Patents by Inventor Arthur T. Spencer

Arthur T. Spencer 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: 5635049
    Abstract: An aqueous coating composition that is particularly adapted for repairing defects in coated metal articles comprises an aqueous dispersion having as its major ingredient an epoxy phosphate ester polymer, a cross-linking agent for the epoxy phosphate ester polymer which may be an aminoplast or phenoplast resin, and an effective quantity of an organic solvent having a solubility parameter in the range of 8.5-10 and being soluble in water at 20.degree. C. to the extent of less than 10%. The composition is desirably electrocoated upon the object at a temperature in the range of from 80.degree. to 120.degree. F. and preferably from about 90.degree.-100.degree. F.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 3, 1997
    Assignee: The Valspar Corporation
    Inventors: Richard G. Mysliwczyk, William H. McCarty, Arthur T. Spencer
  • Patent number: 5296525
    Abstract: A coating composition particularly adapted for can coatings is prepared by the addition polymerization of a monomer such as styrene in a reaction medium comprising a modified 1,2 epoxy resin. The epoxy resin is modified by combining a portion of its 1,2-epoxy groups with epoxy-reactive groups of an ethylenically unsaturated monomer, and reacting others of its 1,2-epoxy groups with a tertiary amine and with a preformed addition polymer containing carboxyl groups to form an ionic, resinous composition containing sufficient carboxyl groups to render the coating composition self-dispersible in water in neutralized form.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: March 22, 1994
    Assignee: The Valspar Corporation
    Inventor: Arthur T. Spencer
  • Patent number: 5264469
    Abstract: An aqueous coating composition that is particularly suited for coating metal containers used for packaging food and beverages. The coating comprises an aqueous dispersion of the reaction product of a 1,2-epoxy resin with a carboxyl functional addition polymer, an epoxy phosphate ester polymer, and an effective quantity of a curing agent which may be a phenoplast or an aminoplast resin.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: November 23, 1993
    Assignee: The Valspar Corporation
    Inventors: Richard G. Mysliwczyk, William H. McCarty, Arthur T. Spencer
  • Patent number: 4874318
    Abstract: An arrangement for mounting a chip (14) to a printed circuit board (10), wherein a lock nut (18) is cemented to the chip carrier to extend through an aperture (28) in a socket moulding (26) and into an aperture (30) in the pcb, the latter also receiving from the opposite direction a mounting screw (36) which screws into the lock nut to clamp the assembly together, with interface contacts (16) on the chip carrier connected to contact pads (12) on the pcb by interconnecting elements principally accommodated in slots (38) in the socket moulding.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: October 17, 1989
    Assignee: Flexicon Systems Limited
    Inventor: Arthur T. Spencer
  • Patent number: 4585813
    Abstract: Non-gelled compositions containing hydroxy ester copolymer having carboxyl groups and substantially free of oxirane groups and the method of making them are disclosed which are the esterification reaction product of(A) acidic addition copolymer; and(B) epoxy resin including aromatic polyether containing oxirane groups in which the epoxy resin comprises at least 50% of the total resin solids and contains insufficient oxirane groups to react with all of the carboxyl groups in the copolymer; in which esterification is conducted after treatment of the addition copolymer with amine in an amount sufficient to neutralize at least 5% of the carboxyl group in the copolymer. The resulting composition is neutralized with amine, is self-emulsifiable in water and is useful for coatings, e.g., for cans.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: April 29, 1986
    Assignee: SCM Corporation
    Inventors: George L. Brown, Miksa de Sorgo, Arthur T. Spencer
  • Patent number: 4547535
    Abstract: Non-gelled compositions containing hydroxy ester copolymer having carboxyl groups and substantially free of oxirane groups are disclosed which are the esterification reaction product of(A) acidic addition copolymer; and(B) mixtures containing epoxy resin including both aromatic polyether containing oxirane groups and aromatic polyether devoid of oxirane groups, in which the mixture comprises at least 40% of the total resin solids and contains insufficient oxirane groups to react with all of the carboxyl groups in the copolymer. The resulting composition is neutralized with amine, is self-emulsifiable in water and is useful for coating, e.g., for cans.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: October 15, 1985
    Assignee: SCM Corporation
    Inventors: George L. Brown, Arthur T. Spencer
  • Patent number: 4501831
