Patents by Inventor Peter Jenkner
Peter Jenkner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090030162Abstract: The present invention provides a linear, cyclic or branched polyether-functional siloxane or a mixture of polyether-functional siloxanes of the general formula (I) R[—O(3-h)/2Si(R1)(OR)h]x[—O(3-i-j)/2Si(R2)(R3)i(OR)j]y, (II) in which groups R are identical or different and R is essentially H, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, t-butyl, 2-methoxyethyl or 2-hydroxyethyl or, in the case of cyclic siloxanes, may be a silyl radical of the silyl units of the formula (I), groups R1 are identical or different and R1 is a terminally blocked polyether group of the formula (II), R4—O[—R5—O]n[(—R6)m]— (II) and groups R2 are identical or different and R2 is a linear, branched or cyclic, optionally substituted alkyl group having 1 to 18 carbon atoms or a mercaptoalkyl group or an alkenyl group having 2 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms or an aryl group having 6 to 12 carbon atoms or an aminoalkyl group or the general formula (III) H2N(CH2)d[(NH)e(CH2)f]g—(CH2)3— (III) TheType: ApplicationFiled: November 5, 2004Publication date: January 29, 2009Applicant: DEGUSSA GmbHInventors: Ekkehard Mueh, Peter Jenkner, Max Preisenberger, Burkhard Standke
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Publication number: 20090022898Abstract: The present invention provides a sol-gel composition which is dilutable with water in any proportion and is based on the reaction of at least the following components: (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >1% by weight, (iii) an organic acid as hydrolysis catalyst, and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as crosslinker, starting from a mass ratio of the solids mass of component (ii) to component (i) 0.75, a process for preparing it and its use, in particular as a sol-gel composition for corrosion control coatings, a corresponding corrosion control coat or primer coat, and articles equipped with such a coating.Type: ApplicationFiled: December 6, 2006Publication date: January 22, 2009Applicant: Evonik DEGUSSA GmbHInventors: Burkhard Standke, Christian Wassmer, Peter Jenkner
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Publication number: 20090007818Abstract: The present invention relates to composite materials composed of lignocellulosic fibers, for example wood meal, and thermoplastic polymer. The inventive composite material has improved mechanical properties. According to the invention, it is envisaged that the lignocellulosic fibers, before mixing with the thermoplastic polymer, are treated with an aqueous mixture composed of organopolysiloxanes which contain aminoalkylalkoxysilanes.Type: ApplicationFiled: March 20, 2007Publication date: January 8, 2009Applicant: EVONIK DEGUSSA GMBHInventors: Holger Militz, Carsten Mai, Peter Jenkner, Roland Edelmann, Burkhard Standke, Peter Michel, Jens-Uwe Bergmann, Steven Schmidt
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Publication number: 20080233341Abstract: The present invention relates to composite materials based on (a) at least one cellulose- or lignocellulose-containing material and (b) at least one aminoalkylsilane of the formula (I) R1R2N(CHR4)aSi(R3)r(OR)3-r (I), in which groups R1 and R2 are identical or different and in each case are H or a linear, branched or cyclic C1- to C20-alkyl group or an aryl group or an aminocarbyl group, it being possible for groups R1 and R2 to be optionally substituted, groups R4 are identical or different and R is H or methyl, a is from 1 to 10, R3 is H or a linear or branched C1- to C8-alkyl group, groups R are identical or different and R is H or a linear or branched C1- to C8-alkyl group and r is 0 or 1 or 2, or at least one cocondensate of at least one aminoalkylsilane of the general formula (I) and at least one further functional silane of the general formula (II) R7(CHR6)bSi(R5)p(OR)3-p (II), in which R7 is H or a vinyl group or an amino group or a glycidyloxy group or an acryloyloxy group or a methacryloyloxy group oType: ApplicationFiled: June 2, 2006Publication date: September 25, 2008Applicant: EVONIK DEGUSSA GmbhInventors: Peter Jenkner, Burkhard Standke, Jaroslaw Monkiewicz, Roland Edelmann, Alireza Kharazipour, Lars Kloeser
