Patents by Inventor Russell J. Schwartz

Russell J. Schwartz 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).

  • Patent number: 11059978
    Abstract: It is an object of the present technology to overcome the disadvantages of conventional chlorination of a copper phthalocyanine which produces copper phthalocyanine, wherein the number of chlorines is less than than or equal to 4. The pigments described herein contain less chlorine than standard commercial grades of tetrachlorinated (or greater) copper phthalocyanine pigments while achieving similar color space, chromaticity, fastness properties, and color travel in automotive waterborne and solvent borne systems. The inventive pigments are more advantageous from a toxicity and environmental perspective, and allow the manufacturer to produce pigments in a safe and economical manner.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: July 13, 2021
    Assignee: Sun Chemical Corporation
    Inventors: Pamela M. Visintin, Russell J. Schwartz
  • Publication number: 20200109291
    Abstract: It is an object of the present technology to overcome the disadvantages of conventional chlorination of a copper phthalocyanine which produces copper phthalocyanine, wherein the number of chlorines is less than than or equal to 4. The pigments described herein contain less chlorine than standard commercial grades of tetrachlorinated (or greater) copper phthalocyanine pigments while achieving similar color space, chromaticity, fastness properties, and color travel in automotive waterborne and solvent borne systems. The inventive pigments are more advantageous from a toxicity and environmental perspective, and allow the manufacturer to produce pigments in a safe and economical manner.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Inventors: Pamela M. Visintin, Russell J. Schwartz
  • Patent number: 10544307
    Abstract: It is an object of the present technology to overcome the disadvantages of conventional chlorination of a copper phthalocyanine which produces copper phthalocyanine, wherein the number of chlorines is less than or equal to 4. The pigments described herein contain less chlorine than standard commercial grades of tetrachlorinated (or greater) copper phthalocyanine pigments while achieving similar color space, chromaticity, fastness properties, and color travel in automotive waterborne and solvent borne systems. The inventive pigments are more advantageous from a toxicity and environmental perspective, and allow the manufacturer to produce pigments in a safe and economical manner.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 28, 2020
    Assignee: Sun Chemical Corporation
    Inventors: Pamela M. Visintin, Russell J. Schwartz
  • Patent number: 10150878
    Abstract: The present invention describes a pigment dispersion and a printing ink and coating employing the pigment dispersion. The pigment dispersion includes a pigment, binder and solvent. The pigment dispersion has a mean particle size less than about 120 nm. The printing ink or coating includes the pigment dispersion in addition to a solvent. The printing ink or coating has a solid binder to pigment ratio greater than about 1.5.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 11, 2018
    Assignee: Sun Chemical Corporation
    Inventors: Darren Mark Ortalano, Laura Picraux, Lisa Clapp, Paul A. Merchak, Russell J. Schwartz
  • Publication number: 20180215921
    Abstract: It is an object of the present technology to overcome the disadvantages of conventional chlorination of a copper phthalocyanine which produces copper phthalocyanine, wherein the number of chlorines is less than or equal to 4. The pigments described herein contain less chlorine than standard commercial grades of tetrachlorinated (or greater) copper phthalocyanine pigments while achieving similar color space, chromaticity, fastness properties, and color travel in automotive waterborne and solvent borne systems. The inventive pigments are more advantageous from a toxicity and environmental perspective, and allow the manufacturer to produce pigments in a safe and economical manner.
    Type: Application
    Filed: June 2, 2016
    Publication date: August 2, 2018
    Applicant: Sun Chemical Corporation
    Inventors: Pamela M. Visintin, Russell J. Schwartz
  • Patent number: 9170419
    Abstract: The present invention provides a reversible piezochromic system that changes appearance upon application of a mechanical force. The reversible piezochromic system includes a cavity defined by a first substrate and a second substrate. The cavity includes at least a first fluid. The first fluid spreads when a mechanical force is applied to the system. The relaxation time of the first fluid depends upon the internal forces of the system. These internal forces at least include the surface energy differences between the substrates and the fluid or fluids, and the rheological properties of the fluid or fluids.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 27, 2015
    Assignee: Sun Chemical Corporation
    Inventors: Deborah Charlson, Lisa Clapp, David J. Kozak, Paul Merchak, Mark Ortalano, Russell J. Schwartz
  • Publication number: 20150252201
    Abstract: The present invention describes a pigment dispersion and a printing ink and coating employing the pigment dispersion. The pigment dispersion includes a pigment, binder and solvent. The pigment dispersion has a mean particle size less than about 120 nm. The printing ink or coating includes the pigment dispersion in addition to a solvent. The printing ink or coating has a solid binder to pigment ratio greater than about 1.5.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 10, 2015
    Inventors: Darren Mark Ortalano, Laura Picraux, Lisa Clapp, Paul A. Merchak, Russell J. Schwartz
