Bluestar Silicones France Sas

Centre National De La Recherche Scientifique

University Claude Bernard - Lyon 1

Elkem Silicones France Sas

Elken Silicones France Sas

Bluestar Silicones France

Sébastien Marrot

Antoine Baceiredo

Tsuyoshi Kato

Laurent Saint-Jalmes

Michel Feder

Vincent Monteil

Delphine Crozet

Jean Raynaud

John White

Magali Bousquié

Ricardo Rodriguez

Etienne Fleury

Guillaume Pibre

Emmanuel Pouget

Yassine Maadadi

Caroline Moine

Chloe Thieuleux

Gaelle Cros

Chloé Thieuleux

Valerie Meille

Amparo Prades

Larent Saint-Jalmes

Fédéric Magd

Richard Vivier

Marie-Line Zanota

Reine Sayah El Rayes

Norio Nakata

Frédéric Magd

Magali BousquiÉ

Crosslinkable or crosslinked silicone compositions that can be used, in particular, to form a non-stick and water-repellent coating or film for flexible substrates and in the form of natural or synthetic polymer films are provided. These compositions comprise crosslinking organopolysiloxanes bearing SiH units and unsaturated organopolysiloxanes, preferably vinyl organopolysiloxanes, capable of reacting with the crosslinker by addition reaction, in the presence of platinum in order to form the non-stick crosslinked coating on the flexible substrate, and at least one crosslinking and attachment-promoting additive X. These compositions are advantageously free of solvent and can be crosslinked instantaneously into a non-stick and/or water-repellent coating for a flexible substrate.

Crosslinkable silicone composition for the production of non-stick coatings for flexible substrates and an attachment-promoting additive contained in this composition

Items that adhere to the skin for medical or paramedical use and methods of making and using the same are described.

Item that adheres to the skin

The invention relates to a crosslinkable composition X, comprising: at least one organopolysiloxane compound A comprising, per molecule, at least two C2-C6 alkenyl radicals bonded to silicon atoms; at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom; at least one catalyst C which is a complex corresponding to the following formula: [Fe(L1)2] in which: the symbol Fe represents iron at degree of oxidation II; the symbols L1, which may be identical or different, represent a ligand which is a &#x3b2;-dicarbonylato anion or the enolate anion of a &#x3b2;-dicarbonylated compound; optionally at least one adhesion promoter D; and optionally at least one charge E. The invention also relates to the use of the previously described catalyst C as silicone composition crosslinking catalyst, to a silicone composition crosslinking method, wherein it comprises heating the composition X to a temperature of between 70 and 200&#xb0; C., and to the resulting crosslinked silicone material Y.

Silicone composition crosslinking catalysts

The invention relates to a crosslinkable composition X, comprising: at least one organopolysiloxane compound A comprising, per molecule, at least two C2-C6 alkenyl radicals bonded to silicon atoms; at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom; at least one catalyst C which is a complex corresponding to the following formula: [Co (L1)2] in which: the symbol Co represents cobalt at degree of oxidation II; the symbols L1, which may be identical or different, represent a ligand which is a &#x3b2;-dicarbonylato anion or the enolate anion of a &#x3b2;-dicarbonylated compound; optionally at least one adhesion promoter D; and optionally at least one filler E. The invention also relates to the use of the previously described catalyst C as silicone composition crosslinking catalyst, to a silicone composition crosslinking method, characterized in that it consists in heating the composition X to a temperature of between 70 and 200&#xb0; C., and to the resulting crosslinked silicone material Y.

A metal complex including at least one metal atom chosen from the metals of Groups 8, 9 and 10 of the Periodic Table of the Elements and one or more ligands, wherein at least one ligand includes a cyclic silylene structure and a Lewis base which donates an electron pair to the silicon atom of the cyclic silylene structure.

Catalysts with a silylene ligand

The present invention relates to a hardenable silicone composition including an irradiation-activated system for temporarily inhibiting the hydrosilylation reaction. Said system includes at least one inhibitor selected from among &#x3b1;-acetylenic alcohols, &#x3b1;-&#x3b1;'-acetylenic diesters, conjugated ene-yne compounds, &#x3b1;-acetylenic ketones, acrylonitriles, maleates, fumarates, the mixture thereof, at least one photoinitiator, and tris(trimethylsilyl)silane (TTMSS). The invention also relates to a method for preparing a silicone coating and hard elastomer materials provided comprising said silicone composition.

Photoactivatable system for inhibiting hydrosilylation

A subject matter of the present invention is the use as catalyst, in particular in hydrosilylation, of a metal complex including at least one metal atom chosen from the metals of Groups 8, 9 and 10 of the Periodic Table of the Elements and one or more ligands, characterized in that at least one ligand includes a silene structure.

Catalysts having a silene ligand

A method (P) for hydrosilylating at least one compound (C), including at least one unsaturation in the presence of an organosilicon compound (O) including at least one hydrogen atom per molecule bonded directly to a silicon atom, and of a catalytic hydrosilylation system including a structured porous material (A) including pores and an inorganic structure consisting of silicon oxide walls, in which metal nanoparticles are contained.

Hydrosilylation method

Methods of using inhibitor compounds are described. In particular, methods of using inhibitor compounds to inhibit the curing of a silicone composition that is a precursor of a silicone elastomer produced by a hydrosilylation reaction are described.

Hydrosilylation reaction inhibitors, and use thereof for preparing stable curable silicone compositions

The invention relates to cross-linkable or cross-linked silicone compositions that can be used, in particular, to form a non-stick water-repellent coating for flexible substrates, for example paper or similar, in the form of natural or synthetic polymer films.

Cross-linkable silicone composition for the production of non-stick coatings for flexible substrates and an attachment-promoting additive contained in said composition

A process for condensation between at least one &#x2261;SiOH unit and at least one &#x2261;SiOR unit is provided. In accordance with the present invention, R=a hydrogen or a C-Chydrocarbon group optionally comprising one or more heteroatoms, and the &#x2261;SiOH and &#x2261;SiOR units belong to at least one identical or different (organo)silicon compound P. The process is conducted in the presence of an effective amount of at least one catalyst C, comprising a carbene. Compositions are also provided.

Method for condensing silyl units using a carbene catalyst

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Lyons, France

Sébastien Marrot