Patents Assigned to Down Corning GmbH
  • Flame-resistant polyorganosiloxane compound containing hollow glass balls and intumescent compound
    Patent number: 5262454
    Abstract: A flame-resistant, hardenable polyorganosiloxane compound is described with a content of 2 to 40 weight % hollow glass balls with an outside diameter of up to 200 .mu.m and 3 to 50 weight % of an inorganic intumescent compound which expands at a temperature from 80.degree. to 250.degree. C. The preferred intumescent compound is expandable graphite. The compound can replace the previous compounds provided with polyhalogenated diphenyl compounds in fireproof windows.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: November 16, 1993
    Assignees: Down Corning GmbH, Schott Glaswerke
    Inventors: Roland Leroux, Jurgen Thurk, Reinhard Jonas