Rhodia Chimie

Bluestar Silicones France Sas

Fabio Zanandrea

Alain Pouchelon

Catherine George

Sébastien Sterin

Delphine Blanc-Magnard

Single-component silicone elastomer compositions (SEA) are crosslinkable by polyaddition into self-adhesive state, contain at least one polyorganosiloxane (POS) including sites of ethylenic and/or acetylenic unsaturation {POS containing units &#x2550;Si&#x2014; [unsaturation]}; at least one polyorganosiloxane (POS) containing units &#x2550;Si&#x2014;H; a catalytic system including at least one metal catalyst and at least one crosslinking inhibitor; a filler; at least one adhesion promoter; optionally, at least one POS resin; optionally, at least one thermal resistance agent; and, optionally, at least one other functional additive, and are useful for gluing, assembling, sealing, e.g., joints, coatings, electrical, electronic and automobile engineering parts.

Single-component silicone elastomer compositions crosslinkable into self-adhesive state

The invention relates to adhesive silicone elastomer compositions which can be crosslinked by polyaddition. The composition, crosslinkable by polyaddition (hydrosilylation), comprises: &#x3b1;/ at least one polyorganosiloxane (POS) bearing ethylenic and/or acetylenic unsaturations [POS with &#x2261;Si-(unsaturated) units]; &#x3b2;/ at least one polyorganosiloxane (POS) with &#x2261;Si&#x2014;H units; &#x3b3;/ a catalytic combination comprising &#x3b3;.1 at least one metallic catalyst (preferably platinum based), &#x3b3;.2 and at least one crosslinking inhibitor; &#x3b4;/ a filler; &#x3b5;/ at least one adhesion promoter; &#x3c1;/ at least one POS resin; &#x3bb;/ at least one thermal resistance agent; and &#x3c6;/ optionally at least one other functional additive. Methods of making and using the subject composition are also described.

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Lyons, France

Fabio Zanandrea