Patents Represented by Attorney Herbert P. Price

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  • Phosphated locust bean gums
    Patent number: 4162925
    Abstract: Phosphated locust bean gum is cold water soluble and does not require heat or high shear to form viscous solutions in water. Blends of phosphated locust bean gum and xanthan gums are also cold water soluble and such blends will form highly viscous gels in water without the application of heat or high shear agitation. Such gels are useful as suspending media for a variety of materials, e.g., seeds used in fluid drilling planting operations.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: July 31, 1979
    Assignee: Meyhall Chemical AG
    Inventors: Karl H. O. Tiefenthaler, Erich W. K. Nittner
  • Aqueous dispersions of polyhydroxy polyether resins as coating compositions for metallic substrates
    Patent number: 4141871
    Abstract: Coating compositions are prepared from aqueous dispersions of polyhydroxy polyether resins and aminoplast or phenolplast resins or blocked polyisocyanates containing as a diluent an aqueous emulsion of a water immiscible alcohol. The coating compositions are particularly useful as can coatings.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: February 27, 1979
    Assignee: Celanese Polymer Specialties Company
    Inventors: David A. Shimp, Robert B. Mitzel
  • Process for preparing cathodically depositable coating compositions
    Patent number: 4139510
    Abstract: Polyepoxide resins are adducted with polyamines using an excess of the amine. After the adducting reaction is completed, the excess unreacted polyamine is removed. The adduct is then reacted with a monoepoxide or a monocarboxylic acid. When salted with an acid, the resinous adducts are water soluble or water dispersible. The resin solutions or dispersions are particularly useful in cathodic electrodeposition processes for prime coating metal objects.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: February 13, 1979
    Assignee: Celanese Polymer Specialties Company
    Inventor: Terry L. Anderson
  • Cathodic electrocoating
    Patent number: 4137140
    Abstract: Polyepoxide resins are adducted with polyamines which are further reacted with a monoepoxide or a monocarboxylic acid. When salted with an acid, the resinous adducts are water soluble or water dispersible. The resin solutions or dispersions are particularly useful in cathodic electrodeposition processes for prime coating metal objects.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: January 30, 1979
    Assignee: Celanese Polymer Specialties Company
    Inventor: William J. Belanger
  • Cathodic electrocoating resin system comprising the reaction product of polyepoxide, a polyamine and a monocarboxylic acid
    Patent number: 4134864
    Abstract: Polyepoxide resins are adducted with polyamines which are further reacted with a monoepoxide or a monocarboxylic acid. When salted with an acid, the resinous adducts are water soluble or water dispersible. The resin solutions or dispersions are particularly useful in cathodic electrodeposition processes for prime coating metal objects.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: January 16, 1979
    Assignee: Celanese Polymer Specialties Company
    Inventor: William J. Belanger
  • Process of reacting a polyepoxide compound with a phenol in aqueous medium
    Patent number: 4122067
    Abstract: Polyhydroxypolyether resins are prepared by reacting in water as a dispersion an epoxide compound which has more than one 1,2-epoxy group per molecule with a dihydric phenol. The reaction is conducted in the presence of a nonionic dispersant at a temperature of about 80.degree. C. to about 100.degree. C. using, as a catalyst, an organic phosphine, a tertiary amine, or a quaternary ammonium or phosphonium compound. The polyhydroxypolyether resins are useful in coating compositions, molding compounds, encapsulating compositions, adhesives and the like.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: October 24, 1978
    Assignee: Celanese Polymer Specialties Company
    Inventor: Terry Leroy Anderson
  • Pressure sensitive adhesive composition
    Patent number: 4121028
    Abstract: The stability, particularly in the presence of unprotected ferrous metal surfaces, of pressure-sensitive adhesive compositions, made from a carboxylic acid containing acrylic polymer and chelate esters of orthotitanic acid, is improved by the addition of a small amount of a tertiary amine.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: October 17, 1978
    Assignee: Celanese Polymer Specialties Company
    Inventors: Richard G. Marchessault, Thomas P. Carter, Jr., Martin M. Williams
  • Cathodic electrocoating resin system from polyepoxide, polyamine, and monoepoxide
    Patent number: 4116900
    Abstract: Polyepoxide resins are adducted with polyamines which are further reacted with a monoepoxide or a monocarboxylic acid. When salted with an acid, the resinous adducts are water soluble or water dispersible. The resin solutions or dispersions are particularly useful in cathodic electrodeposition processes for prime coating metal objects.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: September 26, 1978
    Assignee: Celanese Polymer Specialties Company
    Inventor: William J. Belanger
  • Controlled reactivity epoxy resin compositions
    Patent number: 4111909
    Abstract: Epoxy resin compositions having extended reactivity (gel time) are prepared by adding phosphate or phosphite compounds to epoxy resin-dicyandiamide-tertiary amine curing systems. Such compositions are useful in preparing glass fiber laminates and powder coatings.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: September 5, 1978
    Assignee: Celanese Polymer Specialties Company
    Inventor: James Brandon Simons
  • Process for preparing cathodically depositable coating compositions
    Patent number: 4093594
    Abstract: Polyepoxide resins are adducted with polyamines using an excess of the amine. After the adducting reaction is completed, the excess unreacted polyamine is removed. The adduct is then reacted with a monoepoxide or a monocarboxylic acid. When salted with an acid, the resinous adducts are water soluble or water dispersible. The resin solutions or dispersions are particularly useful in cathodic electrodeposition processes for prime coating metal objects.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: June 6, 1978
