Patents by Inventor William B. Griffith

William B. Griffith 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).

  • Publication number: 20160009964
    Abstract: Provided is a pressure sensitive adhesive article comprising (a) a substrate (Sa), (b) in contact with said substrate (Sa), a layer (Lb) of a tackifier-free composition (Cb) that comprises one or more acrylic polymer (POLb) having Tg of ?10° C. or lower, and (c) in contact with said layer (Lb), a layer (Lc) of a tackifier-containing composition (Cc) that comprises one or more tackifier and one or more hydrocarbon polymer (POLc) having Tg of ?10° C. Also provided is a bonded article made by a process comprising contacting a substrate (Sd) with such a pressure sensitive adhesive article, wherein said substrate (Sd) is in contact with said layer (Lc).
    Type: Application
    Filed: March 3, 2014
    Publication date: January 14, 2016
    Inventors: William B. Griffith, Jr., Melissa Lane
  • Publication number: 20150368521
    Abstract: A composition having three components. The first component is from 20 to 80 wt % of a styrene-diene block copolymer having from 10-30 wt % polymerized units of styrene, wherein the block copolymer is present as a dispersion of copolymer in water, and the dispersion contains less than 5 wt % organic solvent based on total dispersion weight. The second component is from 0.5 to 20 wt % of a plasticizer. The third component is from 20 to 80 wt % of a tackifier.
    Type: Application
    Filed: December 2, 2013
    Publication date: December 24, 2015
    Inventors: Melinda L. Einsla, William B. Griffith, Jr., Daniel W. Himmelberger, Melissa Lane, David L. Malotky
  • Patent number: 9163165
    Abstract: This invention relates to a primerless removable or repositionable pressure sensitive tape or label comprises a porous substrate material, and a pressure sensitive adhesive (PSA) composition comprising (i) 10 to 90 wt. %, based on the combined weight of parts (i) and (ii), of one or more aqueous adhesive (co)polymer, and (ii) 90 to 10 wt. %, based on the combined weight of parts (i) and (ii), of one of more water-dispersed thermoplastic material, wherein the water-dispersed thermoplastic material is incompatible with the aqueous adhesive (co)polymer.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: October 20, 2015
    Assignee: Rohm and Haas Company
    Inventor: William B. Griffith, Jr.
  • Publication number: 20120295106
    Abstract: A polyvinyl chloride(“PVC”) structure including from 5% to 40% by weight, based on the weight of PVC, DINCH (1,2-cyclohexane dicarboxylic acid di-isononyl ester) plasticizer coated with a certain crosslinked polymeric coating and, disposed on the crosslinked coating, a substantially uncrosslinked pressure sensitive adhesive and a method for forming the structure is provided.
    Type: Application
    Filed: August 2, 2012
    Publication date: November 22, 2012
    Inventors: Natacha Cisowski, William B. Griffith, JR., Isabelle Uhl
  • Patent number: 8101240
    Abstract: A release coating having improved stability under aging conditions of heat and humidity is described whose release force can be altered by varying the amount of multi-lobe emulsion polymers relative to release agent.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: January 24, 2012
    Assignee: Rohm and Haas Company
    Inventors: William B. Griffith, Nader Nassif Kamel, Don Gordon Pierson
  • Publication number: 20110275748
    Abstract: A method for adhering a polyolefin roofing membrane to a roof. The method applies to the polyolefin roofing membrane an adhesive having two components. The first component is a polymer having at least 90 wt % polymerized residues of C1-C18 alkyl (meth)acrylates and C1-C18 dialkylmaleates and having a Tg no greater than ?15° C. The second component is a tackifier having an acid number no greater than 50.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 10, 2011
    Inventors: William B. Griffith, Don Gordon Pierson, Thomas J. Reffle
  • Publication number: 20080124538
    Abstract: A low noise adhesive product and a process for making such is disclosed. This adhesive product is useful as packaging tape.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 29, 2008
    Inventors: William B. Griffith, Robert V. Slone, Isabelle Uhl
  • Publication number: 20080118748
    Abstract: A low noise adhesive product and a process for making such is disclosed. This adhesive product is useful as packaging tape.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 22, 2008
    Inventors: William B. Griffith, Robert V. Slone
  • Publication number: 20070281035
    Abstract: A release coating having improved stability under aging conditions of heat and humidity is described whose release force can be altered by varying the amount of multi-lobe emulsion polymers relative to release agent.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 6, 2007
    Inventors: William B. Griffith, Nader Nassif Kamel, Don Gordon Pierson