Patents by Inventor Charles E. Sumner, Jr.

Charles E. Sumner, 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).

  • Patent number: 4791224
    Abstract: Process for the preparation of an aryloxyacetic acid/hydroxyethyl ether by oxidation of aryloxyethanol of the formula: ##STR1## wherein R either individually or independently of one another represents hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, halogen, alkylcarbonyl, arylcarbonyl, carboxyl or nitro, or represents a benzene ring fused to the phenyl ring, in an aqueous alkaline reaction medium at a temperature in the range of 0.degree. C. to the boiling point of the reaction medium in the presence of a catalytic amount of a catalyst comprised of palladium, bismuth, and carbon in the presence of a phenol corresponding to the structure: ##STR2## wherein R is as described above and p is 0, 1 or 2, to form the corresponding alkali metal ester/hydroxyethyl ether after catalyst removal the alkali metal ester is contacted with a mineral acid.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: December 13, 1988
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Eric J. Fugate
  • Patent number: 4786748
    Abstract: Alkylene or dialkyl ketal of an alpha-acetyl cinnamic acid or ester therof are obtained by reacting alpha-acetyl cinnamic acid or an ester thereof with a ketalizing agent selected from the group consisting of alkyl glycols, dialkyl detals and trialkyl orthoesters in the presence of the transition metal catalyst and an acid catalyst. Also, alkyl alpha-enol ethers of alpha-acetyl cinnamic acid are obtained by heating the alkylene or dialkyl ketals.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: November 22, 1988
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Joseph R. Zoeller
  • Patent number: 4761497
    Abstract: 2-Naphtanoic acid or ester thereof is prepared by heating a compound selected from the group consisting of ketals and enol ethers or esters of an alpha-acetyl cinnamic acid or ester thereof at a temperature effective to cyclize the compound and form said 2-naphthanoic acid or ester thereof.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: August 2, 1988
    Assignee: Eastman Kodak Company
    Inventors: Joseph R. Zoeller, Charles E. Sumner, Jr.
  • Patent number: 4761496
    Abstract: An alkylene or dialkyl ketal of the formula ##STR1## wherein R.sup.3 is halo, carboxy or (C.sub.1 -C.sub.12)alkyl, alkoxy, acyl, acyloxy, carbalkoxy or alkylthio.R.sup.1 is (C.sub.1 -C.sub.12)alkyl, (C.sub.6 -C.sub.20)aryl or (C.sub.7 -C.sub.21)alkylaryl or aralkyl; andR.sup.2 is (C.sub.1 -C.sub.12)alkyl or the two R.sup.2 taken together are (C.sub.2 -C.sub.12)alkylene.An alpha-enol ether of the formula ##STR2## wherein R.sup.1 and R.sup.3 are as defined above and R.sup.2 is (C.sub.1 -C.sub.12)alkyl.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: August 2, 1988
    Assignee: Eastman Kodak Company
    Inventors: Joseph R. Zoeller, Charles E. Sumner, Jr.