Multidensity liner/insulator

Details Multidensity liner/insulator Multidensity liner/insulator

B - Operations, Transporting

32

B

B32B 27/02 (2006.01) B29C 43/20 (2006.01) B32B 5/18 (2006.01) B32B 17/02 (2006.01) B32B 27/28 (2006.01) B32B 33/00 (2006.01) B60J 5/00 (2006.01) B60R 13/08 (2006.01) D04H 1/00 (2006.01) D04H 13/00 (2006.01) G10K 11/162 (2006.01)

Patent

CA 2444639

A liner/insulator includes a pad of fibrous material having a lofty, acoustically insulating portion and a relatively higher density skin along a first face thereof that may function as a water barrier. The acoustical liner is a non-laminate made from polyester, polyethylene, polypropylene, polyethylene terephthalate, glass fibers, natural fibers and any mixtures thereof. For certain applications the liner/insulator may incorporate a facing on one or even two opposing faces thereof. A method of insulating a door including an exterior body panel and an interior fascia panel as well as a door for a vehicle are also disclosed and claimed.

Cette invention concerne un ensemble garniture/isolant (10) comprenant un coussin de matière fibreuse (12) qui comprend une partie spongieuse, isolante au plan acoustique (14) dont une première face est recouverte une couche de densité relativement plus élevée (16) pouvant agir comme paroi étanche à l'eau. La garniture acoustique, non laminée, est faite de polyester, polyéthylène, polypropylène, polyéthylène téréphthalate, fibres de verre, fibres naturelles, seuls ou mélangés. Pour certaines applications, l'ensemble garniture/isolant peut comporter un parement sur une de ses faces, voire sur deux faces opposée. Est également décrite un procédé d'isolation de porte (38) comprenant un panneau de carrosserie extérieur (40) et un panneau intérieur de capitonnage (44). L'invention concerne également une portière de véhicule.

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