Patents by Inventor Andreas Muehlebach
Andreas Muehlebach 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: 7199177Abstract: The present invention relates to a composition containing ATRP polymers and dispersible inorganic or organic pigment particles. The pigment composition is useful for preparing coating compositions, prints, images, inks or lacquers and other disperse systems.Type: GrantFiled: October 22, 2003Date of Patent: April 3, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: Clemens Auschra, Andreas Mühlebach, Ernst Eckstein
-
Patent number: 7157537Abstract: The invention relates to ?-halocarboxylic acid esters of polyhydric, at least trihydric, alcohols, which can be used as initiators for ATRP. Using those initiators it is possible to prepare block copolymers having branched structures.Type: GrantFiled: February 26, 2004Date of Patent: January 2, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Mühlebach, François Rime
-
Publication number: 20060257662Abstract: The present invention relates to a process for the production of porous inorganic materials or a matrix material containing nanoparticles with high uniformity of thickness and/or high effective surface area and to the materials obtainable by this process. By the abovementioned process materials with a defined thickness in the region of ±10%, preferably ±5%, of the average thickness are available.Type: ApplicationFiled: January 12, 2004Publication date: November 16, 2006Inventors: Patrice Bujard, Andreas Mühlebach, Paul Van Der Schaaf
-
Patent number: 6936656Abstract: The invention relates to comb polymers and macromonomers based on acrylates prepared by the ATRP (Atom Transfer Radical Polymerization) method. These polymers have an improved capability of dispersing pigments in the given solvent. The invention also relates to compositions comprising the comb polymers and macromonomers dispersible inorganic or organic pigment particles. The compositions are used by applying them to any suitable substrate, for example to metal, wood plastic or ceramic materials.Type: GrantFiled: January 4, 2001Date of Patent: August 30, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Mühlebach, François Rime, Clemens Auschra, Ernst Eckstein
-
Patent number: 6936670Abstract: The instant invention relates to multifunctional alkoxyamines based on polyalkylpiperidines, polyalkylpiperazinones and polyalkylmorpholinones and their use as polymerization regulatros/initiators. Further subjects of the invention are a polymerizable composition comprising an ethylenically unsaturated monomer or oligomer and the alkoxyamine compound as well as a process for polymerization and a process for preparation of the compounds.Type: GrantFiled: June 27, 2002Date of Patent: August 30, 2005Assignee: Ciba Specialty Chemical Corp.Inventors: Andreas Kramer, Andreas Mühlebach, Peter Nesvadba, Marie-Odile Zink, Tobias Hintermann
-
Patent number: 6849679Abstract: The present invention relates to a composition containing modified block copolymer dispersants and dispersible inorganic or organic pigments. The block copolymers are modified with a salt forming group. The pigment composition is useful for preparing coating compositions, prints, images, inks or lacquers and other disperse systems.Type: GrantFiled: April 23, 2002Date of Patent: February 1, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Clemens Auschra, Ernst Eckstein, Marie-Odile Zink, Andreas Mühlebach
-
Patent number: 6583245Abstract: The present invention relates to a polymerizable composition, comprising a) at least one compound of formula (I) (RG)—A—(Stab) (I), wherein (Stab) is a light stabilizer radical selected from the group consisting of sterically hindered amines, hydroxyphenyl-s-triazines, hydroxyphenyl-benzotriazols and o-hydroxy-benzophenones; A is a spacer group or a direct bond; and (RG) is a group containing at least one ethylenically unsaturated functional group; and either b1) a compound of formula (II) Y—X (II), wherein X represents a group having at least one carbon atom and is such that the free radical derived from X is capable of initiating polymerization and Y represents a group being such that the free radical Y· derived from it forms a stable free radical; or b2) a stable free radical Y· and a free radical source from which a radical is formed capable of initiating polymerization, or b3) a compound of formula (III) and a catType: GrantFiled: June 21, 2001Date of Patent: June 24, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Alfred Steinmann, Michael Roth, Werner Stauffer, Peter Nesvadba, Andreas Mühlebach
