Patents by Inventor Peter W. Raynolds

Peter W. Raynolds 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).

  • Polymer blends for aqueous dispersions having improved freeze-thaw stability
    Patent number: 5268412
    Abstract: Disclosed are polymer blends of polyesters or polyesteramides and a polymer containing an acrylamide sulfonate monomer. The blends are preferably prepared by polymerizing monomers in the presence of the polyester or polyesteramide. The blends impart superior freeze-thaw stability to aqueous compositions such as inks.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: December 7, 1993
    Assignee: Eastman Kodak Company
    Inventor: Peter W. Raynolds
  • Ink reservoir containing modified polyester fibers
    Patent number: 5124205
    Abstract: Disclosed is a novel ink reservoir containing a polyester fiber, such as a poly(ethylene terephthalate) fiber, having at least one continuous groove. The surface of the groove of the fiber is preferably rougher than the surface outside the groove. The ink reservoirs are useful for use with aqueous inks and have improved ink transport properties.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: June 23, 1992
    Assignee: Eastman Kodak Company
    Inventors: Peter W. Raynolds, Shriram Bagrodia
  • Ink reservoir containing modified polyester fibers
    Patent number: 4996107
    Abstract: Disclosed is a novel ink reservoir containing a polyester fiber, such as a poly(ethylene terephthalate) fiber, having at least one continuous groove. The surface of the groove of the fiber is preferably rougher than the surface outside the groove. The ink reservoirs are useful for use with aqueous inks and have improved ink transport properties.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: February 26, 1991
    Assignee: Eastman Kodak Company
    Inventors: Peter W. Raynolds, Shriram Bagrodia
  • Process for the preparation of alkyl 3-alkoxypropionates
    Patent number: 4827021
    Abstract: Disclosed is an improved process for the preparation of alkyl 3-alkoxypropionates by the reaction of a dialkoxymethane with a diketene in the presence of methanedisulfonic acid, methanetrisulfonic acid or mixture thereof.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 2, 1989
    Assignee: Eastman Kodak Company
    Inventors: Glenn C. Jones, William D. Nottingham, Peter W. Raynolds
  • Process for the preparation of alkyl 3-alkoxypropionates
    Patent number: 4785133
    Abstract: Disclosed is an improved process for the preparation of alkyl 3-alkoxypropionates containing at least seven carbon atoms by the reaction of dialkoxymethane containing five or more carbon atoms with a ketene in the presence of a catalytic amount of the reaction product of an alkylcarboxylic acid anhydride and concentrated or fuming sulfuric acid.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: November 15, 1988
    Assignee: Eastman Kodak Company
    Inventors: Peter W. Raynolds, Glenn C. Jones
  • Process for the purification of diethoxymethane from a mixture with ethanol and water
    Patent number: 4740273
    Abstract: A process for purifying diethoxymethane from a mixture containing ethanol and, optionally, water. The process involves the addition of an amount of water, DEM, or an appropriate mixture of any two or three of water, DEM and ethanol that is effective in moving the mixture into the two liquid phase region on an equilibrium tie-line which crosses the critical distillation boundary without the need for additional azeotrope-forming agents such as cyclohexane.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: April 26, 1988
    Assignee: Eastman Kodak Company
    Inventors: Daniel L. Martin, Peter W. Raynolds
  • Process for the separation of meta and para isomers of the sodium salt of bromophenol
    Patent number: 4366329
    Abstract: Disclosed is a novel process for the separation of meta and para isomers of the sodium salt of bromophenol. Derivatives of the sodium salt of metabromophenol are useful chemical intermediates.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: December 28, 1982
    Assignee: Eastman Kodak Company
    Inventor: Peter W. Raynolds
  • Preparation of thiophene compounds
    Patent number: 4307239
    Abstract: Disclosed is a process for the preparation of thiophenes having the formula ##STR1## by contacting a compound having the formula ##STR2## with certain amine bases. Other amine bases can be employed when a two-phase reaction system is used.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: December 22, 1981
    Assignee: Eastman Kodak Company
    Inventor: Peter W. Raynolds