Patents by Inventor Marvis E. Hartman

Marvis E. Hartman 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: 4403093
    Abstract: Ungelled polyester oligomers which are formed from reacting polyols, 1,2-dicarboxylic acid anhydrides and polyepoxides are disclosed. The polyesters are useful as resinous binders in high solids coating compositions. The coating compositions can be applied by spraying and do not result in a tacky overspray common with many high solids coating compositions.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: September 6, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Marvis E. Hartman, Barbara A. Greigger, Rostyslaw Dowbenko
  • Patent number: 4260716
    Abstract: Quaternary ammonium hydroxide-containing polymers and their use in coating applications are disclosed. The quaternary ammonium hydroxide-containing polymers are prepared from reacting a polyglycidyl ether of a cyclic polyol with a tertiary amine in the presence of a sufficient amount of water for the formation of quaternary hydroxide groups.The quaternary ammonium hydroxide-containing polymers are particularly good as electrocoating resins in that they electrodeposit without generating acid counterion. They are also good in other conventional coating applications such as dip, flow, spray and roll coating in that the resulting coating can be baked without the generation of corrosive acid.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: April 7, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Roger M. Christenson, Joseph F. Bosso, Marvis E. Hartman, Wen-Hsuan Chang
  • Patent number: 4174333
    Abstract: Carboxylated amide polymers and coating compositions containing same are especially useful for the coating of food and beverage containers. The carboxylated amide polymers are the reaction product of (1) a compound of formula: ##STR1## wherein A is the organic residue resulting from a ring opening reaction of a 1,2-epoxy group on a polyepoxide with ammonia or amine, R.sub.1 is hydrogen or a C.sub.1-4 alkyl group, R.sub.2 is a C.sub.2-12 alkylene group, x is 0 or 1, y is from 0 to 4, R.sub.3 is hydrogen or a C.sub.1-6 alkyl group, R.sub.4 is hydrogen or a C.sub.1-6 alkyl group, provided at least one R.sub.1, R.sub.3 or R.sub.4 is hydrogen, and n is at least 1.0 with (2) a cyclic anhydride of a dibasic carboxylic acid. The carboxylated amide polymers can be made water reducible by neutralizing the polymer with an organic or inorganic base and used in aqueous coating compositions.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: November 13, 1979
    Assignee: PPG Industries, Inc.
    Inventors: Marvis E. Hartman, Thomas R. Hockswender
  • Patent number: 4171413
    Abstract: Non-gelled acrylic-hydrazide resins are prepared by reacting hydrazine with a non-gelled acrylic polymer containing a functional group reactive with hydrazine to cause hydrazide formation.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: October 16, 1979
    Assignee: PPG Industries, Inc.
    Inventors: Marvis E. Hartman, Rostyslaw Dowbenko, Thomas R. Hockswender
  • Patent number: 4153586
    Abstract: A process of making modified epoxy resins wherein a polyepoxide resin is reacted with a mercaptan compound of the formula HS--R--(COOX).sub.m wherein R is an organic radical having from 1 to 10 carbon atoms, X is hydrogen or a moiety formed by reacting the carboxyl group with a basic compound to form its salt and m is an integer of from 1 to 5. The compounds are reacted in the presence of a tin catalyst to produce resins of the structureB [--S--R--(COOX).sub.m ].sub.nwherein B is the residue from the ring opening reaction of an epoxide group on the polyepoxide resin molecule and the sulfhydryl hydrogen, R, X and m are as defined previously and n is at least 1. The aforementioned resins are produced without the need of a hydrolysis step.The modified epoxy resins are useful in formulating coating compositions having excellent physical and chemical properties. The resins can be dissolved or dispersed in water to form aqueous coating compositions.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: May 8, 1979
    Assignee: PPG Industries, Inc.
    Inventors: Thomas R. Hockswender, Marvis E. Hartman
  • Patent number: 4093673
    Abstract: Resinous compositions useful as coating compositions comprise blends of hydroxyfunctional polymers; organoalkoxy silane crosslinking agents represented by the formula:R.sub.n Si(OR').sub.4-nwherein R is an aryl, alkaryl, aralkyl, alkyl having 1 to 8 carbon atoms, XR .sub.4 --or ##STR1## RADICAL, WHEREIN R.sub.1 is hydrogen or an alkyl radical of 1 to 6 carbon atoms, R.sub.2 is a member selected from the group consisting of alkylene radicals of 1 to 7 carbon atoms and carbonyloxy radicals represented by the formula: ##STR2## wherein R.sub.3 is an alkylene radical of 1 to 6 carbon atoms, wherein R.sub.4 is an alkylene radical of 1 to 6 carbon atoms, a cycloalkylene radical, or an arylene radical and X is a functional group selected from the group consisting of --OH, --SH, ##STR3## halogen, NH.sub.2 --, ##STR4## and NH.sub.2 --CH.sub.2 --CH.sub.2 --NH--, and wherein R' is methyl, ethyl, 2-methoxyethoxy, 2-ethoxyethoxy, m is 0 or 1 and n is 0, 1 or 2; and cure accelerating catalysts.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: June 6, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Rostyslaw Dowbenko, Marvis E. Hartman, Samuel Porter, Jr.
