Patents by Inventor Richard Newton Lewis

Richard Newton Lewis 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).

  • Silicone elastomers containing alkoxysiloxanols
    Patent number: 4113690
    Abstract: Alpha-alkoxy-omega-siloxanols, R'O(R.sub.2 SiO).sub.x H, are produced by contacting cyclic siloxanes with alcohols under mild conditions. For example, hexamethylcyclotrisiloxane heated at reflux in methanol for four hours gives 5-methyoxyhexamethyltrisiloxan-1-ol in high yield. The reaction proceeds more rapidly in the presence of weak acids or bases. The products are useful as coupling agents, as antistructure agents and filler-treating agents for silicone elastomers.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: September 12, 1978
    Assignee: SWS Silicones Corporation
    Inventor: Richard Newton Lewis
  • Alkoxysiloxanol modified surfaces
    Patent number: 3979546
    Abstract: Surfaces of inorganic materials are rendered hydrophobic by treating the inorganic materials with alpha-alkoxy-omega-siloxanols which are obtained from the reaction of cyclic siloxanes with alcohols under mild conditions.
    Type: Grant
    Filed: January 21, 1974
    Date of Patent: September 7, 1976
    Assignee: SWS Silicones Corporation
    Inventor: Richard Newton Lewis
  • Antistructure agent
    Patent number: 3956166
    Abstract: An antistructure agent consisting essentially of hexamethyltrisiloxanediol and methoxyhexamethyltrisiloxanol is prepared by reacting hexamethylcyclotrisiloxane with water, methanol and a short-chain fatty acid. It is very effective in preventing structure buildup in silicone elastomers.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: May 11, 1976
    Assignee: SWS Silicones Corporation
    Inventor: Richard Newton Lewis
  • Alkoxysiloxanols
    Patent number: RE29211
    Abstract: Alpha-alkoxy-omega-siloxanols, R'O(R.sub.2 SiO).sub.x H, are produced by contacting cyclic siloxanes with alcohols under mild conditions. For example, hexamethylcyclotrisiloxane heated at reflux in methanol for four hours gives 5-methoxyhexamethyltrisiloxan-1-ol in high yield. The reaction proceeds more rapidly in the presence of weak acids .[.or bases.].. The products are useful as antistructure agents, coupling agents, and filler-treating agents for silicone elastomers.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: May 10, 1977
    Assignee: SWS Silicones Corporation
    Inventor: Richard Newton Lewis