Patents by Inventor Jo Ann Gilpin

Jo Ann Gilpin 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).

  • Copper salts as catalysts for monomers having at least one cyclobutarene group
    Patent number: 4791182
    Abstract: A catalytic amount of a finely divided copper salt catalyst is added to a monomer having at least one cyclobutarene group to lower the peak temperature of the polymerization oxotherm.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: December 13, 1988
    Assignee: Dow Chemical Company
    Inventors: Robert A. Kirchhoff, Jo Ann Gilpin, Cynthia Baker, Michael O. Myers
  • Adhesive compositions from arylcyclobutene monomeric compositions
    Patent number: 4743399
    Abstract: Two solid substrates are bonded together by using a functionally effective amount of an arylcyclobutene monomeric composition as an adhesive.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: May 10, 1988
    Assignee: The Dow Chemical Company
    Inventors: Robert A. Kirchhoff, Jo Ann Gilpin
  • Adhesive compositions for arylcyclobutene monomeric compositions
    Patent number: 4661193
    Abstract: Two solid substrates are bonded together by using a functionally effective amount of an arylcyclobutene monomeric composition as an adhesive.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: April 28, 1987
    Assignee: The Dow Chemical Company
    Inventors: Robert A. Kirchhoff, Jo Ann Gilpin
  • Chloromethylation of deactivated aromatic compounds
    Patent number: 4562280
    Abstract: The invention is a process for the chloromethylation of an aromatic compound, substituted with an alkyl group and a deactivating moiety, which comprises contacting an aromatic compound, substituted with an alkyl group and a deactivating group, with a chloromethyl alkyl ether in the presence of a catalytic amount of ferric chloride or stannic chloride, under conditions such that an aromatic compound, substituted with an alkyl group, a chloromethyl group, and a deactivating group, wherein the alkyl and chloromethyl groups are on adjacent carbon atoms, is prepared.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: December 31, 1985
    Assignee: The Dow Chemical Company
    Inventors: Jo Ann Gilpin, Lowell B. Lindy
  • Inhibitors for furfurals
    Patent number: 4433155
    Abstract: Furfural or derivatives thereof, especially 5-chloromethyl furfural, is inhibited against the formation of resinous decomposition products by addition of epoxy compounds such as the reaction product of epichlorohydrin and bisphenol A.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: February 21, 1984
    Assignee: The Dow Chemical Company
    Inventor: Jo Ann Gilpin
  • Adsorption and recovery of rifamycin B and rifamycin S using basic ion exchange resins
    Patent number: 4402877
    Abstract: The use of basic ion exchange resins to adsorb rifamycin B or rifamycin S from dilute solutions containing rifamycin B or rifamycin S is disclosed. The rifamycin B or rifamycin S may be recovered from the resin by desorption with a suitable desorbing solvent system.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: September 6, 1983
    Assignee: The Dow Chemical Company
    Inventors: Jo Ann Gilpin, Patrick J. Oriel, Roger A. Briggs
  • Process for preparing rifamycin S using a strong acid cation exchange resin
    Patent number: 4193919
    Abstract: A process for converting rifamycin O to rifamycin S using a strong acid cation exchange resin to catalyze the reaction and a solvent containing up to about 13% water to dissolve the rifamycin derivatives.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: March 18, 1980
    Assignee: The Dow Chemical Company
    Inventors: Roger A. Briggs, Jo Ann Gilpin