Patents by Inventor Werner Hoess
Werner Hoess 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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Patent number: 8178624Abstract: The invention relates to a composition containing, in relation to the total weight of said composition, A) between 50.0% by weight and 99.5% by weight of at least one (meth)acrylate (co)polymer and B) between 0.5% by weight and 50.0% by weight of at least one copolymer, obtained by the polymerization of a monomer mixture consisting of i. between 70% by weight and 92% by weight of a vinyl aromatic monomer and ii. between 8% by weight and 30% by weight of acryl nitrile or methacryl nitrile or mixtures thereof iii. between 0% by weight and 22% by weight of at least one other monomer, the composition having at 50° C. a ?E of less than 0.15, ?E being defined according to the relationship (1): (1) in which ?L*: the modification of the color co-ordinates L* compared with the color co-ordinates L* at 23° C., ?a*: the modification of the color co-ordinates a* compared with the color co-ordinates a* at 23° C., ?b*: the modification of the color co-ordinates b* compared to the color co-ordinates b* at 23° C.Type: GrantFiled: March 18, 2008Date of Patent: May 15, 2012Assignee: Evonik Röhm GmbHInventors: Klaus Schultes, Werner Hoess, Nils Mehler
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Publication number: 20120107595Abstract: The present invention relates to a plastics moulding composition encompassing at least one poly(meth)acrylate A) and at least one impact-modified poly(meth)acrylate B), wherein the die swell of the plastics moulding composition is at least 15%, measured at 5 MPa and 2200 C to DIN 54811 (1984), and the melt flow rate of the poly(meth)acrylate A) is at least 10 ml per 10 minutes, measured to ISO 1133 at 2300 C with a load of 3.8 kg. The present invention also describes mouldings which encompass the plastics moulding composition described above, and processes for the production of the said mouldings.Type: ApplicationFiled: July 7, 2009Publication date: May 3, 2012Applicant: EVONIK ROESH GMBHInventors: Werner Hoess, Klaus Schultes, Guomin Liu
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Patent number: 8119734Abstract: The present invention relates to a process for preparing aqueous dispersions. The invention also relates to the formation of core-shell particles in aqueous dispersions. The core-shell particles are useful as impact-modifiers for poly(meth)acrylate moulding compositions.Type: GrantFiled: October 18, 2003Date of Patent: February 21, 2012Assignee: Evonik Roehm GmbHInventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Hartmut Schikowsky, Werner Hoess
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Publication number: 20120015141Abstract: A moulding compound comprises a copolymer (I)a), produced by polymerisation of 90-100% by weight methylmethacrylate, styrene and malic acid anhydride, and optionally 0-10% by weight additional monomers which can be copolymerised with methylmethacrylate, a (co)polymer (II)b), produced by polymerisation of 80-100% by weight methylmethacrylate and optionally 0-20% by weight additional monomers which can be copolymerised with methylmethacrylate, and has a solution viscosity in chloroform at 25° C. (ISO 1628 Part 6) of 50 to 55 ml/g, as well as c) optional conventional additives, auxiliary agents and/or fillers. The moulding compound is characterised in that the copolymer (I) has a solution viscosity in chloroform at 25° C. (ISO 1628 Part) of 55 ml/g or less. Also disclosed are mouldings produced by thermoplastic processing of the moulding compound and their uses.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: Evonik Roehm GmbHInventors: Werner Hoess, Michael Wicker, Klaus Schultes, Klaus Albrecht, Martin Mohrmann
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Publication number: 20110218291Abstract: The present invention relates to a process for preparing aqueous dispersions. The invention also relates to the formation of core-shell particles in aqueous dispersions. The core-shell particles are useful as impact-modifiers for poly(meth)acrylate moulding compositions.Type: ApplicationFiled: May 18, 2011Publication date: September 8, 2011Applicant: EVONIK ROEHM GMBHInventors: Klaus SCHULTES, Thomas Suefke, Reiner Mueller, Hartmut Schikowsky, Werner Hoess
