Patents by Inventor Kenneth G. Hahn, Jr.
Kenneth G. Hahn, Jr. 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).
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Patent number: 5015687Abstract: The pigmented paint coating composition is based on a cationic free polymeric binder comprising a cationic free, functional emulsion polymer and glycoluril where the emulsion polymer are adapted to coreact to form a thermoset paint film, and said polymeric binder is combined with a low-cation opacifying pigment. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium, to produce the reactive emulsion polymer. The emulsion polymer and the glycoluril derivative are treated with ion-exchange step to produce the cation-free polymeric binder.Type: GrantFiled: November 7, 1989Date of Patent: May 14, 1991Assignee: The Glidden CompanyInventors: Kenneth G. Hahn, Jr., Barbara L. Kunz
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Patent number: 4981883Abstract: A stabilized aqueous, thermosetting coating composition substantially free of acid cure catalysts comprises a mixture of an ion-exchanged reactive function emulsion polymer and a glycoluril derivative adapted to coreact and crosslink the functional polymer where certain cations are added to the ion-exchanged mixture to provide a pH of the mixture between 2 and 5.Type: GrantFiled: January 12, 1990Date of Patent: January 1, 1991Assignee: The Glidden CompanyInventors: Barbara L. Kunz, Kenneth G. Hahn, Jr.
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Patent number: 4956401Abstract: The pigmented paint coating composition is based on a cationic free polymeric binder comprising a cationic free, functional emulsion polymer and glycoluril where the emulsion polymer are adapted to coreact to form a thermoset paint film, and said polymeric binder is combined with a low-cation opacifying pigment. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium, to produce the reactive emulsion polymer. The emulsion polymer and the glycoluril derivative are treated with ion-exchange step to produce the cation-free polymeric binder.Type: GrantFiled: October 15, 1987Date of Patent: September 11, 1990Assignee: The Glidden CompanyInventors: Kenneth G. Hahn, Jr., Barbara L. Kunz
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Patent number: 4921888Abstract: A stabilized aqueous, thermosetting coating composition substantially free of acid cure catalysts comprises a mixture of an ion-exchanged reactive function emulsion polymer and a glycoluril derivative adapted to coreact and crosslink the functional polymer where certain cations are added to the ion-exchanged mixture to provide a pH of the mixture between 2 and 5.Type: GrantFiled: January 19, 1988Date of Patent: May 1, 1990Assignee: The Glidden CompanyInventors: Barbara L. Kunz, Kenneth G. Hahn, Jr.
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Patent number: 4900592Abstract: An aqueous thermosetting protective coating composition cures by water evaporation followed by thermosetting crosslinking of the polymeric binder. The polymeric binder is ion-exchanged to remove cations and reduce the pH to less than 2.5 and comprises copolymerized ethylenic monomers including a beta-hydroxy ester monomer, whereby the polymer is self-curing by crosslinking by transesterification through hydroxy groups and beta-ester groups.Type: GrantFiled: February 6, 1989Date of Patent: February 13, 1990Assignee: The Glidden CompanyInventors: Kenneth G. Hahn, Jr., Gary P. Craun
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Patent number: 4853422Abstract: A paint coating comprising a self-curing emulsion polymer having functional carboxyl groups or hydroxyl groups as well as alkylol acrylamide, but is substantially free of amine groups, where the self-curing emulsion polymer is ion-exchanged to render said polymer self-curing.Type: GrantFiled: October 31, 1988Date of Patent: August 1, 1989Assignee: The Glidden CompanyInventor: Kenneth G. Hahn, Jr.
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Patent number: 4812491Abstract: A paint coating comprising a self-curing emulsion polymer having functional carboxyl groups or hydroxyl groups as well as alkylol acrylamide, but is substantially free of amine groups, where the self-curing emulsion polymer is ion-exchanged to render said polymer self-curing.Type: GrantFiled: February 18, 1988Date of Patent: March 14, 1989Assignee: The Glidden CompanyInventor: Kenneth G. Hahn, Jr.
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Patent number: 4789694Abstract: The paint coating composition comprises a cationic free, functional emulsion polymer mixture adapted to be coreacted at room temperature with glycoluril to provide a cured thermoset paint film. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers, but excluding amine monomers, in an aqueous polymerization medium, followed by ion exchange of the resulting reactive emulsion polymer. Preferably, the glycoluril is processed through an ion exchange step separately or in conjunction with the reactive emulsion polymer. The resulting polymers are useful as binders in ambient cure surface coating application.Type: GrantFiled: September 24, 1987Date of Patent: December 6, 1988Assignee: The Glidden CompanyInventor: Kenneth G. Hahn, Jr.
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Patent number: 4728680Abstract: The composition comprises a cationic free, functional emulsion polymer mixture adapted to be coreacted with glycoluril. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium. The resulting polymers are useful in surface coating application generally as well as specifically for wood substrates.Type: GrantFiled: December 19, 1986Date of Patent: March 1, 1988Assignee: The Glidden CompanyInventor: Kenneth G. Hahn, Jr.
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Patent number: 4521495Abstract: A process for treating wood substrate, including textured hardboard having surface irregularities consisting of high ridge areas protruding above the surface, with a low viscosity aqueous coating to produce a coated article having substantially uniform film thickness. A substantially uniform film can be obtained by preheating the substrate (about 250.degree. to 400.degree. F.), flooding the surface with the aqueous coating, partially dewatering and affixing the coating to the surface by coalescence and removing the excess coating. It is necessary to critically control the substrate temperature and time in which the coating remains in contact with the heated substrate before the excess coating is removed using an air knife.Type: GrantFiled: June 25, 1984Date of Patent: June 4, 1985Assignee: SCM CorporationInventor: Kenneth G. Hahn, Jr.
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Patent number: 4444941Abstract: Thermosetting low temperature cure coating compositions produced by combining certain acrylamide emulsion polymers containing both carboxyl and hydroxyl groups with a glycoluril whereby both the carboxyl and hydroxyl groups cross-link with the glycoluril upon curing.Type: GrantFiled: September 1, 1982Date of Patent: April 24, 1984Assignee: SCM CorporationInventors: David A. Borovicka, Sr., Kenneth G. Hahn, Jr., John T. Tupa
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Patent number: 4442257Abstract: Thermosetting low temperature cure coating compositions produced by combining certain emulsion polymers containing reactive hydroxyl groups, carboxyl groups, and acrylamide groups with a dimethylol dihydroxy ethylene urea whereby the hydroxyl groups cross-link with the dimethylol dihydroxy ethylene urea upon curing. Preferred emulsion polymers are acrylamide polymers.Type: GrantFiled: October 22, 1982Date of Patent: April 10, 1984Assignee: SCM CorporationInventors: David A. Borovicka, Sr., Kenneth G. Hahn, Jr., John T. Tupa