraphobic properties. Said surface as a surface topography in which the value of the integral of a function S: S(log f)=a(f)f, which gives a relationship between the spatial frequencies f of the individual Fourier components and their
7253252 Water-soluble aspartate August 7, 2007
The present invention relates to new water-soluble polyaspartic esters and also to their use in aqueous coating compositions.
7214302 Method and device for moving and placing liquid drops in a controlled manner May 8, 2007
The invention relates to a method and a device which serves for moving and dosing amounts of liquid on a microscopic scale with a volume of especially 10.sup.-12 to 10.sup.-6 liters by means of an inhomogeneous electric field using a support having an ultraphobic surface.
7134466 Crosslinked rubber particles modified by amino(meth)acrylate groups November 14, 2006
The present invention relates to crosslinked rubber particles modified by secondary amino-(meth)-acrylate groups, a process for their production, their use for the production of rubber vulcanizates or rubber molded bodies of all kinds and also the rubber vulcanizates or rubber molded
7101945 Phosphorus-containing polymers for optical signal transducers September 5, 2006
The invention relates to a phosphorus-containing polymer for coating dielectric materials, to processes for its preparation and to its use, as well as to an optical signal transducer having a coating of the polymer and to its use.
6962953 Aqueous secondary dispersions November 8, 2005
The present invention relates to heat and storage stable vinyl polymer polyol secondary dispersions containing A) at least one vinyl polymer resin having functional groups selected from hydroxyl, carboxyl and/or sulfonic acid groups and dispersed in a water/solvent mixture in the pres
6689889 Chromatographic separation of enantiomers of lactones February 10, 2004
The present invention relates to the use of optically active polymers of N-acryloyl-phenylalanine neomenthylamide as such, in crosslinked form and/or in carrier-bonded form as stationary phases for the chromatographic separation of enantiomers of lactones.
6664342 Polycarbonates containing aspartic acid-ester functional silicones December 16, 2003
Aspartate-functional silicone and the process for its preparation is disclosed. Also disclosed are aromatic polycarbonate that contains the inventive aspartate-functional silicone, a process for its preparation and its use in making molded articles.
6590058 Oligomeric bischlorocarbonic acid esters obtained from selected cycloaliphatic bisphenols and ot July 8, 2003
This invention relates to oligomeric bischloroformic acid esters which are obtainable, in a two-phase reaction, from selected cycloaliphatic bisphenols and other bisphenols by introducing phosgene.
6485836 Composite material comprising polyurethane and at least one thermoplastic plastics material, a p November 26, 2002
A composite material is described which comprises at least two layers of different plastics materials which are directly bonded to each other, wherein A) one layer of the composite comprises polyurethane, and B) a layer of the composite which is directly bonded to layer A) comprises a
6479106 Coated substrates prepared from special polyols and oxalic acid November 12, 2002
The present invention relates to coated substrates obtained by stoving mixtures containing A) 1 part by weight of ester group-free polyols having an OH content of 1 to 10%, B) 0.05 to 1 part by weight of oxalic acid and C) 0.2 to 5 parts by weight of organic solvents,at temperatures
6472479 Sulfonated bead polymers prepared from styrene, vinylpyridines, and crosslinkers October 29, 2002
The invention relates to sulfonated bead polymers prepared from styrene, vinylpyridines, further monomers, and crosslinkers, to a process for preparing them, and to their use as cation exchangers.
6297346 Mixtures of cyclic oligocarbonates, their production and use October 2, 2001
The present invention relates to mixtures of cyclic oligocarbonates, to their production by way of mixtures of bischloroformates, and to their use for the production of linear polycarbonates and for the modification of other linear polycarbonates.
6274736 Chromatographic enantiomer separation of lactones August 14, 2001
The present invention relates to the use of optically active polymers of N-acryloyl-phenylalanine neomenthylamide as such, in crosslinked form and/or in carrier-bonded form as stationary phases for the chromatographic separation of enantiomers of lactones.
6156871 Mixtures of cyclic oligocarbonates, their production and use December 5, 2000
The present invention relates to mixtures of cyclic oligocarbonates, to their production by way of mixtures of bischloroformates, and to their use for the production of linear polycarbonates and for the modification of other linear polycarbonates.
6114463 Copolymers based on vinyl units and their use in electroluminescent devices September 5, 2000
The present invention relates to (co)polymers which contain at least one repeating structural chain unit of the general formula (1) and/or (2) and optionally repeating units of the general formula (3) ##STR1## in which L.sup.1 and L.sup.2, independently of each other, represent a
6075106 (Co)polymers based on vinyl units and use thereof in electroluminescent devices June 13, 2000
The present invention relates to (co)polymers which contain at least one repeat chain unit selected from the group comprising the general formula (1) and (2) and optionally (3), ##STR1## in which L.sup.1 and L.sup.2 mutually independently mean a photoluminescent residue.
