Thermoplastic resin composition and process for preparing...

Details Thermoplastic resin composition and process for preparing... Thermoplastic resin composition and process for preparing...

C - Chemistry, Metallurgy

08

L

C08L 67/02 (2006.01) C08K 3/34 (2006.01) C08K 5/49 (2006.01) C08K 7/00 (2006.01) C08K 7/02 (2006.01) C08L 69/00 (2006.01)

Patent

CA 2364616

A polyester resin composition which is excellent in mechanical properties, deflection temperature under load, surface appearance, dimensional stability, and releasability. The composition comprises a thermoplastic polyester resin and a phyllosilicate, wherein the phyllosilicate contained in the resin composition satisfies at least one of the following requirements (a) to (c): (a) the proportion of phyllosilicate particles having an equi-areal circle diameter, [D], of 3,000 .ANG. or smaller is 20 % or higher, (b) the average of the equi-areal circle diameters [D] is 5,000 .ANG. or smaller, and (c) the number of phyllosilicate particles, [N], present per 100 µm2 of the resin composition is 30 or larger.

L'invention concerne une composition de résine polyester dotée de propriétés mécaniques efficaces et faisant preuve d'une température de déformation sous charge, d'un aspect de surface, d'une stabilité dimensionnelle et d'une capacité de détachement excellents. La composition renferme une résine polyester thermoplastique et un phyllosilicate remplissant au moins une des conditions requises suivantes: a) la proportion de particules de phyllosilicate ayant un diamètre de même aire (D) de 3000 .ANG. au plus est de 20 % au moins, b) la moyenne des diamètres de même aire (D) est de 5000 .ANG. au plus et c) le nombre de particules de phyllosilicate (N) par 100 µm?2¿ de composition de résine est de 30 au moins.

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