Patents by Inventor Alan K. Randall

Alan K. Randall 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).

  • Phenolic resin polyols and polymers derived from the polyols
    Patent number: 6569953
    Abstract: Phenolic resin polyols are disclosed. The polyols, which contain aliphatic or mixed phenolic and aliphatic hydroxyl groups, are the reaction products of aralkylated phenols or phenol aralkylation polymers with an oxyalkylating agent selected from alkylene oxides and alkylene carbonates. The phenolic resin polyols are versatile intermediates for many polymer systems, including urethanes, epoxies, alkyds, acrylates, and polyesters.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: May 27, 2003
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: David C. Dehm, David A. Hutchings, Alan K. Randall, Mark A. Peters
  • Phenolic resin polyols and polymers derived from the polyols
    Patent number: 6127491
    Abstract: Phenolic resin polyols are disclosed. The polyols, which contain aliphatic or mixed phenolic and aliphatic hydroxyl groups, are the reaction products of aralkylated phenols or phenol aralkylation polymers with an oxyalkylating agent selected from alkylene oxides and alkylene carbonates. The phenolic resin polyols are versatile intermediates for many polymer systems, including urethanes, epoxies, alkyds, acrylates, and polyesters.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: October 3, 2000
    Assignee: Gerorgia-Pacific Resins, Inc.
    Inventors: David C. Dehm, David A. Hutchings, Alan K. Randall, Mark A. Peters
  • Alkyd and aralkyd derivatives of phenolic polymers
    Patent number: 5770750
    Abstract: Phenolic aralkylation polymers modified by esterification with fatty acids, transesterification with glyceride oils, or other modifications to reactive hydroxyl moieties to improve the characteristics and properties of coating systems in which the modified materials are incorporated. At least a portion of the hydroxyl moieties of the polyol is esterified or otherwise modified. The hydroxyl moieties include those that have been "chain-extended," if desired.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: June 23, 1998
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: David A. Hutchings, Rajan Hariharan, Edward Lucas, Jr., Syed A. Elahi, Alan K. Randall, Kenneth Bourlier
  • Preparation of phenolic polymers by aralkylation reactions
    Patent number: 5756655
    Abstract: The present invention is directed to a method for preparing phenol aralkylation polymers by reaction among a phenolic monomer, a styrenic monomer and an aryl diolefin, characterized by the absence of a solvent, wherein a phenolic monomer is initially aralkylated in the presence of an acid catalyst with a first portion of at least one styrenic monomer to obtain an aralkylated phenol, the aralkylated phenol is reacted with an aryl diolefin to obtain a phenol aralkylation polymer, and then optionally, (though preferably) the phenol aralkylation polymer is further aralkylated with a second portion of at least one styrenic monomer.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: May 26, 1998
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Edward Lucas, Jr., Alan K. Randall, David A. Hutchings, David Valdez, Ellen V. Nagy