Rhone-Poulenc Chimie

Louis Carette

Francois Pouenat

Michel M Gay

Gerard Velleret

Mireille Arfiche

Pierre Pena Porta

Sylvie Lavault

Gilles Mur

Chlorine-containing polymers, e.g., PVC and poly(vinylidene chloride), are effectively heat-stabilized by formulating therewith at least one zinc stannate and/or at least one zinc hydroxystannate, characteristically in combination with at least one organozinc compound, at least one organocalcium, organobarium, organomagnesium or organolanthanide compound, and at least one beta-ketoaldehyde, beta-diketone, 1,4-dihydropyridine monomer or polymer, beta-ketoester, beta-aminocrotonic ester, mercaptocarboxylic ester or alpha-phenylindole.

Zinc stannate/zinc hydroxystannate heat-stabilized chloropolymers

The present invention relates to new stabilized compositions based on halogenated polymer and more specifically on chlorinated polymer. It relates more particularly to stabilized compositions based on chlorinated polymer, which are characterized in that they contain:

Stabilized halogenated polymer compositions containing a lead or

The present invention relates to new stabilized compositions based on halogenated polymers and more specifically on chlorinated polymer. It relates more particularly to stabilized compositions based on chlorinated polymers, which are characterized in that they contain:

Halogenated polymer compositions stabilized with the aid of an inorganic

Novel compositions for stabilizing chlorinated polymers, copolymers and homopolymers comprising dawsonite, an organotin .beta.-diketonate, an organic zinc compound, and an organic calcium, magnesium, barium or lanthanide compound are disclosed. The compositions of the present invention enable the content of epoxidized oils to be decreased in chlorinated polymers while preserving thermal stability.

Compositions for stabilizing chlorinated polymers

A novel composition for use in chlorinated polymers comprising:

Compositions for use with chlorinated polymers

Novel dihydropyridine compounds bearing substituted piperidyl substituents are effective heat/light stabilizers for a wide variety of polymer substrates, e.g., for halopolymers such as PVC, and are also effective anti-UV agents and antioxidants for such polymers as polyolefins, polystyrenes, polyalkadienes, polyurethanes, polyamides, polyesters, polycarbonates, polysulfones, polyethersulfones, polyetherketones, acrylic polymers, or copolymers or mixtures thereof.

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Issy Les Moulineaux, France

Louis Carette