Improved bumper preform and method of forming same

Details Improved bumper preform and method of forming same Improved bumper preform and method of forming same

B - Operations, Transporting

29

B

B29B 11/14 (2006.01) B29B 11/16 (2006.01) B29C 37/02 (2006.01) B29C 70/08 (2006.01) B29C 70/54 (2006.01) B32B 5/02 (2006.01) B60R 19/03 (2006.01)

Patent

CA 2110984

2110984 9322122 PCTABS00027 A process for producing a reinforced plastic motor vehicle bumper includes the steps of placing a woven roving (17) on a center section of a preform screen (10) that is retained by a vacuum draw from a suction fan (16). Chopped glass fibers (20) and a curable binder are sprayed onto the preform screen and woven roving. A second layer (22) of woven roving is placed onto the center section of chopped glass and first layer (17) of woven roving. Either the excess trim (39) is trimmed by a cutting die (50) before the preform is cured or the die is first cured and then the excess trim is trimmed by a cutter using a plastic base (35) in the screen that circumscribes the contoured section of the preform screen.

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