Patents by Inventor Erna Roth

Erna Roth 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).

  • Publication number: 20250017823
    Abstract: The invention refers to a process for preparing a polymer-coated hard shell capsule, wherein the hard shell capsule comprises a body and a cap, wherein in the closed state the cap overlaps the body either in a pre-locked state or in a final-locked state, wherein the hard shell capsule is provided in the pre-locked state and coated with a coating solution, suspension or dispersion comprising or consisting of a) at least one (meth) acrylate copolymer a), comprising polymerized units of 5 to 25% by weight of methacrylic acid and 75 to 95% by weight of C1-to C4-alkylesters of methacrylic acid and/or C1-to C4-alkylesters of acrylic acid; b) 1 to 25, preferably 5 to 18, % by weight, based on the total weight of the at least one (meth) acrylate copolymer a), of at least one alkali or ammonium salt of a saturated aliphatic monocarboxylic acid having 10 to 30 carbon atoms; c) glycerol monostearate and/or glycerol distearate; d) at least one plasticizer; and e) optionally at least one additive; to obtain a coated h
    Type: Application
    Filed: June 29, 2022
    Publication date: January 16, 2025
    Applicant: Evonik Operations Gmb
    Inventors: Manfred Aßmus, Erna ROTH, Jessica BRUNS
  • Publication number: 20240189236
    Abstract: A composition suitable as coating or binding agent for pharmaceutically, nutraceutically or cosmetically active ingredients includes: a) at least one (meth)acrylate copolymer a), including polymerized units of 5-25% by weight of methacrylic acid and 75-95% by weight of C1-4-alkylesters of methacrylic acid and/or C1-4-alkylesters of acrylic acid, and b) 1-25% by weight, based on the total weight of at least one (meth)acrylate copolymer a), of an alkali or ammonium salt of a saturated aliphatic monocarboxylic acid having 10 to 30 carbon atoms, and c) or d) or both c) and d) c) 2-25% by weight, based on the total weight of a), of at least one compound selected from glyceryl tristearate, hydroxypropyl methylcellulose, glyceryl behenate, and glyceryl monostearate and/or d) 25-90% by weight, based on the total weight of a), of at least one selected from talc, rice hulls in powder form, magnesium stearate, corn starch, and microcrystalline cellulose.
    Type: Application
    Filed: July 7, 2022
    Publication date: June 13, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Erna ROTH, Andrea ENGEL, Peter NIEPOTH, Lisa GÜTTLER, Andreas KLOSENDORF
  • Patent number: 10113050
    Abstract: A powdery or granulated composition, containing: (a) a copolymer containing, in polymerized form, a C1- to C4-alkyl ester of acrylic or methacrylic acid and an alkyl(meth)acrylate monomer containing a tertiary amino group in an alkyl radical; (b) 0.5 to 10% by weight based on (a) of a dicarboxylic acid having 3 to 10 carbon atoms; and (c) 5 to 20% by weight based on (a) of a fatty monocarboxylic acid having 8 to 18 carbon atoms, where the composition contains at least by 30% by weight of (a), (b), and (c).