    Abstract: Aqueous compositions suitable for use as sanitary container coatings are prepared by reacting epoxy resin and a carboxyl containing acrylic resin in the presence of a polyfunctional tertiary amine. The compositions made with polyfunctional amine have lower viscosities than those made with monofunctional amine, an advantage in preparing high solid coatings for roll application, for example.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: February 26, 1985
    Inventors: Shaw C. Chu, Arthur T. Spencer
  • Patent number: 4482673
    Abstract: Non-gelled compositions containing hydroxy ester copolymer having carboxyl groups and substantially free of oxirane groups and the method of making them are disclosed which are the esterification reaction product of(A) acidic addition copolymer; and(B) epoxy resin including aromatic polyether containing oxirane groups in which the epoxy resin comprises at least 40% of the total resin solids and contains insufficient oxirane groups to react with all of the carboxyl groups in the copolymer; in which esterification is conducted in the presence of higher than the normal amount of amine catalyst, i.e., 1.5% or more. The resulting composition is neutralized with amine, is self-emulsifiable in water and is useful for coatings, e.g., for cans.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: November 13, 1984
    Assignee: SCM Corporation
    Inventors: George L. Brown, Miksa de Sorgo, Arthur T. Spencer
  • Patent number: 4476262
    Abstract: A method for reducing extractable constituents of an undesirable monomer in compositions which comprise an ionic polymer and an addition polymer of the undesired monomer which comprises conducting an addition polymerization in the presence of the undesired monomer with another monomer which is copolymerizable therewith and which results in a less undesirable residue or a residue which is more easily removable, is disclosed.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: October 9, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Shaw C. Chu, Arthur T. Spencer
  • Patent number: 4446258
    Abstract: Aqueous compositions suitable for sanitary can coatings comprising the neutralized water dispersible ionic polymer product of the reaction of an epoxy resin with acid polymer, and a different resin which is not necessarily self-dispersible in water, as well as several methods of preparing such compositions, are disclosed. The second resin which is not necessarily self-dispersible in water is introduced either preformed at any stage or is prepared, in situ, in the presence of the epoxy resin esterified with acid polymer either before the ionic epoxy resin-acid polymer product is dispersed in water. The epoxy resin-acid polymer product acts as a polymeric surfactant capable of keeping even a normally non self-dispersible second polymer in stable dispersion in water.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: May 1, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Shaw C. Chu, Arthur T. Spencer
  • Patent number: 4442246
    Abstract: Non-gelled compositions containing hydroxy ester copolymer having carboxyl groups and substantially free of oxirane groups are disclosed which are the esterification reaction product of(A) acidic addition copolymer; and(B) mixtures containing epoxy resin including both aromatic polyether containing oxirane groups and aromatic polyether devoid of oxirane groups, in which the mixture comprises at least 40% of the total resin solids and contains insufficient oxirane groups to react with all of the carboxyl groups in the copolymer. The resulting composition is neutralized with amine, is self-emulsifiable in water and is useful for coatings, e.g., for cans.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: April 10, 1984
    Assignee: SCM Corporation
    Inventors: George L. Brown, Arthur T. Spencer
  • Patent number: 4292217
    Abstract: Water based coatings have been developed comprising water containing dispersed liquid droplets of water immiscible, hydroxy functional organic material, which are emulsified in the water, the water having dispersed therein an amine salt constituted by a salt of a solubilizing acid with a polyamide having a plurality of terminal primary amine groups. About one of the primary amine groups in the polyamide is unsubstituted, and at least about 70% of the isocyanate-reactive amino hydrogen atoms in the polyamide other than in the unsubstituted primary amine group are reacted with one isocyanate group of an organic polyisocyanate, the remaining isocyanate groups of which are blocked by a volatile blocking agent. The blocked isocyanate groups are nonreactive at room temperature and the unblocked isocyanate groups are reactive with the hydroxy functionality of the organic hydroxy functional material at elevated temperature.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: September 29, 1981
    Assignee: Mobil Oil Corporation
    Inventor: Arthur T. Spencer
  • Patent number: 4195005