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Patent number: 7879938Abstract: Compositions comprising an organic polymer as the matrix and inorganic particles as the filler and exhibiting in mixture a) 20 to 99.9% by wt. of an organic polymer and b) 0.1 to 80% by wt. of inorganic particles, where the sum of the constituents a) and b) amounts to 100% by wt.; and optionally c) 0 to 100 parts by weight of b) of various additives, in which case the content of the additives c) relates to the sum of a) and b), calculated as 100 parts by weight. characterized in that the composition can be obtained by incorporating particles and optionally other additives into the polymer matrix, in which case the particles to be incorporated i) are aggregates of globular primary particles; ii) the size of the primary particles is in a range of 0.5 nm to less than 100 nm; iii) the volume-weighted median value d50 of the particles is in a range of greater than 0.50 ?m to 0.Type: GrantFiled: July 10, 2007Date of Patent: February 1, 2011Assignee: Evonik Degussa GmbHInventors: Harald Häger, Franz-Erich Baumann, Wolfgang Lortz, Werner Höss, Michael Wicker, Rüdiger Carloff, Uwe Schneider
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Patent number: 7790079Abstract: (EN) The invention concerns a method for producing a thermoplastic molding material or element, said material or element containing nanometric inorganic particles. In molten state, the thermoplastic is mixed with the nanometric inorganic particles and with a solubilizing agent in a conveyor screw extruder, the pressures and temperatures being adjusted so that the plastic is in melt form and the solubilizing agent in supercritical state. The invention is characterized in that at the output of the extruder, the mixture passes through a slot with a passage less than 20 $g(m)m to penetrate into an expansion zone and the molten material, wherein are incorporated the nanometric inorganic particles, is evacuated, reduced into molding material after cooling or transferred into a molding tool to be molded. The invention also concerns the molding material and the molding elements obtained by this method, as well as the uses thereof.Type: GrantFiled: April 11, 2006Date of Patent: September 7, 2010Assignee: Evonik Rohm GmbHInventors: Werner Hoess, Klaus Albrecht, Krzysztof Sado, Harald Haeger
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Publication number: 20100174022Abstract: Composition containing, based in each case on its total weight, A) 50.0% by weight to 99.5% by weight of at least one (meth)acrylate (co)polymer and B) 0.5% by weight to 50.0% by weight of at least one copolymer obtainable by polymerisation of a monomer mixture comprising i. 70% by weight to 92% by weight of a vinylaromatic monomer and ii. 8% by weight to 30% by weight of acrylonitrile or methacrylonitrile or mixtures thereof and iii. 0% by weight to 22% by weight of at least one further monomer, the composition having a haze according to ASTM D1003 of less than 2.0% at 23° C. and a haze according to ASTM D1003 of less than 4.0% at 40° C. and the composition containing at least one (meth)acrylate (co)polymer a) having a solution viscosity in chloroform at 25° C. (ISO 1628—part 6) of greater than 55 ml/g. The mouldings obtainable from the composition are distinguished in particular by improved stress cracking resistance and are suitable in particular for coverings, finishes or films.Type: ApplicationFiled: April 9, 2008Publication date: July 8, 2010Applicant: EVONIK ROEHM GMBHInventors: Klaus Schultes, Werner Hoess, Nils Mehler
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Publication number: 20100167045Abstract: The present invention relates to a reactive mixture for coating mouldings by means of reaction injection moulding, comprising at least 40% by weight of (meth)acrylates having at least two double bonds, the reactive mixture comprising at least one photoinitiator and at least one thermal initiator.Type: ApplicationFiled: April 17, 2008Publication date: July 1, 2010Applicant: Evonik Roehm GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Hoess, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20100148401Abstract: The invention relates to a composition containing, in relation to the total weight of said composition, A) between 50.0% by weight and 99.5% by weight of at least one (meth)acrylate (co)polymer and B) between 0.5% by weight and 50.0% by weight of at least one copolymer, obtained by the polymerisation of a monomer mixture consisting of i. between 70% by weight and 92% by weight of a vinyl aromatic monomer and ii. between 8% by weight and 30% by weight of acryl nitrile or methacryl nitrile or mixtures thereof iii. between 0% by weight and 22% by weight of at least one other monomer, the composition having at 50° C. a ?E of less than 0.15, ?E being defined according to the relationship (1): (1) in which ?L*: the modification of the colour co-ordinates L* compared with the colour co-ordinates L* at 23° C., ?a*: the modification of the colour co-ordinates a* compared with the colour co-ordinates a* at 23° C., ?b*: the modification of the colour co-ordinates b* compared to the colour co-ordinates b* at 23° C.Type: ApplicationFiled: March 18, 2008Publication date: June 17, 2010Applicant: Evonik Roehm GmbHInventors: Klaus Schultes, Werner Hoess, Nils Mehler
