Patents Represented by Attorney Mark A. Montgomery

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  • Poly(3-hydroxyalkanoates)
    Patent number: 5391708
    Abstract: Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: February 21, 1995
    Assignee: Eastman Chemical Company
    Inventors: John C. Hubbs, Marti N. Harrison, Charles Buchanan
  • Polyolefin-extrusion coating compositions having good coatability, good adhesion to the substrate, and good chill roll release
    Patent number: 5387630
    Abstract: Disclosed is a novel polyethylene composition that is a blend of a polyethylene component having defined properties, a specific quantity of a defined tackifying resin and a very specific minute quantity of a unique amide of a fatty acid. The novel composition can be used in a process for extrusion coating at high speeds and relatively low extrusion coating temperatures with good adhesion to the substrate and dramatically improved chill roll release.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: February 7, 1995
    Assignee: Eastman Chemical Company
    Inventors: Ray Edwards, Bruce W. Foster
  • Urea derivatives of maleated polyolefins
    Patent number: 5384375
    Abstract: Compositions are disclosed that are the urea derivatives of succinylated polyolefins (maleated polyolefins). The urea derivatives of succinylated polyolefins are of the formula; ##STR1## wherein R is a polyolefin attached at any point along the hydrocarbon chain. The urea derivative of succinylated polyolefins is useful as a coupling agent to couple polyolefins with dissimilar polymers having an excess of unreacted acid groups such as polyesters.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: January 24, 1995
    Assignee: Eastman Kodak Company
    Inventor: Thomas D. Roberts
  • Modified polyethylene based hot-melt adhesives for use in packaging
    Patent number: 5382615
    Abstract: Hot-melt adhesive compositions useful for packaging are disclosed. These hot-melt adhesive compositions are based on modified polyethylene and contain an ethylene-alkylacrylate copolymer, a polyethylene graft copolymer, a tackifying resin, and a high-melting low viscosity wax. The hot-melt adhesive compositions disclosed have fast setting times and a novel combination of desired properties with good high and low temperature bond strength.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: January 17, 1995
    Assignee: Eastman Chemical Company
    Inventor: Darryl A. Godfrey
  • Oxidative coupling of alpha, beta unsaturated aldehydes
    Patent number: 5382700
    Abstract: A process for producing dimeric unsaturated aldehydes from alpha, beta unsaturated aldehyde is disclosed. This process is conducted by contacting the alpha, beta unsaturated aldehyde with a copper (II) catalyst and a complexing amine catalyst in a medium with a relatively high dielectric constant in substantially anhydrous and aprotic conditions.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: January 17, 1995
    Assignee: Eastman Chemical Company
    Inventor: William A. Beavers
  • Water-dissipatable alkyd resins and coatings prepared therefrom
    Patent number: 5378757
    Abstract: Disclosed is a water-dissipatable alkyd resin containing a sulfonate group. The alkyd resin is prepared by reacting at least one monoglyceride, a polycarboxylic acid, and a polyol sulfomonomer adduct containing at least one sulfonate group. The alkyd resin is useful to prepare cross-linked coatings such as obtained with oil based paints.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: January 3, 1995
    Assignee: Eastman Chemical Company
    Inventors: William W. Blount, Jr., Thauming Kuo
  • Lubricant-impregnated fibers, lubricant, and processes for preparation thereof
    Patent number: 5372739
    Abstract: Fibers such as caustic-treated non-round polyester fibers are prepared having certain lubricants strongly adhered to the surfaces thereof. These fibers are prepared by contacting the fibers, such as immediately prior to a crimping device, with a suitable heated hydrophilic lubricant in a processing operation followed by heating to dry or bake the lubricant onto and/or into the surface of the fibers.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: December 13, 1994
    Assignee: Eastman Chemical Company
    Inventors: Richard D. Neal, Shriram Bagrodia, Lewis C. Trent, Mark A. Pollock
  • High clarity emulsions containing high melt viscosity maleated polypropylene wax
    Patent number: 5360862
    Abstract: A process is provided for the production of an emulsifiable polypropylene wax having a melt viscosity from 1000 to 5000 cP at 190.degree. C. This process entails reacting at a temperature below 190.degree. C. a thermally degraded polypropylene wax having a melt viscosity below 1000 cP (at 190.degree. C.) with maleic anhydride in the presence of a free radical source. Floor polish formulations containing this polypropylene wax are very clear but yet provide floor finishes that are very tough.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: November 1, 1994
    Assignee: Eastman Chemical Company
    Inventors: Thomas D. Roberts, Thomas W. Smith, Charlene A. Galvin
  • Solid-form additive systems dispersible in aqueous media and method for their preparation
    Patent number: 5358560
    Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems. The additive systems are dry, free-flowing particulate materials that contain at least one additive component, at least one tackifying agent, and at least one surfactant.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: October 25, 1994
    Assignee: Eastman Chemical Company
    Inventors: Brenda J. Hitch, Mahendra K. Sharma, Leo P. Voetgli
  • Extrusion coating process for producing a high gloss polyethylene coating
    Patent number: 5350476
    Abstract: A process of producing a high gloss oxidizable extrusion coated polyethylene is provided. This process entails extrusion coating a low density polyethylene of narrow molecular weight distribution having a low melt index, a low swell ratio, and a polydispersity index below 9.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Chemical Company
    Inventor: Ray Edwards
  • Water-dispersible polyester resins and process for their preparation
    Patent number: 5349010
    Abstract: Disclosed is a water-dissipatable or dispersible polyester containing sulfonate groups that has improved stability prepared from a monocarboxylic acid sulfomonomer. This polyester can be prepared in a one or two step process but the preferred two step process entails polymerizing the reactants wherein the monocarboxylic acid sulfomonomer has been pre-reacted with a monofunctional reactant containing at least three hydroxyl groups to form a diol adduct.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: September 20, 1994
    Assignee: Eastman Chemical Company
    Inventor: Thauming Kuo
  • Polypropylene-graft-unsaturated polyester compositions and process for the production thereof
    Patent number: 5342892
    Abstract: A propylene-graft-unsaturated polyester is disclosed comprising the reaction product of a polypropylene, an unsaturated polyester and a free radical initiator. The polypropylene-graft-unsaturated polyester is generally prepared by reacting at elevated temperatures using a peroxide. The polypropylene-graft-unsaturated polyester is very useful as a compatibilizing agent in blends of polyester and ethylene-propylene rubber to improve the impact strength of the polyester.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: August 30, 1994
    Assignee: Eastman Chemical Company
    Inventors: Jeffrey J. Vanderbilt, Max F. Meyer, Jr.
