Patents by Inventor Wolfgang Wehner

Wolfgang Wehner 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).

  • Patent number: 7943176
    Abstract: By suitable retardation oral pharmaceutical compositions containing propiverine or one or several pharmaceutically acceptable salts thereof in an amount of 4 mg to 60 mg propiverine and having a prolonged release of the active agent are produced. Preferably a blend of active agent and optionally one or more acidic substances having a pKa value of less than 6.65 are provided with a retarding coating or are embedded in a matrix which is then optionally coated with further retarding layers.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: May 17, 2011
    Assignee: Apogepha Arzneimittel GmbH
    Inventors: Thomas Gramatte, Peter Gruber, Michael Heschel, Dirk Pamperin, Jan Ploen, Steffen Scheithauser, Wolfgang Wehner, Peter Guldner
  • Patent number: 7919066
    Abstract: A process is provided for preparing calcium carbonate hydroxodialuminates which have a hexagonal platelet-shaped crystal habit and are of the formula (A): CamAl2(OH)6+2(m?1)An*nH2O??(A) where m=3.5 to 4.5 and An=carbonate which may be partly replaced by perchlorate and/or trifluoromethanesulfonate (triflate) and n=0 to 6, comprising the steps of reacting calcium oxide or calcium hydroxide with optionally activated aluminum oxohydroxide or aluminum hydroxide and simultaneously or subsequently with a carbonate source consisting of carbon dioxide or alkali metal (bi)carbonate and optionally further reacting the product obtained in step (a) with perchloric acid and/or trifluoromethanesulfonic acid or optionally calcining the product obtained in step (a) at 200° C. to 900° C. and subsequently exchanging ions in the presence of a perchlorate and/or triflate salt, optionally in the presence of alkali metal (bi)carbonate, in water.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: April 5, 2011
    Assignee: Nabaltec AG
    Inventors: Reiner Sauerwein, Alfred Reimer, Ludwig Edenharter, Manfred Sorgalla, Wolfgang Wehner
  • Patent number: 7741390
    Abstract: Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A) The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: June 22, 2010
    Assignee: Artemis Research GmbH & Co. KG
    Inventors: Wolfgang Wehner, Trupti Dave, Thomas Wannemacher
  • Patent number: 7671118
    Abstract: A stabilizer system for stabilizing halogen-containing polymers comprising a perchlorate salt and at least one indole compound, a composition comprising such a stabilizer system, process for stabilizing a chlorine-containing polymer using such a stabilizer system, and an article manufacture comprising PVC stabilized by such a stabilizer system.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: March 2, 2010
    Assignee: Chemtura Vinyl Additives, GmbH
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20090306257
    Abstract: The stabilizer system for chlorine-containing polymers, in particular PVC, comprises at least one linear or cyclic acylureide (A-1) and/or a polyaminocrotonic ester (A-2) and a polyepoxypropyl alcohol ether (B-1) and/or a cyanamide (derivative) (B-2). The stabilizer system may additionally comprise a sterically hindered amine (D) or a tertiary ethanolamine (E) and/or a perchlorate (C-1), perfluoroalkanesulfonate (C-2) and/or sulfate ester (C-3) salt. A typical example is a combination of N,N?-dimethyl-6-iminobarbituric acid as component (A-1), trisepoxypropylglycerol as component (B-1) or dicyandiamide as component (B-2). This combination additionally comprises sodium or potassium perchlorate as component (C-1). Further variants of the invention are the preparation of the stabilizer system, polymer compositions comprising the stabilizer system and utility articles thereof, such as window profiles or wire sheaths.
