Patents by Inventor Raymond F. Jenkins

Raymond F. Jenkins 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).

  • Patent number: 4388434
    Abstract: The specification discloses a lithographic ink vehicle containing an addition copolymer of ethylenically unsaturated monomers having a critical calculated second order transition temperature (T.sub.g), and a critical molecular weight, utilizing as the essential solvents in the ink a predominantly aliphatic hydrocarbon having a kauri-butanol value of between about 18 and 31, preferably between about 21 and 28, in which the polymer must be soluble. Among the preferred monomers are isobornyl methacrylate and isobutyl methacrylate. Other ethylenically unsaturated monomers may be included, particularly functional monomers in small amounts having acid or amine groups.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: June 14, 1983
    Assignee: Rohm and Haas Company
    Inventors: Graham Swift, Harry J. Cenci, Raymond F. Jenkins
  • Patent number: 4310453
    Abstract: Low molecular weight addition copolymers, of (1) (meth)acrylic acid esters of alcohols such as methanol and butanol with (2) esters of alcohols such as N-(.beta.-hydroxyethyl)oxazolidine and unsaturated acids such as a (meth)acrylic acid, and (3) optional .alpha.,.beta.-ethylenically unsaturated monomers such as a (meth)acrylic acid, are found to be exceptional dispersants for inorganic and organic pigments and colorants which are insoluble in organic solvents, for lacquers, and are compatible with practically all types of lacquer resins such as vinyls, nitrocellulose, and alkyds, and with many other types of lacquer film-forming materials. Usually, when small amounts of unsaturated carboxylic acids, or other polar monomers and combinations thereof, are incorporated in the polymers, they become improved pigment dispersants. Such pigment dispersions, unexpectedly, can be let down with many types of synthetic resins and used by air-drying or baking the coated articles.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: January 12, 1982
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Raymond F. Jenkins, Graham Swift
  • Patent number: 4046744
    Abstract: Low temperature, one-component thermosetting coating compositions comprising a ketoxime-blocked polyisocyanate and an oxazolidine are disclosed. Also disclosed are a process for curing such composition and the cured products.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: September 6, 1977
    Assignee: Rohm and Haas Company
    Inventor: Raymond F. Jenkins