Patents Assigned to Deutsche Gold- und Silber-Scheldeanstalt Vormals Roessler
  • Water free light silica and silicate fillers for cross-linking elastomers
    Patent number: 4059558
    Abstract: Silica and silicates having a water content of less than 0.5% by weight and specific surface areas of 25 to 300 (.+-. 25) m.sup.2 /g. by the BET procedure are employed as light fillers for the vulcanization of natural rubber and synthetic elastomers with or without counter pressure.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: November 22, 1977
    Assignee: Deutsche Gold- und Silber-Scheldeanstalt Vormals Roessler
    Inventors: Paul Golombeck, Friedrich Hertl