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Publication number: 20080221318Abstract: The present invention relates to a composite material based on (a) a cellulose- or lignocellulose-containing material and (b) a composite as a binder, the composite resulting from the reaction of at least the components (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >20% by weight, (iii) an organic acid as a hydrolysis catalyst and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as a crosslinking agent. The present invention furthermore relates to a process for the production of said composite materials and the use of a composite (b) as a binder for the production of wood-based materials.Type: ApplicationFiled: June 14, 2006Publication date: September 11, 2008Applicant: EVONIK DEGUSSA GmbhInventors: Roland Edelmann, Burkhard Standke, Peter Jenkner, Alireza Kharazipour, Lars Kloeser, Jaroslaw Monkiewicz
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Publication number: 20080206572Abstract: The present invention relates to a binder for composite materials comprising cellulose- or lignocellulose-containing materials, which is based on the components (i) at least one binder from the series consisting of organic resins, isocyanates, natural or near-natural binders and (ii) at least one composition based on an aminoalkylsilane. The invention furthermore relates to a composite material which is at least based on a cellulose- or lignocellulose-containing material and the abovementioned binder, a process for the production of such a composite material and the use of the binder system according to the invention for the production of wood-based materials.Type: ApplicationFiled: June 14, 2006Publication date: August 28, 2008Applicant: Evonik Degussa GmbHInventors: Roland Edelmann, Burkhard Standke, Peter Jenkner, Alireza Kharazipour, Lars Kloeser, Jaroslaw Monkiewicz
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Publication number: 20080003448Abstract: Stable, low-chloride solutions of hydrosalts of organic acids with cationic N substituted aminopolysiloxanes of the formula (I) in which groups R independently of each other are each benzyl or vinylbenzyl, groups Y are identical or different and Y is an alkoxy or hydroxyl group or 01/2, A is an organic carboxylic acid and 0?a<2, 0?b?1 c?0.125, 0.125?(a+b)?3 and x?2, which are present substantially in the form of T structural units in a lower alcohol. Preparation takes place from the corresponding hydrochloride salts of the cationic N-substituted aminopolysiloxanes by reaction with NaOH or Na alkoxide or with the sodium salt of the organic carboxylic acid A, precipitation and removal of the NaCl.Type: ApplicationFiled: May 12, 2005Publication date: January 3, 2008Applicant: Degussa AGInventors: Burkhard Standke, Peter Jenkner
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Publication number: 20070112213Abstract: The present invention relates to a process for preparing silicon compounds bearing fluoroalkyl groups by hydrosilylation of a fluoroolefin in the presence of a hydrosilylation catalyst, which comprises initially charging and heating a hydrogenchlorosilane, then metering in the fluoroolefin and reacting the reaction mixture and subsequently isolating the hydrosilylation product.Type: ApplicationFiled: October 21, 2004Publication date: May 17, 2007Inventors: Eckhard Just, Sabine Giessler, Peter Jenkner
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Patent number: 6713186Abstract: An alcoholic fluoroalkyl-functional group containing organosiloxane based composition prepared is prepared by the controlled hydrolysis of at least one fluoroalkyl-functional group containing organosilane of formula I: R1—Y—(CH2)2SiHx(R2)y(OR)3−x−y (I), in which R1 is a mono, oligo- or perfluorinated alkyl group having 1-9 C atoms or a mono-, oligo- or perfluorinated aryl group, Y is a CH2, O or S group, R2 and R are each independently a linear, branched or cyclic alkyl group having 1-8 C atoms or an aryl group and x=0, 1 or 2 and y=0, 1 or 2, where (x+y)≦2, at a temperature in the range of 0-120° C. over a period of 0.5-24 hours and with thorough mixing in an w alcoholic medium which contains water and a weak mono- or polybasic acid or a weak base or a weak mono- or polybasic acid and a weak base or an acid or basic salt, the water employed and the alkoxysilane employed being in a molar ratio of 2-500:1.Type: GrantFiled: October 11, 2000Date of Patent: March 30, 2004Assignee: Degussa AGInventors: Peter Jenkner, Albert-Johannes Frings, Michael Horn, Eckhard Just, Jaroslaw Monkiewicz, Burkhard Standke
