Patents by Inventor Christopher Barcomb

Christopher Barcomb 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: 8193104
    Abstract: The present invention is directed to a cationic polymer emulsion binder that may be combined with a cationic active ingredient and used as a non-woven binder. This combination of cationic binder and cationic active ingredient may occur as a mixture of a cationic binder and at least one cationic active ingredient, which is then applied to loose fibers to form a non-woven; or the combination may occur after a non-woven is formed using a cationic binder, and said non-woven is then contacted with a cationic active ingredient. Non-woven wipes of the invention retain far less cationic active ingredients during use, resulting in less waste and less use of the active ingredients for the same effect as wipes made with anionic or non-ionic binders.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: June 5, 2012
    Assignee: Celanese International Corporation
    Inventors: John C. Parsons, James L. Walker, Christopher Barcomb
  • Patent number: 7582699
    Abstract: The present invention is directed to a fibrous substrate made of chemically bonded fibers, where the fibers are bound with a polymeric binder in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and where the binder is characterized as having a wet tensile strength of greater than 4500 grams per inch (g/in) when measured at a 20 percent add-on on Whatman #4 CHR chromatography paper which is drum dried for 90 seconds at 210 to 215° F. and cured for 2 minutes at 300 to 325° F. Preferably the level of free formaldehyde in the fibrous substrate is less than 15 ppm. The emulsion binders of the invention may be used to bind fibers together in a substrate; may be used to bind pigment, colors or other substances to a substrate; may be used as a backing material; or may be used to finish or surface-treat a substrate.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: September 1, 2009
    Assignee: Celanese International Corporation
    Inventors: James L. Walker, Pavneet Mumick, John C. Parsons, David R. Nass, Christopher Barcomb
  • Publication number: 20060128242
    Abstract: The present invention is directed to a fibrous substrate made of chemically bonded fibers, where the fibers are bound with a polymeric binder in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and where the binder is characterized as having a wet tensile strength of greater than 4500 grams per inch (g/in) when measured at a 20 percent add-on on Whatman #4 CHR chromatography paper which is drum dried for 90 seconds at 210 to 215° F. and cured for 2 minutes at 300 to 325° F. Preferably the level of free formaldehyde in the fibrous substrate is less than 15 ppm. The emulsion binders of the invention may be used to bind fibers together in a substrate; may be used to bind pigment, colors or other substances to a substrate; may be used as a backing material; or may be used to finish or surface-treat a substrate.
    Type: Application
    Filed: January 31, 2006
    Publication date: June 15, 2006
    Inventors: James Walker, Pavneet Mumick, John Parsons, David Nass, Christopher Barcomb
  • Patent number: 7056847
    Abstract: The present invention is directed to a fibrous substrate made of chemically bonded fibers, where the fibers are bound with a polymeric binder in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and where the binder is characterized as having a wet tensile strength of greater than 4500 grams per inch (g/in) when measured at a 20 percent add-on on Whatman #4 CHR chromatography paper which is drum dried for 90 seconds at 210 to 215° F. and cured for 2 minutes at 300 to 325° F. Preferably the level of free formaldehyde in the fibrous substrate is less than 15 ppm. The emulsion binders of the invention may be used to bind fibers together in a substrate; may be used to bind pigment, colors or other substances to a substrate; may be used as a backing material; or may be used to finish or surface-treat a substrate.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 6, 2006
    Assignee: Celanese International Corporation
    Inventors: James L. Walker, Pavneet Mumick, John C. Parsons, David R. Nass, Christopher Barcomb
  • Publication number: 20050239356
    Abstract: The present invention is directed to a cationic polymer emulsion binder that may be combined with a cationic active ingredient and used as a non-woven binder. This combination of cationic binder and cationic active ingredient may occur as a mixture of a cationic binder and at least one cationic active ingredient, which is then applied to loose fibers to form a non-woven; or the combination may occur after a non-woven is formed using a cationic binder, and said non-woven is then contacted with a cationic active ingredient. Non-woven wipes of the invention retain far less cationic active ingredients during use, resulting in less waste and less use of the active ingredients for the same effect as wipes made with anionic or non-ionic binders.
    Type: Application
    Filed: November 25, 2002
    Publication date: October 27, 2005
    Applicant: National Starch and Chemical Investment Holding Corporation
    Inventors: John Parsons, James Walker, Christopher Barcomb
  • Patent number: 6713156
    Abstract: The present invention is directed to an abrasive substrate formed by the application of a polymer composition to the surface of the substrate. The polymer composition is applied to the substrate in a manner producing an uneven, structured coating on the substrate, resulting in a surface having abrasive properties. The invention is especially useful in producing abrasive non-woven materials useful as wet and dry wipes.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: March 30, 2004
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Steven Pauls, Rajeev Farwaha, Christopher Barcomb
  • Publication number: 20030176133
    Abstract: The present invention is directed to a fibrous substrate made of chemically bonded fibers, where the fibers are bound with a polymeric binder in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and where the binder is characterized as having a wet tensile strength of greater than 4500 grams per inch (g/in) when measured at a 20 percent add-on on Whatman #4 CHR chromatography paper which is drum dried for 90 seconds at 210 to 215° F. and cured for 2 minutes at 300 to 325° F. Preferably the level of free formaldehyde in the fibrous substrate is less than 15 ppm. The emulsion binders of the invention may be used to bind fibers together in a substrate; may be used to bind pigment, colors or other substances to a substrate; may be used as a backing material; or may be used to finish or surface-treat a substrate.
    Type: Application
    Filed: December 20, 2002
    Publication date: September 18, 2003
    Inventors: James L. Walker, Pavneet S. Mumick, John C. Parsons, David R. Nass, Christopher Barcomb