Patents by Inventor Patrick F. McIntyre
Patrick F. McIntyre 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: 20120232195Abstract: A process for preparing a crossed-linked colorant dispersion is provided in which a partially neutralized dispersant polymer having a cross-linkable moiety is used as a dispersant for a colorant by reacting the cross-linkable moiety on the dispersant with a cross-linking agent.Type: ApplicationFiled: November 19, 2010Publication date: September 13, 2012Inventors: Patrick F. Mcintyre, John C. Hornby, Christian Jackson, Xiaoqing Li, James A. Silver, Tristan Williams
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Publication number: 20120105558Abstract: The present disclosure provides an aqueous ink jet ink comprising an ink vehicle and an aqueous dispersion, wherein the aqueous dispersion comprises a solid particle and a polymeric dispersant that has been crosslinked, wherein the polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, and comprises at least 50% by weight of a monomer, having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2; wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 about 20; and the B block is a segment comprising an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant comprises a crosslinkable moiety; wherein the crosslinkable moiety is crosslinked with a crosslinking agent selected from the group consisting of epoxide, carbodiimide, oxazoline, isocyanate, and silane; and wherein the aqueous dispersion has a pH of at least about 8.0.Type: ApplicationFiled: July 14, 2010Publication date: May 3, 2012Applicant: E. I. Du Pont Nemours and CompanyInventors: Xiaoqing Li, C. Chad Roberts, Patrick F. McIntyre
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Publication number: 20120098910Abstract: The present disclosure provides method of ink jet printing onto a substrate comprising, in any workable order, the steps of: (a) providing an ink jet printer that is responsive to digital data signals; (b) loading the printer with a substrate to be printed; (c) loading the printer with an aqueous ink jet ink comprising an ink vehicle and an aqueous dispersion, wherein the aqueous dispersion comprises a solid particle and a polymeric dispersant that has been crosslinked, wherein the polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, and comprises at least 50% by weight of a monomer, having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2; wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 about 20; and the B block is a segment comprising an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant comprises a crosslinkable moiety; whereType: ApplicationFiled: July 14, 2010Publication date: April 26, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Xiaoqing Li, C. Chad Roberts, Patrick F. Mcintyre
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Publication number: 20120101217Abstract: The present disclosure provides an aqueous dispersion comprising a solid particle and a polymeric dispersant, wherein the polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, and comprises at least 50% by weight of a monomer having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2; wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 about 20; and the B block is a segment comprising an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant comprises a crosslinkable moiety; wherein the crosslinkable moiety is crosslinked with a crosslinking agent selected from the group consisting of epoxide, carbodiimide, oxazoline, isocyanate, and silane; and wherein the aqueous dispersion has a pH of at least about 8.0.Type: ApplicationFiled: July 14, 2010Publication date: April 26, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Xiaoqing Li, C. Chad Roberts, Patrick F. McIntyre
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Publication number: 20120035317Abstract: The present invention relates to urea-terminated polyurethanes dispersants based on diols and polyether diols, aqueous dispersions of such polyurethanes, the manufacture of the urea terminated polyurethane dispersions and inks containing pigments and/or disperse dyes dispersed with these urea terminated polyurethane dispersants. The urea termination can have nonionic hydrophilic substituents.Type: ApplicationFiled: December 4, 2008Publication date: February 9, 2012Inventors: C. Chad Roberts, Patrick F. McIntyre, Michael Stephen Wolfe, Xiaoqing Li, Hari Babu Sunkara
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Publication number: 20110242154Abstract: The present disclosure provides a ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a colorant, more typically a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and the B block is free of an amine monomer. The disclosure further pertains to an ink set comprising this ink jet ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH modifying agent capable of destabilizing the colorant containing dispersion of the first ink.Type: ApplicationFiled: December 12, 2008Publication date: October 6, 2011Applicant: E.I. Du Pont De Nemours and CompanyInventors: C. Chad Roberts, Robert Paul Held, Patrick F. Mcintyre, Michael Stephen Wolfe
