C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/00 (2006.01)
Patent
CA 2757522
The present invention relates to the field of overmolded polyamide composites structures and processes for their preparation. The disclosed overmolded composite structures comprise a first component having a surface, which surface has at least a portion made of a surface polyamide resin composition, and having a fibrous material impregnated with a matrix resin com-position, and comprise a second component comprising an overmolding resin composition. The second component is adhered to the first component over at least a portion of the surface of said first component. One of the overmolding resin composition and the surface polyamide resin composition is made of a polyamide composition comprising a blend of one or more semi-aromatic polyamides (A) and one or more fully aliphatic polyamides (B) and the other of the overmolding resin composition and the sur-face polyamide resin composition is made of one or more polyamides.
La présente invention porte sur des structures composites de polyamide surmoulées et sur leurs procédés de préparation. Les structures composites surmoulées décrites comprennent un premier composant ayant une surface, qui comporte au moins une partie en composition de résine polyamide de surface, et un matériau fibreux imprégné d'une composition de résine matrice, et ces structures comprennent un second composant qui renferme une composition de résine de surmoulage. Le second composant adhère au premier composant sur au moins une partie de la surface dudit premier composant. Dans la paire formée de la composition de résine de surmoulage et de la composition de résine polyamide de surface, l'une des deux est en composition de polyamide comprenant un mélange d'un ou plusieurs polyamides semi-aromatiques (A) et d'un ou plusieurs polyamides entièrement aliphatiques (B), et l'autre est faite d'un ou plusieurs polyamides.
Elia Andri E.
Kirchner Olaf Norbert
Wakeman Martyn Douglas
E. I. Du Pont de Nemours And Company
Torys Llp
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