Patents by Inventor John R. Dombroski
John R. Dombroski 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: 5266644Abstract: The invention relates to epoxy-terminated polymers and copolymers derived from hydrosilyl-terminated hydrogenated polydienes and polyvinyl aromatics, and a process for preparing these polymers and copolymers. The epoxy-terminated polymers and copolymers are reactive with a variety of polymer functionalities such as carboxyl, hydroxyl, and amino groups to produce copolymers useful as molded articles and as compatibilizers for compositions containing polyesters and polyolefins.Type: GrantFiled: November 2, 1992Date of Patent: November 30, 1993Assignee: Eastman Kodak CompanyInventors: Judy S. Riffle, John V. Facinelli, John R. Dombroski, Ramesh B. Jayaraman, Scott E. George
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Patent number: 4593082Abstract: Disclosed is a method of producing high molecular weight copolymers from vinyl monomers such as vinylpyridine and styrene by emulsion polymerization which comprises combining the monomers with a particular surfactant, a polymerization initiator in an aqueous medium at a solids level of about 5-50% by weight, and carrying out the polymerization at a pH of about 10-14 at a temperature of about 45.degree.-90.degree. C. until the conversion is greater than 90%.Type: GrantFiled: July 26, 1985Date of Patent: June 3, 1986Assignee: Eastman Kodak CompanyInventors: John R. Dombroski, Waylon L. Jenkins
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Patent number: 4547329Abstract: Disclosed is a process for the formation of olefin-vinyl alcohol copolymer pellets which comprises mixing particles of the copolymer with water to obtain a wet cake containing about 20-70% solids by weight to thereby obtain a plasticized mass of the copolymer, thereafter extruding the copolymer at a temperature of about 5.degree.-7.degree. C. below the melting point of the mass through a nozzle to form a rod, and dividing the rod into individual pellets.Type: GrantFiled: October 31, 1983Date of Patent: October 15, 1985Assignee: Eastman Kodak CompanyInventors: John R. Dombroski, J. Maynard Hawkins, Mark A. Pollock, Alan P. Leonard, Thomas A. Mitchell
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Patent number: 4355136Abstract: Disclosed are compositions comprising a polyester derived from 100 mole % of an acid component and 100 mole % of a glycol component, the acid component comprising about 30-90 mole % of at least one .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid and about 70-10 mole % of a compound containing a cinnamic acid moiety, and the glycol component comprising at least one saturated aliphatic glycol containing from 2 to 10 carbon atoms. These compositions have improved resistance to attack by organic solvents.Type: GrantFiled: January 4, 1982Date of Patent: October 19, 1982Assignee: Eastman Kodak CompanyInventors: John R. Dombroski, Fred W. Light, Jr.
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Patent number: 4299927Abstract: Disclosed are polymer compositions comprising from about 75 to about 99% by weight of the reaction product of(a) from about 50 to about 90% by weight, based on the weight of the reaction product, of an ethylenically unsaturated polyester derived from an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, and(b) from about 50 to about 10% by weight, based on the weight of the reaction product, of a modified polyolefin derived from an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin.The compositions preferably include from about 25 to about 1% by weight of a polymer or copolymer of an olefin in the reaction product, the polymer or copolymer having a molecular weight of from about 500 to about 50,000. The compositions also preferably include as compatibilizing agent an alkyl or alkenyl anhydride, the alkyl or alkenyl groups having from 8 to 22 carbon atoms.Type: GrantFiled: May 5, 1980Date of Patent: November 10, 1981Assignee: Eastman Kodak CompanyInventor: John R. Dombroski
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Patent number: 4263183Abstract: Blended composition of cellulose ester and a copolyacrylate having improved notched Izod impact strength and excellent visual clarity; the cellulose ester being selected from cellulose acetate butyrate and cellulose acetate propionate; and the copolyacrylate including about 5 to about 20 parts per hundred parts resin of a copolymer containing about 45 to about 55% by weight butyl acrylate and about 55 to about 45% by weight methyl acrylate.Type: GrantFiled: October 31, 1979Date of Patent: April 21, 1981Assignee: Eastman Kodak CompanyInventors: Ronald R. Light, John R. Dombroski, Hawkins, James M.
