Process for using an extruder die assembly for the production of

Details Process for using an extruder die assembly for the production of Process for using an extruder die assembly for the production of

1991-06-05

1993-12-07

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156166, 156245, 156433, 118420, 425114, 264136, B32B 100, D04H 312

Patent

active

052680509

ABSTRACT:
The invention provides an extruder die assembly for use in the production of fiber reinforced thermoplastic product which overcomes the problem of poor wetting of the fiber filaments. The die assembly also facilitates the production of fiber-reinforced products having high fiber concentration in the end product. The die assembly includes a cone-shape passage defined by decreasing radius from the inlet to the outlet. A plurality of pins are disposed within the passage. A thermoplastic melt is fed through the die assembly in the opposite direction to that of the fiber feed. As the fiber feed travels through the passage the pins spread the fibers helping to ensure that the molten thermoplastic thoroughly wets the fiber filaments.

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patent: 3993726 (1976-11-01), Moyer
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patent: 5002712 (1991-03-01), Goldmann et al.
patent: 5026447 (1991-06-01), O'Connor
patent: 5084305 (1992-01-01), Marttila
patent: 5114516 (1992-05-01), Pilling et al.
patent: 5116450 (1992-05-01), Spoo et al.

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