  • Aqueous additive systems, methods and polymeric particles
    Patent number: 5334644
    Abstract: Aqueous application systems for applying additives to polymeric particles, methods of preparing aqueous emulsions which include at least one processing, stabilizing or other functional polymer additive and an emulsifiable wax. Also disclosed are methods of applying additives to polymeric particles and to polymeric particles treated by such methods.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: August 2, 1994
    Assignee: Eastman Chemical Company
    Inventors: William C. Gose, Kenneth W. Hyche
  • Aqueous dispersion useful in coatings containing hydrolyzed cellulose ester and acyrlic resin
    Patent number: 5334638
    Abstract: A stable aqueous dispersion and process for making the dispersion are provided containing hydrolyzed cellulose ester, organic solvent, water and acrylic resin having free acid functionalities that are at least partially neutralized. The dispersion is useful in coatings and can also contain surfactant and cross-linking agent.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: August 2, 1994
    Assignee: Eastman Chemical Company
    Inventors: Chung M. Kuo, Larry G. Curtis, Paul L. Lucas
  • Elastomeric composition containing elastomer and amorphous propylene/hexene copolymer
    Patent number: 5330829
    Abstract: An elastomeric composition is prepared containing an amorphous propylene/hexene copolymer and an elastomer selected from styrene butydiene styrene block copolymers.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: July 19, 1994
    Assignee: Eastman Chemical Company
    Inventor: Richard A. Miller
  • Low softening point homopolypropylene wax
    Patent number: 5330568
    Abstract: A low molecular weight crystalline homopolypropylene wax of low softening point is disclosed. This homopolypropylene wax is prepared from high molecular weight crystalline polypropylene by thermal degradation in the presence of a relatively high amount of peroxide.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: July 19, 1994
    Assignee: Eastman Chemical Company
    Inventors: Vernon K. Park, Randal R. Ford, Robert P. Allen
  • Depolymerization of substantially amorphous polyesters
    Patent number: 5328982
    Abstract: Ester bonds are hydrolyzed in the conversion of substantially amorphous polyesters to their monomeric components, by being contacted with a mixture of (a) an alcohol, such as methanol, or glycol, (b) a polar aprotic solvent such as N-methyl-pyrrolidone or dimethyl sulfoxide and (c) an alkoxide or hydroxide such as sodium hydroxide.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: July 12, 1994
    Assignee: Eastman Chemical Company
    Inventors: George W. Tindall, Randall L. Perry, Art T. Spaugh, Jr.
  • Aqueous dispersion compositions and coatings prepared therefrom
    Patent number: 5322885
    Abstract: Disclosed is pigmented dispersion containing a non-amine wetting and dispersing agent and a water-dissipatable or dispersible polyester containing sulfonate groups that has improved stability having a substantial number of capped carboxyl groups attached to the sulfomonomer moieties. This polyester can be prepared by capping the carboxyl end groups of the polyester with oxirane compounds or by polymerizing the reactants wherein one reactant is a diol that is a diester adduct of a glycol and a dicarboxylic acid sulfomonomer.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: June 21, 1994
    Assignee: Eastman Chemical Company
    Inventor: Thauming Kuo
  • 1-acetoacetamido-2,3-propane diol monomer and polyesters prerpared therefrom
    Patent number: 5321118
    Abstract: Disclosed is a novel monomer composition and its preparation that is useful in the production of polyesters. This novel monomer composition is 1-acetoacetamido-2,3-propane diol and can be used in the preparation of polyesters in combination with a dicarboxylic acid.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: June 14, 1994
    Assignee: Eastman Chemical Company
    Inventors: John C. Hubbs, Robert J. Clemens
  • Spring spreading tool
    Patent number: 5311798
    Abstract: A tool for spreading high tension springs used in the brakes of heavy equipment is provided. This tool spreads at least a portion of a high tension spring by squeezing the handles together by hand thereby separating the arms. This is the opposite of what happens when the handles of standard pliers are squeezed together.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: May 17, 1994
    Inventor: Michael T. Trusky