Patents by Inventor Craig Waldron

Craig Waldron 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: 11377799
    Abstract: The present disclosure is generally directed to a mold inhibiting composition. The mold inhibiting composition can be used to treat various different substrates, including building material products, such as facing layers for wallboard. In general, any suitable paper product may be treated with the composition. The composition contains a mold inhibiting agent in combination with a defoamer. The mold inhibiting agent may comprise a pyrithione. The defoamer, on the other hand, may comprise an oil based defoamer containing metal oxide particles, such as silica particles. The mold inhibiting composition can be combined with a water repellent and applied to a substrate without excessive amounts of foam or froth being formed. The defoamer is selected so as to not interfere with the resulting water absorption properties of the product.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: July 5, 2022
    Assignee: ARXADA, LLC
    Inventors: Craig Waldron, Patrick Flaherty, Tyler Corse
  • Publication number: 20210180257
    Abstract: The present disclosure is generally directed to a mold inhibiting composition. The mold inhibiting composition can be used to treat various different substrates, including building material products, such as facing layers for wallboard. In general, any suitable paper product may be treated with the composition. The composition contains a mold inhibiting agent in combination with a defoamer. The mold inhibiting agent may comprise a pyrithione. The defoamer, on the other hand, may comprise an oil based defoamer containing metal oxide particles, such as silica particles. The mold inhibiting composition can be combined with a water repellent and applied to a substrate without excessive amounts of foam or froth being formed. The defoamer is selected so as to not interfere with the resulting water absorption properties of the product.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 17, 2021
    Inventors: Craig Waldron, Patrick Flaherty, Tyler Corse
  • Publication number: 20180066400
    Abstract: The present disclosure is generally directed to a mold inhibiting composition. The mold inhibiting composition can be used to treat various different substrates, including building material products, such as facing layers for wallboard. In general, any suitable paper product may be treated with the composition. The composition contains a mold inhibiting agent in combination with a defoamer. The mold inhibiting agent may comprise a pyrithione. The defoamer, on the other hand, may comprise an oil based defoamer containing metal oxide particles, such as silica particles. The mold inhibiting composition can be combined with a water repellent and applied to a substrate without excessive amounts of foam or froth being formed. The defoamer is selected so as to not interfere with the resulting water absorption properties of the product.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 8, 2018
    Inventors: Craig Waldron, Patrick Flaherty, Tyler Corse
  • Patent number: 8481523
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: July 9, 2013
    Assignee: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Robert Martin, Tina Williams
  • Patent number: 8372829
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: February 12, 2013
    Assignee: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Robert Martin, Tina Williams
  • Patent number: 8158158
    Abstract: A biocidal composition is disclosed comprising composite particles, each of said composite particles containing a shell and a core, said core comprising a metal or a metal-containing compound wherein the metal is a moiety selected from the group consisting of zinc, copper, bismuth, silver, zirconium, and combinations thereof said shell comprising a pyrithione adduct comprising the reaction product of pyrithione with a portion of said core metal or metal compound. In one aspect, an anti-fouling composition is disclosed comprising (a) an anti-soft-fouling effective amount of copper pyrithione; and (b) an anti-hard-fouling effective amount of a copper-containing salt, or oxide or hydroxide thereof. The present invention also relates to a method of making an anti-fouling composition comprising particles of copper pyrithione and a copper-containing salt that is effective against hard-fouling and soft-fouling organisms.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: April 17, 2012
    Assignee: Arch Chemicals, Inc.
    Inventors: David F. Gavin, Craig Waldron, Robert J. Martin, George A. Polson
  • Publication number: 20110143153
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Application
    Filed: January 6, 2011
    Publication date: June 16, 2011
    Inventors: Craig Waldron, Robert Martin, Gareth Williams, Tina Williams
  • Publication number: 20110144232
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Application
    Filed: January 7, 2011
    Publication date: June 16, 2011
    Inventors: Craig Waldron, Robert Martin, Gareth Williams, Tina Williams
  • Patent number: 7942958
    Abstract: A biocidal composition is disclosed comprising composite particles, each of the composite particles containing a shell and a core, the core comprising a metal or a metal-containing compound wherein the metal is a moiety selected from the group consisting of zinc, copper, bismuth, silver, zirconium, and combinations thereof, the shell comprising a pyrithione adduct comprising the reaction product of pyrithione with a portion of the core metal or metal compound. In one aspect, an anti-fouling composition is disclosed comprising (a) an anti-soft-fouling effective amount of copper pyrithione; and (b) an anti-hard-fouling effective amount of a copper-containing salt, or oxide or hydroxide thereof. The present invention also relates to a method of making an antifouling composition comprising particles of copper pyrithione and a copper-containing salt that is effective against hard-fouling and soft-fouling organisms.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: May 17, 2011
    Assignee: Arch Chemicals, Inc.