    Type: Application
    Filed: July 26, 2005
    Publication date: December 10, 2009
    Inventors: Wolfgang Wehner, Thomas Wannemacher, Trupti Dave
  • Publication number: 20090292052
    Abstract: A process is provided for preparing calcium carbonate hydroxodialuminates which have a hexagonal platelet-shaped crystal habit and are of the formula (A): CamAl2(OH)6+2(m?1)An*nH2O ??(A) where m=3.5 to 4.5 and An=carbonate which may be partly replaced by perchlorate and/or trifluoromethanesulfonate (triflate) and n=0 to 6, comprising the steps of reacting calcium oxide or calcium hydroxide with optionally activated aluminum oxohydroxide or aluminum hydroxide and simultaneously or subsequently with a carbonate source consisting of carbon dioxide or alkali metal (bi)carbonate and optionally further reacting the product obtained in step (a) with perchloric acid and/or trifluoromethanesulfonic acid or optionally calcining the product obtained in step (a) at 200° C. to 900° C. and subsequently exchanging ions in the presence of a perchlorate and/or triflate salt, optionally in the presence of alkali metal (bi)carbonate, in water.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 26, 2009
    Inventors: Reiner SAUERWEIN, Alfred REIMER, Ludwig EDENHARTER, Manfred SORGALLA, Wolfgang WEHNER
  • Publication number: 20090286915
    Abstract: Neutral calcium-aluminum double salts of the formula (A): Ca2m(Zn2n)Al2(OH)6+2(2m+2n?1)An.oH2O??(A), where the following apply for m and n:m=0.5 to 3 and 0.5m?n>0; An=CO3, where this may be replaced completely or partially by at least one of the following groups selected from OH, ClO4 and H3CS(?O)2O (triflate) and o=0 to 3. The present invention further relates to their preparation, use in compositions and stabilizer systems and uses thereof.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 19, 2009
    Inventors: Reiner SAUERWEIN, Alfred Reimer, Ludwig Edenharter, Manfred Sorgalla, Wolfgang Wehner
  • Publication number: 20090170988
    Abstract: A stabilizer system for stabilizing halogen-containing polymers against thermal degradation, the stabilizer system comprising: (a) at least one perfluoroalkanesulphonate salt; and (b) at least one alkanolamine wherein the at least one alkanolamine has the general formula (I)
    Type: Application
    Filed: March 3, 2009
    Publication date: July 2, 2009
    Applicant: Crompton Vinyl AdditivesGmbH
    Inventors: Wolfgang WEHNER, Hans-Helmut Friedrich
  • Publication number: 20090131564
    Abstract: Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A) The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.
    Type: Application
    Filed: December 26, 2007
    Publication date: May 21, 2009
    Inventors: Wolfgang Wehner, Trupti Dave, Thomas Wannemacher
  • Publication number: 20090105387
    Abstract: Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A) The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.
    Type: Application
    Filed: August 25, 2008
    Publication date: April 23, 2009
    Inventors: Wolfgang Wehner, Trupti Dave, Thomas Wannemacher
  • Publication number: 20080317848
    Abstract: By suitable retardation oral pharmaceutical compositions containing propiverine or one or several pharmaceutically acceptable salts thereof in an amount of 4 mg to 60 mg propiverine and having a prolonged release of the active agent are produced. Preferably a blend of active agent and optionally one or more acidic substances having a pKa value of less than 6.65 are provided with a retarding coating or are embedded in a matrix which is then optionally coated with further retarding layers.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 25, 2008
    Applicant: APOGEPHA ARZNEIMITTEL GMBH
    Inventors: Thomas Gramatte, Peter Gruber, Michael Heschel, Dirk Pamperin, Jan Ploen, Steffen Scheithauer, Wolfgang Wehner, Peter Guldner
  • Patent number: 7393887
    Abstract: A composition and process is disclosed for the stabilization of halogen-containing polymers. In particular, chlorine-containing polymers such as poly vinyl chloride (PVC) are stabilized by incorporating of a stabilizer mixture having at least a perchlorate salt and an alkanolamine.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: July 1, 2008
    Assignee: Crompton Corporation
    Inventors: Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner, Thomas Hopfmann
  • Patent number: 7358286
    Abstract: Disclosed are stabilizer mixtures comprising at least a) one alkanolamine or one reaction product of a monofunctional or polyfunctional epoxide and ammonia or a monofunctional or polyfunctional dialkyl(aryl)amine or monoalkyl(aryl)amine, and b) one uracil or one initial product and an optional perchlorate salt.
    Type: Grant
    Filed: December 20, 2003
    Date of Patent: April 15, 2008
    Assignee: Chemtura Vinyl Additives GmbH
    Inventors: Thomas Hopfmann, Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner
  • Publication number: 20060270765
    Abstract: The invention relates to stabilising systems for stabilising chlorinated polymers. The inventive stabilising systems contain a) at least one type of perfluoroalkane sulfonate salt and b) at least one or several indoles of general formula (I) and/or urea of general formula (II) and/or alcanolamines of general formula (III) and/or amonouracils.
