Patents by Inventor Christopher Phanopoulos
Christopher Phanopoulos 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: 20230091439Abstract: The invention relates to a process for preparing a derivatized polysaccharide and stable isocyanate-based dispersions comprising derivatized polysaccharide.Type: ApplicationFiled: February 26, 2021Publication date: March 23, 2023Inventors: Christopher Phanopoulos, Tugba Vardareli
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Publication number: 20230057382Abstract: The present invention relates to silyl terminated polyurethanes and to intermediates for the preparation thereof. In particular to an allyl-monool-containing initiator, allyl-terminated polyurethane prepolymer and to processes for their preparation. According to another of its aspect, the invention relates to a product obtainable by curing the silyl terminated polyurethane of the invention and to uses thereof.Type: ApplicationFiled: December 17, 2020Publication date: February 23, 2023Applicant: Huntsman International LLCInventors: Ya-Mi Chuang, Giulio Martini, Christopher Phanopoulos
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Publication number: 20220220247Abstract: The present invention relates to a liquid composition comprising at least one silylated polymer and at least one tin-free polyhedral oligomeric titanium silsesquioxane in liquid form.Type: ApplicationFiled: May 26, 2020Publication date: July 14, 2022Inventors: Christopher Phanopoulos, Ya-Mi Chuang, Giulio Martini
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Publication number: 20210395429Abstract: The present invention relates to a hybrid polyurethane-polyhydroxyurethane (PU-PHU) composition obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound, resulting in the formation of at least one prepolymer, (ii) Reacting said at least one prepolymer with at least one cyclic carbonate functional group containing compound, leading to the formation of a cyclic carbonate-terminated prepolymer, (iii) Ring-opening reaction of said cyclic carbonate-terminated prepolymer with at least one amine functional group containing compound resulting in said hybrid PU-PHU composition, characterised in that said ring-opening reaction step is carried out above room temperature, preferably above 20° C., more preferably above 25° C.Type: ApplicationFiled: September 27, 2019Publication date: December 23, 2021Inventors: Ya-Mi Chuang, Giulio Martini, Christopher Phanopoulos
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Publication number: 20210340310Abstract: The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with a first isocyanate-reactive compound having a number average molecular weight lower than 400, resulting in the formation of at least one prepolymer, (ii) Reacting said prepolymer, in stoichiometric excess, with a second isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of a modified prepolymer, (iii) Reacting said modified prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iv) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-terminType: ApplicationFiled: September 5, 2019Publication date: November 4, 2021Inventors: Ya-Mi Chuang, Giulio Martini, Christopher Phanopoulos
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Patent number: 11155002Abstract: A process for binding lignocellulosic material comprising the steps of a) bringing lignocellulosic material into contact with a methylene bridged polyphenyl polyisocyanate composition and b) subsequently allowing said material to bind wherein said polyisocyanate composition has a surface tension below or equal to 46 mN/m.Type: GrantFiled: August 14, 2018Date of Patent: October 26, 2021Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Griet Pans, Daniele Pratelli, Christopher Phanopoulos
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Publication number: 20210324132Abstract: The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of at least one prepolymer having soft blocks and hard blocks in its structure, which prepolymer contains unreacted isocyanate monomer, (ii) Reacting said at least one prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iii) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-terminated prepolymer.Type: ApplicationFiled: September 5, 2019Publication date: October 21, 2021Inventors: Ya-Mi Chuang, Giulio Marini, Christopher Phanopoulos
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Patent number: 11028295Abstract: The invention relates to a formulation comprising: —a first component which is formed from at least one isocyanate and at least one amino resin, wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acetoguanamine and mixtures thereof; and —a second component comprising at least one polyether, wherein said polyether comprises at least one ethylene oxide moiety and at least one isocyanate reactive group selected from the group comprising hydroxyl, amino, epoxy, and thiol, preferably hydroxyl.Type: GrantFiled: January 8, 2013Date of Patent: June 8, 2021Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Servaas Holvoet, Daniele Pratelli, Christopher Phanopoulos
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Publication number: 20200206969Abstract: A process for binding lignocellulosic material comprising the steps of a) bringing lignocellulosic material into contact with a methylene bridged polyphenyl polyisocyanate composition and b) subsequently allowing said material to bind wherein said polyisocyanate composition has a surface tension below or equal to 46 mN/m.Type: ApplicationFiled: August 14, 2018Publication date: July 2, 2020Inventors: Griet Pans, Daniele Pratelli, Christopher Phanopoulos
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Patent number: 10604616Abstract: Composition comprising lignin dispersed in a polyisocyanate wherein the (d90) mean particle size of the dispersed lignin is less than 5 ?m, preferably less than 2 ?m, more preferably less than 1 ?m and use of said composition in various polyurethane applications, in particular structural wood adhesives.Type: GrantFiled: September 29, 2016Date of Patent: March 31, 2020Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Christopher Phanopoulos, Griet Pans, Mathilde Teboul, Jorge Lima Garcia
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Patent number: 10351656Abstract: The present invention relates to a silylated polyurethane obtainable by a process comprising the step of contacting at least one isocyanate with at least one isocyanate-reactive compound and with at least one aminosilane; wherein said at least one isocyanate comprises 2,4?-methylene diphenyl diisocyanate, and wherein said at least one isocyanate comprises less than 50.0% by weight of said 2,4?-methylene diphenyl diisocyanate based on the total weight of said at least one isocyanate. The present invention also relates to a process for preparing said silylated polyurethane. The present invention also relates to formulations and compositions comprising said silylated polyurethane, and the use thereof for the preparation of adhesives, coatings, sealants, elastomers, or foams.Type: GrantFiled: June 10, 2015Date of Patent: July 16, 2019Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Servaas Holvoet, Christopher Phanopoulos, Fabrice Desesquelles
