Patents by Inventor Albert L. Lore

Albert L. Lore 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).

  • Oil- and water-repellent copolymers
    Patent number: 4742140
    Abstract: Oil- and water-repellent solid fluoropolymers are disclosed, comprising by weight:(a) 40-75% polymer chain units derived from a mixture of perfluoroalkylethylacrylate monomers of formulaCF.sub.3 CF.sub.2 (CF.sub.2).sub.k C.sub.2 H.sub.4 OC(O)CH.dbd.CH.sub.2,the monomer mixture consisting essentially of:(1) 0-10% monomer wherein k is 4 or less;(2) 45-75% monomer wherein k is 6;(3) 20-40% monomer wherein k is 8;(4) 1-20% monomer wherein k is 10; and(5) 0-5% monomer wherein k is 12;(b) 10-35% polymer chain units derived from vinylidene chloride; and(c) 10-25% polymer chain units derived from an alkyl acrylate or alkyl methacrylate having an alkyl chain length of 2-18 carbons.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: May 3, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward J. Greenwood, Albert L. Lore, Nandakumar S. Rao
  • Fluorine-containing polymer compositions and their preparation
    Patent number: 4564561
    Abstract: Mixtures of (1) a polymer of at least one polyfluoroalkyl acrylate or methacrylate and (2) a copolymer of (a) at least one polyfluoroalkyl acrylate or methacrylate, (b) at least one 3-chloro- (or 3-bromo-) 2-hydroxypropyl acrylate or methacrylate, (c) at least one alkyl acrylate or methacrylate and (d) at least one polyoxyethylene acrylate or methacrylate. Mixtures are prepared by first polymerizing (1) and then (2) (a)-(d). Mixtures are useful as oil- and water-repellents, particularly for rainwear.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Albert L. Lore, Stuart Raynolds
  • Fluorine-containing terpolymers
    Patent number: 4127711
    Abstract: Terpolymers comprising (i) from 55 to 80 percent by weight of units derived from a perfluoroaliphatic acrylate or methacrylate monomer, (ii) from 15 to 35 percent by weight of units derived from a nonfluorinated polyethylene oxide acrylate or methacrylate monomer, and (iii) from 1 to 15 percent by weight of units derived from a nonfluorinated dialkylaminoethyl acrylate or methacrylate monomer in its free base, amine salt, quaternary ammonium, or amine oxide form. The terpolymers are useful in oil and water repellency applications.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: November 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Albert L. Lore, Stuart Raynolds
  • Fluorosurfactant leveling agent
    Patent number: 4064067
    Abstract: When added thereto, certain cationic alkylammonium surfactant compounds, e.g., C.sub.12 H.sub.25 N(CH.sub.3).sub.3 Cl, enhance the leveling activity of known fluorophosphate leveling agents, e.g., ##STR1## where (CF.sub.2).sub.n represents a mixture of groups with C.sub.4 -C.sub.14 carbons, in floor polishes.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: December 20, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Albert L. Lore