Patents by Inventor Cyril J. Ealding

Cyril J. Ealding 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: 4363872
    Abstract: A coated film base suitable for coating with a light-sensitive photographic emulsion film comprises a self-supporting film of a synthetic linear polyester and a continuous subbing layer applied to at least one surface of said self-supporting film comprising a water-insoluble copolymer of (a) a comonomer selected from acrylic acid, methacrylic acid or a derivative of acrylic acid or methacrylic acid and (b) a copolymerizable sulphonated ethylenically unsaturated comonomer having the general structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent hydrogen, halogen, alkyl, nitrile, amide, amine, ketone, ether or vinyl;R.sub.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: December 14, 1982
    Assignee: Imperial Chemical Industries Limited
    Inventor: Cyril J. Ealding
  • Patent number: 4329423
    Abstract: Improvements in coated film bases. Photobase comprising a film support, e.g. a polyethylene terephthalate film, having a copolymeric subbing layer comprising a copolymer of acrylic acid or an alkyl ester thereof/methacrylic acid or an alkyl ester thereof/itaconic acid or itaconic anhydride, e.g. an ethyl acrylate/methyl methacrylate/itaconic acid copolymer, and containing free itaconic acid, half ester or anhydride which is directly adherent to light-sensitive photographic emulsions.
    Type: Grant
    Filed: October 22, 1980
    Date of Patent: May 11, 1982
    Assignee: Imperial Chemical Industries Limited
    Inventors: Cyril J. Ealding, Graham Jarrett
  • Patent number: 4149920
    Abstract: A process for the production of moulded articles, such as sheet laminates, which comprises applying and curing a layer of a curable unsaturated polyester resin to a forming layer of film composite, e.g., a polyethylene terephthalate film layer, and a polymeric adhesive layer, consisting essentially of an isophthalate/terephthalate copolyester.
    Type: Grant
    Filed: September 23, 1976
    Date of Patent: April 17, 1979
    Assignee: Imperial Chemical Industries Limited
    Inventors: Cyril J. Ealding, Keith E. Brealey