Ciba Specialty Chemicals Corporation

Advanced Polymerik Pty. Limited

Polymers Australia Pty Limited

Commonwealth Scientific and Industrial Research Organisation

Hendrik Wermter

Rudolf Pfaendner

Graeme Moad

Guoxin Li

Roshan Tyrrel Anton Mayadunne

George Philip Simon

Katherine Maree Dean

Dirk Simon

Ezio Rizzardo

Richard Alexander Evans

Armin Schneider

Jonathan Andrew Campbell

Jonathan Campbell

The present invention is directed to compositions comprising (a) a synthetic polymer, (b) a talc as a filler, wherein the talc particles have a mean particle size of from 0.4 to 25 &#x3bc;m, and are present in an amount of from 0.1 to 10% based on the weight of component (a) and (c) a dispersing agent which is based on a non-ionic surfactant or an amphiphilic statistical, block or comb copolymer, provided that when the synthetic polymer (a) is a polyamide, this is present in an amount of less than 55% based on the weight of (a), (b) and (c).

Dispersing agents in composites

The instant invention discloses a process for the preparation a polyolefin nanocomposite which comprises melt mixing a mixture of a polyolefin, a filler and a non-ionic surfactant.

Process for the preparation of polyolefin nanocamposites

The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler selected from a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) a dispersing agent prepared by controlled free radical polymerization (CFRP).

Dispersing agents in nanocomposites

The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) at least one hydroxylamine of high molecular weight, preferably a long chain alkyl substituted hydroxylamine. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of high molecular weight hydroxylamines for controlled polymerization.

Composition and process for the controlled synthesis of block copolymers

The instant invention discloses a nanocomposite material comprising (a) a synthetic polymer, (b) a natural or synthetic phyllosilicate or a mixture of such phyllosilicates in nanoparticles, (c) a phenolic antioxidant and/or a processing stabilizer, and (d) a mono or polyfunctional compound selected from the class consisting of the epoxides, oxazolines, oxazolones, oxazines, isocyanates and/or anhydrides.

Stabilization of thermoplastic nanocomposites

The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler such as for example a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) as dispersing agent a polymer based on a long chain alkyl meth(acryte).

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Bensheim, Germany

Hendrik Wermter