×

Novel Scavengers for one-component RTV compositions

  • US 4,839,453 A
  • Filed: 10/21/1987
  • Issued: 06/13/1989
  • Est. Priority Date: 09/29/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. A stable, one-package, substantially anhydrous and substantially acid-free, room temperature vulcanizable organopolysiloxane composition stable under ambient conditions in the substantial absence of moisture over an extended period of time and convertible to a tack-free elastomer, comprising:

  • (A) an organopolysiloxane wherein the silicon atom at each polymer chain end is terminated with at least two alkoxy radicals;

    (B) an effective amount of condensation catalyst; and

    (C) a stabilizing amount of scavenger for hydroxy functional groups selected from the group consisting of;

    ##STR20## divinyltetramethoxydisilazane, 1-Methyl-3-ethyl-1,1,3,3-tetramethoxydisilazane,1,3-Diethyl-1,1,3,3-tetramethoxydisilazane,1-Methyl-3-propyl-1,1,3,3-tetramethoxydisilazane,1-Ethyl-3-propyl-1,1,3,3-tetramethoxydisilazane,1,3-Dipropyl-1,1,3,3-tetramethoxydisilazane,1,1,3-Trimethyl-1,3,3-trimethoxydisilazane,1,1-Dimethyl-3-ethyl-1,3,3-trimethoxydisilazane,1,1-Dimethyl-3-propyl-1,3,3-trimethoxydisilazane,1,1-Dimethyl-3-butyl-1,3,3-trimethoxydisilazane,1,1-Diethyl-3-methyl-1,3,3-trimethoxydisilazane,1,1-Dipropyl-3-methyl-1,3,3-trimethoxydisilazane,1,1-Dibutyl-3-methyl-1,3,3-trimethoxydisilazane,1,1,3-Trimethyl-1,3,3-trimethoxydisilazane,1,1,3-Triethyl-1,3,3-trimethoxydisilazane,1,1,3-Tripropyl-1,3,3-Trimethoxydisilazane,1,1-Dimethyl-1,3,3,3-Tetramethoxydisilazane,1,1-Diethyl-1,3,3,3-Tetramethoxydisilazane,1,1-Dipropyl-1,3,3,3-Tetramethoxydisilazane,

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×