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: October 30, 2018
    Assignee: Evonik Roehm GmbH
    Inventors: Erna Roth, Ruediger Alexowsky, Hans-Ulrich Petereit, Christian Meier
  • Patent number: 9284416
    Abstract: The present invention provides a process for converting a solid (meth)acrylate copolymer into a dispersed form by preparing an aqueous dispersion comprising the components (a) a (meth)acrylate copolymer which is composed of free-radical polymerized methyl methacrylate, ethylacrylate and a salt of 2-trimethylammoniumethyl methacrylate, present in solid form as a powder or as a granulate, (b) up to 50% by weight calculated on the (meth)acrylate copolymer (a) of a dispersing agent selected from the groups of (b) i) plasticizers in combination with emulsifiers and/or (b) ii) pharmaceutically acceptable carbohydrates having 6 to 18 carbon atoms with a functional group and (c) water by mixing the components (a), (b) and (c) to give a suspension which becomes an aqueous dispersion during the conversion of the solid (meth)acrylate copolymer into the dispersed form, characterized in that, the (meth)acrylate copolymer is converted into the dispersed form by means of the presence of the dispersing agent at a temperature
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 15, 2016
    Assignee: Evonik Roehm GmbH
    Inventors: Erna Roth, Ruediger Alexowsky, Hans-Ulrich Petereit, Kathrin Nollenberger, Christian Meier
  • Patent number: 8765152
    Abstract: The invention relates to a pharmaceutical or nutraceutical formulation comprising a core, comprising an active pharmaceutical or nutraceutical ingredient, a penetration promoter and a bioavailability promoting agent, and a polymeric coating for the gastrointestinal targeted release of the active ingredient, characterized in that the bioavailability promoting agent is a pharmaceutically acceptable inhibitor of proteolytic enzymes, which increases the oral bioavailability of the active ingredient by a factor of at least five, compared to a corresponding formulation without the bioavailability promoting agent.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: July 1, 2014
    Assignee: Evonik Roehm GmbH
    Inventors: Rosario Lizio, Michael Gottschalk, Michael Damm, Norbert Windhab, Melanie Liefke, Guenter Schmitt, Erna Roth, Ruediger Alexowsky
  • Patent number: 8734849
    Abstract: The invention relates to an oral, multiparticle pharmaceutical dosage form containing pellets, the size of which ranges from 50 to 2500 ?m and which essentially consist of: a) an inner matrix layer containing an active substance which is a peptide or a protein, including the derivatives or conjugates thereof, and which is embedded in a matrix consisting of a polymer with mucoadhesive effect, and b) an outer film coating essentially consisting of an anionic polymer or copolymer, which can be optionally formulated with pharmaceutically conventional adjuvants, more particularly softening agents.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: May 27, 2014
    Assignee: Evonik Roehm GmbH
    Inventors: Rosario Lízio, Hans-Ulrich Petereit, Erna Roth, Inès Andres, Michael Damm
  • Patent number: 8431157
    Abstract: The invention relates to a partly neutralized anionic (meth)acrylate copolymer consisting of radically polymerized units containing 25-95% by weight (meth)acrylic acid C1 to C4 alkylesters and 5-75% by weight (meth)acrylate monomer with an anionic group, wherein 0.1 to 25% contained anionic groups are neutralized by a base. Said invention is characterized in that said base is embodied in the form of an cationic organic base whose molecular weight is greater than 150. A medical form containing said partly neutralized anionic (meth)acrylate copolymer and the use of said partly neutralized anionic (meth)acrylate copolymer for producing a medical form rapidly releasing an active substance having a determined pH value are also disclosed.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 30, 2013
    Assignee: Evonik Roehm GmbH
    Inventors: Rosario Lizio, Hans-Ulrich Petereit, Erna Roth, Michael Damm, Ruediger Alexowsky
  • Publication number: 20120315334
    Abstract: The invention relates to a pharmaceutical or nutraceutical formulation comprising a core, comprising an active pharmaceutical or nutraceutical ingredient, a penetration promoter and a bioavailability promoting agent, and a polymeric coating for the gastrointestinal targeted release of the active ingredient, characterized in that the bioavailability promoting agent is a pharmaceutically acceptable inhibitor of proteolytic enzymes, which increases the oral bioavailability of the active ingredient by a factor of at least five, compared to a corresponding formulation without the bioavailability promoting agent.
    Type: Application
    Filed: February 25, 2010
    Publication date: December 13, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Rosario Lizio, Michael Gottschalk, Michael Damm, Norbert Windhab, Melanie Liefke, Guenter Schmitt, Erna Roth, Ruediger Alexowsky
  • Publication number: 20120208832
