Patents Represented by Law Firm Dressler, Goldsmith, Shore, Sutker & Milnanow, Ltd.
  • Patent number: 4835018
    Abstract: Pigmented, abrasion and corrosion resistant, thermosetting organic solvent solution coating composition comprise: (A) from about 50 percent to about 85 percent of total resin solids of a triol-based blocked polyurethane polyisocyanate having a number average molecular weight in the range of 600 to 4000; (B) from about 15 percent to about 50 percent of total resin solids of an epoxy-phosphate provided by reacting a resinous polyepoxide with at least 0.05 mole of orthophosphoric acid per equivalent of oxirane in the polyepoxide; and (C) a corrosion-inhibiting pigment, preferably a chromium-containing pigment, providing resistance to corrosion. These coatings may be applied to the metal surface to be protected, or the metal surface may be protected with another primer which is overcoated with the subject coatings. The subject coatings are then topcoated, especially with pigmented fluorocarbon coatings.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: May 30, 1989
    Assignee: DeSoto, Inc.
    Inventors: Clark A. Higginbotham, Kenneth E. Jasenof, John Smyrniotis
  • Patent number: 4558160
    Abstract: A method for the production of dichloroformoxime is disclosed in which chloropicrin is dissolved in a nonbasic aprotic organic solvent together with anhydrous hydrogen chloride, and said chloropicrin is reduced to dichloroformoxime in said solution in the presence of powdered tin acting as both a reactant and catalyst. The reaction is preferably carried out in tetrahydrofuran using at least 15 grams of dissolved hydrogen chloride per 100 grams of solvent and chloropicrin in an amount of at least 50% of the weight of the hydrogen chloride. The powdered tin is used in an amount of at least about 1 mole of tin per mole of chloropicrin, and the reaction temperature is preferably about 0.degree. C.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: December 10, 1985
    Inventor: William R. Hydro