Université De Haute-Alsace

Elkem Silicones France Sas

Ocv Intellectual Capital, LLC

A Et a Mader

Centre National De La Recherche Scientifique

Lamberti Spa

Xavier Allonas

Giuseppe Li Bassi

Jean-Marc Frances

Gabriele Pietro Norcini

Christian Maliverney

Patrick Moireau

Jacques Lalevee

Marco Visconti

Perrine Theil

Guillaume Pibre

Celine Dietlin

Stefano Romagnano

Jean Pierre Fouassier

Ahmad Ibrahim

Céline Croutxé-Barghorn

Remi Pynaert

Matthieu Retailleau

David Marechal

Adrien Criqui

Maxime Lecompere

Hervé Farge

Jean Le Guern

The present invention concerns type II photoinitiators for the free-radical crosslinking of silicone compositions, in particular acrylic silicone compositions. The present invention concerns a silicone composition C1 that can be crosslinked by exposure to radiation with a wavelength of between 300 and 450 nm, comprising: &#x2014;at least one organopolysiloxane A comprising at least one methacrylate group bonded to a silicon atom, at least one organohydrogenopolysiloxane H comprising at least two, and preferably at least three hydrogen atoms each bonded to different silicon atoms, and&#x2014;at least one free-radical photoinitiator P. The present invention also concerns the provision of a silicone composition that can be polymerized or crosslinked by free-radical process comprising a type II photoinitiator system suitable for crosslinking silicone compositions, in particular by exposure to radiation, and absorbing light radiation with a wavelength greater than 300 nm.

Free-radical photoinitiators and uses of same in silicone compositions

A system and method for forming a silicone composition C that is crosslinkable by exposure to radiation with a wavelength between 200 nm and 450 nm, having:

Type II photoinitiator system and method for forming crosslinking silicone compositions

The present invention relates to a silicone composition C that is crosslinkable by exposure to radiation with a wavelength between 200 nm and 450 nm, comprising:

Type II photoinitiator system and method for crosslinking silicone compositions

Some embodiments relate to a dual cure polymerization system combining aza-Michael addition polymerization and photopolymerization. Some embodiments also relate to a dual cure polymerization system for preparing interpenetrating polymer networks. Some other embodiments relate to compositions and articles obtainable by a process of the invention and uses thereof.

Polymerization system using double click michael addition and photopolymerization

In a first aspect, the present invention concerns a kit for a polymerizable composition comprising a portion A constituted by a composition comprising at least one monomer (a1) that is reactive towards a cationic species (b) or a Lewis or Br&#xf6;nsted acid species, and at least one co-initiator, and a portion B comprising at least one cationic salt (e) selected from the salts with formula S1, S3, and S4 shown and defined in claim. In a second aspect, the present invention concerns a method of producing a coating or a composite material starting from polymerizable composition comprising at least one salt (e) selected from the salts with formula S1, S2, S3, and S4 shown and defined in claim, said composition being polymerized without adding external heat thereto.

Dual-cure cationically polymerisable composition and method for producing a coating or a composite material implementing said composition

UV-curable glass fiber sizing compositions, glass fibers sized with a UV-curable sizing composition, sizing methods, and composites comprising such UV-curable sized glass fibers are disclosed.

UV-curable glass fiber sizing compositions

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Mulhouse, France

Xavier Allonas