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Publication number: 20180312625Abstract: Composition comprising lignin dispersed in a polyisocyanate wherein the (d90) mean particle size of the dispersed lignin is less than 5 ?m, preferably less than 2 ?m, more preferably less than 1 ?m and use of said composition in various polyurethane applications, in particular structural wood adhesives.Type: ApplicationFiled: September 29, 2016Publication date: November 1, 2018Inventors: Christopher Phanopoulos, Griet Pans, Mathilde Teboul, Jorge Lima Garcia
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Patent number: 9988563Abstract: The invention relates to a composition obtained by simultaneously mixing at least one isocyanate, at least one polyether and at least one amino resin, wherein said polyether comprises at least one ethylene oxide moiety and at least one isocyanate reactive group selected from the group comprising hydroxyl, amino, epoxy, and thiol, and wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acetoguanamine and mixtures thereof.Type: GrantFiled: January 8, 2013Date of Patent: June 5, 2018Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Servaas Holvoet, Daniele Pratelli, Christopher Phanopoulos
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Patent number: 9815911Abstract: The invention relates to a process for preparing a polysaccharide derivative, comprising the steps of: (a) contacting at least one polysaccharide with at least one polysaccharide swelling agent at a temperature of at most 70° C.; and (b) subsequently, contacting the product of step (a) with at least one aromatic isocyanate; thereby preparing a polysaccharide derivative.Type: GrantFiled: June 5, 2013Date of Patent: November 14, 2017Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Christopher Phanopoulos, Servaas Holvoet, Tugba Vardareli, Steve Diamanti
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Patent number: 9752013Abstract: The present invention relates to a tin-free composition comprising at least one silylated polymer and at least one tin-free polyhedral oligomeric metallo silsesquioxane. The present invention also relates to a process of curing a composition comprising a silylated polymer comprising the step of: contacting a silylated polymer with a tin-free polyhedral oligomeric metallo silsesquioxane.Type: GrantFiled: April 1, 2014Date of Patent: September 5, 2017Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Christopher Phanopoulos, Servaas Holvoet, Fabrice Desesquelles, Alexander Rene Klein
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Publication number: 20170198084Abstract: The present invention relates to a silylated polyurethane obtainable by a process comprising the step of contacting at least one isocyanate with at least one isocyanate-reactive compound and with at least one aminosilane; wherein said at least one isocyanate comprises 2,4?-methylene diphenyl diisocyanate, and wherein said at least one isocyanate comprises less than 50.0% by weight of said 2,4?-methylene diphenyl diisocyanate based on the total weight of said at least one isocyanate. The present invention also relates to a process for preparing said silylated polyurethane. The present invention also relates to formulations and compositions comprising said silylated polyurethane, and the use thereof for the preparation of adhesives, coatings, sealants, elastomers, or foams.Type: ApplicationFiled: June 10, 2015Publication date: July 13, 2017Inventors: Servaas Holvoet, Christopher Phanopoulos, Fabrice Desesquelles
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Publication number: 20160046793Abstract: The present invention relates to a tin-free composition comprising at least one silylated polymer and at least one tin-free polyhedral oligomeric metallo silsesquioxane. The present invention also relates to a process of curing a composition comprising a silylated polymer comprising the step of: contacting a silylated polymer with a tin-free polyhedral oligomeric metallo silsesquioxane.Type: ApplicationFiled: April 1, 2014Publication date: February 18, 2016Inventors: Christopher Phanopoulos, Servaas Holvoet, Fabrice Desesquelles, Alexander Rene Klein
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Publication number: 20150152196Abstract: The invention relates to a process for preparing a polysaccharide derivative, comprising the steps of: (a) contacting at least one polysaccharide with at least one polysaccharide swelling agent at a temperature of at most 70° C.; and (b) subsequently, contacting the product of step (a) with at least one aromatic isocyanate; thereby preparing a polysaccharide derivative.Type: ApplicationFiled: June 5, 2013Publication date: June 4, 2015Inventors: Christopher Phanopoulos, Servaas Holvoet, Tugba Vardareli, Steve Diamanti
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Publication number: 20140371382Abstract: The invention relates to a composition obtained by simultaneously mixing at least one isocyanate, at least one polyether and at least one amino resin, wherein said polyether comprises at least one ethylene oxide moiety and at least one isocyanate reactive group selected from the group comprising hydroxyl, amino, epoxy, and thiol, and wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acet oguanamine and mixtures thereof.Type: ApplicationFiled: January 8, 2013Publication date: December 18, 2014Inventors: Servaas Holvoet, Daniele Pratelli, Christopher Phanopoulos
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Publication number: 20140364557Abstract: The invention relates to a formulation comprising: —a first component which is formed from at least one isocyanate and at least one amino resin, wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acetoguanamine and mixtures thereof; and —a second component comprising at least one polyether, wherein said polyether comprises at least one ethylene oxide moiety and at least one isocyanate reactive group selected from the group comprising hydroxyl, amino, epoxy, and thiol, preferably hydroxyl.Type: ApplicationFiled: January 8, 2013Publication date: December 11, 2014Applicant: Huntsman International LLCInventors: Servaas Holvoet, Daniele Pratelli, Christopher Phanopoulos