Patents by Inventor Dario Lazzari
Dario Lazzari 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: 20060235116Abstract: The present invention relates to highly compatible hydroxyphenyltriazine UV-absorbers and to their use in organic polymers, especially for protecting the contents of transparent plastic packages such as pharmaceuticals, cosmetics, personal care products, shampoos and the like, and especially foodstuffs such as beverages, fresh vegetables or meat, from the deleterious effects of ultraviolet radiation. Especially advantageous is the combined use of a UV absorber and an oxygen scavenger. It has been found that certain highly compatible tris-aryl-s-triazines are especially effective towards this end when incorporated in the containers or films in which such materials are stored.Type: ApplicationFiled: May 14, 2004Publication date: October 19, 2006Inventors: Dario Lazzari, Manuele Vitali, Michela Bonora, Graziano Zagnoni, Marie-Raphael Morvillier
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Patent number: 7109259Abstract: A compound of the formula (I) wherein n is preferably 3; G1, G2, G3 and G4 are independently of one another e.g. C1–C4alkyl; A1 is e.g. hydrogen or methyl; A2 is e.g. methylene; A3? and A3? are e.g. C1–C4alkyl; A4 is e.g. C1–C8alkyl; Y is e.g. a group of the formula (IV) ?wherein R1 is e.g. hydrogen or methyl, R2 is e.g. methylene, R3? and R3? are e.g. C1–C4alkyl and R4 is e.g. hydrogen or C1–C8alkyl; and Z is e.g. a group of the formula (VI) ?with A10? and A10? being independently of one another e.g. hydrogen or C1–C4alkyl and A11? and A11? being independently of one another e.g. C2–C6alkylene, is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.Type: GrantFiled: May 3, 2002Date of Patent: September 19, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Mirko Rossi, Graziano Zagnoni, Alessandro Zedda, Stephen Mark Andrews
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Publication number: 20060155065Abstract: The present invention discloses a process for the preparation of a stabilized polyester that is low in the generation of aldehydes which comprises reacting one or more diacids with one or more diols in an esterification process, and/or one or more diesters with one or more diols in a transesterification process in the presence of an effective amount of a stabilizer selected from the group consisting of (a) a polyhydric alcohol which is for example poly(ethylene-co-vinyl alcohol), poly(styrene-co-allyl alcohol), maltitol, isomalt, sorbitol, xylitol, sucrose, mucic acid dibutylester, mucic acid di(phenyl-1-ethyl)ester, pentaerythritol or dipentaerythritol; (b) a compound of the formula II which is for example di-iso-octyl-phosphinic acid; (c) a sterically hindered amine which is for example Tinuvin 123 or Tinuvin 622; (d) a polyacrylamide, an anionic acrylic polymer or a cationic acrylamide copolymer; or (e) a hydroxylamine and/or a nitrone.Type: ApplicationFiled: February 7, 2006Publication date: July 13, 2006Inventors: Dirk Simon, Dario Lazzari, Stephen Andrews, Heinz Herbst
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Publication number: 20060154818Abstract: Polymeric material, containing a phenolic antioxidant and/or phenolic UVA and a colour former is unchanged by invisible light and may be coloured by irradiation with energy higher than visible light.Type: ApplicationFiled: January 12, 2003Publication date: July 13, 2006Inventors: Mara Destro, Dario Lazzari, Dirk Simon, James Taylor, Manuele Vitali, Michael Heneghan
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Publication number: 20060141187Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, when extrusion compounded exhibits a lower residual acetaldehyde content than does polyester or polyamide alone when similarly treated. The invention pertains to any polyester or polyamide used in the manufacture of molded articles, fibers or films, for instance bottles or containers which are used to store consumer materials, for example food, beverages and water.Type: ApplicationFiled: January 5, 2006Publication date: June 29, 2006Inventors: Paul Odorisio, Stephen Andrews, Dario Lazzari, Dirk Simon, Roswell King, Melissa Stamp, Roger Reinicker, Michael Tinkl, Natacha Berthelon, Daniel Muller, Urs Hirt
