Rhodia Chimie

Bluestar Silicones France Sas

Marilyne Quemin

Laurent Dumont

Alain Pouchelon

Francis Lafaysse

Silicone compositions, particularly for the production of anti-fouling varnishes which may be applied to flexible or bulk supports to provide an anti-fouling silicone varnish for textiles coated with elastomeric silicones which is economical, adhesive, low-slip and glossy; these are crosslinked silicone compositions comprising: A. at least one alkenylsilane, B. at least one catalytic system which comprises: B/1 at least one organometallic condensation catalyst, B/2 at least one metal M chelate and/or one metal alkoxide of general formula M(OJ), wherein n=valence of M and J=linear or branched C-Calkyl radical, M being selected from among: Ti, Zr, Ge and Al, C. at least one ultrafine filler, D. optionally, at least one arylsilane other than A. E. optionally, at least one other silane other than A. and other than D., F. optionally, at least one thickening agent and G. optionally, at least one functional additive.

Anti-soil silicone varnish compositions and support substrates treated therewith

A silicone composition useful especially for the production of varnishes applicable to substrates whose coefficient of friction it is sought to reduce. The object is to provide an anti-friction silicone varnish for textiles coated with silicone elastomers which is economic and adhesive, provides the desired slip, resists soiling and is shiny. This object is achieved by a crosslinkable silicone composition containing two silicones A and B which react with one another in the presence of a catalyst C to allow crosslinking, and a particulate component D selected from the group comprising powdered (co)polyamides&#x2014;preferably (co)polyamides 6, 12 and 6/12. The (co)polyamide particles are of substantially rounded shape and the mean particle diameter &#x3a6;is between 0.1 and 200 &#x3bc;m, preferably between 5 and 100 &#x3bc;m and particularly preferably between 10 and 50 &#x3bc;m. Also disclosed is a varnishing process and a composite containing the varnished substrate.

Silicone composition useful especially for the production of anti-friction varnish, process for the application of said varnish to a substrate, and treated substrate

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Lyons, France

Marilyne Quemin