Method for continuous molding of a rod-like product

Details Method for continuous molding of a rod-like product Method for continuous molding of a rod-like product

1986-10-15

1988-09-13

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

156180, 15624413, 15624427, 264130, 264135, 264136, 264137, 264174, 264236, 264347, B29C 3506

Patent

active

047708344

ABSTRACT:
A method of continuous molding a rod-like product includes forming an uncured rod-like molding by passing reinforcing fibers impregnated with uncured thermosetting resin through a squeezing die having a predetermined shape. Molten thermoplastic fluororesin is extruded in a ring shape to enclose the rod-like molding. A sheathing layer of the thermoplastic resin is formed by causing the thermoplastic resin to come into contact with the outer periphery of the uncured rod-like molding and by cooling and solidifying the thermoplastic resin. The uncured rod-like molding and the sheathing layer are introduced into a heated tank thereby hardening the thermosetting resin. The sheathing layer is stripped from the molding to form a rod-like product having a surface of fiber reinforced thermosetting resin.

REFERENCES:
patent: 3529050 (1970-09-01), Smith
patent: 3556888 (1971-01-01), Goldsworthy
patent: 3856446 (1974-12-01), Schultz
patent: 3993726 (1976-11-01), Moyer
patent: 4056596 (1977-11-01), Pahl
patent: 4515737 (1985-05-01), Karino et al.
patent: 4559095 (1985-12-01), Babbin

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