  • Patent number: 4081341
    Abstract: Quaternary ammonium hydroxide-containing polymers and their use in cationic electrodeposition are disclosed. The quaternary ammonium hydroxide-containing polymers are particularly useful as feed resins for controlling the pH of aqueous dispersions of acidified cationic resins used in electrodeposition. Upon electrodeposition, such resins generate acid which can build up to undesirable levels in the electrodeposition bath. The quaternary ammonium hydroxide-containing polymers are strong bases and when fed into the bath react with the acid to form the corresponding quaternary ammonium salt. This controls the pH of the bath at acceptable levels and provides additional cationic resin for electrodeposition. Utilizing the invention in this manner minimizes the need for controlling acid build-up in the electrodeposition bath by conventional techniques such as by treating the bath with ultrafiltration or electrodialysis.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: March 28, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Roger M. Christenson, Joseph F. Bosso, Marvis E. Hartman, Wen-Hsuan Chang
  • Patent number: 4043953
    Abstract: The potlife of an ambient temperature, moisture-curable coating composition comprising an acrylic-silane interpolymer and a cure-accelerating catalyst is increased by the addition to the composition of from about 0.5 percent to about 15 percent by weight of interpolymer solids of a monomeric hydrolytically reactive organo-silicon compound represented by the structural formula:X.sub.n Si(OR).sub.4-nwherein X is an organic radical having from 1 to 12 carbon atoms, R is methyl, ethyl, 2-methoxyethyl, 2-ethoxyethyl, or an acyl group containing 5 or less carbon atoms and n is 0, 1 or 2.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: August 23, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Marvis E. Hartman, Roger L. Scriven
  • Patent number: 4029621
    Abstract: Aqueous coating compositions which may be applied by conventional coating techniques as well as by electrodeposition are provided by reacting an epoxy-containing organic material with a compound containing a mercaptan group and at least one group hydrolyzable to a carboxyl group. Examples of such hydrolyzable groups include ester groups, amide groups and nitrile groups. The resultant product is then hydrolyzed and solubilized using hydrolyzing agents such as aqueous alkali metal hydroxides and aqueous solutions of various amines.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: June 14, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Marvis E. Hartman, Thomas R. Hockswender, Rostyslaw Dowbenko, Roger M. Christenson
  • Patent number: 3997485
    Abstract: An ambient temperature, moisture curable coating composition which dries to form films having excellent gloss characteristics comprises a blend of (1) a silicon-containing acrylic interpolymer; (2) a graft copolymer having an alkyd resin backbone and a polymeric side chain segment of polymerized acrylic and organoalkoxysilane monomers; and (3) a cure accelerating catalyst.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: December 14, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Rostyslaw Dowbenko, Marvis E. Hartman
  • Patent number: 3962522
    Abstract: Cured coatings having a high degree of extensibility and other desirable properties are obtained from compositions comprising a hydroxyl-containing, urethane reaction product containing a polyester component and an amine-aldehyde resin. Preferred compositions contain a polymeric polyol of low glass transition temperature. These compositions are storage-stable in one package, and the cured coatings are adherent, durable and highly extensible. These coatings are particularly useful on resilient and rubbery substrates, such as foam rubber, polyurethane foam and vinyl foam, and on soft metal surfaces such as mild steel and aluminum.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: June 8, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Marvis E. Hartman
  • Patent number: 3954899
    Abstract: Cured coatings having a high degree of extensibility and other desirable properties are obtained from compositions comprising a hydroxyl-containing, urethane reaction product containing a polyester component and an amine-aldehyde resin. Preferred compositions contain a polymeric polyol of low glass transition temperature. These compositions are storage-stable in one package, and the cured coatings are adherent, durable and highly extensible. These coatings are particularly useful on resilient and rubbery substrates, such as form rubber, polyurethane foam and vinyl foam, and on soft metal surfaces such as mild steel and aluminum.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: May 4, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Marvis E. Hartman