Patents Assigned to SWS Silicones Corporation
  • Method for preparing silicone rubber molds
    Patent number: 3989790
    Abstract: A silicone rubber mold is prepared by applying a room temperature curable, dough-like silicone composition to an area of a pattern which is vulnerable to high stress and thereafter the remainder of the pattern is coated with a flowable silicone composition which is curable at room temperature. The mold is cured and ultimately separated from the pattern being copied. The resulting silicone rubber molds may be used for high frequency flow molding.
    Type: Grant
    Filed: March 22, 1974
    Date of Patent: November 2, 1976
    Assignee: SWS Silicones Corporation
    Inventors: Leonard Bretz Bruner, Kenneth Elmon Koch, Jr.
  • 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
  • Detergent resistant polish compositions
    Patent number: 3960575
    Abstract: Improved detergent resistant polish compositions can be prepared by adding novel aminofunctional silicon fluids obtained from an equilibration process to conventional polish compositions. Polishes having improved rub-out and gloss may be obtained by adding the aminofunctional silicon fluid and hydroxyl-terminated organopolysiloxanes and/or silicone resins to the polish compositions.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: June 1, 1976
    Assignee: SWS Silicones Corporation
    Inventor: Eugene Ray Martin
  • 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