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Core and shell particle for modifying impact resistance of a mouldable poly (meth) acrylate material
Patent number: 7695813Abstract: The present invention relates to a core-shell particle which has a core, a first shell and, where appropriate, a second shell, where: i) the core encompasses, based on its total weight, at least 75.0% by weight of (meth)acrylate repeat units; ii) the first shell has a glass transition temperature below 30° C.; iii) the second shell present where appropriate encompassed, based on its total weight, at lest 75.0% by weight of (meth)acrylate repeat units; iv) the first shell encompasses, based on its total weight, the following constituents; E) from 92.0 to 98.0% by weight of (meth)acrylate repeat units and F) from 2.0 to 8.0% by weight of styrenic repeat units of the general formula (I) ?where the radicals R1 to R6 are defined according to the Description and the percentages by weight of E) and F) give a total of 100.0% by weight, v) the radius of the core-shell particle inclusive of any second shell present, measured by the Coulter method, is in the range from above 160.0 to 240.Type: GrantFiled: October 18, 2003Date of Patent: April 13, 2010Assignee: Roehm GmbH & Co. KGInventors: Klaus Schultes, Reiner Mueller, Andreas Spiess, Klaus Albrecht, Werner Hoess -
Publication number: 20090226730Abstract: The invention describes a transparent plastics composite composed of PMMA and TPU with excellent mechanical properties.Type: ApplicationFiled: March 14, 2007Publication date: September 10, 2009Applicant: EVONIK ROEHM GMBHInventors: Werner Hoess, Michael Zietek, Michael Enders, Christian Eberle, Sven Schroebel, Klaus Albrecht, Rudolf Blass, Klaus Schultes, Arne Schmidt
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Publication number: 20080305335Abstract: The invention relates to core-shell structured silicone rubber graft polymers that comprise a core a) from a silicium-organic polymer that corresponds to the general formula (R2SiO2/2)x.(RSiO3/2)y.(SiO4/2)z, wherein x=0 to 99.5 mole %, y=0.5 to 100 mole %, z=0 to 50 mole %, wherein R is the same or different and represents alkyl or alkenyl groups having 1 to 6 C atoms, aryl groups or substituted hydrocarbon groups and at last one shell c) from an organic polymer. The silicone rubber graft copolymers are obtained by producing the organic shell c) by radical polymerization at a temperature of not more than 65° C. and adding the initiator in at least two portions to the reaction vessel, with a further addition at least 2 minutes after start of the polymerization.Type: ApplicationFiled: January 7, 2008Publication date: December 11, 2008Applicant: ROEHM GmBH & CO. KGInventors: Klaus SCHULTES, Reiner Mueller, Werner Hoess, Klaus Albrecht
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Patent number: 7456239Abstract: The invention relates to a moulding composition and to the mouldings which can be produced therefrom. Due to their good resistance in the hot water cycle test and in the hot-water/isopropanol test, the plastics mouldings have particularly good suitability for the production of sanitary components.Type: GrantFiled: July 25, 2003Date of Patent: November 25, 2008Assignee: Roehm GmbH & Co., KGInventors: Alexander Theil, Michael Zietek, Heinrich Gaul, Hans-Juergen Kress, Thomas Hasskerl, Rudolf Blass, Werner Hoess
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Publication number: 20080260814Abstract: Processes for producing moldings by injection moulding, include melting a mixture made from a (meth)acrylate copolymer and a release agent, devolatilizing the mixture, injecting the molten and devolatilized mixture into a mold cavity of an injection mold, cooling the molten mixture, and removing the resultant molding from the mold.Type: ApplicationFiled: April 21, 2008Publication date: October 23, 2008Applicant: ROEHM GmBH & CO. KGInventors: Hans-Ulrich PETEREIT, Thomas Beckert, Manfred Assmus, Werner Hoess, Wolfgang Fuchs, Hartmut Schikowsky
