Patents by Inventor Daniel C. Kraiter
Daniel C. Kraiter 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: 20220178808Abstract: The present invention relates to a process and apparatus for quantifying solid residue on a sample. The process includes using a solid substrate and an aerosolizing device, adding a solid material to the aerosolizing device, forming a particle cloud of solid particles, wherein at least 1% of the mass concentration of solid particles have a mass median aerodynamic particle diameter up to about 10 ?m, thus applying the solid particles to the solid substrate(s) to form treated substrate(s), maintaining at a temperature of from about 30 to about 120° C. for at least a portion of the process, and removing a portion of solid particles from the treated substrate(s), and analyzing said at least one sample. The present invention further comprises an apparatus for applying solid particles to a substrate. The process can be used, for example, to analyze the dirt pickup resistance of a solid sample.Type: ApplicationFiled: February 26, 2020Publication date: June 9, 2022Applicant: THE CHEMOURS COMPANY FC, LLCInventors: SCOTT C. BROWN, DANIEL C. KRAITER, PETER JERNAKOFF, CARLOS ALEXIS VELEZ, MICHAEL PATRICK DIEBOLD
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Patent number: 9539557Abstract: The disclosure provides a coating composition comprising a treated inorganic core particle, having improved dispersability, prepared by a process comprising: heating a slurry comprising porous silica treated inorganic core particle and water at a temperature of at least about 90° C., more typically about 93 to about 97° C., still more typically about 95 to about 97° C.; and adding a soluble alumina source to the slurry while maintaining the pH at about 8.0 to 9.5 to form an alumina treatment on the porous silica treated inorganic core particle; wherein the treated inorganic core particle does not comprise dense silica or alumina treatments, and has silica present in the amount of about 7% to about 14% and alumina present in the amount of about 4.0% to about 8.0%; and wherein the particle to particle surface treatments are substantially homogeneous.Type: GrantFiled: October 11, 2012Date of Patent: January 10, 2017Assignee: THE CHEMOURS COMPANY TT, LLCInventors: Michael Patrick Diebold, Daniel C Kraiter, Eric Rusnak, Agingu Shih
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Patent number: 9090734Abstract: Inkjet inks are provided, relating in particular to smear resistant inkjet inks, and even more particularly to smear resistant pigmented aqueous inkjet inks comprising polyurethane dispersions and self-dispersing pigments. The polyurethane dispersions have a glass transition temperature Tg greater than ?30 ° C. to less than about 35 ° C. and have at least one of the following thermal properties: loss modulus E? of 1.7 to 5×108 pascals, and/or a peak tan delta is 0.23 to 0.65, where the glass transition temperature, peak tan delta and the loss modulus are measured by dynamic mechanical analysis on a film prepared from the polyurethane dispersion.Type: GrantFiled: November 10, 2010Date of Patent: July 28, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Daniel C. Kraiter, Jose Esteban Valentini, Xiaoqing Li
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Publication number: 20140343212Abstract: The disclosure provides a coating composition comprising a treated inorganic core particle, having improved dispersability, prepared by a process comprising: heating a slurry comprising porous silica treated inorganic core particle and water at a temperature of at least about 90° C., more typically about 93 to about 97° C., still more typically about 95 to about 97° C.; and adding a soluble alumina source to the slurry while maintaining the pH at about 8.0 to 9.5 to form an alumina treatment on the porous silica treated inorganic core particle; wherein the treated inorganic core particle does not comprise dense silica or alumina treatments, and has silica present in the amount of about 7% to about 14% and alumina present in the amount of about 4.0% to about 8.0%; and wherein the particle to particle surface treatments are substantially homogeneous.Type: ApplicationFiled: October 11, 2012Publication date: November 20, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael Patrick Diebold, Daniel C. Kraiter, Eric Rusnak, Agingu Shih
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Patent number: 8888956Abstract: The disclosure provides a paper slurry comprising a treated inorganic pigment, wherein the treated inorganic pigment comprises an inorganic pigment comprising a pigment surface area of about 30 to about 75 m2/g; wherein the pigment surface is treated with an organic treating agent comprising a polyalkanol alkane or a polyalkanol amine, present in the amount of at least about 1.5%, and wherein the treated inorganic pigment has a RHI (rat hole index) of about 7 to about 11.Type: GrantFiled: April 24, 2012Date of Patent: November 18, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Daniel C Kraiter, Michael Patrick Diebold, Timothy Allan Bell
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Publication number: 20140041549Abstract: The disclosure provides a treated inorganic pigment, typically a titanium dioxide pigment, comprising an inorganic pigment having a surface area of about 30 to about 75 m2/g; wherein the pigment surface is treated with an organic treating agent comprising a polyalkanol alkane or a polyalkanol amine, present in the amount of at least about 1.5%, based on the total weight of the treated pigment; wherein the treated inorganic pigment has a RHI (rat hole index) of about 7 to about 11. The treated inorganic pigments have better flow characteristics, and generally fewer lumps.Type: ApplicationFiled: April 24, 2012Publication date: February 13, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Daniel C. Kraiter, Timothy Allan Bell