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Patent number: 7034069Abstract: The present invention relates to highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers and for their use in protecting plants in green houses and the protection of foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, shampoos and the like from the deleterious effects of ultraviolet radiation. It has been found that certain highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers are especially effective towards this end when incorporated in the containers or films in which such materials are stored.Type: GrantFiled: June 24, 2002Date of Patent: April 25, 2006Assignee: Ciba Specialty Chemicals Corp.Inventors: Dario Lazzari, Gianluca Ferri, Massimiliano Sala, Michela Bonora, Manuele Vitali
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Patent number: 7022390Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, when extrusion compounded exhibits a lower residual acetaldehyde content than does polyester or polyamide alone when similarly treated. The invention pertains to any polyester or polyamide used in the manufacture of molded articles, fibers or films, for instance bottles or containers which are used to store consumer materials, for example food, beverages and water.Type: GrantFiled: December 2, 2004Date of Patent: April 4, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Paul A. Odorisio, Stephen M Andrews, Dario Lazzari, Dirk Simon, Roswell E. King, III, Melissa Stamp, Roger Reinicker, Michael Tinkl, Natacha Berthelon, Daniel Müller, Urs Hirt
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Patent number: 7002010Abstract: The instant invention discloses a process for the preparation of compounds of the formula I: wherein the general symbols are as defined in claim 1, which process comprises reacting a compound of formula II: wherein the general symbols are as defined in claim 1, with a compound of the formula III: wherein R5 is as defined in claim 1. The compounds of the formula II are new and useful as stabilizers for protecting organic materials, in particular synthetic polymers, reprographic materials or coating materials against oxidative, thermal or light-induced degradation.Type: GrantFiled: December 4, 2001Date of Patent: February 21, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Mirko Rossi, Giuseppe Veronesi, Nazzareno Ruggeri, Katharina Fritzsche, Adalbert Braig
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Patent number: 6924330Abstract: A compound of the formula (I) wherein G1, G2, G3 and G4 are independently of one another C1-C18alkyl or C5-C12cycloalkyl or the radicals G1 and G2 and the radicals G3 and G4 form independently of one another, together with the carbon atom they are attached to, C5-C12cycloalkyl; R is hydrogen, C1-C18alkyl, oxyl, —OH, —CH2CN, C3-C6alkenyl, C3-C8alkynyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C8acyl, C1-C18alkoxy, C1-C18hydroxyalkoxy, C2-C18alkenyloxy, C5-C12cycloalkoxy, C7-C12phenylalkoxy unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C18alkanoyloxy, (C1-C18alkoxy)carbonyl, glycidyl or a group —CH2CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G1, G2, G3, G4 and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material agType: GrantFiled: February 19, 2001Date of Patent: August 2, 2005Assignee: Ciba Specialty Chemicals Corp.Inventors: Dario Lazzari, Graziano Zagnoni
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Patent number: 6908650Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, when extrusion compounded exhibits a lower residual acetaldehyde content than does polyester or polyamide alone when similarly treated. The invention pertains to any polyester or polyamide used in the manufacture of molded articles, fibers or films, for instance bottles or containers which are used to store consumer materials, for example food, beverages and water.Type: GrantFiled: July 24, 2002Date of Patent: June 21, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Paul A. Odorisio, Stephen M Andrews, Dario Lazzari, Dirk Simon, Roswell E. King, III, Melissa Stamp, Roger Reinicker, Michael Tinkl, Natacha Berthelon, Daniel Müller, Urs Hirt
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Publication number: 20050101759Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, when extrusion compounded exhibits a lower residual acetaldehyde content than does polyester or polyamide alone when similarly treated. The invention pertains to any polyester or polyamide used in the manufacture of molded articles, fibers or films, for instance bottles or containers which are used to store consumer materials, for example food, beverages and water.Type: ApplicationFiled: December 2, 2004Publication date: May 12, 2005Inventors: Paul Odorisio, Stephen Andrews, Dario Lazzari, Dirk Simon, Roswell King, Melissa Stamp, Roger Reinicker, Michael Tinkl, Natacha Berthelon, Daniel Muller, Urs Hirt