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Publication number: 20110245410Abstract: The disclosure provides an aqueous dispersion and ink jet inks comprising a colorant and an amphoteric polyurethane dispersant, wherein the amphoteric polyurethane dispersant comprises a reaction product of at least one basic amine urethane monomer, at least one acidic urethane monomer, and at least one urethane monomer comprising two or more isocyanates having improved bleed control, and optical density/chroma.Type: ApplicationFiled: December 11, 2009Publication date: October 6, 2011Applicant: E. I. DuPont De Nemours and CompanyInventors: C. Chad Roberts, Patrick F. Mcintyre, Michael Stephen Wolfe
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Publication number: 20110199420Abstract: The present disclosure provides a aqueous colorant dispersion comprising a colorant and a polymeric dispersant, wherein the polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment having a block size of about 5 to about 18 units, is substantially free of hydroxyethylmethacrylate, and comprises at least 50% by weight of a monomer, having the following structure: CH2?CRC(O)O(CHR1CH2O)nR2, wherein R and R1 are H, or methyl; R2 is alkyl of 1-4 carbon atoms or phenyl; and n is about 1 to about 20; and the B block is a segment comprising an ionic monomer and at least one hydrophobic monomer; and wherein the dispersant is neutralized. The disclosure further pertains to an aqueous ink jet ink comprising this aqueous colorant dispersion. Still further, the disclosure pertains to a method of printing that provides images with the requisite optical density and chroma needed for emerging ink jet applications.Type: ApplicationFiled: November 20, 2009Publication date: August 18, 2011Applicant: E.I. DuPont De Nemours and CompanyInventors: C. Chad Roberts, Robert Paul Held, Patrick F. Mcintyre, Christian Jackson
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Patent number: 7932306Abstract: The present disclosure provides a black ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and with the proviso that the acid number is greater that the amine number, and the B block does not contain an amine monomer. The disclosure further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH capable of destabilizing the carbon black dispersion.Type: GrantFiled: December 4, 2008Date of Patent: April 26, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Paul Held, C. Chad Roberts, Patrick F. McIntyre
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Publication number: 20110065861Abstract: The present invention relates to urea terminated polyurethane dispersants based on certain diols which have grafted alkyl, aryl or fluoroalkyl substituents, aqueous dispersions of such polyurethanes, the manufacture of the urea terminated polyurethane dispersions and inks containing pigments and/or disperse dyes dispersed with these urea terminated polyurethane dispersants.Type: ApplicationFiled: May 22, 2009Publication date: March 17, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Xiaoqing Li, Tyau-Jeen Lin, Patrick F. Mcintyre
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Publication number: 20110060102Abstract: The present invention relates to urea terminated polyurethane dispersants based on selected diols, aqueous dispersions of such polyurethanes, the manufacture of the urea terminated polyurethane dispersions, and inks containing pigments and/or disperse dyes dispersed with these urea terminated polyurethane dispersants. The urea termination can have nonionic hydrophilic substituents.Type: ApplicationFiled: May 22, 2009Publication date: March 10, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Xiaoqing Li, Tyau-Jeen Lin, Patrick F. McIntyre
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Publication number: 20110039028Abstract: The invention provides an ink for inkjet printing, comprising a self-dispersing pigment colorant and certain urea terminated polyurethanes derived from alpha-omega diols and/or polyetherdiols which enhances print quality especially gloss and distinctness of image without compromising jetting performance.Type: ApplicationFiled: May 22, 2009Publication date: February 17, 2011Applicant: E,I. DU PONT DE NEMOURS AND COMPANYInventors: Harry Joseph Spinelli, C. Chad Roberts, Patrick F. Mcintyre, Michael Stephen Wolfe, Waifong Liew Anton
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Publication number: 20110003931Abstract: An encapsulated titanium dioxide comprising an intimate mixture of A) crude titanium dioxide in finely divided particulate form, and B) from 0.1 wt % to 10 wt %, based on the wt % of titanium dioxide of at least one (meth)acrylic polymer and method of preparation.Type: ApplicationFiled: December 18, 2009Publication date: January 6, 2011Inventors: Lech Wilczek, Patrick F. McIntyre, Karyn B. Visscher, Ayumu Yokoyama, Owen H. Decker
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Publication number: 20100331456Abstract: A powder coating composition comprising an intimate mixture of at least one film forming resin binder and from 0.1 to 50 wt. %, based on the total weight of the powder coating composition, of at least one modified encapsulated titanium dioxide.Type: ApplicationFiled: December 18, 2009Publication date: December 30, 2010Inventors: Lech Wilczek, Patrick F. McIntyre, Karyn B. Visscher, Ayumu Yokoyama, Owen H. Decker
