Patents by Inventor William Brevard

William Brevard 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: 8425724
    Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: April 23, 2013
    Assignee: Kemira Oyj
    Inventors: Michael Ryan, William Brevard
  • Publication number: 20120035306
    Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Application
    Filed: October 18, 2011
    Publication date: February 9, 2012
    Applicant: KEMIRA OYJ
    Inventors: Michael Ryan, William Brevard
  • Patent number: 8097125
    Abstract: The invention relates to a composition comprising a (a) a temporary wet strength agent component capable of forming hemi-acetal bonds with the fibers of a tissue web to provide initial wet strength, subsequent rapid degradation of the initial wet strength when the tissue web contacts water; and (b) a sizing agent component capable of imparting water-repelling properties to the tissue web; such that the strength agent component and the sizing agent component are present in sufficient amounts so that when the composition is added to a tissue pulp slurry during a tissue-making process, tissue made from the tissue-making process exhibits a combination of (i) improved initial wet tensile, (ii) improved decay, and (iii) absorbency.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: January 17, 2012
    Assignee: Kemira Chemicals, Inc.
    Inventors: Michael Ryan, David Dauplaise, William Brevard
  • Patent number: 8070914
    Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 o to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: December 6, 2011
    Assignee: Kemira Oyj
    Inventors: Michael Ryan, William Brevard
  • Publication number: 20100193147
    Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 o to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Inventors: Michael Ryan, William Brevard
  • Patent number: 7736465
    Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: June 15, 2010
    Assignee: Kemira Oyj
    Inventors: Michael Ryan, William Brevard
  • Publication number: 20090114357
    Abstract: The invention relates to a composition comprising a (a) a temporary wet strength agent component capable of forming hemi-acetal bonds with the fibers of a tissue web to provide initial wet strength, subsequent rapid degradation of the initial wet strength when the tissue web contacts water; and (b) a sizing agent component capable of imparting water-repelling properties to the tissue web; such that the strength agent component and the sizing agent component are present in sufficient amounts so that when the composition is added to a tissue pulp slurry during a tissue-making process, tissue made from the tissue-making process exhibits a combination of (1) improved initial wet tensile, (ii) improved decay, and (iii) absorbency.
    Type: Application
    Filed: September 26, 2005
    Publication date: May 7, 2009
    Applicant: KEMIRA OYJ
    Inventors: Michael Ryan, David Dauplaise, William Brevard
  • Publication number: 20060249268
    Abstract: The invention relates to a composition comprising (a) a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000; (b) a cationic surfactant component; such that when the composition treats a fibrous substrate, in conjunction with a cationic strength agent, the treated fibrous substrate exhibits (i) a ratio of wet tensile strength to dry tensile strength ranging from about 1:5 to about 1:2 and (ii) an increase in a ratio of wet tensile strength to dry tensile strength of at least about 10%, as compared to when the fibrous substrate is treated with the functional promoter and without a surfactant. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Application
    Filed: February 6, 2004
    Publication date: November 9, 2006
    Inventors: Michael Ryan, William Brevard
  • Patent number: 6939443
    Abstract: The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: September 6, 2005
    Assignee: Lanxess Corporation
    Inventors: Michael Ryan, William Brevard, Sr., David Dauplaise, Michael Lostocco, Robert Proverb, David Wesley Lipp
  • Publication number: 20030234089
    Abstract: The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
    Type: Application
    Filed: June 19, 2002
    Publication date: December 25, 2003
    Inventors: Michael Ryan, William Brevard, David Dauplaise, Michael Lostocco, Robert Proverb, David Wesley Lipp
  • Patent number: 4880498
    Abstract: Dry strength resins are prepared by reacting acrylamide polymers with amino/aldehyde resin acid colloids during the formation of the colloid. The resultant copolymers are useful as dry strength resins in the formation of paper.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: November 14, 1989
    Assignee: American Cyanamid Company
    Inventors: Sewell T. Moore, William Brevard
  • Patent number: 4845148
    Abstract: Dry strength resins are prepared by reacting acrylamide polymers with amino/aldehyde resin acid colloids during the formation of the colloid. The resultant copolymers are useful as dry strength resins in the formation of paper.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: July 4, 1989
    Assignee: American Cyanamid Company
    Inventors: Sewell T. Moore, William Brevard