Compagnie Plastic Omnium

Olivier Torres

Denis Gille

Stéphane Guillier

Issam Khayat

Damien Boisson

Jérôme Brizin

François Virelizier

Marcel Boksebeld

Patrick Bosg

Emilien Hummer

Jean-Yves Sozet

Frederic Arnaud

Serge Monnin

Vivien Schott

Frédéric Arnaud

Motor-vehicle body part including a lenticular sheet made of transparent molded plastic material of a given refractive index (n) higher than 1 and a given thickness (e), includes an external face forming an array of substantially spherical microlenses of a given radius of curvature (R), said microlenses being arranged with a given pitch and, an internal face of the lenticular sheet, which bears an array of three-dimensional features that are arranged with the pitch of the array of microlenses. This array of features is formed from fractions of a whole three-dimensional feature of equal dimensions, two adjacent fractions of three-dimensional features being offset in the direction in question by a given phase shift, each of these fractions of three-dimensional features magnified by a given coefficient of magnification, are juxtaposed on the internal face of the lenticular sheet with a pitch corresponding to the pitch of the microlenses.

Body part comprising a lenticular wall to form a three-dimensional image

A shim for a compression mold for manufacturing a component from reinforced plastic, typically from SMC, comprising a fixed molding element, a mobile molding element, and a mobile shim that can be moved by an actuator. The mobile shim comprises a conventional part made of steel but also a part made of a high expansion material with a mean coefficient of expansion that is high enough that its own expansion at the molding temperature places the shim in compression against the molding element and seals against this element, thus eliminating flash on the molded part. This material is advantageously a polyetheretherketone, or PEEK. A mold comprising this shim and a compression molding method are also disclosed.

Shim for a compression mold with improved sealing

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Saint Genis Laval, France

Olivier Torres