Anti-fouling polyaddition silicone varnish, application of this varnish to a support and support thus treated
AssigneeBluestar Silicones France SAS
InventorsAlain Pouchelon, Maryline Quemin
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AssigneeBluestar Silicones France SAS
InventorsAlain Pouchelon, Maryline Quemin
Estimating the term…
The invention relates to silicone compositions particularly useful for the production of anti-fouling varnishes that can be applied to flexible or bulk supports. The aim is to provide an anti-fouling silicone varnish for textiles coated with silicone elastomers which is economical, adhesive, non-slip and glossy. This aim is achieved by means of a crosslinkable silicone composition comprising: A—100 parts by weight of dry POS resin (A), preferably of formula MMViQ, B—35 to 150 parts by weight of POS (B), preferably of formula (MH)(2w+2) Qw with w=1 to 6, C—0.0005 to 0.1 by weight of Pt as catalyst (C), D1—0 to 50 parts by weight of at least one particulate component (D1) chosen from the group of (co)polyamide powders, D2—0 to 50 parts by weight of at least one particulate component (D2) chosen from the group of silica powders, D3—0 to 50 parts by weight of at least one particulate component (D3) chosen from the group of reinforcing silica powders, D4—0 to 50 parts by weight of at least one particulate component (D4) chosen from the group of metal oxide powders, preferably titanium oxide, cerium oxide or aluminium oxide A12O3 (hydrated alumina) powders, or alternatively mica powders, E—0.01 to 1 part by weight of at least one crosslinking inhibitor (E) useful in particular as a regulator, F—0 to 800 parts by weight of at least one solvent (F), G—0 to 5 parts by weight of at least one adhesion promoter (G), H—0 to 5 of at least one functional additive (H) for imparting priorities 0 to 10. The invention also comprises a varnishing process, and a composite comprising the varnished support.
Cross-linkable silicone composition useful in particular as a varnish having in particular anti-fouling properties, this composition being cross-linkable by polyaddition and comprising:
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Dependencies are inferred from the claim text.