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Patent number: 6696587Abstract: A discoloration of an aminosilane having a content of a free base is treated by adding an acid chloride to the aminosilane to obtain a mixture having a molar excess of acid chloride; neutralizing the molar excess of the acid chloride in one or more steps with a molar deficit of a base to obtain a mixture containing a salt; separating off the salt from; and irradiating the remaining aminosilane with UV-containing light.Type: GrantFiled: September 5, 2002Date of Patent: February 24, 2004Assignee: Degussa AGInventor: Peter Jenkner
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Patent number: 6534667Abstract: A composition which comprises a mixture of water-soluble, amino-functional silicon compounds which are essentially free from alkoxy groups, water, optionally a content of alcohol and optionally a content of acid, the composition comprising silicon compounds of the general formula I: NH2[CH2)2NH]x(CH2)3SiO1.5 (I) in which x is 0, 1 or 2, and of the general formula II: (SiO1.5(CH2)3[NH(CH2)2]yNH[(CH2)2NH]x(CH2)3Si)1.5 (II) in which y and z are 0, 1 or 2 and are identical or different. The compositions are obtainable by mixing corresponding aminoalkoxy silanes, hydrolyzing the mixture and removing the hydrolysis alcohol formed as a result. The invention furthermore relates to a process for the preparation of the compositions and to their use in a wide variety of applications.Type: GrantFiled: February 28, 2000Date of Patent: March 18, 2003Assignee: Degussa- AGInventors: Burkhard Standke, Roland Edelmann, Albert-Johannes Frings, Michael Horn, Peter Jenkner, Ralf Laven, Helmut Mack, Jaroslaw Monkiewicz, Günter Switalla
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Publication number: 20030042127Abstract: A discoloration of an aminosilane having a content of a free base is treated by adding an acid chloride to the aminosilane to obtain a mixture having a molar excess of acid chloride; neutralizing the molar excess of the acid chloride in one or more steps with a molar deficit of a base to obtain a mixture containing a salt; separating off the salt from; and irradiating the remaining aminosilane with UV-containing light.Type: ApplicationFiled: September 5, 2002Publication date: March 6, 2003Applicant: DEGUSSA AGInventor: Peter Jenkner
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Patent number: 6528585Abstract: The invention relates to a process for preparing crosslinkable polymers containing silane groups having at least one hydrolyzable radical by free-radical-initiated grafting of the base polymers with an olefinically unsaturated silane having at least one hydrolyzable radical, wherein the grafting is carried out in the presence of (a) an alkylsilane of the formula I, R1(SiR2nX3−n)m, (I) where R1 is a monovalent hydrocarbon radical having from 1 to 33 carbon atoms or a divalent hydrocarbon radical having from 4 to 24 carbon atoms, R2 is a hydrocarbon radical having from 1 to 10 carbon atoms, X are identical or different hydrolyzable radicals, n is 0, 1 or 2 and m is 1 or 2 and/or (b) a fluoroalkylsilane of the formula R3xSiR4yXz, (II) where R3 is a fluoroalkyl radical, R4 is an alkyl radical and X is a hydrolyzable radical, x is an integer from 1 to 3, y is 0, 1 or 2 and z is an integer from 1 to 3, with the proviso that the sum x+y+z&equaType: GrantFiled: July 19, 2001Date of Patent: March 4, 2003Assignee: Degussa AGInventors: Burkhard Standke, Jaroslaw Monkiewicz, Albert-Johannes Frings, Ralf Laven, Roland Edelmann, Peter Jenkner, Helmut Mack, Michael Horn
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Patent number: 6500883Abstract: Fillers surface-modified by treatment with an organosilane- and/or organosiloxane-containing agent for preparing filled polyamide compositions.Type: GrantFiled: September 12, 2000Date of Patent: December 31, 2002Assignee: Degussa AGInventors: Helmut Mack, Peter Jenkner, Roland Edelmann, Dieter Barfurth, Alber-Johannes Frings, Burkhard Standke, Jaroslaw Monkiewicz, Michael Horn, Thomas Schlosser
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Publication number: 20020192385Abstract: Polymeric substrate are coated by a process comprising pretreating the polymeric substrate by at least one physical method selected from the group consisting of corona discharge, flaming, glow discharge, irradiation with electromagnetic waves, and a plasma pretreatment, then coating the pretreated polymeric substrate with a composition comprising a fluoroalkyl-containing silicon compound. The resulting coated is very thin, highly hydrophobic and oleophobic. The coatings prepared by the process of the present invention are stable in boiling water and are resistant to abrasion.Type: ApplicationFiled: January 4, 2002Publication date: December 19, 2002Applicant: DEGUSSA AGInventors: Peter Jenkner, Eckhard Just, Markus Oles, Bernhard Schleich, Peter Hommes
