Patents by Inventor Charles B. Abma

Charles B. Abma 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).

  • Cyclic perketals and their use for cross-linking high density polyethylene
    Patent number: 4271279
    Abstract: High density polyethylene is cross-linked with certain cyclic perketals including a group of novel cyclic perketals. Typical of the novel molecules is 3,6,6,9,9-pentamethyl-3-ethylacetate-1,2,4,5-tetraoxy cyclononane.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: June 2, 1981
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Pastorino, Roger N. Lewis, Charles B. Abma
  • Cyclic perketals and their use for cross-linking high density polyethylene
    Patent number: 4197244
    Abstract: High density polyethylene is cross-linked with certain cyclic perketals including a group of novel cyclic perketals. Typical of the novel molecules is 3,6,6,9,9-pentamethyl-3-ethylacetate-1,2,4,5-tetraoxy cyclononane.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: April 8, 1980
    Assignee: Argus Chemical Corporation
    Inventors: Ronald L. Pastorino, Roger N. Lewis, Charles B. Abma
  • Epoxidized dialkyl peroxides
    Patent number: 3991085
    Abstract: Dialkyl peroxides containing at least one epoxy grouping alpha to the peroxide linkage. Such peroxides have been found to be useful as catalysts in the preparation of heat cured polymer systems such as unsaturated polyester resins.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: November 9, 1976
    Assignee: Argus Chemical Corporation
    Inventors: Charles B. Abma, Ronald L. Friedman