    Assignee: Celanese Polymer Specialties Company
    Inventor: Terry L. Anderson
  • Aqueous dispersions of polyhydroxy polyether resins and aminoplast resins
    Patent number: 4059550
    Abstract: Coating compositions are prepared from aqueous dispersions of polyhydroxy polyether resins and aminoplast or phenolplast resins catalyzed with adducts of phosphoric acid and glycidyl polyethers of polyhydric phenols. The coating compositions are particularly useful as can coatings.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: November 22, 1977
    Assignee: Celanese Polymer Specialties Company
    Inventor: David Alan Shimp
  • Polyepoxide-polyacrylate ester compositions
    Patent number: 4051195
    Abstract: Curable compositions are made from a blend of an epoxide resin and a polyacrylate or polymethacrylate ester. Such compositions cure rapidly even at low temperatures when mixed with aliphatic polyamines and are useful in coating and adhesive applications.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: September 27, 1977
    Assignee: Celanese Polymer Specialties Company
    Inventor: Wayne F. McWhorter
  • Process for making powder coatings
    Patent number: 4049744
    Abstract: Powder coating compositions are prepared by first forming a dispersion in water of a complex polyhydroxy polyether resin using as the dispersant an inorganic or organic base salt of a polymeric carboxylic acid having an acid value before salting of at least 50, acidifying the dispersion and then isolating and drying the precipitated fine particle size resin. Such resins in this finely divided form find particular utility as powder coatings for metallic articles.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: September 20, 1977
    Assignee: Celanese Polymer Specialties Company
    Inventor: John Edward Masters
  • Aqueous dispersions of vinyl acetate/polyacrylate ester of pentaerythritol/hydroxymethyl diacetone acrylamide copolymers having improved adhesion properties
    Patent number: 4022743
    Abstract: Vinyl acetate based aqueous dispersion having improved wet adhesion properties are prepared by copolymerizing vinyl acetate with about 3 to about 10 percent by weight of a polyacrylate ester and about 0.5 to 3 percent by weight of hydroxymethyl diacetone acrylamide, said percentages being based on the total weight of the copolymer. Optionally, other monomers copolymerizable therewith can be included in the copolymer. Aqueous dispersions of this invention have utility as vehicles in protective coating formulations.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: May 10, 1977
    Assignee: Celanese Corporation
    Inventors: Ralph F. Patella, Joseph A. Vona
  • Transparent pigment dispersion process
    Patent number: 4017448
    Abstract: Transparent pigment dispersions, having long term storage capabilities and which produce coatings having a rich clean color and excellent transparency are produced by first dispersing the pigment in a resin solution under high speed, high shear, high impact conditions followed by completing the dispersion under conditions of maximized shear and minimized impact. Such pigment dispersions are useful in automotive paints, particularly "metallic" automotive paints.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: April 12, 1977
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Sol Panush
  • Acrylate or methacrylate modified alkyd resins and epoxy esters
    Patent number: 4014830
    Abstract: Air drying epoxy esters and alkyd resins are blended with polyacrylate esters of polyols. Coatings made from these blends have improved air-drying properties over the properties of coatings made from the unmodified resins, particularly in hardness and recoatability after overnight dry.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: March 29, 1977
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Robert D. Rumfield
  • Thermosetting concrete-containing epoxy
    Patent number: 3988279
    Abstract: Improved concretes and mortars are made from a hydraulic cement, e.g., Portland cement, and aggregate, plus a curable epoxy resin powder. After the concrete or mortar has cured by hydration, it is heated to a temperature high enough to cause the epoxy resin powder to melt, flow and cure.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: October 26, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Harold C. Klassen
  • Rinsing solutions for acid cleaned iron and steel surfaces
    Patent number: 3973998
    Abstract: Metal surfaces, after being cleaned of rust with an aqueous acid solution, are rinsed with an aqueous solution of a chelating agent and an ammonium or alkali metal silicate. Such rinsed surfaces remain rust free for extended periods of time. When coated with primer and top-coat paints, excellent durability and corrosion resistance are obtained.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: August 10, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventors: Vijay Jang Datta, John David White
  • Powder coatings having a variegated, speckled appearance
    Patent number: 3966669
    Abstract: Powder coating compositions which produce a variegated speckled appearance after being applied and baked are made from a dry blend of a finely divided fusible polymeric film forming coating composition and an oil soluble dye. Such coating compositions are useful as decorative and protective coatings for many industrial applications.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: June 29, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Norman Gilbert Wolfe
  • Mercaptan initiated polymerization process carried out in the presence of oxygen
    Patent number: 3960824
    Abstract: Low molecular weight polymers of ethylenically unsaturated monomers are prepared by a bulk polymerization process using organic mercaptans as the polymerization catalysts and carried out in the presence of oxygen. These low molecular weight polymers find utility as high solids casting and coating resins.
    Type: Grant
    Filed: July 9, 1971
    Date of Patent: June 1, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Darrell D. Hicks