Method for pultruding fiber-reinforced thermoplastic stock

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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156166, 156242, 156245, 156324, 1565835, 1563082, 1563096, B32B 3126

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active

052640604

ABSTRACT:
A method for making a fiber-reinforced resin sheet includes providing an array of a plurality of resin film layers and fiber layers, passing the array through a die in order to consolidate the array. A pair of belts which are interposed respectively between the upper surface of the array and the die and the lower surface of the array and the die and move through the die, preferably without substantial relative movement between the array and the belts is provided in order to facilitate efficient manufacture while preserving desired end product surface characteristics. The process is preferably a pultrusion process with the belts moving under the influence of pulling force applied to the array. Pultrusion apparatus employing such belts in the manufacture of fiber-reinforced resin sheet is also disclosed.

REFERENCES:
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patent: 3847707 (1974-11-01), Meyer et al.
patent: 3873399 (1975-03-01), Goldsworthy et al.
patent: 4164439 (1979-08-01), Coonrod
patent: 4380523 (1983-04-01), Lind et al.
patent: 4440593 (1984-04-01), Goldsworthy
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patent: 4886701 (1989-12-01), Eknert
patent: 5057175 (1991-10-01), Ashton
patent: 5114516 (1992-05-01), Pilling et al.
Beck, David E. "New Processes and Prospects in Pultrusion," 38th Annual Conference, Reinforced Plastics/Composites Institute, The Society of the Plastics Industry, Feb. 7-11, 1983, pp. 1-2.

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