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Patent number: 4258143Abstract: Disclosed are polymer compositions comprising from about 75 to about 99% by weight of the reaction product of(a) from about 50 to about 90% by weight, based on the weight of the reaction product, of an ethylenically unsaturated polyester derived from an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, and(b) from about 50 to about 10% by weight, based on the weight of the reaction product, of a modified polyolefin derived from an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin.The compositions preferably include from about 25 to about 1% by weight of a polymer or copolymer of an olefin in the reaction product, the polymer or copolymer having a molecular weight of from about 500 to about 50,000.Type: GrantFiled: July 5, 1979Date of Patent: March 24, 1981Assignee: Eastman Kodak CompanyInventors: John R. Dombroski, Max F. Meyer, Jr.
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Patent number: 4136138Abstract: An adhesive composition comprising Components A, B and C as follows:A. a polymerizable monomeric 2-cyanoacrylate containing portion comprising1. from 60 to 90 parts by weight of allyl 2-cyanoacrylate;2. from 3 to 25 parts by weight of an alkyl 2-cyanoacrylate having the formula ##STR1## wherein R is alkyl having 60 to 10 carbon atoms; 3. FROM 0.25 TO 5 PARTS BY WEIGHT OF A DIFUNCTIONAL MONOMER DIESTER OF AN ACID FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACID AND AN AROMATIC DIOL; AND4. from 3 to 15 parts by weight of a 2-cyanoacrylate compatible polymeric thickener;B. from 0.05 to about 1.5 weight percent based upon the weight of component A of a cyclic imino initiator selected from 2,4,6-tri(allyloxy)-S-triazine, 2,4,6-tri(alkyloxy)-S-triazines having 1 to about 20 exocyclic carbon atoms, benzoxazole and substituted benzoxazoles; andC. an amount of an organic peroxide free radical providing compound sufficient to cause crosslinking of a difunctional monomer diester with the 2-cyanoacrylates.Type: GrantFiled: July 23, 1976Date of Patent: January 23, 1979Assignee: Eastman Kodak CompanyInventors: John R. Dombroski, Diane M. Stoakley
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Patent number: 4134929Abstract: An adhesive composition comprising Components A, B and C as follows:A. a polymerizable monomeric allyl 2-cyanoacrylate containing portion comprising1. from about 75 to about 92 parts by weight of allyl 2-cyanoacrylate;2. from about 1 to about 12 parts by weight of a difunctional monomer diester of an acid from the group consisting of acrylic and methacrylic acid and an aromatic diol; and3. from about 3 to 20 parts by weight of a thickening agent selected from poly(methylacrylate-coacrylonitrile) polymers;B. from 0.1 to 3.0 weight percent based upon the weight of component A of a hydrophobic cyclic imino initiator selected from 2,4,6-tri(allyloxy)-S-triazine, tri(alkyloxy)-S-triazines having 1 to about 20 exocyclic carbon atoms, benzoxazole and substituted benzoxazoles; andC. an amount of an organic peroxide free radical providing compound sufficient to cause cross linking of the difunctional monomer diester with the allyl 2-cyanoacrylate.Type: GrantFiled: July 23, 1976Date of Patent: January 16, 1979Assignee: Eastman Kodak CompanyInventors: Diane M. Stoakley, John R. Dombroski
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Patent number: 4042442Abstract: Adhesive composition comprisingA. at least one monomeric ester of 2-cyanoacrylic acid, andB. at least one polymerization initiator selected from caffeine and theobromine.Type: GrantFiled: November 29, 1976Date of Patent: August 16, 1977Assignee: Eastman Kodak CompanyInventors: John R. Dombroski, Doyle A. Weemes
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Patent number: T101903Abstract: Free radical promoters for use in curing resin compositions comprising an unsaturated polyester and an ethylenically unsaturated copolymerizable monomer are disclosed for use with conventional initiators. The free radical promoters comprise ferrocene or ferrocene substituted on one or both cyclopentadienyl rings with an alkyl, alkoxy, hydroxyl, carboxyl, carboxaldehyde, hydroxyalkyl, amino, halo, cycloalkyl, or aryl radical.Type: GrantFiled: April 24, 1981Date of Patent: June 1, 1982Inventor: John R. Dombroski