Polymer mixture and its use for injection-moulded parts

Details Polymer mixture and its use for injection-moulded parts Polymer mixture and its use for injection-moulded parts

C - Chemistry, Metallurgy

08

L

C08L 33/12 (2006.01) B29C 45/00 (2006.01)

Patent

CA 2542459

The invention relates to a polymer mixture, which is based on (Meth)acrylate (co)polymer components a), b), c, and/or d) in accordance with Claim 1, wherein a test body produced from said polymer mixture also has the following properties: I. A tensile module (ISO 527) of at least 2600 Mpa; II. a vicat softening temperature VST (ISO 306-B50) of at least 109 ~C; III an impact strength (ISO 179-2D, flatwise) of at least 17 Kj/m2 and IV. A melting index MVR (ISO 1133, 230 ~C / 3.8 kg) of at least 1.5 cm3/10. The invention also relates to injection molded bodies and to the utilization of said polymer mixture for the production of injection molded parts.

L'invention concerne un mélange polymère à base de (co)polymères de (méth)acrylate a), b), c, et/ou d) selon la revendication 1. Une éprouvette produite à partir de ce mélange polymère présente les propriétés suivantes: I. un <u> module d'élasticité en traction </u> (ISO 527) d'au moins 2600 MPa; II. une <u> température de ramollissement Vicat </u> VET (ISO 306-B50) d'au moins 109 ·C; III une <u> résistance au choc </u> (ISO 179-2D, à plat) d'au moins 17 KJ/m?2¿; et IV. un <u> indice de fusion </u> MVR (ISO 1133, 230 ·C / 3,8 kg) d'au moins 1,5 cm?3¿/10 min. L'invention concerne en outre des corps moulés par injection et l'utilisation de ce mélange polymère pour la production de pièces moulées par injection.

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