Patents by Inventor Allan S. Hay

Allan S. Hay 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).

  • Process for the preparation of a thiobis-2,6-disubstituted phenol from sulfur and a phenol
    Patent number: 3953519
    Abstract: A process for the preparation of a thiobis-2,6-disubstituted phenol is described which comprises the reaction of sulfur with a 2,6-disubstituted phenol carried out in the presence of (1) a base, (2) and an activated olefin or an epoxy compound. Thiobisphenols produced by this process are useful as monomers in the synthesis of polyesters, polycarbonates, polyethers, epoxy resins, among many other chemicals synthesized from polyhydric phenols. In addition, the thiobisphenols are also useful as antioxidants.
    Type: Grant
    Filed: July 1, 1974
    Date of Patent: April 27, 1976
    Assignee: General Electric Company
    Inventor: Allan S. Hay
  • Process for the preparation of an organomercaptophenol from sulfur, a phenol, and an activated olefin or an epoxy compound
    Patent number: 3952063
    Abstract: A process for the preparation of an organomercaptophenol is described which comprises the reaction of sulfur with a phenol carried out in the presence of (1) a base, and (2) an activated olefin or an epoxy compound. The organomercaptophenols produced by this process are useful as monomers in the synthesis of esters, carbonates, ethers, epoxy compounds, among many other chemicals synthesized from monohydric phenols. In addition, the organomercaptophenols are also useful as antioxidants.
    Type: Grant
    Filed: July 1, 1974
    Date of Patent: April 20, 1976
    Assignee: General Electric Company
    Inventor: Allan S. Hay