Patents by Inventor Philip E. Kendall

Philip E. Kendall 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: 20100197533
    Abstract: The invention relates to thermally conductive greases that may contain carrier oil(s), dispersant(s), and thermally conductive particles, wherein the thermally conductive particles are a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D50) particle size which differs from the other average particle sizes by at least a factor of five. The thermally conductive greases of the invention exhibit desirable rheological behavior during installation/application and during use of devices involving these materials.
    Type: Application
    Filed: August 15, 2007
    Publication date: August 5, 2010
    Applicant: 3M Innovative Properties Company
    Inventors: Philip E. Kendall, Ravi K. Sura
  • Publication number: 20100075135
    Abstract: An article including a first release liner with a first release surface, a second release liner with a second release surface, and a layer of a thermally conductive grease between the first and the second release surfaces. The thermally conductive grease includes a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D50) particle size which differs from the other distributions by at least a factor of 5.
    Type: Application
    Filed: March 7, 2008
    Publication date: March 25, 2010
    Inventors: Philip E. Kendall, Kanta Kumar
  • Patent number: 7643298
    Abstract: The invention relates to thermally conductive greases that may contain carrier oil(s), dispersant(s), and thermally conductive particles, wherein the thermally conductive particles are a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D50) particle size which differs from the other average particle sizes by at least a factor of 5.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: January 5, 2010
    Assignee: 3M Innovative Properties Company
    Inventor: Philip E. Kendall
  • Publication number: 20080266804
    Abstract: The invention relates to thermally conductive greases that may contain carrier oil(s), dispersant(s), and thermally conductive particles, wherein the thermally conductive particles are a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D50) particle size which differs from the other average particle sizes by at least a factor of 5
    Type: Application
    Filed: June 30, 2008
    Publication date: October 30, 2008
    Inventor: Philip E. Kendall
  • Patent number: 7404853
    Abstract: The invention relates to thermally conductive greases that may contain carrier oil(s), dispersant(s), and thermally conductive particles, wherein the thermally conductive particles are a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D50) particle size which differs from the other average particle sizes by at least a factor of 5
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: July 29, 2008
    Assignee: 3M Innovative Properties Company
    Inventor: Philip E. Kendall
  • Patent number: 7235296
    Abstract: The present invention is directed to an abrasive article and methods of making the abrasive article. An abrasive coating on the abrasive article comprises at least 20% by weight of a superabrasive particle. The abrasive coating is derived from an abrasive slurry. The abrasive slurry may comprise and a dispersant having an AV wherein AV=1000*[(Amine Value)/(Mw)]. The dispersant comprises a polymer having a molecular weight (Mw) of greater than 500 g/mol and an AV of greater than 4.5, a polymer having a molecular weight (Mw) of greater than 10,000 g/mol and an AV of greater than 1.0, or a polymer having a molecular weight (Mw) of greater than 100,000 g/mol and an AV of greater than 0.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: June 26, 2007
    Assignee: 3M Innovative Properties Co.
    Inventors: William J. Hunt, Philip E. Kendall, Gregg D. Dahlke
  • Patent number: 6858292
    Abstract: The present invention is directed to abrasive articles comprising a resin transfer additive and methods of abrading a workpiece with the abrasive article. The resin control additive is a metal salt of a long chain fatty acid. The abrasive article comprises a backing having a major surface, and an abrasive layer secured to at least a portion of the major surface. The abrasive layer comprises a binder, abrasive particles distributed in the binder, and a resin control additive distributed in the binder, and wherein the abrasive layer has a substantially uniform thickness.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: February 22, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Philip E. Kendall
  • Patent number: 6848986
    Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: February 1, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
  • Publication number: 20040048057
    Abstract: The present invention is directed to abrasive articles comprising a resin transfer additive and methods of abrading a workpiece with the abrasive article. The resin control additive is a metal salt of a long chain fatty acid. The abrasive article comprises a backing having a major surface, and an abrasive layer secured to at least a portion of the major surface. The abrasive layer comprises a binder, abrasive particles distributed in the binder, and a resin control additive distributed in the binder, and wherein the abrasive layer has a substantially uniform thickness.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Applicant: 3M Innovative Properties Company
    Inventor: Philip E. Kendall
  • Publication number: 20030194961
    Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.
    Type: Application
    Filed: April 30, 2003
    Publication date: October 16, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
  • Publication number: 20030175498
    Abstract: The present invention is directed to an abrasive article and methods of making the abrasive article. An abrasive coating on the abrasive article comprises at least 20% by weight of a superabrasive particle. The abrasive coating is derived from an abrasive slurry. The abrasive slurry may comprise and a dispersant having an AV wherein AV=1000*[(Amine Value)/(Mw)]. The dispersant comprises a polymer having a molecular weight (Mw) of greater than 500 g/mol and an AV of greater than 4.5, a polymer having a molecular weight (Mw) of greater than 10,000 g/mol and an AV of greater than 1.0, or a polymer having a molecular weight (Mw) of greater than 100,000 g/mol and an AV of greater than 0.
    Type: Application
    Filed: March 5, 2002
    Publication date: September 18, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: William J. Hunt, Philip E. Kendall
  • Publication number: 20030024169
    Abstract: The present invention is directed to a method of abrading a surface of a workpiece. The method of the invention comprises bringing a surface of a workpiece and an abrasive article into frictional contact in the presence of an aqueous fluid. The abrasive article comprises a backing comprising a surface, and an abrasive layer bonded to the surface of the backing, the abrasive layer comprising a binder, a plurality of abrasive particles, and a plurality of organic water soluble particles, the abrasive layer comprising a plurality of three-dimensional abrasive composites. The invention is also directed to the abrasive article for use in the method.
    Type: Application
    Filed: March 28, 2001
    Publication date: February 6, 2003
    Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort
  • Publication number: 20030017797
    Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.
    Type: Application
    Filed: March 28, 2001
    Publication date: January 23, 2003
    Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
  • Patent number: 4773920
    Abstract: Coated abrasive comprising a backing and abrasive grain adhered to said backing by means of a binder. The binder is prepared from a composition that is curable by free-radical polymerization. The composition contains abrasive grain suspended therein at the time the composition is coated onto the backing. The abrasive exhibits high endurance for extended periods of use. The coated abrasive is prepared by a method comprising the steps of:(a) providing a coatable composition comprising a binder curable by free-radical polymerization, said composition having lapping size abrasive grains suspended therein,(b) coating said composition on a backing, and(c) curing said composition by means of free-radical polymerization.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: September 27, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan N. Chasman, Ramon F. Hegel, Philip E. Kendall, Nathan B. Postma, Douglas S. Spencer