Patents by Inventor Edwin Currie
Edwin Currie 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: 8772373Abstract: A process for producing a coating composition includes separately chemically grafting particles with compounds having reactive groups and compounds having hydrophilic polymer chains. The hydrophilic polymer chains dissolve in water at least one temperature between 0 and 100° C. The reactive groups may react with the substrate and or react with one another to form a cross-linked coating, comprising the particles. A process for forming a coating on a substrate is also provided.Type: GrantFiled: September 10, 2013Date of Patent: July 8, 2014Assignee: DSM IP Assets B.V.Inventors: Edwin Currie, Jens Thies, Paul Holmes
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Publication number: 20140011948Abstract: A process for producing a coating composition includes separately chemically grafting particles with compounds having reactive groups and compounds having hydrophilic polymer chains. The hydrophilic polymer chains dissolve in water at at least one temperature between 0 and 100° C. The reactive groups may react with the substrate and or react with one another to form a cross-linked coating, comprising the particles. A process for forming a coating on a substrate is also provided.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: DSM IP ASSETS B.V.Inventors: Edwin CURRIE, Jens THIES, Paul HOLMES
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Patent number: 8557897Abstract: A process for producing a coating composition includes separately chemically grafting particles with compounds having reactive groups and compounds having hydrophilic polymer chains. The hydrophilic polymer chains dissolve in water at least one temperature between 0 and 100° C. The reactive groups may react with the substrate and or react with one another to form a cross-linked coating, comprising the particles. A process for forming a coating on a substrate is also provided.Type: GrantFiled: March 26, 2012Date of Patent: October 15, 2013Assignee: DSM IP Assets B.V.Inventors: Edwin Currie, Jens Thies, Paul Holmes
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Patent number: 8333831Abstract: The invention relates to a dispersion of antimony or indium doped tinoxide nanoparticles in an organic solvent, comprising a) 5-75 wt % of nanoparticles having a mean average size between 1 and 100 nm. b) a solvent comprising a hydroxyl group and an ether group. c) a water content of less then 15 wt %. d) a dispersant content of less then 0.1 wt %. The invention also relates to a method of making such a dispersion, by I. Making a mixture of an aqueous dispersion of antimony or indium doped tinoxide particles having an average size between 1 and 100 nm, a solvent comprising a hydroxyl group and an ether group, which forms an azeotrope with water, and a grafting compound. II. Heating the mixture under stirring at a temperature between 20 and 150° C. III. At least partially removing the solvent/water mixture. IV. Optionally adding more solvent. V. Repeating steps III and IV till the water content of the obtained dispersion is less then a desired value and the concentration solid is between 5 and 70 wt %.Type: GrantFiled: October 9, 2008Date of Patent: December 18, 2012Assignee: Chemip B.V.Inventors: Roelof van de Belt, Edwin Currie
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Publication number: 20120174820Abstract: A process for producing a coating composition includes separately chemically grafting particles with compounds having reactive groups and compounds having hydrophilic polymer chains. The hydrophilic polymer chains dissolve in water at at least one temperature between 0 and 100° C. The reactive groups may react with the substrate and or react with one another to form a cross-linked coating, comprising the particles. A process for forming a coating on a substrate is also provided.Type: ApplicationFiled: March 26, 2012Publication date: July 12, 2012Applicant: DSM IP ASSETS B.V.Inventors: Edwin CURRIE, Jens THIES, Paul HOLMES
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Patent number: 7892606Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.Type: GrantFiled: October 6, 2004Date of Patent: February 22, 2011Assignee: DSM IP Assets B.V.Inventors: Jens C. Thies, Edwin Currie, Guido J. W. Meijers, Keqi Gan
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Publication number: 20100311859Abstract: The invention relates to a dispersion of antimony or indium doped tinoxide nanoparticles in an organic solvent, comprising a) 5-75 wt % of nanoparticles having a mean average size between 1 and 100 nm. b) a solvent comprising a hydroxyl group and an ether group. c) a water content of less then 15 wt %. d) a dispersant content of less then 0.1 wt %. The invention also relates to a method of making such a dispersion, by I. Making a mixture of an aqueous dispersion of antimony or indium doped tinoxide particles having an average size between 1 and 100 nm, a solvent comprising a hydroxyl group and an ether group, which forms an azeotrope with water, and a grafting compound. II. Heating the mixture under stirring at a temperature between 20 and 150° C. III. At least partially removing the solvent/water mixture. IV. Optionally adding more solvent. V. Repeating steps III and IV till the water content of the obtained dispersion is less then a desired value and the concentration solid is between 5 and 70 wt %.Type: ApplicationFiled: October 9, 2008Publication date: December 9, 2010Inventors: Roelof Van De Belt, Edwin Currie
