Patents Assigned to Perstorp France
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Patent number: 8716426Abstract: A process for the preparation of an allophanate of one or more identical or different isocyanates, compositions obtained by the process, and uses of the compositions are disclosed. The process comprises reacting an isocyanate with at least one monoalcohol comprising an ether or polyether functional group in the presence of a bismuth-comprising catalyst and a metal compound as co-catalyst.Type: GrantFiled: December 8, 2009Date of Patent: May 6, 2014Assignee: Perstorp FranceInventors: Jean-Marie Bernard, Johannès Schwarz, Philippe Olier
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Patent number: 8378139Abstract: A process for oligomerizing isocyanates includes a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is carried out in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m3/° C.Type: GrantFiled: April 2, 2009Date of Patent: February 19, 2013Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Institut National Polytechnique de Toulouse, Perstorp FranceInventors: Hocine Kabir, Johannes Schwarz, Christophe Gourdon, Sébastien Elgue
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Patent number: 8318310Abstract: Polyisocyanate coating compositions, the polyisocyanates of which include dimer structural units (patterns) and imino-trimer structural units (patterns), are converted, via cross-linking, into useful such coatings as paints or varnishes having enhanced shock-resistant properties, notably chip-resistant properties for vehicle body parts.Type: GrantFiled: March 22, 2007Date of Patent: November 27, 2012Assignee: Perstorp FranceInventors: Jean-Marie Bernard, Mathias Dubecq
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Patent number: 8247482Abstract: The invention relates to a composition comprising at least one (poly)isocyanate and at least one surfactant comprising an amino acid and a mixture of compounds of formulae (I) and (II) wherein i and j independently represent 0 or 1; and R1 et R2 are identical or different and independently represent a hydrocarbonated chain. Said mixture of compounds of formulae (I) and (II) is characterized in that the molar ratio between compound (II) and compound (I) is higher than 1.Type: GrantFiled: November 17, 2008Date of Patent: August 21, 2012Assignee: Perstorp FranceInventors: Jean-Marie Bernard, Philippe Olier
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Publication number: 20120142831Abstract: Hydrophilic hardener compositions include at least one hydrophobic polyisocyanate, the hydrophobic polyisocyanate containing one or more allophanate functional groups, and the allophanate functional groups being present in the hardener compositions in an amount at least equal to 6 mol % relative to the total number of moles of isocyanate monomers converted in the preparation of the hardener composition, and are useful for the preparation in aqueous phase of high-gloss polyurethane coating formulations.Type: ApplicationFiled: February 14, 2012Publication date: June 7, 2012Applicant: PERSTORP FRANCEInventor: Damien BOURGEOIS
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Patent number: 8173742Abstract: The invention relates to a composition and a method of preparing one such composition and an isocyanatoalkoxysilane; the polyisocyanate composition contains at least two different oligomeric compounds comprising at least three units and at most five units selected from aminoalkylsilane units and diamine units and at least one function selected from isocyanate functions and from those derived therefrom, the aforementioned compounds having at least two aminoalkylsilane units and another compound having at least two diamine units; the invention is suitable for coatings.Type: GrantFiled: November 23, 2010Date of Patent: May 8, 2012Assignee: Perstorp FranceInventors: Jean-Marie Bernard, Johannes Schwarz, Denis Revelant
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Patent number: 8158817Abstract: The invention relates to a process for the synthesis of a polyisocyanate composition comprising acylureas. According to the invention, a starting composition comprising a compound having at least two isocyanate functional groups is subjected to a reaction with at least two acid functional groups, with at least one of the acid functional groups having a pKa value of less than or equal to 3, and at least one of the acid functional groups having a pKa value of more than 3 and less than or equal to 6, at a temperature at least equal to 50 ° C., wherein the acid functional group having a pKa value of less than or equal to 3 and the acid functional group having a pKa value of more than 3 and less than or equal to 6 are present on two different acids or on the same acid.Type: GrantFiled: March 1, 2010Date of Patent: April 17, 2012Assignee: Perstorp FranceInventors: Jean-Marie Bernard, Denis Revelant, Cédric Amouyal
