Patents by Inventor Glendon D. Kyker

Glendon D. Kyker 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: 4255597
    Abstract: There is disclosed a process for the production of hexachlorocyclopentadiene comprising the steps of:1. Reacting liquid cyclopentadiene and chlorine at a temperature of from about 0.degree. to about 100.degree. C. until an average of at least 4 chlorine atoms has been added per mole of cyclopentadiene to form a first-stage product;2. heating the resultant liquid reaction product of Step 1 in a second stage at a temperature of from about 140.degree. C. to below about 200.degree. C. with chlorine in the presence of from about 0.0001% to about 5.0% (by weight) of an aromatic compound until the reaction products of Step 1 contain an average of about 6 chlorine atoms per molecule, based on cyclopentadiene starting material; wherein said aromatic compound contains from 1 to 3 aromatic rings; at least one of the rings containing a nitrogen atom;3. vaporizing and heating the resulting reaction products of Step 2 in a third stage in the presence of chlorine to a temperature of above 450.degree. C.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: March 10, 1981
    Assignee: Velsicol Chemical Corporation
    Inventors: Kalidas Paul, Glendon D. Kyker
  • Patent number: 4246205
    Abstract: There is disclosed a process for the production of hexachlorocyclopentadiene comprising the steps of:1. Reacting liquid cyclopentadiene and chlorine at a temperature of from about 0.degree. to about 100.degree. C. until an average of at least 4 chlorine atoms has been added per mole of cyclopentadiene to form a first-stage product;2. heating the resultant liquid reaction product of Step 1 in a second stage at a temperature of from about 140.degree. C. to below about 200.degree. C. with chlorine in the presence of from about 0.0001% to about 5.0% (by weight) of an aromatic compound until the reaction products of Step 1 contain an average of about 6 chlorine atoms per molecule, based on cyclopentadiene starting material; wherein said aromatic compound contains from about 4 to about 30 carbon atoms and from 1 to about 4 aromatic rings; and3. vaporizing and heating the resulting reaction products of Step 2 in a third stage in the presence of chlorine to a temperature of above 450.degree. C.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: January 20, 1981
    Assignee: Velsicol Chemical Corporation
    Inventors: Kalidas Paul, Glendon D. Kyker
  • Patent number: 4233251
    Abstract: There is disclosed a process for the production of hexachlorocyclopentadiene comprising the steps of:(a) reacting liquid cyclopentadiene and chlorine at a temperature of from about 0 to about 100 degrees centigrade until a minimum of four chlorine atoms has been added per mole of cyclopentadiene to form a first-stage product;(b) heating the resultant liquid reaction product of step (a) in a second stage at a temperature of from about 140 degrees centigrade to below about 200 degrees centigrade with chlorine in the presence of from about 0.0001 percent to about 5.0 percent (by weight) of a phosphorus compound until the reaction products of step (a) contain an average of about six chlorine atoms per molecule, based on cyclopentadiene starting material, wherein said phosphorus compound is ##STR1## wherein a, b, c, d, e, f, and g are integers independently selected from the group consisting of 0 and 1, and R.sup.1, R.sup.2, and R.sup.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: November 11, 1980
    Assignee: Velsicol Chemical Corporation
    Inventors: Glendon D. Kyker, Kalidas Paul
  • Patent number: 4001179
    Abstract: This invention discloses chemical compounds of the formula ##STR1## wherein X is chlorine or bromine and each of Y.sup.1, Y.sup.2, Y.sup.3 and Y.sup.4 are hydrogen, chlorine or bromine. Further disclosed are combustible polymers which have incorporated therein a fire retardant amount of a compound of the foregoing description.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: January 4, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, Glendon D. Kyker
  • Patent number: 3966676
    Abstract: This invention discloses chemical compounds of the formula ##SPC1##Wherein X is chlorine or bromine, and n is an integer from 2 to 5; and fire retardant compositions prepared therefrom.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: June 29, 1976
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, Glendon D. Kyker
  • Patent number: 3959216
    Abstract: This invention discloses chemical compounds of the formula ##SPC1##Wherein X and Y are each chlorine or bromine and n is an integer from 2 to 5. Further disclosed are fire retardant compositions comprising a combustible polymer and a compound of the foregoing description.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: May 25, 1976
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, Glendon D. Kyker
  • Patent number: 3959217
    Abstract: This invention discloses chemical compounds of the formula ##SPC1##Wherein Y is chlorine or bromine and n is an integer from 2 to 5. Further disclosed are fire retardant compositions comprising a combustible polymer and a compound of the foregoing description.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: May 25, 1976
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, Glendon D. Kyker
  • Patent number: 3953397
    Abstract: This invention discloses chemical compounds of the formula ##SPC1##Wherein Y is chlorine or bromine and n is an integer from 2 to 5. Further disclosed are fire retardant compositions comprising a combustible polymer and a compound of the foregoing description.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: April 27, 1976
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, Glendon D. Kyker
  • Patent number: 3950307
    Abstract: This invention discloses fire retardant chemical compounds of the formula ##SPC1##Wherein X and Y are each chlorine or bromine and n is an integer from 2 to 5 which are useful in polymeric compositions.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: April 13, 1976
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, Glendon D. Kyker