    Abstract: The present invention provides a process for converting a solid (meth)acrylate copolymer into a dispersed form by preparing an aqueous dispersion comprising the components (a) a (meth)acrylate copolymer which is composed of free-radical polymerized methyl methacrylate, ethylacrylate and a salt of 2-trimethylammoniumethyl methacrylate, present in solid form as a powder or as a granulate, (b) up to 50% by weight calculated on the (meth)acrylate copolymer (a) of a dispersing agent selected from the groups of (b) i) plasticizers in combination with emulsifiers and/or (b) ii) pharmaceutically acceptable carbohydrates having 6 to 18 carbon atoms with a functional group and (c) water by mixing the components (a), (b) and (c) to give a suspension which becomes an aqueous dispersion during the conversion of the solid (meth)acrylate copolymer into the dispersed form, characterized in that, the (meth)acrylate copolymer is converted into the dispersed form by means of the presence of the dispersing agent at a temperature
    Type: Application
    Filed: November 16, 2009
    Publication date: August 16, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Erna Roth, Ruediger Alexowsky, Hans-Ulrich Petereit, Kathrin Nollenberger, Christian Meier
  • Publication number: 20120093903
    Abstract: The invention relates to a powdery or granulated composition comprising at least by 30% by weight of a mixture of (a) a copolymer composed of polymerized units of C1- to C4-alkyl esters of acrylic or methacrylic acid and of alkyl(meth)acrylate monomers with a tertiary amino group in the alkyl radical and (b) 5 to 28% by weight based on (a) of a salt of a fatty monocarboxylic acid having 10 to 18 carbon atoms, and (c) 10 to 30% by weight based on (a) of fatty monocarboxylic acid having 8 to 18 carbon atoms and/or a fatty alcohol having 8 to 18 carbon atoms.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 19, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Erna Roth, Ruediger Alexowsky, Hans-Ulrich Petereit, Christian Meier
  • Publication number: 20120093904
    Abstract: The invention relates to a coating composition for the coating or binding of pharmaceutically, nutraceutically or cosmetically active ingredients, comprising (a) an anionic polymeric material, and (b) one or more salts of saturated monocarboxylic acids having 6 to 22 carbon atoms, characterized in that the amount of the salts of the monocarboxylic acids in the composition corresponds to 3 to 50 mol percent of the amount of anionic groups in the polymeric material. The invention also relates to a process for preparing a dispersion out of the composition, as well as the use of said composition in enteric-coated solid dosage forms.
    Type: Application
    Filed: July 30, 2009
    Publication date: April 19, 2012
    Applicant: EVONIK ROEHM GMBH
    Inventors: Erna Roth, Ruediger Alexowsky, Hans-Ulrich Petereit
  • Publication number: 20120071565
    Abstract: A powdery or granulated composition, containing: (a) a copolymer containing, in polymerized form, a C1- to C4-alkyl ester of acrylic or methacrylic acid and an alkyl(meth)acrylate monomer containing a tertiary amino group in an alkyl radical; (b) 0.5 to 10% by weight based on (a) of a dicarboxylic acid having 3 to 10 carbon atoms; and (c) 5 to 20% by weight based on (a) of a fatty monocarboxylic acid having 8 to 18 carbon atoms, where the composition contains at least by 30% by weight of (a), (b), and (c).
    Type: Application
    Filed: July 30, 2009
    Publication date: March 22, 2012
    Applicant: EVONIK ROEHM GmbH
    Inventors: Erna Roth, Ruediger Alexowsky, Hans-Ulrich Petereit, Christian Meier
  • Patent number: 7871643
    Abstract: A pharmaceutical form, contains an active compound-containing core, which is covered with a coating layer of a gastric juice-resistant, intestinal juice-soluble (meth)acrylate copolymer, a separating layer situated between said core and said coating layer, the separating layer containing a film-forming water-soluble polymer, wherein the separating layer contains at least two layers: an inner layer containing a water-repellent substance, and thereon a layer comprising the film-forming water-soluble polymer.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: January 18, 2011
    Assignee: Evonik Roehm GmbH
    Inventors: Rosario Lizio, Erna Roth, Hans-Ulrich Petereit
  • Patent number: 7494690
    Abstract: The invention relates to a method for producing pharmaceuticals or parts thereof or food supplements or parts thereof, by coating substrates with a film-forming coating agent containing a pigment which is incompatible with the coating agent. The invention also relates to appliances for carrying out said method, especially a drum coater, a mushroom mixer, a fluidised bed appliance or a spray sifter comprising multiple spray devices.
    Type: Grant
    Filed: October 18, 2003
    Date of Patent: February 24, 2009
    Assignee: Roehm GmbH & Co. KG
    Inventors: Hans-Ulrich Petereit, Christian Meier, Erna Roth
  • Publication number: 20090041842
    Abstract: The invention relates to a partly neutralised anionic (meth)acrylate copolymer consisting of radically polymerised units containing 25-95% by weight (meth)acrylic acid C1 to C4 alkylesters and 5-75% by weight (meth)acrylate monomer with an anionic group, wherein 0.1 to 25% contained anionic groups are neutralised by a base. Said invention is characterised in that said base is embodied in the form of an cationic organic base whose molecular weight is greater than 150. A medical form containing said partly neutralised anionic (meth)acrylate copolymer and the use of said partly neutralised anionic (meth)acrylate copolymer for producing a medical form rapidly releasing an active substance having a determined pH value are also disclosed.