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Patent number: 6491838Abstract: An organosiloxane which has at least one triamino group of formula I: [NHx(CH2)aNHy(CH2)bNHz]— (I) which is bonded to at least one silicon atom via at least one N-bonded alkylene group having 1 to 4 C atoms, a and b are identical or different and are each an integer ranging from 1 to 6, x is 0 or 1 or 2, y is 0 or 1, z is 0 or 1 or 2, with the proviso that (x+y+z)≦4, and at least one Si—C-bonded fluoroalkyl group of formula II: F3C(CF2)r(CH2)s— (II) wherein r is 0 or an integer ranging from 1 to 18 and s is 0 or 2.Type: GrantFiled: November 15, 2000Date of Patent: December 10, 2002Assignee: Degussa AGInventors: Burkhard Standke, Michael Horn, Peter Jenkner, Jaroslaw Monkiewicz
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Publication number: 20020127415Abstract: A process for modifying the functionality of organofunctional substrate surfaces by first reacting the organofunctional group of a silicon compound A with the surface of a substrate, where the silicon compound A bears at least one organofunctional group and, as other groups, bears at least one chloro, alkoxy, carboxy or hydroxyl group, then applying to the pretreated substrate an organofunctional silicon compound B, where the silicon compounds A and B are identical or different and the silicon compound B bears at least one chloro, alkoxy, carboxy or hydroxyl group. The process produces surface-modified substrates for other applications.Type: ApplicationFiled: January 4, 2002Publication date: September 12, 2002Applicant: DEGUSSA AGInventors: Burkhard Standke, Jaroslaw Monkiewicz, Albert-Johannes Frings, Ralf Laven, Roland Edelmann, Peter Jenkner, Helmut Mack, Michael Horn
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Patent number: 6426150Abstract: The present invention relates to surface-modified insulators obtained by coating an insulator body with a preparation containing at least one organofluorine-functional silane and/or siloxane, at least one mineral acid and at least one metal salt of aluminum(III), tin(II), tin(IV), iron(III) or titanium(III) as catalyst, to a process for their preparation and to the use of the preparation for coating insulators.Type: GrantFiled: February 3, 2000Date of Patent: July 30, 2002Assignee: Degussa AGInventors: Peter Jenkner, Eckhard Just, Johannes Liebermann
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Patent number: 6403228Abstract: The invention relates to the use of (1) a liquid functional organylorganyloxysilane bound to a carrier, or of a liquid (co)condensate derived from a functional organylorganyloxysilane and bound to a carrier for preparing cable compounds which comprise (2) a thermoplastic base polymer having polar functional groups and (3) a reinforcing or extending mineral filler.Type: GrantFiled: June 26, 2000Date of Patent: June 11, 2002Assignee: Degussa AGInventors: Helmut Mack, Ralf Laven, Peter Jenkner, Roland Edelmann, Dieter Barfurth, Albert-Johannes Frings, Burkhard Standke, Jaroslaw Monkiewicz, Michael Horn
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Patent number: 6403175Abstract: A process for producing surface-sealed hollow glass containers, the hollow glass containers are, in the production process in the region of the exit from the annealing lehr which is located downstream of a machine for producing hollow glass containers, coated by means of a water-based cold end coating composition comprising at least the following components: I. a trialkoxysilane, a dialkoxysilane and/or a tetralkoxysilane or their hydrolysis and/or condensation products and also II. a water-soluble or water-dispersible mixture of a polyol and a crosslinker, wherein the applied layer of the cold end coating composition is subsequently subjected to a crosslinking step. The hollow glass containers produced in this way have an improved strength.Type: GrantFiled: September 1, 1999Date of Patent: June 11, 2002Assignee: Degussa AGInventors: Peter Speier, Peter Jenkner, Rainer Lomölder, Gerd Buchmayer, Alois Fickler, Elmar Stäbler