5929197 Acylsuccinic acid polyesters, a process for their preparation and their use in thermosetting pla July 27, 1999
The present invention relates to a process for preparing acylsuccinic acid polyesters by reactingA) a polyester, which is the reaction product oi) maleic acid, maleic acid esters, maleic anhydride, fumaric acid and/or fumaric acid esters and optionally other diacids, monoacids or their d
5891975 (Co)polymers based on vinyl units and use thereof in electroluminescent devices April 6, 1999
The present invention relates to (co)polymers which contain at least one repeat chain unit of the general formula (1) or (2) and optionally repeat units of the general formula (3), ##STR1## in which L.sup.1 and L.sup.2 mutually independently mean a photoluminescent residue, to a
5868938 Chiral stationary phases for chromatographic separation of optical isomers February 9, 1999
The invention relates to chiral polymers which are bonded to a support and have improved properties, a process for the preparation of these materials and their use as chiral stationary phases in the chromatograhic separation of optical isomers, in particular of racemates into their enant
5852098 short glass-fibre reinorced polycarbonates December 22, 1998
The present invention provides mixtures containing polycarbonates, short glass fibers and polyether silicones as well as a method for preparing these mixtures.
5849845 Blends of aromatic polycarbonates and epoxy-functional terpolymers December 15, 1998
Blends ofA) 80 to 99 wt. % of high molecular weight, thermoplastic, aromatic polycarbonate with a molecular weight M.sub.w (weight average) of at least 10,000, which contains bifunctional carbonate structural units of the formula (I), ##STR1## in which R.sup.1 and R.sup.2 mutuall
5824741 Impact-resistant thermoplastic moulding compositions October 20, 1998
This invention relates to impact-resistant thermoplastic moulding compositions based on a graft rubber, a thermoplastic resin and a small quantity of a free acid-functional nitrile rubber.
5786440 Mixtures of cyclic oligocarbonates and their manufacture July 28, 1998
A process for the manufacture of cyclic oligocarbonate is disclosed. The process comprises a reaction of a bis-chlorocarbonic acid ester with isatinbisphenol or with a bis-chlorocarbonic ester thereof. The mixture of cyclic oligocarbonates thus prepared is useful as a precursor in the
5750602 Flameproofed polycarbonate/ABS blends resistant to stress cracking May 12, 1998
The invention relates to flameproofed polycarbonate/ABS blends which are resistant to stress cracking, wherein the polycarbonates are wholly or partly modified by halobutyl rubber blocks.
5747589 Process for the production of polycarbonate-polyisobutylene block cocondensates May 5, 1998
The present invention provides a process for the production of polycarbonate-polyisobutylene block cocondensates from thermoplastic aromatic polycarbonates and reactive polyisobutylenes in the melt, as well as mixtures of the block cocondensates with non-reactive polyisobutylenes.
5747586 High-impact molding compounds based on polyisobutylene-containing polycarbonate May 5, 1998
The invention relates to thermoplastic molding compounds containing polyisobutylene-modified polycarbonate, graft polymer and optionally copolymer, aromatic polycarbonate, polyolefins.
5717027 Block copolycarbonates with polyisobutylene-.alpha.-haloketocarboxylic acid blocks February 10, 1998
This invention relates to block copolycarbonates made from polycarbonate blocks and polyisobutylene-.alpha.-haloketocarboxylic acid blocks (abbreviation: PIB blocks), wherein the PIB blocks may, for example, be obtained by ozonolysis of halogenated butyl rubber, and to blends of these
5698622 Stabilisation of ABS graft polymers using dithiodipropionic acid December 16, 1997
The invention relates to mixtures of ABS graft polymers, sterically hindered phenols and dithiodipropionic acid.
5693722 Method for modifying the backbone of polymeric resins December 2, 1997
A process is disclosed whereby a polymeric resin (containing ester and/or carbonate bonds) is readily converted into a resin having a modified molecular structure. Accordingly, a polycyclic carbonate (a monomer or oligomer) is transesterified with the polymer resin in the melt, prefe
5656684 Silanes containing oxalamide functional groups and their use as plastics additives August 12, 1997
The present invention provides special silanes, their preparation and their use as plastics additives for improving the mechanical and flameproofing properties of the plastics.
5654383 Polyarylene sulfides reduced in viscosity by aftertreatment with disulfides August 5, 1997
The invention relates to polyarylene sulfides (PAS), preferably polyphenylene sulfide (PPS), reduced in viscosity by aftertreatment of the PAS formed in the production process with disulfides in the melt.