-
Patent number: 6465554Abstract: The invention relates to compositions of hexacoordinated ruthenium and osmium carbenes with a carbonyl group as ligand and a vinyl group as substituent on the carbene group as catalysts for the photoinduced ring-opening metathesis of strained cycloolefins. It also relates to novel hexacoordinated ruthenium and osmium carbenes having a carbonyl group as ligand and a vinyl group as substituent on the carbene group, to compositions of the catalyst with cycloolefins, and to the polymerization process.Type: GrantFiled: September 25, 2000Date of Patent: October 15, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Paul Adriaan Van Der Schaaf, Roman Kolly, Andreas Mühlebach, Andreas Hafner
-
Patent number: 6433100Abstract: The invention relates to a process for the preparation of polymers containing N→O terminal groups and to compositions comprising polymers obtained by this process. The process comprises polymerizing by atom transfer radical polymerization (ATRP) an aliphatic monomer of oligomer containing ethylene groups in the presence of a polymerization initiator.Type: GrantFiled: February 22, 2001Date of Patent: August 13, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Kramer, Andreas Mühlebach, François Rime
-
Patent number: 6417363Abstract: Penta- and hexa-coordinated, bridged ruthenium and osmium catalysts of the formula wherein Me is ruthenium or osmium; L1 and L2 are neutral ligands having electron donor properties; X is an anionic ligand; Y is oxygen or sulphur; A is a direct bond, C1-C4alkylene or C2-C4alkylidene; Z is a direct bond, oxygen, sulphur or the groups wherein R1 and R2 are hydrogen or hydrocarbon radicals; their preparation and their us in the synthesis of polymers, in the ring-closure metathesis of diolefins, in the cross metathesis of olefins and in the isomerisation of olefins are disclosed.Type: GrantFiled: May 26, 2000Date of Patent: July 9, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Paul Adriaan Van Der Schaaf, Andreas Mühlebach, Andreas Hafner, Roman Kolly
-
Patent number: 6407190Abstract: The invention relates to penta- and hexacoordinated ruthenium and osmium carbene catalysts, in which a sulfur, oxygen or nitrogen atom is attached to the carbene group which is coordinated with the central ruthenium or osmium atom, to their preparation and to their use for synthesizing polymers, for ring-closing metathesis of olefins and for isomerizing olefins.Type: GrantFiled: December 15, 1999Date of Patent: June 18, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Paul Adriaan Van Der Schaaf, Andreas Hafner, Andreas Mühlebach
-
Patent number: 6323295Abstract: Composition comprising (a) catalytic amounts of a one-component catalyst for metathesis polymerization and (b) at least one polymer with strained cycloalkenylene radicals bonded to the polymer backbone via a divalent bridge group, alone or as a mixture with strained cycloolefins. The composition can be polymerized thermally or photochemically by metathesis polymerization and is suitable for the production of shaped articles, coatings and relief images. The polymers (b) are likewise claimed.Type: GrantFiled: August 6, 1997Date of Patent: November 27, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Mühlebach, Andreas Hafner, Paul Adriaan Van Der Schaaf
-