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Publication number: 20100188196Abstract: The present invention relates to A curable liquid composition comprising 0.5-20 wt % of conductive particles, 0.4-10 wt % of a curable compound having at least two polymerizable groups, 15-50 wt % of water, 5-50 wt % of a solvent D and 30-80 wt % of a solvent E, wherein solvent D is an alcohol or a keton and solvent E is an organic compound comprising one hydroxy group and one ether group, wherein the organic compound comprises between 3 and 8 carbon atoms, which forms an azeotrope with water.Type: ApplicationFiled: November 19, 2007Publication date: July 29, 2010Applicants: CHEMIP B.V., KRIYA MATERIALS B. V.Inventors: Roelof Van De Belt, Edwin Currie
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Patent number: 7704608Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.Type: GrantFiled: March 15, 2007Date of Patent: April 27, 2010Assignee: DSM IP Assets B.V.Inventors: Jens C. Thies, Edwin Currie, Guido J. W. Meijers, Keqi Gan
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Patent number: 7655298Abstract: Single layer anti-reflective hard-coat and methods of making same are disclosed and in particular comprise a structured surface, preferably a nano-structured surface. The hard-coat preferably a hardness above 0.5 GPa, more preferably above 0.7 GPa and most preferably above 1.0 GPa as measured by nano-indentation and/or a reduced tensile modulus above 3 GPa, more preferably above 8.5 GPa or 20 GPa, most preferably above 40 GPa as measured by nano-indentation and/or a scratch resistance above 5 mJ ?m-3, preferably above 15 or 30 mJ ?m-3, preferably above 60 mJ ?m-3 as measured by nano-indentation, and/or contains an amount of inorganic nano-particles from 5 to 75 weight %, preferably from 15 to 50 weight % relative to the weight of the second material present in the hard-coat. Preferably, the spatial length scale of the refractive index gradient in the single layer hard-coat is between 10 and 1000 nm; in particular between 100 and 200 nm.Type: GrantFiled: November 4, 2003Date of Patent: February 2, 2010Assignee: DSM IP Assets B.V.Inventors: Jens Christoph Thies, Edwin Currie, Guido Jozefina Wilhelmus Meijers
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Publication number: 20090191346Abstract: Single layer anti-reflective hard-coat; in particular which comprises a structured surface, preferably a nano-structured surface. The hard-coat preferably a hardness above 0.5 GPa, more preferably above 0.7 GPa and most preferably above 1.0 GPa as measured by nano-indentation and/or a reduced tensile modulus above 3 GPa, more preferably above 8.5 GPa or 20 GPa, most preferably above 40 GPa as measured by nano-indentation and/or a scratch resistance above 5 mJ ?m?3, preferably above 15 or 30 mJ ?m?3, preferably above 60 mJ ?m?3 as measured by nano-indentation, and/or contains an amount of inorganic nano-particles from 5 to 75 weight %, preferably from 15 to 50 weight % relative to the weight of the second material present in the hard-coat. Preferably, the spatial length scale of the refractive index gradient in the single layer hard-coat is between 10 and 1000 nm; in particular between 100 and 200 nm.Type: ApplicationFiled: December 31, 2008Publication date: July 30, 2009Applicant: DSM IP ASSETS B.V.Inventors: Jens Christoph Thies, Edwin Currie, Guido Jozefina Wilhelmus Meijers
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Publication number: 20090029145Abstract: The invention relates to a new process for the preparation of nano-structured and/or nano-porous surfaces, coatings having a nano-structured and/or nano-porous surface and articles comprising said coatings. The invention also relates to the use of coatings according to the invention, in particular as anti-reflective coatings. The process for the preparation of the surface nano-structured and/or nano-porous coatings is a process comprising the steps of a) applying a mixture to a substrate which mixture comprises i) reactive nano-particles ii) at least one solvent iii) optionally a compound having at least one polymerisable group, in an amount that results in an increase in the transmission of at least 0.5%, for at least part of the electromagnetic spectrum between 400 and 800 nm, after the mixture has been applied and cured on a transparent substrate, in comparison with the same substrate without a coating b) inducing crosslinking and/or polymerisation in the mixture applied to the substrate.Type: ApplicationFiled: July 30, 2008Publication date: January 29, 2009Applicant: DSM IP Assets B.V.Inventors: Jens Christoph THIES, Guido Josefina Wilhelmus Meijers, Atze Jan Nijenhuis, Edwin Currie, Christopher Tronche, John Southwell