    Abstract: There is disclosed a metal container containing a beverage or food having its integral surface coated with an adherent sanitary liner, the coating being a cured layer of a water-based coating composition consisting essentially of from about 5 percent to about 60 percent by weight of an amine-neutralized or partially neutralized interpolymer formed in the presence of a vinyl polymerization catalyst and in the absence of mercaptan, the interpolymer being comprised of from about 10 percent to about 30 percent of acrylamide or methacrylamide in units of the structure: ##STR1## where R' is methyl or hydrogen and R is hydrogen or lower alkyl, from about 5 percent to about 15 percent of units formed by vinyl polymerization of monoethylenically unsaturated carboxylic acid; from about 10 percent to about 50 percent of units derived by vinyl polymerization of isobutyl methacrylate; and from about 20 percent to about 45 percent of nitrile, such as acrylonitrile; wherein the interpolymer is solubilized by neutralizing ac
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: March 25, 1980
    Assignee: Mobil Oil Corporation
    Inventors: George L. Brown, Arthur T. Spencer
  • Patent number: 4195006
    Abstract: There is disclosed a metal container containing a beverage or food having its internal surface coated with an adherent sanitary liner, the coating being a cured layer of a water-based coating composition consisting essentially of from about 5 percent to about 60 percent by weight of an amine-neutralized or partially neutralized interpolymer formed in the presence of a vinyl polymerization catalyst and in the absence of mercaptan, the interpolymer being comprised of from about 10 percent to about 30 percent of acrylamide or methacrylamide in units of the structure: ##STR1## where R' is methyl or hydrogen and R is hydrogen or lower alkyl, from about 5 percent to about 15 percent of units formed by vinyl polymerization of monoethylenically unsaturated carboxylic acid; from about 10 percent to about 30 percent of units derived by vinyl polymerization of monovinyl aromatic monomer; from about 10 percent to about 30 percent of units formed by vinyl polymerization of flexibilizing monomer selected from lower alkyl a
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: March 25, 1980
    Assignee: Mobil Oil Corporation
    Inventors: George L. Brown, Arthur T. Spencer
  • Patent number: 4169080
    Abstract: Water based coatings have been developed comprising water containing dispersed liquid droplets of water immiscible, hydroxy functional organic material, which are emulsified in the water, the water having dispersed therein an amine salt constituted by a salt of a solubilizing acid with a polyamide having a plurality of terminal primary amine groups. About one of the primary amine groups in the polyamide is unsubstituted, and at least about 70% of the isocyanate-reactive amino hydrogen atoms in the polyamide other than in the unsubstituted primary amine group are reacted with one isocyanate group of an organic polyisocyanate, the remaining isocyanate groups of which are blocked by a volatile blocking agent. The blocked isocyanate groups are nonreactive at room temperature and the unblocked isocyanate groups are reactive with the hydroxy functionality of the organic hydroxy functional material at elevated temperature.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: September 25, 1979
    Assignee: Mobil Oil Corporation
    Inventor: Arthur T. Spencer
  • Patent number: 4133909
    Abstract: High solids, low viscosity, radiation curable, aqueous coatings compositions are provided by adding a small proportion of water to a polyethylenically unsaturated resin, preferably a liquid polyester containing acrylate groups and carboxyl functionality enabling improved dispersibility with water in the presence of a base, and a water soluble monoethylenically unsaturated monomer selected from acrylamide and N-methylol acrylamide is added to lower the viscosity of the composition and also to improve the cure. An ultraviolet photosensitizer, such as benzophenone, is added, preferably together with a tertiary amine cosensitizer, to enable ultraviolet cure.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: January 9, 1979
    Assignee: Mobil Oil Corporation
    Inventor: Arthur T. Spencer
  • Patent number: 4123132
    Abstract: A captive washer and threaded fastener combination. The washer has a non-planar apertured portion, for passage of a screw shank, which is plastically deformed on first tightening of the fastener. The plastic deformation causes further extending portions of the washer to engage a shoulder on the screw or nut, and hold the washer captive.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 31, 1978
    Assignee: PYE (Electronic Products Ltd.)
    Inventors: Paul R. Hardy, Arthur T. Spencer
  • Patent number: 4043968
    Abstract: Monoethylenically unsaturated monomers including an amide monomer are copolymerized in organic solvent solution to provide an amide copolymer solution, and volatile nitrogen-containing materials are removed from the solution without removing more than 15% of the solvent, based on the weight of the solution, and then the amide copolymer is reacted in the solution with formaldehyde in the presence of an acid catalyst, to methylolate the same.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: August 23, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Arthur T. Spencer, Stanley F. Siranovich