Patent number: 6306987Abstract: Disclosed is a compound of formula (I), and its use in preparing metathesis polymers of dicyclopentadiene and/or other strained cycloolefins in which Me is ruthenium or osmium; X1 and X2 independently of one another are anionic ligands, or X1 and X2 together are a bis-anionic ligand; Y is oxygen, sulfur or the groups —NR7— or —PR7—, where R7 is hydrogen or a substituent selected from the group C1-C6alkyl, C6-C13aralkyl, sulfonyl and —C(═O)Rs2 and Rs2 is hydrogen or a substituent selected from the group C1-C12alkyl, C2-C12alkenyl, C3-C12cycloalkyl, C3-C12cycloalkenyl, C2-C11heterocycloalkyl, C2-C11heterocycloalkenyl, C5-C12aryl, C1-C9heteroaryl, C6-C14aralkyl, C2-C13heteroaralkyl, C6-C14aralkenyl and C3-C13heteroaralkenyl; n is 0 or 1; L1 is tertiary phosphine; and L2 is a neutral e− donor ligand which is coordinated to the metal atom and is attached via the bridge group C* to the carbon atom of the carbene group if n is 0 and to Y if n is 1.Type: GrantFiled: December 16, 1999Date of Patent: October 23, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Paul Adriaan Van Der Schaaf, Andreas Hafner, Andreas Mühlebach
-
Patent number: 6281307Abstract: Composition comprising (a) catalytic amounts of a one-component catalyst for metathesis polymerization and (b) at least one polymer with strained cycloalkenylene radicals bonded in the polymer backbone, alone or as a mixture with strained cycloolefins. The composition can be polymerized thermally or photochemically by metathesis polymerization and is suitable for the production of shaped articles, coatings and relief images. The catalyst is selected from Ruthenium and Osmium compounds.Type: GrantFiled: July 31, 1997Date of Patent: August 28, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Mühlebach, Andreas Hafner, Paul Adriaan Van Der Schaaf
-
Patent number: 6277935Abstract: A solventless polymerizable composition comprising (a) at least one strained cycloolefin that is liquid or is meltable without decomposition, and (b) a catalytic amount of at least one compound of formula I or Ia or a mixture of compounds of formula I and Ia wherein Me is ruthenium or osmium; T1 and T2 are each independently of the other a tertiary phosphine or T1 and T2 together form a ditertiary diphosphine; T3 is hydrogen, C1-C12alkyl; C3-C8cycloalkyl, C3-C7heterocycloalkyl having one or two hetero atoms selected from the group —O—, —S— and —N—, C6-C14aryl, or C4-C15heteroaryl having from one to three hetero atoms selected from the group —O—, —S— and —N—, which are unsubstituted or substituted by C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C6-C10aryl, C6-C10aryloxy, —NO2 or by halogen; T4 is C6-C16arene or C4-C15heteroarene each of which is unsubstituted or substituted by from one to three C1-C4alkyl, C1-C4haType: GrantFiled: April 13, 1998Date of Patent: August 21, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Hafner, Paul Adriaan Van Der Schaaf, Andreas Mühlebach
-
Patent number: 6235856Abstract: Composition of (a) dicyclopentadiene, by itself or in a mixture with a strained cycloolefin, and (b) a catalytic amount of at least one carbene-free, divalent-cationic ruthenium or osmium compound as a single-component catalyst, which contains at least one phosphine group and a total of 2 to 5 ligands bonded to the metal atom, and which contains acid anions for charge balancing. The compositions can be polymerized by means of heat (metathesis polymerization) and are suitable for the production of shaped articles and coatings.Type: GrantFiled: June 19, 1997Date of Patent: May 22, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Hafner, Paul Adriaan Van Der Schaaf, Andreas Mühlebach
-
Patent number: 6204347Abstract: A catalyst system for the ring-opening metathesis polymerization, which consists of at least two components (a) and (b), wherein (a) is a ruthenium compound of formula I or II RuX2(L1)m(L2)n(L3)o(L4)p (I), ARuX2(L1)r(L2)s (II), wherein L1, L2, L3 and L4 are each independently of the other C1-C18alkylcyanide, C8-C24-aralkylcyanide, tertiary amine, tertiary phosphine which does not contain any secondary alkyl or cycloalkyl radicals bound to the phosphorus atom, or phosphite, X is halogen, A is arene, m, n, o and p are integers from 0 to 4, where 2≦m+n+o+p≦4, r and s are integers from 0 to 2, where 1≦r+s≦2, and (b) is a tertiary phosphine containing at least one secondary alkyl radical or cycloalkyl radical bound to the phosphorus atom, is particularly suitable for the polymerization of strained cycloolefins by the RIM process.Type: GrantFiled: August 18, 1999Date of Patent: March 20, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Andreas Hafner, Paul Adriaan Van Der Schaaf, Andreas Mühlebach