  • Patent number: 8854714
    Abstract: Colored conductive fluids for electrowetting or electrofluidic devices, and the devices themselves, are disclosed. The colored conductive fluid includes a polar solvent and a colorant selected from a pigment and/or a dye. The polar solvent has (a) a dynamic viscosity of 0.1 cP to 1000 cP at 25° C., (b) a surface tension of 25 dynes/cm to 90 dynes/cm at 25° C., and (c) an electrowetting relative response of 20% to 80%. The colored conductive fluid itself can have an electrical conductivity from 0.1 ?S/cm to 3,000 ?S/cm and can have no greater than 500 total ppm of monatomic ions with ionic radii smaller than 2.0 ? and polyatomic ions with ionic radii smaller than 1.45 ?. The colored conductive fluid should not cause electrical breakdown of a dielectric in the device in which it is employed. An agent for controlling electrical conductivity can optionally be added to the colored conductive fluid.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: October 7, 2014
    Assignee: Sun Chemical Corporation
    Inventors: Lisa Clapp, Jason Heikenfeld, April Milarcik, Russell J. Schwartz, Stanislav G. Vilner, Manjeet Dhindsa, Stephanie Chevalliot
  • Publication number: 20130278993
    Abstract: A display pixel (10, 50). The pixel (10, 50) includes first and second substrates (12, 20, 60, 62) arranged to define a channel (16, 74). A fluid (26, 76) is located within the channel (12, 74) and includes a first colorant (36, 84) and a second colorant (38, 86). The first colorant (36, 84) has a first charge and color. The second colorant (38, 86) has a second charge that is opposite in polarity to the first change and a color that is complementary to the color of the first colorant (36, 84). A first electrode (22, 66), with a voltage source (32, 78), is operably coupled to the fluid (26, 76) and configured to moving one or both of the first and second colorants (36, 38, 84, 86) within the fluid (26, 76) and alter at least one spectral property of the pixel (10, 50).
    Type: Application
    Filed: September 1, 2011
    Publication date: October 24, 2013
    Inventors: Jason Heikenfeld, Lisa Clapp, Stanislav G. Vilner, April Milarcik, Paul A. Merchak, Russell J. Schwartz
  • Publication number: 20130017948
    Abstract: The present invention provides a reversible piezochromic system that changes appearance upon application of a mechanical force. The reversible piezochromic system includes a cavity defined by a first substrate and a second substrate. The cavity includes at least a first fluid. The first fluid spreads when a mechanical force is applied to the system. The relaxation time of the first fluid depends upon the internal forces of the system. These internal forces at least include the surface energy differences between the substrates and the fluid or fluids, and the rheological properties of the fluid or fluids.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 17, 2013
    Inventors: Deborah Charlson, Lisa Clapp, David J. Kozak, Paul Merchak, Mark Ortalano, Russell J. Schwartz
  • Publication number: 20120260825
    Abstract: Dispersants for pigments as well as dispersions containing them, and compositions such as inks and coatings containing them are described. The dispersants are the reaction product of at least one dianhydride with at least two different reactants, each of which can be an amine, alcohol, or thiol, and at least one of which is polymeric.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 18, 2012
    Inventors: Tatiana N. ROMANOVA, Russell J. SCHWARTZ
  • Publication number: 20120154896
    Abstract: Colored conductive fluids for electrowetting or electrofluidic devices, and the devices themselves, are disclosed. The colored conductive fluid includes a polar solvent and a colorant selected from a pigment and/or a dye. The polar solvent has (a) a dynamic viscosity of 0.1 cP to 1000 cP at 25° C., (b) a surface tension of 25 dynes/cm to 90 dynes/cm at 25° C., and (c) an electrowetting relative response of 20% to 80%. The colored conductive fluid itself can have an electrical conductivity from 0.1 ?S/cm to 3,000 ?S/cm and can have no greater than 500 total ppm of monatomic ions with ionic radii smaller than 2.0 ? and polyatomic ions with ionic radii smaller than 1.45 ?. The colored conductive fluid should not cause electrical breakdown of a dielectric in the device in which it is employed. An agent for controlling electrical conductivity can optionally be added to the colored conductive fluid.
    Type: Application
    Filed: August 4, 2010
    Publication date: June 21, 2012
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Lisa Clapp, Jason Heikenfeld, April Milarcik, Russell J. Schwartz, Stanislav G. Vilner, Manjeet Dhindsa, Stephanie Chevalliot
  • Publication number: 20120092753
    Abstract: Colored fluids for electrowetting, electro fluidic, or electrophoretic devices, and the devices themselves, are disclosed. The colored fluid can include a nonaqueous polar solvent having (a) a dynamic viscosity of 0.1 cP to 50 cP at 250 C, (b) a surface tension of 25 dynes/cm to 55 dynes/cm at 250 C, and (c) an electrowetting relative response of 40% to 80%. Such colored fluids further include a colorant selected from a pigment and/or a dye. In another embodiment, the colored fluid can include a non-polar solvent and an organic colorant selected from a pigment and/or a dye. Such colored fluids can be black in color and have a conductivity from 0 pS/cm to 5 pS/cm and a dielectric constant less than 3. The use of the colored fluids offers improvements in reliability, higher levels of chroma in the dispersed state, and the ability to achieve higher contrast ratios in display technologies.