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Publication number: 20080280138Abstract: Coating composition comprising particles grafted with reactive groups and hydrophilic polymer chains. The hydrophilic polymer chains dissolves in water at least one temperature between 0 and 100° C. The reactive group may react with the substrate and or reacts to form a cross-linked coating, comprising the particles. The invention also relates to a coating obtained from the coating composition, an object coated with the coating and the particles.Type: ApplicationFiled: July 7, 2005Publication date: November 13, 2008Inventors: Edwin Currie, Jens Thies, Paul Holmes
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Publication number: 20080248312Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.Type: ApplicationFiled: March 15, 2007Publication date: October 9, 2008Applicant: DSM IP Assets B.V.Inventors: Jens C. Thies, Edwin Currie, Guido J.W. Meijers, Keqi Gan
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Publication number: 20080047748Abstract: The invention relates to a coated object comprising a porous coating and an electrically non-insulative coating and a substrate, wherein the porous coating is on top of the non-insulative coating. The surface resistivity of the coated device is not increased or hardly increased by the presence of the porous layer in comparison to that of the single electrically non-insulative coating on the same substrate. This coated object may demonstrate anti-reflective—anti-static or anti-glare—anti-static properties.Type: ApplicationFiled: September 9, 2005Publication date: February 28, 2008Inventors: Edwin Currie, Jens Thies, Guido Meijers, Audrey Ulrich
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Publication number: 20060286305Abstract: The invention relates to hydrophobic coatings comprising reactive inorganic nano-particles, as well as their use in industrial processes. These coatings combine hydrophobic or even super-hydrophobic properties with superior mechanical properties and easy proccessability. Some super-hydrophobic coatings may even have self-cleaning properties. These hydrophobic and super-hydrophobic coatings may be applied in the food industry, exterior or interior decoration, automobile industry and display industry. Also comprised within the invention are finished articles comprising a coating of inorganic nano-particles.Type: ApplicationFiled: May 13, 2004Publication date: December 21, 2006Inventors: Jens Christoph Thies, Guido Jozefina Wilhelmus Meijers, Jonathan Andrew Pitkin, Edwin Currie, Christopher Frederic Tronche, John Edmond Southwell
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Publication number: 20060275595Abstract: The invention relates to a new process for the preparation of nano-structured and/or nano-porous surfaces, coatings having a nano-structured and/or nano-porous surface and articles comprising said coatings. The invention also relates to the use of coatings according to the invention, in particular as anti-reflective coatings. The process for the preparation of the surface nano-structured and/or nano-porous coatings is a process comprising the steps of: a) applying a mixture to a substrate which mixture comprises: i) reactive nano-particles; ii) at least one solvent; iii) optionally a compound having at least one polymerisable group, in an amount that results in an increase in the transmission of at least 0.5%, for at least part of the electromagnetic spectrum between 400 and 800 nm, after the mixture has been applied and cured on a transparent substrate, in comparison with the same substrate without a coating; b) inducing crosslinking and/or polymerisation in the mixture applied to the substrate.Type: ApplicationFiled: May 13, 2004Publication date: December 7, 2006Inventors: Jens Christoph Thies, Guido Meijers, Atze Nijenhuis, Edwin Currie, Christopher Tronche, John Southwell
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Publication number: 20060019114Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.Type: ApplicationFiled: October 6, 2004Publication date: January 26, 2006Inventors: Jens Thies, Edwin Currie, Guido Meijers, Keqi Gan
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Publication number: 20060014012Abstract: Single layer anti-reflective hard-coat and methods of making same are disclosed and in particular comprise a structured surface, preferably a nano-structured surface. The hard-coat preferably a hardness above 0.5 GPa, more preferably above 0.7 GPa and most preferably above 1.0 GPa as measured by nano-indentation and/or a reduced tensile modulus above 3 GPa, more preferably above 8.5 GPa or 20 GPa, most preferably above 40 GPa as measured by nano-indentation and/or a scratch resistance above 5 mJ ?m?3, preferably above 15 or 30 mJ ?m?3, preferably above 60 mJ ?m?3 as measured by nano-indentation, and/or contains an amount of inorganic nano-particles from 5 to 75 weight %, preferably from 15 to 50 weight % relative to the weight of the second material present in the hard-coat. Preferably, the spatial length scale of the refractive index gradient in the single layer hard-coat is between 10 and 1000 nm; in particular between 100 and 200 nm.Type: ApplicationFiled: November 4, 2003Publication date: January 19, 2006Inventors: Jens Thies, Edwin Currie, Guido Jozefina Meijers