Compositions of polyesters and sepiolite-type clays

Details Compositions of polyesters and sepiolite-type clays Compositions of polyesters and sepiolite-type clays

C - Chemistry, Metallurgy

08

G

C08G 63/80 (2006.01) C08G 63/81 (2006.01) C08K 3/34 (2006.01)

Patent

CA 2591821

Compositions of thermoplastic polyesters and sepiolite-type clay in which the clay is dispersed in the polyester as often fibrous particles whose smallest dimension is less than 100 nm are made by polymerizing the polyester precursors in the presence of the clay. The compositions have good physical properties and can be melt molded into various articles. Many of these articles may be coated (painted) and are especially useful for appearance parts such as visible exterior automotive body parts.

Compositions de polyesters thermoplastiques et d'argile de type sépiolite dans lesquelles l'argile est dispersé dans le polyester, le plus souvent sous forme de particules fibreuses dont la dimension la plus faible est inférieure 100 nm, et qui sont obtenues par polymérisation de précurseurs de polyester en présence d'argile. Ces compositions possèdent de bonnes propriétés physiques et peuvent être fondues et moulées sous forme d'articles divers. Nombre de ces articles peuvent recevoir un revêtement (peinture) et conviennent particulièrement pour des pièces à caractère esthétique telles que des pièces extérieures visibles de carrosseries d'automobiles.

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