    Type: Application
    Filed: March 15, 2010
    Publication date: April 19, 2012
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Jason C. Heikenfeld, Russell J. Schwartz, Lisa Clapp, April Milarcik, Stanislav G. Vilner
  • Patent number: 8029866
    Abstract: Nano-sized particles of inorganic material, e.g. zinc oxide, cerium oxide or titanium oxide, can be dispersed to form a stable dispersion in a liquid medium, by using as the dispersant a compound of formula (I): in which: R1 represents a hydrogen atom or a lower alkyl group; R2 represents a carboxy group, or a salified or esterified carboxy group; m is 1 or 2; and n is a number from 4 to 200.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: October 4, 2011
    Assignee: Sun Chemical Corporation
    Inventors: Robert Lines, Russell J. Schwartz
  • Patent number: 7823856
    Abstract: An apparatus for displaying cards and papers in the workplace includes a central shaft portion having a pair of ends, with each end including a generally semicircular ring portion adapted to capture the slots of one or more cards. The central shaft portion may be releasably captured in a channel of a universal mount or a single- or double swing arm portion. Removal of the shaft portion from the channel permits the shaft portion to be split open along a break, thereby opening the rings along breaks in the manner of a split-ring binder. Alternatively, the shaft portion may be used alone (without a mount or swing arms) to hold a quantity of cards. The swing arms may be hinged upon a base portion and attached to the chassis or peripheral surface surrounding a computer video monitor, so that the swing arms and shaft portion can swing forward and around to fit the user's viewing preferences. When affixed to a monitor, the semicircular rings facilitate easy installation and flipping of slotted cards and/or papers.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: November 2, 2010
    Assignee: Axzo Press LLC
    Inventors: Russell J. Schwartz, Michael Springer
  • Patent number: 7819968
    Abstract: A dry colorant composition is disclosed and contains (a) pigment; (b) inert carrier; and (c) rheological additive having the structure: P—(U—Y)s wherein P is the residue of an organic colorant, Y is a polyalkylene oxide or polyalkylene moiety, U is a linking moiety covalently bonding Y to P, and s is an integer from 1 to 3.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: October 26, 2010
    Assignee: Sun Chemical Corporation
    Inventors: Russell J. Schwartz, Darren Mark Ortalano, Darleen Rae Wright
  • Patent number: 7546048
    Abstract: A method for determining printing ink usage efficiency (weight of ink required to print a given area) in a printing process is disclosed where the method is based on the analysis of pigment in the printed ink.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: June 9, 2009
    Assignee: Sun Chemical Corporation
    Inventors: Russell J. Schwartz, Constantinos Nicolaou, Xin Zhang, Donald C. Henderson
  • Publication number: 20090142526
    Abstract: Dispersants for pigments as well as dispersions containing them, and compositions such as inks and coatings containing them are described. The dispersants are the reaction product of at least one dianhydride with at least two different reactants, each of which can be an amine, alcohol, or thiol, and at least one of which is polymeric.
    Type: Application
    Filed: May 25, 2007
    Publication date: June 4, 2009
    Applicant: Sun Chemical Corp
    Inventors: Tatiana N. Romanova, Russell J. Schwartz
  • Publication number: 20090142502
    Abstract: Nano-sized particles of inorganic material, e.g. zinc oxide, cerium oxide or titanium oxide, can be dispersed to form a stable dispersion in a liquid medium, by using as the dispersant a compound of formula (I): in which: R1 represents a hydrogen atom or a lower alkyl group; R2 represents a carboxy group, or a salified or esterified carboxy group; m is 1 or 2; and n is a number from 4 to 200.
    Type: Application
    Filed: May 17, 2007
    Publication date: June 4, 2009
    Applicant: Sun Chemical Corp
    Inventors: Robert Lines, Russell J. Schwartz
  • Publication number: 20080282642
    Abstract: Compositions, methods, apparatuses, kits, and combinations are described for permanently or temporarily re-designing, decorating, and/or re-coloring a surface. The compositions useful in the present disclosure include a décor product that is formulated to be applied and affixed to a surface. If desired, the décor product may be substantially removed from the surface before being affixed thereto. If a user desires to remove the décor product, the décor product is formulated to be removed by a number of methods including, for example, vacuuming, wet extraction, chemical application, and the like. If the user desires to affix the décor product to the surface in a permanent or semi-permanent manner, the décor product may be affixed to the surface by applying energy thereto in the form of, for example, by a sealant composition such as, for example, a solvent.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 20, 2008
    Inventors: Ketan N. Shah, Glenn R. Frazee, Steven H. Nahm, Russell J. Schwartz