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Publication number: 20100143590Abstract: The present disclosure provides a black ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and with the proviso that the acid number is greater that the amine number, and the B block does not contain an amine monomer. The disclosure further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH capable of destabilizing the carbon black dispersion.Type: ApplicationFiled: December 4, 2008Publication date: June 10, 2010Inventors: Robert Paul Held, C. Chad Roberts, Patrick F. McIntyre
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Patent number: 7635504Abstract: The present invention pertains to a radiation-curable white inkjet ink and, more particularly, to a radiation-curable inkjet white ink comprising a specified titanium dioxide with at least two dispersants. The first is an acidic polyester dispersant and the second is an acrylic structured copolymer dispersant. Ink sets containing the white inks are also described.Type: GrantFiled: May 3, 2007Date of Patent: December 22, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Hamdy A. Elwakil, Patrick F. McIntyre
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Publication number: 20090253853Abstract: A titanium dioxide slurry comprises (a) a titanium dioxide pigment; (b) a combination of dispersants comprising: (1) a graft copolymer having a weight average molecular weight of about 4,000 to 100,000, comprising about 90 to 50% by weight of a polymeric backbone and correspondingly about 10 to 50% by weight of macromonomer side chains attached to the backbone, the polymeric backbone and macromonomer side chains comprising 100 wt % of the graft copolymer, wherein (i) the polymeric backbone is hydrophobic in comparison to the macromonomer side chains and comprises one or more polymerized ethylenically unsaturated hydrophobic monomers and, optionally, up to about 20% by weight, based on the weight of the graft copolymer, of polymerized ethylenically unsaturated acid monomers; and (ii) each of the macromonomer side chains individually is a hydrophilic polymer containing acid groups attached to the polymeric backbone at a single terminal point and (A) has a weight average molecular weight of about 1,000 to 30,000Type: ApplicationFiled: June 17, 2009Publication date: October 8, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: TYAU-JEEN LIN, Patrick F. Mcintyre
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Patent number: 7592378Abstract: The present invention pertains to an aqueous inkjet ink made from certain aqueous titanium dioxide slurries, and an associated inkjet ink set for inkjet printing. The invention also pertains to a method of inkjet printing with the ink and ink set. The use of the specific titanium dioxide slurries described herein result in inkjet inks having improved stability and better anti-settling performance with less pigment agglomeration and flocculation over time.Type: GrantFiled: January 28, 2008Date of Patent: September 22, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Tyau-Jeen Lin, Patrick F. McIntyre, Hamdy A. Elwakil
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Patent number: 7476272Abstract: The present invention relates to Aluminum trihydrate slurries comprising aluminum trihydrate particles, an acrylic dispersant, citric acid, synthetic hectorite clay, optionally a compound to adjust pH, a biocide and water. These slurries may be mixed with titanium dioxide slurries to produce a stable slurry blends useful in paper and paper-board applications.Type: GrantFiled: November 29, 2006Date of Patent: January 13, 2009Assignee: E.I. Du Pont de Nemours & CompanyInventors: Maureen A. Defeo, Glenn Richard Evers, Patrick F. McIntyre
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Publication number: 20080255281Abstract: A titanium dioxide slurry comprises (a) a titanium dioxide pigment; (b) a combination of dispersants comprising: (1) a graft copolymer having a weight average molecular weight of about 4,000 to 100,000, comprising about 90 to 50% by weight of a polymeric backbone and correspondingly about 10 to 50% by weight of macromonomer side chains attached to the backbone, the polymeric backbone and macromonomer side chains comprising 100 wt % of the graft copolymer, wherein (i) the polymeric backbone is hydrophobic in comparison to the macromonomer side chains and comprises one or more polymerized ethylenically unsaturated hydrophobic monomers and, optionally, up to about 20% by weight, based on the weight of the graft copolymer, of polymerized ethylenically unsaturated acid monomers; and (ii) each of the macromonomer side chains individually is a hydrophilic polymer containing acid groups attached to the polymeric backbone at a single terminal point and (A) has a weight average molecular weight of about 1,000 to 30,000Type: ApplicationFiled: May 15, 2008Publication date: October 16, 2008Inventors: Tyau-Jeen Lin, Patrick F. McIntyre