Patents by Inventor Jay Bernard Class

Jay Bernard Class 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).

  • Use of peroxides to crosslink rubber compositions containing high vinyl styrene-butadiene rubber
    Patent number: 6245861
    Abstract: High vinyl styrene-butadiene rubber is cured through the use of organic peroxides. The organic peroxide may be used singly or in combination with sulfur curing ingredients to cure the high vinyl styrene-butadiene rubber wherein the organic peroxide to sulfur curing ingredient is at a molar ratio of from about 3:1 to about 1:3.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: June 12, 2001
    Assignee: Hercules Incorporated
    Inventor: Jay Bernard Class
  • Controlling premature curing of vulcanizable halogen-containing polymers
    Patent number: 5686537
    Abstract: Controlling premature curing of vulcanizable halogen-containing polymer compounds.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: November 11, 1997
    Assignee: Hercules Incorporated
    Inventor: Jay Bernard Class
  • Controlling premature curing of vulcanizable halogen-containing polymers
    Patent number: 5665830
    Abstract: A process of reducing the effects of moisture during storage prior to vulcanization of a vulcanizable halogen-containing polymer composition containing water, comprising blending before storage, into said vulcanizable composition, a thioester derivative of 2,5-dimercapto-1,3,4-thiadiazole crosslinking agent and polyethylene glycol, whereby the scorch time of the vulcanizable compound is not significantly affected by the water content of said composition. The invention is also directed to a vulcanizable halogen containing material and a dry pourable composition, both comprising the crosslinking agent and polyethylene glycol, as well as a process of reworking such a halogen-containing vulcanizable composition.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: September 9, 1997
    Assignee: Hercules Incorporated
    Inventor: Jay Bernard Class
  • Dry pourable powder premix composition for inclusion in a halogen-containing vulcanizable polymer composition comprising thioester derivative of 2,5-dimercapto-1,2,4-thiadiazole crosslinking agent, glycerin and finely divided material
    Patent number: 5645757
    Abstract: A composition in the form of a dry pourable powder cure premix composition for inclusion in a halogen-containing vulcanizable polymer composition, comprising a thioester derivative of 2,5-dimercapto-1,3,4-thiadiazole crosslinking agent, glycerin and a pourable siliceous finely divided filler. The composition is useful for controlling premature curing of vulcanizable halogen-containing polymer compounds.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: July 8, 1997
    Assignee: Hercules Incorporated
    Inventor: Jay Bernard Class