| 摘要 |
<p>Flame retarded organopolysiloxane gels useful as sealants for articles designed for protective, sealing or insulative applications include (i) an organopolysiloxane gel having repeat units of structure (I) where each R is independently phenyl or C1-C4 alkyl or fluoroalkyl, at least 40 % of the R groups being phenyl; and (ii) an additive package mixed with the organopolysiloxane, which is (a) zinc oxide; (b) antemony oxide; (c) a brominated compound having a molecular weight of at least 450 and a bromine content of at least 40 weight %; (d) a chlorinated compound having a molecular weight of at least 300 and a chlorine content of at least 40 weight %; or (e) combinations of the above. The additive package is used in an amount between about 10 and about 60 parts by weight per 100 parts by weight of organopolysiloxane. An exemplary article is shown in the figure which depicts an in-line crimpsplicer (10) which includes a connector (12), an insulating sleeve (14) and a flame retarded gel or encapsulant (16).</p> |
