Patents by Inventor Mark Paterna

Mark Paterna 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).

  • Non-yellowing ortho-dialkyl aryl substituted triazine ultraviolet light absorbers
    Patent number: 6867250
    Abstract: The invention relates generally to pyrimidines and triazines ultraviolet light absorbers containing a phenolic aromatic group(s) and a non-phenolic aromatic group(s) and the use thereof to protect against degradation by environmental forces, inclusive of ultraviolet light, actinic radiation, oxidation, moisture, atmospheric pollutants, and combinations thereof. The new class of pyrimidines and triazines includes two (one) non-phenolic aromatic groups with hydrocarbyl groups that are ortho to each other and one (two) resorcinol or substituted resorcinol group attached to a triazine or pyrimidine ring. The pyrimidines and triazines may be included in a polymeric structure. A method for stabilizing a material by incorporating the novel pyrimidines and triazines is also disclosed.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: March 15, 2005
    Assignee: Cytec Technology Corp.
    Inventors: Ram B. Gupta, Hargurpreet Singh, Russell C. Cappadona, Mark Paterna, Al Wagner