Oil-bleed self-bonding liquid silicone rubber composition
AssigneeMomentive Performance Materials Inc.
InventorsHuiping Zhang, Clemens Trumm, Gunnar Hoffmueller, John Mitchell Huggins, Hubertus Eversheim, Srividhya Marimuthu, Enise Michalski
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Abstract
The present invention relates to an oil-bleed self-bonding liquid silicone rubber composition having both self-bonding and self-lubricating capabilities. The oil-bleed self-bonding liquid silicone rubber composition exhibits self-bonding capability in particular to substrates that contain residual hydroxyl groups or other residual hydrosilyl-reacting groups on their surface, including polycarbonate, polyester, polyamide, polysulfone, polyurethane, phenolic resin, epoxy resin, cellulose, glass and the mixture thereof.
Claims15
Addition-curable silicone rubber composition, comprising:
- (A) at least one polyorganosiloxane having at least two unsaturated hydrocarbyl residues,
- (B) at least one polyorganohydrogensiloxane,
- (C) at least one hydrosilylation catalyst, comprising a transition metal,
- (D) at least one organosilicon compound containing at least one polyvalent aromatic group, which is not directly attached to a silicon atom, and at least one Si—H group, different from compound B),
- (E) at least one aromatic compound with at least two unsaturated hydrocarbyl groups, which aromatic compound does not contain a siloxane group,
- (F) at least one silicone oil having at least one alkyl group having at least two carbon atoms and not having any aromatic groups,
- (G) optionally one or more reinforcing fillers, and
- (H) optionally one or more auxiliary additives.
Dependencies are inferred from the claim text.