5650456 Coumarin derivatives, a method of preparing them and their use as intermediates July 22, 1997
This invention relates to coumarin derivatives of formula (I) ##STR1## where Z represents OR.sup.3 or NR.sup.4 R.sup.5,to their preparation, and to their use for the production of polymers with luminophors on their side chains.
5635560 Mixtures of polycarbonate, phenolically hydroxyfunctional branched dimeric fatty acid polyesters June 3, 1997
The invention relates to mixtures of polycarbonate, phenolically hydroxyfunctional branched dimeric fatty acid polyesters and optionally graft polymer, which are distinguished by a good low-temperature strength and stress cracking resistance and good mould release properties.
5633339 Use of tertiary aliphatic monocarboxylic acids as chain terminators for the preparation of polyc May 27, 1997
The present invention relates to the use of special monocarboxylic acids as chain terminators for the preparation of polycarbonates and of polyester carbonates, and to the polycarbonates and polyester carbonates obtainable according to the invention.
5618890 Allylphenol-terminated polycarbonates grafted with maleic anhydride, their use for the productio April 8, 1997
The invention relates to polycarbonates (PC) terminated by allylphenols, preferably eugenol, and subsequently grafted with maleic anhydride (MA) in the melt, to their use as blending partners for polyamides (PA) and to the polycarbonate/polyamide blends.
5599862 Graft polymers with improved surface gloss February 4, 1997
The invention relates to a mixture of(A) ABS graft polymer and(B) 0.05 to 2% by weight (based on the mixture) of a polyether- or polyester-grafted siliconewith improved surface gloss.
5583174 Mixtures of specific dihydroxydiphenylcycloalkane polycarbonates and mineral oil December 10, 1996
Mixtures ofA) 75 to 99.5 wt. % of a high molecular weight, thermoplastic, aromatic polycarbonate with a molecular weight M.sub.w (weight average) of at least 10,000 which contains bifunctional carbonate structural units of the formula (I), ##STR1## in which R.sup.1 and R.sup.2, i
5576390 Polyisobutylenes having aspartic acid ester terminal groups November 19, 1996
The present invention provides telechelic polyisobutylenes having aspartic acid ester terminal groups, the production thereof and the use thereof as modifiers preferably for thermoplastic aromatic polycarbonates, and the mixing thereof with reaction-less polyisobutylenes.
5554716 Use of hydrogenated abietic acid as a chain terminator for the production of polycarbonates and September 10, 1996
The invention relates to the use of hydrogenated abietic acid as a chain terminator for the production of polycarbonates and polyester carbonates and to the polycarbonates and polyester carbonates obtainable in accordance with the invention.
5548011 Blends of polycarbonates, dimeric fatty acid polyesters and PIB rubbers, silicones or mineral oi August 20, 1996
The invention relates to blends of polycarbonates, branched, phenolic hydroxy functional dimeric fatty acid polyesters and at least one component selected from polyisobutylene, silicones and mineral oils.
5545692 Polyesters of dimer fatty acid and dimer fatty diol and their use for the production of polyeste August 13, 1996
The invention relates to new polyesters of dimer fatty acid and dimer fatty diol each containing 36 or 44 carbon atoms, to their production, to their use for the production of polyester carbonates and to the new polyester carbonates.
5525674 Polycarbonates with aliphatic ketocarboxyl end groups, mixed with known aromatic polycarbonates, June 11, 1996
The present invention provides polycarbonates with aliphatic ketocarboxyl end groups, optionally mixed with known aromatic polycarbonates, and a process for their preparation, the chain terminators used being those of formula (I): ##STR1## The present invention also provides mixt
5484857 Single-stage process for the preparation of polyisobutylene carboxylic acids January 16, 1996
The present invention relates to a single-stage process for the preparation of polyisobutylene carboxylic acids from isobutylene-diene copolymers, which are optionally crosslinked or branched by means of a diolefine in the known manner, by reaction with ozone in the presence of a solvent
5407966 Recyclable thermoplastic foam with a high glass transition temperature II April 18, 1995
The present invention relates to thermoplastic foams in which .beta.-ketocarboxylic acids, .beta.-ketocarboxylic acid esters or tert.-butyl esters of organic acids are used as the foaming agents.
5391641 Segmented N-alkyl polyurethane amides February 21, 1995
The invention relates to segmented N-alkyl polyurethane amides having an average molecular weight of 5,000 to 250,000, to a process for their production and to their use for the production of materials which may be used in the medical field.
5378749 Blends of PAS, nitroarylketo compounds and maleic imides January 3, 1995
The invention relates to polyarylene sulfides (PAS), more particularly polyphenylene sulfides (PPS), showing reduced flash formation.
5357037 Phosphorous-containing duromers of oligophosphites October 18, 1994
This invention relates to new phosphorus-containing duromers of oligophosphites and epoxides or bisacrylates or unsaturated polyesters.
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