    Inventors: David F. Gavin, Craig Waldron, Robert J. Martin, George A. Polson
  • Publication number: 20110104375
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Application
    Filed: December 22, 2010
    Publication date: May 5, 2011
    Inventors: Craig Waldron, Robert Martin, Gareth Williams, Tina Williams
  • Patent number: 7893047
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: February 22, 2011
    Assignee: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Robert Martin, Gareth Williams, Tina Williams, legal representative
  • Patent number: 7481873
    Abstract: Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 microns and a median particle size of from 0.2 to less than 0.5 microns. The dispersion is suitably employed as an antifouling additive for marine paints without risking worker exposure to copper pyrithione dust. Paints containing the small particle copper pyrithione exhibit improved antifouling performance in cold water, as compared to paint containing larger particle copper pyrithione.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: January 27, 2009
    Assignee: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Robert J. Martin, Sonia R. Oberson, Christopher J. Bannon
  • Patent number: 7435771
    Abstract: The present invention describes a composition for stabilizing a paint or paint base composition against viscosity change, gelation and agglomeration during formulation and storage. Illustratively, an antifouling paint or paint base composition is disclosed that contains a hydrolysable acrylate resin such as copper acrylate, zinc acrylate, or silyl acrylate, a metal salt of pyrithione, cuprous oxide, and a primary stabilizing agent selected from the group consisting of benzoic acid, hydroxypyridine, metal salts of benzoic acid, and hydroxypyridine, with the proviso that said composition is essentially free of 2-hydroxypyridine N-oxide, and is also essentially free of the sodium, zinc and copper salts of 2-hydroxypyridine-N-oxide.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: October 14, 2008
    Assignee: Arch Chemicals, Inc.
    Inventors: Deqing Lei, Craig Waldron, Micheal Davis
  • Publication number: 20070207178
    Abstract: The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Inventors: Craig Waldron, Robert Martin, Gareth Williams, Tina Williams
  • Publication number: 20070117895
    Abstract: The present invention describes a composition for stabilizing a paint or paint base composition against viscosity change, gelation and agglomeration during formulation and storage. Illustratively, an antifouling paint or paint base composition is disclosed that contains a hydrolysable acrylate resin such as copper acrylate, zinc acrylate, or silyl acrylate, a metal salt of pyrithione, cuprous oxide, and a primary stabilizing agent selected from the group consisting of benzoic acid, hydroxypyridine, metal salts of benzoic acid, and hydroxypyridine, with the proviso that said composition is essentially free of 2-hydroxypyridine N-oxide, and is also essentially free of the sodium, zinc and copper salts of 2-hydroxypyridine-N-oxide.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 24, 2007
    Inventors: Deqing Lei, Craig Waldron, Micheal Davis
  • Publication number: 20050118134
    Abstract: Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 microns and a median particle size of from 0.2 to less than 0.5 microns. The dispersion is suitably employed as an antifouling additive for marine paints without risking worker exposure to copper pyrithione dust. Paints containing the small particle copper pyrithione exhibit improved antifouling performance in cold water, as compared to paint containing larger particle copper pyrithione.
    Type: Application
    Filed: November 22, 2004
    Publication date: June 2, 2005
    Inventors: Craig Waldron, Robert Martin, Sonia Oberson, Christopher Bannon
  • Patent number: 6821326
    Abstract: Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 microns and a median particle size of less than 3 microns. The dispersion is suitably employed as an antifouling additive for marine paints without risking worker exposure to copper pyrithione dust. Paints containing the small particle copper pyrithione exhibit improved antifouling performance in cold water, as compared to paint containing larger particle copper pyrithione.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 23, 2004
    Assignee: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Robert J. Martin, Sonia R. Oberson, Christopher J. Bannon
  • Publication number: 20040118319
    Abstract: Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 microns and a median particle size of less than 3 microns. The dispersion is suitably employed as an antifouling additive for marine paints without risking worker exposure to copper pyrithione dust. Paints containing the small particle copper pyrithione exhibit improved antifouling performance in cold water, as compared to paint containing larger particle copper pyrithione.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Applicant: Arch Chemicals, Inc., a corporation of the Commonwealth of Virginia
    Inventors: Craig Waldron, Robert J. Martin, Sonia R. Oberson, Christopher J. Bannon
  • Patent number: 6627665
    Abstract: The present invention is directed to a non-dusting copper pyrithione dispersion, comprising an admixture of: from about 20 to about 99 wt % of copper pyrithione; from about 0.05 to about 30 wt % of a dust-inhibiting agent selected from the group consisting of surfactants, polymer resins, binders, and combinations thereof; and from about 0.05 wt. % to about 80 wt % of a dispersant; wherein all weight percents are based on the total weight of the dispersion.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: September 30, 2003
    Assignee: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Patrick Hobbs
  • Publication number: 20030073749
    Abstract: The present invention is directed to a non-dusting copper pyrithione dispersion, comprising an admixture of: from about 20 to about 99 wt % of copper pyrithione; from about 0.05 to about 30 wt % of a dust-inhibiting agent selected from the group consisting of surfactants, polymer resins, binders, and combinations thereof; and from about 0.05 wt. % to about 80 wt % of a dispersant; wherein all weight percents are based on the total weight of the dispersion.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 17, 2003
    Applicant: Arch Chemicals, Inc.
    Inventors: Craig Waldron, Patrick Hobbs