Gloss-adjusting mask layer with particulate filler

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 37/00 (2006.01) B29C 41/32 (2006.01) B29C 45/14 (2006.01) B32B 27/08 (2006.01) B32B 27/40 (2006.01) B44C 1/17 (2006.01)

Patent

CA 2385598

The flexible, weatherable decorative sheet material provided by the present invention comprises a thermoformable decorative paint film having an inner surface and a weatherable, low gloss outer surface suitable for forming an exterior finish for a part, such as an automobile body part. The sheet material further includes an extensible mask layer releasably adhered to the outer surface of the paint film to form a protective film overlying the paint film. The mask layer comprises a film-forming polymer component and a particulate filler, such as silica, dispersed in the polymer component. A method of constructing the decorative sheet material, a method of controlling the gloss appearance of a paint film, and a composite shaped part including the decorative sheet material are also provided.

Cette invention se rapporte à un matériau en couche décoratif souple, résistant aux intempéries, qui comprend un film de peinture décoratif thermoformable comportant une surface interne et une surface externe peu brillante, résistant aux intempéries, aptes à former la couche de finition extérieure sur une pièce, par exemple une pièce de carrosserie d'automobile. Ce matériau en feuille comprend en outre une couche masque extensible collée détachable sur la surface externe du film de peinture, afin de former un film protecteur recouvrant le film de peinture. La couche masque contient un composant polymère filmogène et une charge particulaire, telle que de la silice, dispersée dans le composant polymère. Cette invention concerne également un procédé de fabrication de ce matériau en feuille décoratif, un procédé de modulation de l'aspect brillant du film de peinture, et une pièce façonnée composite comportant ce matériau en feuille décoratif.

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