Patents by Inventor Alden E. Blood

Alden E. Blood 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).

  • Polymeric hydroxylated polyesterethers and polyurethane flexible foam prepared therefrom
    Patent number: 3970619
    Abstract: The present invention relates to polymeric hydroxylated polyesterethers and the use of such compounds in preparing polyurethane flexible foam. The hydroxylated polyesterethers are prepared from p-dioxanone, polycarboxylic acids and polyols. These polymeric hydroxylated polyesterethers can then be reacted with polyisocyanates to produce a flexible, foamed polyurethane.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: July 20, 1976
    Assignee: Eastman Kodak Company
    Inventors: Thomas C. Snapp, Jr., Alden E. Blood, Sam H. Johnson, Jr.
  • Dioxane tetraether esters
    Patent number: 3954742
    Abstract: Para-dioxane esters of the formula ##SPC1##Wherein X is an acrylic or cyclic aliphatic or aromatic moiety having from 1 to 8 carbon atoms are produced by esterification of 1,4-dioxanemethanol with a dicarboxylic acid of 3 to 10 carbon atoms or a corresponding acid anhydride. The novel esters are useful as plasticizers, viscosity improvers, and in waxes and polishes.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: May 4, 1976
    Assignee: Eastman Kodak Company
    Inventors: Thomas C. Snapp, Jr., Alfred G. Robinson, Alden E. Blood
  • Process for purification of alkyl methacrylates
    Patent number: T955005
    Abstract: Alkyl methacrylates are obtained free of impurities such as alkyl butyrates and assorted alkyl iodides by the partial crystallization of the crude alkyl methacrylate composition and subsequently contacting said crystals of alkyl methacrylate with liquid alkyl methacrylate to thereby free the crystals of occluded impurities.
    Type: Grant
    Filed: July 9, 1971
    Date of Patent: February 1, 1977
    Inventors: Athey C. Stutler, Max Statman, Alden E. Blood