Patents by Inventor Pablo Steenwinkel
Pablo Steenwinkel 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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Patent number: 7919146Abstract: An aqueous polyurethane composition comprising a polyurethane which is the reaction product of: (A) an isocyanate-terminated prepolymer and (B) at least one active-hydrogen chain-extending compound comprising at least 0.20 stoichiometric equivalents with respect to the isocyanate content of the isocyanate-terminated prepolymer (A), of an active-hydrogen chain-extending compound selected from the group consisting of hydrazine, hydrazine derivatives and mixtures thereof; and wherein at least 0.2 stoichiometric equivalents of the anionic or potentially anionic water-dispersing groups are neutralised with ammonia.Type: GrantFiled: March 13, 2006Date of Patent: April 5, 2011Assignee: DSM IP Assets B.V.Inventors: Pablo Steenwinkel, Andreas Jacobus Josine Goos, Paulus Johannes Maria Hönen, Gerardus Cornelis Overbeek
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Publication number: 20080166485Abstract: An aqueous polyurethane composition comprising a polyurethane which is the reaction product of: (A) an isocyanate-terminated prepolymer and (B) at least one active- hydrogen chain-extending compound comprising at least 0.20 stoichiometric equivalents with respect to the isocyanate content of the isocyanate-terminated prepolymer (A), of an active-hydrogen chain-extending compound selected from the group consisting of hydrazine, hydrazine derivatives and mixtures thereof; and wherein at least 0.2 stoichiometric equivalents of the anionic or potentially anionic water-dispersing groups are neutralised with ammonia.Type: ApplicationFiled: March 13, 2006Publication date: July 10, 2008Inventors: Pablo Steenwinkel, Andreas Jacobus Josine Goos, Paulus Johannes Maria Honen, Gerardus Cornelis Overbeek
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Patent number: 7358294Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible polyurethane oligomer wherein said composition when drying to form a coating has an open time of at least 20 minutes, a wet-edge time of at least 10 minutes, a tack free time of <20 hours and an equilibrium viscosity of <5,000 Pa·s at a solids content when drying in the range of from 20 to 55 wt % using a shear rate in the range of from 9±0.5 to 90±5 s?1 and at 23+2° C.Type: GrantFiled: October 11, 2001Date of Patent: April 15, 2008Assignee: DSM IP Assets BVInventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, John Christopher Padget, Pablo Steenwinkel, Tom Annable, Ronald Tennebroek
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Patent number: 7217758Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible oligomer(s), a dispersed polymer(s) and optionally a non-crosslinkable water-dispersible oligomer wherein the crosslinkable oligomer(s) and non-crosslinkable oligomer(s) comply with Equation 1 as follows: - 15 × 10 4 < L = Mw × PDi 0.8 A × ( 1 + Q ) 0.5 + { ( Mw × PDi 0.8 ) / A } 0.5 × V - Y - Z < 40 × 10 4 .Type: GrantFiled: October 12, 2001Date of Patent: May 15, 2007Assignee: DSM IP Assets B.V.Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennebroek
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Patent number: 7144945Abstract: An aqueous coating composition containing a non-crosslinkable water-dispersible oligomer(s); a dispersed polymer(s); water and optionally co-solvent wherein the composition has an open time of at least 20 minutes; a wet edge time of at least 10 minutes; a tack free time of ?24 hours and an equilibrium viscosity of 5,000 Pa·s.Type: GrantFiled: March 21, 2003Date of Patent: December 5, 2006Assignee: DSM IP Assets B.V.Inventors: Emilio Martin, Jurgen Scheerder, Gerardus Cornelis Overbeek, Ronald Tennebroek, Tijs Nabuurs, Pablo Steenwinkel
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Patent number: 7094826Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible hyperbranched macromolecule(s) wherein the composition when drying has an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a tack free time ?15 hours, a dust free time ?5 hours and an equilibrium viscosity of ?5,000 Pa·s at any solids content when drying in the range of from 20 to 55% by weight using any shear rate in the range of from 9±0.5 to 90±5 s?1 and at 23±2° C.Type: GrantFiled: October 11, 2001Date of Patent: August 22, 2006Assignee: DSM IP Assets B.V.Inventors: Emilio Martin, Gerardus Cornelis Overbeek, Pablo Steenwinkel, Ronald Tennebroek
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Patent number: 7022759Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible polyester oligomer wherein said composition when drying to form a coating has the following properties: an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a thumb hard time of ?48 hours and a tack-free time ?20 hours and an equilibrium viscosity of ?5000 Pa.s at any solids content when drying in the range of from 20 to 55 wt % using a shear rate in the range of from 9±0.5 to 90±5 s?1 and at 23±2° C.Type: GrantFiled: October 11, 2001Date of Patent: April 4, 2006Assignee: Avecia BVInventors: Emilio Martin, Gerardus Cornelis Overbeek, John Christopher Padget, Pablo Steenwinkel, Petrus Johannes Maria Van Oorschot, Ronald Tennebroek
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Publication number: 20050182180Abstract: An aqueous coating composition comprising a non-crosslinkable water-dispersible oligomer(s); a dispersed polymer(s); water and optionally co-solvent wherein the composition has an open time of at least 20 min; a wet edge time of at least 10 min; a tack free time of ?24 hrs and an equilibrium viscosity of 5,000 Pa·s.Type: ApplicationFiled: March 21, 2003Publication date: August 18, 2005Applicant: AVECIA BVInventors: Emilio Martin, Jurgen Scheerder, Gerardus Overbeek, Ronald Tennebroek, Tijs Nabuurs, Pablo Steenwinkel
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Patent number: 6759472Abstract: An aqueous dispersion comprising an alkyd, vinyl polymer I, vinyl polymer II and a liquid medium where vinyl polymer I is preformed prior to incorporation into the aqueous dispersion and where vinyl polymer II is prepared in the presence of the alkyd and the vinyl polymer I.Type: GrantFiled: February 28, 2003Date of Patent: July 6, 2004Assignee: Avecia BVInventors: Gerardus Cornelis Overbeek, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennebroek
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Patent number: 6730733Abstract: Aqueous polymer composition suitable for coating which comprises the following components dispersed in water: (1) a combination of an acrylic polymer(s) A and an acrylic polymer(s) B where polymer(s) A has a Tg of not more than 30° C. and polymer(s) B has a Tg of at least 35° C., more preferably at least 45° C., which is at least 25° C. higher than the Tg of polymer(s) A, and wherein one or both of polymers A and B bear crosslinker functional groups capable of imparting ambient-temperature crosslinkability to component (1) in a coating formed from the composition via the formation of non-radically-formed covalent bonds; and (2) a self-dispersible, ionically stabilised polymer having olefinically unsaturated bond functionality capable of imparting radiation-curability (preferably uv-radiation curability) thereto in a coating formed from the composition.Type: GrantFiled: August 28, 2002Date of Patent: May 4, 2004Assignee: Avecia LimitedInventors: Gerardus Cornelis Overbeek, Pablo Steenwinkel, Ronald Tennebroek, Tijs Nabuurs
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Publication number: 20040030031Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible hyperbranched macromolecule(s) wherein the composition when drying has an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a tack free time ≦15 hours, a dust free time ≦5 hours and an equilibrium viscosity of ≦5,000 Pa.s at any solids content when drying in the range of from 20 to 55% by weight using any shear rate in the range of from 9±0.5 to 90±5s−1 and at 23≦2° C.Type: ApplicationFiled: March 31, 2003Publication date: February 12, 2004Inventors: Emillio Martin, Gerardus Cornelis Overbeek, Pablo Steenwinkel, Ronald Tennebroek
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Publication number: 20040014922Abstract: Bulk-modified potting composition based on a curable epoxy resin or on a mixture of these resins, where the resin or the mixture is composed of an epoxy resin, a hardener, where appropriate an accelerator, and also other additives, such as fillers, flexibilizers, and colorants, which potting composition (a) comprises a three-dimensionally crosslinked polysiloxane in disperse form and with a particle size in the range from 0.02 &mgr;m to 50 &mgr;m, which, where appropriate, has reactive groups which can react chemically with the epoxy resin and/or the hardener, (b) a selected linear or branched siloxane compound which has reactive groups which can react chemically with the epoxy resin and/or the hardener, and also, where appropriate, (c) a low-molecular-weight oligomeric siloxane compound, the use of the potting composition as an engineering material or as an insulating material, and the moldings and insulation produced therefrom.Type: ApplicationFiled: April 4, 2003Publication date: January 22, 2004Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, John Christopher Padget, Pablo Steenwinkel, Tom Annable, Ronald Tennebroek
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Publication number: 20030195285Abstract: An aqueous dispersion comprising an alkyd, vinyl polymer I, vinyl polymer II and a liquid medium where vinyl polymer I is preformed prior to incorporation into the aqueous dispersion and where vinyl polymer II is prepared in the presence of the alkyd and the vinyl polymer I.Type: ApplicationFiled: February 28, 2003Publication date: October 16, 2003Inventors: Gerardus Cornelis Overbeek, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennebroek
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Publication number: 20030191236Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible oligomer(s), a dispersed polymer(s) and optionally a non-crosslinkable water-dispersible oligomer wherein the crosslinkable oligomer(s) and non-crosslinkable oligomer(s) comply with Equation 1 as follows: 1 - 15 × 10 4 < L = Mw × PDi 0.8 A × ( 1 + Q ) 0.5 + { ( Mw × PDi 0.8 ) / A } 0.Type: ApplicationFiled: March 24, 2003Publication date: October 9, 2003Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennenbroek
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Publication number: 20030191231Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible polyester oligomer wherein said composition when drying to form a coating has the following properties: an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a thumb hard time of ≦48 hours and a tack-free time ≦20 hours and an equilibrium viscosity of ≦5000 Pa.s at any solids content when drying in the range of from 20 to 55 wt % using a shear rate in the range of from 9±0.5 to 90±5 s−1 and at 23±2° C.Type: ApplicationFiled: March 20, 2003Publication date: October 9, 2003Inventors: Emillio Martin, Gerardus Cornelis Overbeek, John Christhoper Padget, Pablo Steenwinkel, Petrus Johannes Maria Van Oorschot, Ronald Tennenbroek
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Publication number: 20030055171Abstract: Aqueous polymer composition suitable for coating which comprises the following components dispersed in water: (1) a combination of an acrylic polymer(s) A and an acrylic polymer(s) B where polymer(s) A has a Tg of not more than 30° C. and polymer(s) B has a Tg of at least 35° C., more preferably at least 45° C., which is at least 25° C. higher than the Tg of polymer(s) A, and wherein one or both of polymers A and B bear crosslinker functional groups capable of imparting ambient-temperature crosslinkability to component (1) in a coating formed from the composition via the formation of non-radically-formed covalent bonds; and (2) a self-dispersible, ionically stabilised polymer having olefinically unsaturated bond functionality capable of imparting radiation-curability (preferably uv-radiation curability) thereto in a coating formed from the composition.Type: ApplicationFiled: August 28, 2002Publication date: March 20, 2003Inventors: Gerardus Cornelis Overbeek, Pablo Steenwinkel, Ronald Tennebroek, Tijs Nabuurs