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Publication number: 20140045958Abstract: The disclosure provides a polymer composition comprising a treated inorganic pigment, wherein the treated inorganic pigment comprises an inorganic pigment comprising a pigment surface area of about 30 to about 75 m2/g; wherein the pigment surface is treated with an organic treating agent comprising a polyalkanol alkane or a polyalkanol amine, present in the amount of at least about 1.5%, and wherein the treated inorganic pigment has a RHI (rat hole index) of about 7 to about 11.Type: ApplicationFiled: April 24, 2012Publication date: February 13, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: Daniel C. Kraiter
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Publication number: 20140034259Abstract: The disclosure provides a paper slurry comprising a treated inorganic pigment, wherein the treated inorganic pigment comprises an inorganic pigment comprising a pigment surface area of about 30 to about 75 m2/g; wherein the pigment surface is treated with an organic treating agent comprising a polyalkanol alkane or a polyalkanol amine, present in the amount of at least about 1.5%, and wherein the treated inorganic pigment has a RHI (rat hole index) of about 7 to about 11.Type: ApplicationFiled: April 24, 2012Publication date: February 6, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: Daniel C. Kraiter
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Publication number: 20140039109Abstract: The disclosure provides a coating composition comprising a treated inorganic pigment, wherein the treated inorganic pigment comprises an inorganic pigment comprising a pigment surface area of about 30 to about 75 m2/g; wherein the pigment surface is treated with an organic treating agent comprising a polyalkanol alkane or a polyalkanol amine, present in the amount of at least about 1.5%, and wherein the treated inorganic pigment has a RHI (rat hole index) of about 7 to about 11.Type: ApplicationFiled: April 24, 2012Publication date: February 6, 2014Applicant: E. I. Du Pont de Nemours and CompanyInventor: Daniel C. Kraiter
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Publication number: 20130079453Abstract: This disclosure relates to ink composition, having a viscosity of 0.02-13 Poise, comprising an inorganic pigment surface treated with alumina and at least one silicon based surface treatment selected from the group consisting of polysiloxane and polysiloxane block polymer to form a treated inorganic pigment, wherein the silicon based surface treatment is present in the amount of about 0.3 to about 1%, based on the total weight of the treated inorganic pigment; a binder resin having a glass transition temperature of less than 50° C., and comprising at least one adhesion promoting group; and a solvent based ink vehicle having the following solubility parameters using the MPa1/2 units: ?d of greater than about 15.9, a ?p of less than about 9.1 and a ?h of less than about 12.1. These inks have enhanced gloss and lower viscosity characteristics.Type: ApplicationFiled: June 28, 2011Publication date: March 28, 2013Applicant: E I DuPont Nemours and CompanyInventors: Daniel C Kraiter, Dan Qing Wu
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Publication number: 20120223999Abstract: Inkjet inks are provided, in particular to smear resistant inkjet inks, and even more particularly to smear resistant pigmented aqueous inkjet inks comprising polyurethane dispersions and self-dispersing pigments. The polyurethane dispersions have a glass transition temperature Tg greater than ?30° C. to less than about 35° C. and has at least one of the following thermal properties loss modulus E? of 1.7 to 5×108 pascals, and/or a peak tan delta is 0.23 to 0.65, where the glass transition temperature, peak tan delta and the loss modulus are measured by dynamic mechanical analysis on a film prepared from the polyurethane dispersion.Type: ApplicationFiled: November 10, 2010Publication date: September 6, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Daniel C. Kraiter, Jose Esteban Valentini, Xiaoqing Li
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Patent number: 6413306Abstract: A pigment dispersion useful for forming coating compositions containing dispersed pigment, a non-aqueous carrier liquid and an ABC-block polymer dispersant (binder); wherein the ABC block polymer has a number average molecular weight of about 5,000-20,000 and contains a polymeric A segment, a polymeric B segment and a polymeric C segment; wherein the polymeric A segment of the block polymer is of polymerized monomers selected from the following group: alkyl (meth)acrylate monomers having 1-12 carbon atoms in the alkyl group, aryl (meth)acrylate monomers, cyclo alkyl (meth)acrylate monomers or mixtures of any of the above; the polymeric B segment of the block polymer is of polymerized alkyl amino alkyl (meth)acrylate monomers having 1-4 carbon atoms in the alkyl group quaternized with an alkylating agent; and the polymeric C segment of the block polymer is of polymerized monomers of hydroxy alkyl (meth)acrylate having 1-4 carbon atoms in the alkyl group and monomers selected from the following group: alkylType: GrantFiled: October 7, 1999Date of Patent: July 2, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Daniel C. Kraiter, Beatriz E. Rodriguez-Douglas
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Patent number: 6316564Abstract: Acrylic AB block copolymers prepared by group transfer polymerization that are useful as pigment dispersants, characterized by mononuclear or dinuclear heterocyclic groups bonded to the highly polar anchoring A segment of the block copolymer backbone to facilitate attachment on a pigment surface and improve dispersant efficiency in solvent-borne paint systems.Type: GrantFiled: October 7, 1999Date of Patent: November 13, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Josef Huybrechts, Daniel C. Kraiter, Roger Vervloet