Patents by Inventor William C. Allison

William C. Allison 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: 20040102141
    Abstract: The present invention relates to a polishing pad. In particular, the polishing pad of the present invention can include a window. The polishing pad of the present invention can be useful for polishing articles and can be especially useful for chemical mechanical polishing or planarization of a microelectronic device, such as a semiconductor wafer. The window of the polishing pad is at least partially transparent and thus, can be particularly useful with polishing or planarizing tools that are equipped with through-the-platen wafer metrology.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 27, 2004
    Inventors: Robert G. Swisher, William C. Allison, Alan E. Wang
  • Publication number: 20040102137
    Abstract: The present invention relates to a polishing pad. In particular, the polishing pad of the present invention comprises a sublayer, a middle layer, and a top layer which can function as a polishing layer. The polishing pad of the present invention is useful for polishing articles and particularly useful for chemical mechanical polishing or planarization of a microelectronic device, such as a semiconductor wafer.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 27, 2004
    Inventors: William C. Allison, Robert G. Swisher, Alan E. Wang
  • Publication number: 20030217517
    Abstract: A polishing pad is described as comprising, (a) particulate polymer which can be chosen from particulate thermoplastic polymer (e.g., particulate thermoplastic polyurethane), particulate crosslinked polymer (e.g., particulate crosslinked polyurethane and/or particulate crosslinked polyepoxide) and mixtures thereof; and (b) organic polymer binder (e.g., polyurethane binder and/or polyepoxide binder), which can bind the particulate polymer together, wherein said organic polymer binder can be prepared in-situ. The particulate polymer and organic polymer binder can be distributed substantially across the work surface the polishing pad, and the pad can have a percent pore volume of from 2 percent by volume to 50 percent by volume, based on the total volume of said polishing pad.
    Type: Application
    Filed: December 13, 2002
    Publication date: November 27, 2003
    Inventors: William C. Allison, Robert G. Swisher, Alan E. Wang
  • Patent number: 6340725
    Abstract: A printing medium comprising a substrate having at least one surface and a coating on the surface wherein the coating comprises: (a) binder comprising: (1) organic polymer which is substantially free of ammonium groups, (2) first cationic addition polymer consisting essentially of quaternary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, and (3) second cationic addition polymer consisting essentially of secondary, tertiary, or both secondary and tertiary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, wherein the binder constitutes from 20 to 90 percent by weight of the coating; and (b) finely divided substantially water-insoluble filler particles which have a maximum dimension of less than 500 nanometers, are distributed throughout the binder, and constitute from 10 to 80 percent by weight of coating.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: January 22, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Alan E. Wang, Louis J. Nehmsmann, Suk H. Cho, Robert H. Tang, William C. Allison
  • Patent number: 6228822
    Abstract: Described are novel synthetic detergent base materials having a pH from 5 to 8 and consisting essentially of from 45 to 70 weight percent of mild synthetic surfactant, salts thereof, or a mixture of the mild synthetic surfactant and salts thereof; from 20 to 30 weight percent of C8-C22 fatty acid; from 1.5 to 10 weight percent of C8-C22 n-acyl sarcosine, salts thereof, or a mixture of the sarcosine and salts thereof; from 0.5 to 5 weight percent of C1-C22 alkyl aryl sulfonic acid, salts thereof, or a mixture of the sulfonic acid and salts thereof; and from 1 to 5 weight percent soap, e.g., salts of C8-C22 fatty acid. Also described are syndet bars prepared from the synthetic detergent base material.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: May 8, 2001
    Assignee: BASF Corporation
    Inventors: William C. Allison, Lorna Alderfer
  • Patent number: 6074761
    Abstract: A printing medium comprising a substrate having at least one surface and a coating on the surface wherein the coating comprises: (a) binder comprising: (1) organic polymer which is substantially free of ammonium groups, (2) first cationic addition polymer consisting essentially of quaternary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, and (3) second cationic addition polymer consisting essentially of secondary, tertiary, or both secondary and tertiary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, wherein the binder constitutes from 20 to 90 percent by weight of the coating; and (b) finely divided substantially water-insoluble filler particles which have a maximum dimension of less than 500 nanometers, are distributed throughout the binder, and constitute from 10 to 80 percent by weight of coating.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: June 13, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Alan E. Wang, Louis J. Nehmsmann, Suk H. Cho, Robert H. Tang, William C. Allison
  • Patent number: 5948396
    Abstract: An amphoteric, hair fixative polymer for use in hair sprays, gels, and the like contains 40-90 percent of a hydroxyl-containing ethylenically unsaturated monomer, 1-20 percent of an acid-containing ethylenically unsaturated monomer, and 1-20 percent of an amine-containing ethylenically unsaturated monomer. The polymer has hydroxyl, acid and amine functionalities and, while being insoluble in water, can be solubilized in water by the use of amine neutralizers, acidic neutralizers, or by solubilizing in alcohol-water mixtures. The polymers provide hair fixatives that are fast drying, and have excellent curl retention with low curl droop.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: September 7, 1999
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Suryya K. Das, Soner Kilic, William C. Allison
  • Patent number: 5880196
    Abstract: A printing medium comprising a substrate having at least one surface and a coating on the surface wherein the coating comprises: (a) binder comprising: (1) organic polymer which is substantially free of onium groups, and (2) onium addition polymer consisting essentially of onium-containing mer units derived from addition monomer and onium-free mer units derived from addition monomer of which from 20 to 100 percent by weight is hydrophobic addition monomer, wherein the binder constitutes from 20 to 90 percent by weight of the coating; and (b) finely divided substantially water-insoluble pseudoboehmite particles which have a maximum dimension of less than 500 nanometers, are distributed throughout the binder, and constitute from 10 to 80 percent by weight of the coating.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 9, 1999
    Assignee: PPG Industries, Inc.
    Inventors: Suk H. Cho, William C. Allison, Charles T. Hill, Jr., Louis J. Nehmsmann, Alan E. Wang
  • Patent number: 5075042
    Abstract: Described are detergent compositions that exhibit reduced skin irritation properties while providing excellent cleaning and detergent characteristics. The detergent composition contains anionic and/or nonionic surface active materials that are at least mildly irritating to the skin and an amount of alkyl poly(ethyleneoxy)sulfonate sufficient to reduce the primary skin irritation potential of the detergent composition. The aliphatic poly(ethyleneoxy)sulfonate typically has a hydrophobe containing from 12 to about 22 carbon atoms and an average of from about 10 to about 30 ethyleneoxy groups, and is present in the detergent composition in amounts of from about 5 to about 50 percent of the total amount of surface active material in the detergent composition.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: December 24, 1991
    Assignee: PPG Industries, Inc.
    Inventors: William C. Allison, Louis J. Nehmsmann