    Type: Application
    Filed: April 7, 2004
    Publication date: November 30, 2006
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20060235124
    Abstract: The invention relates to a mixture of stabilisers for the stabilisation of chlorinated polymers, comprising at least a) a sulphate ester salt and/or a sulphonate salt of formula (I): [R(O)aSO3]1M and b) an alkanolamine of formula (II), where M=alkali, earth alkali, lanthanide (Cer) or aluminium cation, t=metal cation valence of 1, 2 or 3; s=0 or 1, R=C1-C22 a phenyl, C7-C10 phenylalkyl, C7 -C24 alkylphenyl, x=1, 2 or 3: y=1, 2, 3, 4, 5 or 6; n=1-10. R1, R2 independently=H.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 19, 2006
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich, Karl-Josef Kuhn, Thomas Hopfmann
  • Publication number: 20060192179
    Abstract: A stabilizer system for stabilizing halogen-containing polymers comprising a perchlorate salt and at least one indole compound, a composition comprising such a stabilizer system, process for stabilizing a chlorine-containing polymer using such a stabilizer system, and an article manufacture comprising PVC stabilized by such a stabilizer system.
    Type: Application
    Filed: March 28, 2006
    Publication date: August 31, 2006
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20060183830
    Abstract: A composition and process is disclosed for the stabilization of halogen-containing polymers. In particular, chlorine-containing polymers such as poly vinyl chloride (PVC) are stabilized by incorporating of a stabilizer mixture having at least a perchlorate salt and an alkanolamine.
    Type: Application
    Filed: April 3, 2006
    Publication date: August 17, 2006
    Inventors: Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner, Thomas Hopfmann
  • Patent number: 7077981
    Abstract: The invention relates to stabilizer systems, containing at least: a) a perchlorate salt; b) at least one or more compounds from the group consisting of carbamides, indole derivatives and enamines of formula (I), wherein n=1 or 2 and X=O or NR1; n=3–6 and X=O; R1=H, C1–C4-alkyl, C2–C6-alkenyl, C6–C10-aryl, C7–C18-alkaryl or C7–C18-aralkyl; R2 (if n=1)=C1–C22-alkyl, C2–C22-alkenyl or aryl, preferably phenyl, optionally substituted with up to 3 hydroxy, C1–C4-alkoxy or C1–C9-alkyl; or R2 (if n=2–6)=linear or branched C1-22-alkylene, optionally interrupted by one or more O or S atoms, wherein R2 (if n=3) can also be a C2–C3-alkyl trisubstituted isocyanurate; if X=NH R2 can also be H. Said stabilizer systems are suitable for stabilizing halogen-containing polymers, more particularly PVC.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: July 18, 2006
    Assignee: Crompton Vinyl Additives GmbH
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20060052497
    Abstract: Disclosed are stabilizer mixtures comprising at least a) one alkanolamine or one reaction product of a monofunctional or polyfunctional epoxide and ammonia or a monofunctional or polyfunctional dialkyl(aryl)amine or monoalkyl(aryl)amine, and b) one uracil or one initial product and an optional perchlorate salt
    Type: Application
    Filed: December 20, 2003
    Publication date: March 9, 2006
    Applicant: Crompton Vinyl Additives GmbH
    Inventors: Thomas Hopfmann, Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner
  • Publication number: 20040258749
    Abstract: By suitable retardation oral pharmaceutical compositions containing propiverine or one or several pharmaceutically acceptable salts thereof in an amount of 4 mg to 60 mg propiverine and having a prolonged release of the active agent are produced. Preferably a blend of active agent and optionally one or more acidic substances having a pKa value of less than 6.65 are provided with a retarding coating or are embedded in a matrix which is then optionally coated with further retarding layers.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 23, 2004
    Inventors: Peter Guldner, Michael Heschel, Dirk Pamperin, Jan Ploen, Steffen Scheithauser, Wolfgang Wehner, Thomas Gramatte