Dual durometer molding without joint line

Details Dual durometer molding without joint line Dual durometer molding without joint line

B - Operations, Transporting

60

R

296/83

B60R 13/02 (2006.01) B29C 47/04 (2006.01) B32B 25/08 (2006.01) B60R 13/04 (2006.01)

Patent

CA 1318933

ABSTRACT A trim molding for attachment to a vehicle includes a core member and an outer layer extruded about one side of the core member. The core member comprises a polymeric material which prevents a joint line and ridges from appearing in the outer layer due to vibration being transmitted to the outer layer extrusion to present a smooth continuous surface on the outer layer. In addition, a method of making the trim molding for attachment to a vehicle includes the steps of extruding a core member of a polymeric material and extruding an outer layer of and elastomeric material about one side of the core member. The steps include extruding the core member and outer layer simultaneously, whereby the core member prevents joint lines and ridges from appearing in the outer layer due to vibrations being transmitted by the core member at the extrusion die.

576923

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