    Type: Application
    Filed: December 15, 2005
    Publication date: February 12, 2009
    Applicant: Roehm GmbH
    Inventors: Rosario Lizio, Hans-Ulrich Petereit, Erna Roth, Michael Damm, Ruediger Alexowsky
  • Publication number: 20080026051
    Abstract: A pharmaceutical form, contains an active compound-containing core, which is covered with a coating layer of a gastric juice-resistant, intestinal juice-soluble (meth)acrylate copolymer, a separating layer situated between said core and said coating layer, the separating layer containing a film-forming water-soluble polymer, wherein the separating layer contains at least two layers: an inner layer containing a water-repellent substance, and thereon a layer comprising the film-forming water-soluble polymer.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 31, 2008
    Applicant: ROEHM GMBH
    Inventors: Rosario LIZIO, Erna ROTH, Hans-Ulrich PETEREIT
  • Patent number: 7175857
    Abstract: The invention relates to a process for the production of granules or powders, suitable as coating agents and binders for oral or dermal pharmaceutical forms, for cosmetics or food supplements, consisting essentially of (a) a copolymer, consisting of free radical-polymerized C1- to C4-esters of acrylic or methacrylic acid and further (meth)acrylate monomers which contain functional tertiary amino groups, (b) 3 to 25% by weight, based on (a), of an emulsifier having an HLB of at least 14, (c) 5 to 50% by weight, based on (a), of a C12- to C18-monocarboxylic acid or of a C12- to C18-hydroxyl compound, where the components (a), (b) and (c) are simultaneously or successively blended or mixed with one another, optionally with addition of a pharmaceutical active compound and/or further customary additives, fused in a heatable mixer, mixed, the melt is cooled and comminuted to give granules or powders.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: February 13, 2007
    Assignee: Roehm GmbH & Co. KG
    Inventors: Hans-Ulrich Petereit, Christian Meier, Erna Roth, Andreas Gryczke
  • Publication number: 20070026082
    Abstract: The invention relates to an oral, multiparticle pharmaceutical dosage form containing pellets, the size of which ranges from 50 to 2500 ?m and which essentially consist of: a) an inner matrix layer containing an active substance which is a peptide or a protein, including the derivatives or conjugates thereof, and which is embedded in a matrix consisting of a polymer with mucoadhesive effect, and b) an outer film coating essentially consisting of an anionic polymer or copolymer, which can be optionally formulated with pharmaceutically conventional adjuvants, more particularly softening agents.
    Type: Application
    Filed: July 15, 2004
    Publication date: February 1, 2007
    Applicant: ROEHM GBMH & KG
    Inventors: Rosario Lizio, Hans-Ulrich Petereit, Erna Roth, Ines Andres, Michael Damm
  • Patent number: 7160558
    Abstract: The invention relates to a process for the preparation of a coating and binding agent for oral or dermal pharmaceutical forms, essentially consisting of (a) a copolymer consisting of free-radical-polymerized C1 to C4 esters of acrylic or methacrylic acid and further (meth)acrylate monomers which contain functional tertiary ammonium groups, the coplymer being present in powdered form having an average particle size of 1–40 ?m, (b) 3 to 15% by weight, based on (a), of an emulsifier having an HLB of at least 14 and (c) 5 to 50% by weight, based on (a), of a C12—to C18-monocarboxylic acid or a C12—to C18-hydroxyl compound, the components (a), (b) and (c) being blended or mixed with one another with or without addition of water and if appropriate with addition of a pharmaceutical active compound and further customary additives and the coating and binding agent being produced from the mixture by melting, casting, spreading or spraying. The invention further relates to the coating and binding agent itself.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: January 9, 2007
    Assignee: Roehm GmbH & Co. KG
    Inventors: Hans-Ulrich Petereit, Christian Meier, Erna Roth
  • Publication number: 20060078610
    Abstract: The invention relates to a method for producing pharmaceuticals or parts thereof or food supplements or parts thereof, by coating substrates with a film-forming coating agent containing a pigment which is incompatible with the coating agent. The invention also relates to appliances for carrying out said method, especially a drum coater, a mushroom mixer, a fluidised bed appliance or a spray sifter comprising multiple spray devices.
    Type: Application
    Filed: October 18, 2003
    Publication date: April 13, 2006
    Inventors: Hans-Ulrich Petereit, Christian Meier, Erna Roth