Elf Atochem S.a.

Benoit Ernst

Richard Peres

Philippe Espiard

Alain Bouilloux

Henri Chanzy

Denis Melot

Jean-Yves Cavaille

Veronique Favier

The present invention relates to a latex containing two populations of particles of polymers based on vinyl chloride. Other subjects of the present invention are processes for producing this latex and its use in the manufacture of fluid plastisols which are stable on storage.

Bipopulated latex of polymers based on vinyl chloride, processes for the production thereof and application thereof in plastisols exhibiting improved rheology

The present invention relates to a latex containing two populations of particles of polymers based on vinyl chloride, respectively exhibiting mean diameters of between 0.9 and 1.3 &mgr;m and between 0.15 and 0.3 &mgr;m, in proportions such that the ratio by weight of the population with the lesser mean diameter to that with the greater mean diameter is between 0.4 and 0.7. Other subjects of the present invention are processes for the manufacture of the said latex and its application in fluid plastisols and foams of very good cellular quality.

Bipopulated latex based on vinyl chloride polymers having a high population level of fine particles, processes for the manufacture thereof and applications thereof

Cellulose microfibril-reinforced polymers and their applications

The present invention relates to a mixture of polymers (A) having polyamide blocks and copolymers (B) comprising vinylaromatic units and unsaturated carboxylic anhydride units, the quantity of (B) being sufficient for the melt index (or melt flow index, MFI) of the mixture of (A) and (B) to be less than the melt index of (A) alone. It also relates to masterbatches of (A) and (B).

Mixtures of polymer having polyamide blocks and copolymers having

The present invention relates to vinyl chloride copolymers, in the latex form, the particles of which are composed of a core, of an outer layer and optionally of an intermediate layer. It also relates to the process for the manufacture of this latex by seeded miscosuspension polymerization and to its applications in paints and plastisols.

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Beaumont-le-Rocher, France

Benoit Ernst