Patents by Inventor Carl Bernstein

Carl Bernstein 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).

  • Photosensitive plates with diazonium composition layer and polyurethane photopolymer with unsaturation in side chain overlayer
    Patent number: 4608331
    Abstract: Photopolymeric polyurethanes are provided which have a polymeric backbone including recurring urethane or urea groups or both and which have unsaturated hydrocarbon groups attached to this backbone. These photopolymers are combined with a solvent and have a selected and controlled molecular weight and viscosity. The photopolymeric polyurethane solutions are especially useful in providing plates that have a layer including a photopolymer, particularly plates for printing or photoresists that have a photopolymeric layer over a layer of light sensitive diazonium composition.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: August 26, 1986
    Assignee: Witco Chemical Corporation
    Inventors: Carl Bernstein, Konstantinos Arvanitis, Luigi Amariti
  • Polyester resins for polyurethane foams
    Patent number: 4404295
    Abstract: The machine processing character as well as the stress-strain properties of polyester polyurethane foam are improved by the use of a cross-linking polyol, a viscosity increasing dicarboxylic acid or anhydride such as phthalic anhydride, and by the use of specific minor amounts of poly(oxyethylene) glycol, in the esterification formula of foam grade polyester resins. A nonhydrophillic flexible polyester based polyurethane foam is produced.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: September 13, 1983
    Assignee: Witco Chemical Corporation
    Inventors: Carl Bernstein, James Stogis, Travis Riddle, Robert Kufrin
  • Polyester resins for polyurethane foams prepared by reacting two diacids, diethylene glycol, a poly(oxyethylene) glycol and a cross-linking polyol
    Patent number: 4349662
    Abstract: The machine processing character as well as the stress-strain properties of polyester polyurethane foam are improved by the use of a cross-linking polyol, a viscosity increasing dicarboxylic acid or anhydride such as phthalic anhydride, and by the use of specific minor amounts of poly(oxyethylene) glycol, in the esterification formula of foam grade polyester resins. A nonhydrophillic flexible polyester based polyurethane foam is produced.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: September 14, 1982
    Assignee: Witco Chemical Corporation
    Inventors: Carl Bernstein, James Stogis, Travis Riddle, Robert Kufrin
  • Curable amine-terminated polyurethane-urea-epoxide lacquers
    Patent number: 3931116
    Abstract: Amine-terminated polyetherurethane-urea polymers in a solvent, as for instance, isopropanol, toluene, and mixtures thereof, are chain-extended with as little as about 0.1 and up to 9 percent, by weight, based on the amine terminated polyetherurethane-urea, of a polyepoxide, such as a polyepoxide of p,p'-isopropylidenediphenol, of a phenolformaldehyde resin, epoxidized soybean oil, diglycidyl phthalate, and the like, to produce films, coatings, adhesives, and caulking having improved hydrolytic stability, and other improved physical properties.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: January 6, 1976
    Assignee: Witco Chemical Corporation
    Inventors: Carl Bernstein, Konstantinos Arvanitis, Yuen Ng