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Publication number: 20120016073Abstract: A process for the preparation of an allophanate of one or more identical or different isocyanates, compositions obtained by the process, and uses of the compositions are disclosed. The process comprises reacting an isocyanate with at least one monoalcohol comprising an ether or polyether functional group in the presence of a bismuth-comprising catalyst and a metal compound as co-catalyst.Type: ApplicationFiled: December 8, 2009Publication date: January 19, 2012Applicant: Perstorp FranceInventors: Jean-Marie Bernard, Johannès Schwarz, Philippe Olier
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Publication number: 20110306786Abstract: A process for phosgenating an amine comprising employing a plug-flow type reactor with internal recycle is disclosed. The process can be continuous, which makes it possible to prepare, in a single stage, a (poly)isocyanate with a good yield, without formation of byproducts and on simplifying the plant in order to carry out the process so as to promote safety.Type: ApplicationFiled: December 18, 2009Publication date: December 15, 2011Applicant: PERSTORP FRANCEInventors: Nicolas Perret, Denis Revelant
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Publication number: 20110218314Abstract: A process for oligomerizing isocyanates includes a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is carried out in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m3/° C.Type: ApplicationFiled: April 2, 2009Publication date: September 8, 2011Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE(C.N.R, INSTITUE NATIONAL POLYTECHNIQUE DE TOULOUSE, PERSTORP FRANCEInventors: Hocine Kabir, Johannes Schwarz, Christophe Gourdon, Sébastien Elgue
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Publication number: 20110065957Abstract: The invention relates to a composition and a method of preparing one such composition and an isocyanatoalkoxysilane; the polyisocyanate composition contains at least two different oligomeric compounds comprising at least three units and at most five units selected from aminoalkylsilane units and diamine units and at least one function selected from isocyanate functions and from those derived therefrom, the aforementioned compounds having at least two aminoalkylsilane units and another compound having at least two diamine units; the invention is suitable for coatings.Type: ApplicationFiled: November 23, 2010Publication date: March 17, 2011Applicant: Perstorp FranceInventors: Jean-Marie Bernard, Johannes Schwarz, Denis Revelant
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Publication number: 20110046301Abstract: The present invention relates to a process for preparing a compound comprising at least a urethane group —HN—C(?O)—O, said process comprising a step (E) in which a compound (I) comprising at least an isocyanate functional group —N?C?O is reacted with an organic compound (II) carrying at least a hydroxyl group —OH, said reaction being carried out in a presence of a carbene (III) used as a catalyst.Type: ApplicationFiled: July 25, 2008Publication date: February 24, 2011Applicant: PERSTORP FRANCEInventors: Gerard Mignani, Mathias Destarac, Daniel Taton, Yves Gnanou, Antoine Baceiredo, Tsuyoshi Kato, Fabian Bonnette, Gopakumar Sivasankarapillai
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Patent number: 7875672Abstract: Two component (2K) waterborne polyurethane coating compositions which when cured achieve excellent anti-graffiti properties at low VOC level (below 100 g/L) are disclosed. The composition comprises (A) a fluorinated polyol and optionally a non-fluorinated polyol; and (B), a blend of polyisocyanates comprising a hydrophilically modified trimer of hexamethylene diisocyanate (HDT) and a hydrophilic ally modified trimer of isophorone diisocyanate (IPDT). The glass transition temperature of the ambient cured coatings, crosslinked network structure, and fluorine content at the surface enable excellent anti-graffiti properties. The waterborn coatings of the invention have excellent recoatability and exceptional chemical resistance.Type: GrantFiled: August 22, 2008Date of Patent: January 25, 2011Assignee: Perstorp FranceInventors: Xiaodong Wu, Richard P. Rosen