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Patent number: 6864325Abstract: The invention relates to metathesis polymers wherein an aromatic group that has UV-light absorbing properties is attached with a bridge group to the polymer. Also disclosed is a polymerizable composition comprising a catalytically effective amount of a penta- or hexavalent ruthenium or osmium carbene catalyst, the process for preparing the metathesis polymer by applying the reaction conditions of Ring Opening Metathesis Polymerization (=ROMP) to the polymerizable composition; and various technical applications of the metathesis polymers.Type: GrantFiled: February 13, 2001Date of Patent: March 8, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Alessandro Zedda, Dario Lazzari, Massimiliano Sala, Michela Bonora, Manuele Vitali, Paul Adriaan Van Der Schaaf
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Publication number: 20050038236Abstract: A compound of the formula (IA) or (IB) wherein G1, G2, G3 and G4 are independently of one another C1-C18alkyl or C5-C12cycloalkyl or the radicals G1 and G2 and the radicals G3 and G4 form independently of one another, together with the carbon atom they are attached to, C5-C12cycloalkyl; R is hydrogen C1-C18alkyl, C1-C18hydroxyalkyl, C2-C18alkenyl, C5-C12cycloalkyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; or C1-C18alkanoyl; R* is hydrogen, C1-C18alkyl, oxyl, —OH, —CH2CN, C3-C6alkenyl, C3-C8alkynyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C8acyl, C1-C18alkoxy, C1-C18hydroxyalkoxy, C2-C18alkenyloxy, C5-C12cycloalkoxy, C7-C12phenylalkoxy unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C18alkanoyloxy, (C1-C18alkoxy)carbonyl, glycidyl or a group —CH2CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; n* is 1, 2 or 3; X is anType: ApplicationFiled: August 18, 2004Publication date: February 17, 2005Inventors: Dario Lazzari, Graziano Zagnoni
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Patent number: 6841703Abstract: The invention relates to a compound of formula Ia, Ib or Ic The open chain alkoxyamine compounds are useful for the polymerization of ethylenically unsaturated monomers. The compounds of the present invention provide polymeric resin products having low polydispersity. The polymerization process proceeds with enhanced monomer to polymer conversion efficiency. In particular, this invention relates to stable free radical-mediated polymerization processes which provide homopolymers, random copolymers, block copolymers, multiblock copolymers, graft copolymers and the like, at enhanced rates of polymerization and enhanced monomer to polymer conversions.Type: GrantFiled: November 18, 2002Date of Patent: January 11, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Nesvadba, Andreas Kramer, Marie-Odile Zink, Dario Lazzari
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Publication number: 20040241111Abstract: The present invention relates to highly compatible hydroxyphenyltriazine UV-absorbers and to their use in protecting plants in green houses and the protection of foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, shampoos and the like from the deleterious effects of ultraviolet radiation. It has been found that certain highly compatible tris-arly-s.triazines are especially effective towards this end when incorporated in the containers or films in which such materials are stored.Type: ApplicationFiled: June 30, 2004Publication date: December 2, 2004Inventors: Dario Lazzari, David George Leppard, Massimiliano Sala, Manuele Vitali, Graziano Zagnoni, Gianluca Ferri
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Publication number: 20040209981Abstract: The present invention relates to highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers and for their use in protecting plants in green houses and the protection of foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, shampoos and the like from the deleterious effects of ultraviolet radiation. It has been found that certain highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers are especially effective towards this end when incorporated in the containers or films in which such materials are stored.Type: ApplicationFiled: December 29, 2003Publication date: October 21, 2004Inventors: Dario Lazzari, Gianluca Ferri, Massimiliano Sala, Michela Bonora, Manuele Vitali