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Patent number: 7371795Abstract: The invention relates to a polymer mixture based on the (meth)acrylate (co)polymer components a), b), c), and/or d) according to claim 1, where a test specimen produced from the polymer mixture simultaneously has the following properties: I. a tensile modulus (ISO 527) of at least 2600 MPa, II. a Vicat softening point VSP (ISO 306-B50) of at least 109° C., III. an impact strength (ISO 179-2D, flatwise) of at least 17 kJ/m2, and IV. a melt index MVR (ISO 1133, 230° C./3.8 kg) of at least 1.5 cm3/10 min. The invention further relates to injection mouldings and to the use of the polymer mixture for producing injection-moulded parts.Type: GrantFiled: September 1, 2004Date of Patent: May 13, 2008Assignee: Roehm GmbH & Co. KGInventors: Michael Wicker, Klaus Schultes, Klaus Albrecht, Werner Hoess, Mona Rueppel, Eric Reinheimer, Wolfgang Fuchs, Tony Halblaender
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Publication number: 20070222117Abstract: A moulding compound comprises a copolymer (I)a), produced by polymerisation of 90-100% by weight methylmethacrylate, styrene and malic acid anhydride, and optionally 0-10% by weight additional monomers which can be copolymerised with methylmethacrylate, a (co)polymer (II)b), produced by polymerisation of 80-100% by weight methylmethacrylate and optionally 0-20% by weight additional monomers which can be copolymerised with methylmethacrylate, and has a solution viscosity in chloroform at 25° C. (ISO 1628 Part 6) of 50 to 55 ml/g, as well as c) optional conventional additives, auxiliary agents and/or fillers. The moulding compound is characterised in that the copolymer (I) has a solution viscosity in chloroform at 25° C. (ISO 1628 Part) of 55 ml/g or less. Also disclosed are mouldings produced by thermoplastic processing of the moulding compound and their uses.Type: ApplicationFiled: April 7, 2005Publication date: September 27, 2007Applicant: ROEHM GMBHInventors: Werner Hoess, Michael Wicker, Klaus Schultes, Klaus Albrecht, Martin Mohrmann
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Publication number: 20070112135Abstract: The invention relates to a polymer mixture based on the (meth)acrylate (co)polymer components a), b), c), and/or d) according to claim 1, where a test specimen produced from the polymer mixture simultaneously has the following properties: I. a tensile modulus (ISO 527) of at least 2600 MPa, II. a Vicat softening point VSP (ISO 306-B50) of at least 109° C., III. an impact strength (ISO 179-2D, flatwise) of at least 17 kJ/m2, and IV. a melt index MVR (ISO 1133, 230° C./3.8 kg) of at least 1.5 cm3/10 min. The invention further relates to injection mouldings and to the use of the polymer mixture for producing injection-moulded parts.Type: ApplicationFiled: September 1, 2004Publication date: May 17, 2007Applicant: ROEHM GMBH & CO. KGInventors: Michael Wicker, Klaus Schultes, Klaus Albrecht, Werner Hoess, Mona Rueppel, Eric Reinheimer, Wolfgang Fuchs, Tony Halblaender
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Publication number: 20060175735Abstract: The invention relates to an injection moulding method for the production of a complex, high optical quality light-diffusing moulded item. The moulding material used comprises a matrix made of polymethyl(meth)acrylate and spherical plastic particles whose particle size ranges from 1-24 ?m and the concentration thereof ranges from 0.05-30 wt.-% in relation to the weight of the polymethyl(meth)acrylate. The spherical particles exhibit a refractive index differential in relation to the polymethyl(meth)acrylate matrix of 0.01 0.2.Type: ApplicationFiled: March 2, 2004Publication date: August 10, 2006Inventors: Werner Hoess, Arne Schmidt, Klaus Albrecht, Klaus Schultes
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Core and shell particle for modifying impact resistance of a mouldable poly (meth) acrylate material
Publication number: 20060147714Abstract: The present invention relates to a core-shell particle which has a core, a first shell and, where appropriate, a second shell, where: i) the core encompasses, based on its total weight, at least 75.0% by weight of (meth)acrylate repeat units; ii) the first shell has a glass transition temperature below 30° C.; iii) the second shell present where appropriate encompassed, based on its total weight, at lest 75.0% by weight of (meth)acrylate repeat units; iv) the first shell encompasses, based on its total weight, the following constituents; E) from 92.0 to 98.0% by weight of (meth)acrylate repeat units and F) from 2.0 to 8.0% by weight of styrenic repeat units of the general formula (I) where the radicals R1 to R6 are defined according to the Description and the percentages by weight of E) and F) give a total of 100.0% by weight, v) the radius of the core-shell particle inclusive of any second shell present, measured by the Coulter method, is in the range from above 160.0 to 240.0 nm.Type: ApplicationFiled: October 18, 2003Publication date: July 6, 2006Applicant: ROEHM GMBH & CO. KGInventors: Klaus Schultes, Reiner Mueller, Andreas Spiess, Klaus Albrecht, Werner Hoess