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Patent number: 7875693Abstract: The invention relates to a composition and a method of preparing one such composition and an isocyanatoalkoxysilane; the polyisocyanate composition contains at least two different oligomeric compounds comprising at least three units and at most five units selected from aminoalkylsilane units and diamine units and at least one function selected from isocyanate functions and from those derived therefrom, the aforementioned compounds having at least two aminoalkylsilane units and another compound having at least two diamine units; the invention is suitable for coatings.Type: GrantFiled: December 16, 2004Date of Patent: January 25, 2011Assignee: Perstorp FranceInventors: Jean-Marie Bernard, Johannes Schwarz, Denis Revelant
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Publication number: 20100273920Abstract: The present invention relates to a composition comprising: at least one (poly)isocyanate and at least one surfactant comprising an acid or a mixture of acids and an optionally heterocyclic amine or polyamine or a mixture of such amines, said amine or polyamine or at least one amine of said mixture of amines carrying at least one alkylene oxide, preferably ethylene oxide, functional group.Type: ApplicationFiled: November 18, 2008Publication date: October 28, 2010Applicant: PERSTORP FRANCEInventors: Jean-Marie Bernard, Philippe Olier
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Publication number: 20100256286Abstract: The invention relates to a composition comprising at least one (poly)isocyanate and at least one surfactant comprising an amino acid and a mixture of compounds of formulae (I) and (II) wherein i and j independently represent 0 or 1; and R1 et R2 are identical or different and independently represent a hydrocarbonated chain. Said mixture of compounds of formulae (I) and (II) is characterised in that the molar ratio between compound (II) and compound (I) is higher than 1.Type: ApplicationFiled: November 17, 2008Publication date: October 7, 2010Applicant: Perstorp FranceInventors: Jean-Marie Bernard, Philippe Olier
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Publication number: 20100145109Abstract: The present invention relates to a process for preparing dinitrotoluene. The process of the invention for preparing dinitrotoluene from mononitrotoluene, which comprises carrying out a mononitrotoluene nitration reaction using a nitrating mixture comprising nitric acid, sulphuric acid and water resulting in a two-phase medium and separating the organic and aqueous phases of said two-phase medium, is characterized in that the mononitrotoluene nitration is carried out using a nitrating mixture comprising at most 10% by weight of water resulting in a two-phase medium, in that the organic and aqueous phases of said two-phase medium are separated, and in that the aqueous phase derived from the separating operation is recycled, at the end of the mononitrotoluene nitration reaction and before the separation of the organic and aqueous phases, such that the weight ratio of the aqueous phase to the organic phase is at least equal to 1.2.Type: ApplicationFiled: July 8, 2008Publication date: June 10, 2010Applicant: PERSTORP FRANCEInventor: Philippe Marion
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Publication number: 20100137507Abstract: The invention relates to a modified (poly)isocyanate composition that contains a modified (poly)isocyanate and at least one solvent. The invention also relates to the use of this composition for preparing coatings such as paints and varnishes.Type: ApplicationFiled: March 21, 2008Publication date: June 3, 2010Applicant: PERSTORP FRANCEInventors: Jean-Marie Bernard, Aurore Jomier
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Publication number: 20100137483Abstract: The mixture of the invention comprises at least one cycloaliphatic polyisocyanate and at least one solvent comprising an ester function and an ether function. An aqueous emulsion can be obtained from this mixture which also comprises a compound bearing a function with a mobile hydrogen, selected from primary or secondary hydroxyl functions, phenol functions, primary and/or secondary amino functions, carboxylic functions and a thiol function or a compound containing precursor functions capable of freeing hydroxyl functions. The emulsion can be used for the manufacture of coatings on a substrate of cement, of wood or especially of leather, and also for the manufacture of adhesives.Type: ApplicationFiled: April 29, 2008Publication date: June 3, 2010Applicant: PERSTORP FRANCEInventors: Philippe Barbeau, Philippe Olier, Johannes Schwarz