Rhodia Chimie

Bluestar Silicones France Sas

Rhone-poulenc Chimie

Bluestar Silicones France

Georges Barrandon

Christian Maliverney

Delphine Blanc

Alain Pouchelon

Michel Letoffe

Yves Giraud

Catherine George

Fabienne Howe

Olivier Loubet

Carroll Vergelati

Bernard Moulin

Hervé Parisot

The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts which exhibit toxicity problems. The invention also relates to novel polycondensation catalysts having a guanidine structure, in silicone chemistry, and to the uses thereof as catalysts for the organopolysiloxane polycondensation reaction.

Compounds having a guanidine structure and use of same as organopolysiloxane polycondensation catalysts

The present invention relates to an article having antisoiling properties and intended to be employed in aquatic uses, in particular marine uses, and also to a method for delaying the growth of aquatic organisms on submersible or semi-submersible structures.

Article having antisoiling properties and intended to be employed in aquatic uses, in particular marine uses

The field of the present invention relates to the field of batteries and of polymer electrolytes for batteries and more particularly to the field of lithium batteries. The invention relates to a composition which can be polymerized and/or crosslinked by dehydrocondensation for a battery electrolyte comprising:

Crosslinkable composition for a battery electrolyte

A non-drip, preferably self-adhesive, silicone elastomer composition crosslinkable by polyaddition, such as those polyorganosilanes (POS) bearing C&#x2550;C&#x2261;Si-alkenyl units and &#x2261;Si&#x2014;H units but excluding fluorinated POS. The composition includes at least a thixotropic additive containing at least a fluorinated resin, preferably based on polyfluoroethylene (PTFE). The composition may be prepared from a Si&#x2014;Vi polydimethylsiloxane (PDMS) and a Si&#x2014;H PDMS crosslinked by platinum catalysis. Polytetrafluorethylene, a filler, particularly one containing silicone, optionally a ternary adherence promoter such as vinyltrimethosilane/glycidoxypropyltrimethoxysilane/butyl orthotitanate, and other typical additives may be added to the composition. The composition (not excluding the fluorinated POS as a possible constituent in the composition) may be used to produce joints in situ and/or as an adhesive, particularly in upholstery.

Non-drip silicone elastomer composition, crosslinkable by polyaddition, and its uses for making joints in situ as adhesive in particular in saddlery

Organopolysiloxanes curable into elastomeric state, well adapted as sealing materials for a variety of substrates and useful, e.g., in the automotive industry, are comprised of a polyhydroxylated polysiloxane, a polyacyloxysilane crosslinking agent, and an effective amount of at least one calcium oxide, strontium oxide and/or barium oxide cure accelerator therefor. The subject compositions are stable for at least 10 minutes at ambient temperature and crosslink on heating and/or addition of an aqueous or liquid carboxylic acid promoter thereto.

Organopolysiloxanes containing cure accelerators

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Mornant, France

Georges Barrandon