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Patent number: 6762226Abstract: Polyoxymethylene, blends of polycarbonate with acrylonitrile-butadiene-styrene terpolymer, and coatings based on a functional acrylate resin and a crosslinking agent, which are stabilized by addition of a compound of the formula I wherein s is from the range 1 to 8; R1, R2, R3 and R4, independently of each other, are C1-C4alkyl, or R1 and R2 or R3 and R4, together with the carbon atom to which they are bound, form a cyclopentyl or cyclohexyl ring; R5 is hydrogen; C1-C18alkyl; oxyl; OH; CH2CN; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C7-C12phenylalkyl; C7-C15phenylalkyl, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; C7-C15phenylalkoxy; C7-C15phenylalkoxy, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; or R5 is C1-C8alkanoyl; C3-C5alkenoyl; C1-C18alkanoyloxy; glycidyl; or a group —CH2CH(OH)-G, in which G is hydrogen, methyl or phenyl; and A is as descriType: GrantFiled: October 15, 2002Date of Patent: July 13, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Alessandro Zedda, Graziano Zagnoni, Massimiliano Sala, Dario Lazzari, Stephen Mark Andrews
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Publication number: 20040106767Abstract: The present invention discloses a process for the preparation of a stabilized polyester that is low in the generation of aldehydes which comprises reacting one or more diacids with one or more diols in an esterification process, and/or one or more diesters with one or more diols in a transesterification process in the presence of an effective amount of a stabilizer selected from the group consisting of (a) a polyhydric alcohol which is for example poly(ethylene-co-vinyl alcohol), poly(styrene-co-allyl alcohol), maltitol, isomalt, sorbitol, xylitol, sucrose, mucic acid dibutylester, mucic acid di(phenyl-1-ethyl)ester, pentaerythritol or dipentaerythritol; (b) a compound of the formula II, which is for example di-iso-octyl-phosphinic acid; (c) a sterically hindered amine which is for example Tinuvin 123 or Tinuvin 622; (d) a polyacrylamide or a cationic acrylamide copolymer, or (e) a hydroxyamine and/or a nitrone.Type: ApplicationFiled: September 24, 2003Publication date: June 3, 2004Inventors: Dirk Simon, Dario Lazzari, Stephen Mark Andrews, Heinz Herbst
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Publication number: 20040024252Abstract: The instant invention discloses a process for preparation of compounds of the formula (I), wherein the general symbols are as defined in claim 1, which process comprises reacting a compound of formula (II), wherein the general symbols are as defined in claim 1, with a compound of the formula (III), wherein R5 is as defined in slaim 1. The compounds of the formula (II) are new and useful as stabilizers for protecting organic materials, in particular synthetic polymers, reprographic materials or coating materials against oxidative, thermal or light-induced degradation.Type: ApplicationFiled: May 21, 2003Publication date: February 5, 2004Inventors: Dario Lazzari, Mirko Rossi, Giuseppe Veronesi, Nazzareno Ruggeri, Katharina Fritzsche, Adalbert Braig
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Patent number: 6642383Abstract: Compounds of the formula (I) wherein p is zero or 1; q and r, independently of each other, are an integer from 1 to 6; and s is a number ranging from 1 to 8; X is —O— or, when p is 1, X is also a group Rw, Rx, Ry and Rz are, independently of each other, C1-C18alkyl, C5-C12cycloalkyl or C1-C5hydroxyalkyl, especially methyl; R1 is hydrogen; C1-C18alkyl; oxyl; OH; CH2CN; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C7-C12phenylalkyl; C7-C15phenylalkyl, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; C7-C15phenylalkoxy; C7-C15phenylalkoxy, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; or R1 is C1-C8alkanoyl; C3-C5alkenoyl; C1-C18alkanoyloxy; glycidyl; or a group —CH2CH(OH)—G, in which G is hydrogen, methyl or phenyl; R2 is hydrogen, C1-C8alkyl, C5-C12cycloalkyl or C1-C4hydroxyalkyl; R3, R4, R5 independently of each otherType: GrantFiled: May 15, 2001Date of Patent: November 4, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Graziano Zagnoni, Mirko Rossi, Alessandro Zedda, Valerio Borzatta, Stephen Mark Andrews