Apparatus for producing coated panels

Details Apparatus for producing coated panels Apparatus for producing coated panels

1985-12-03

1987-12-15

Thurlow, Jeffery

Static molds

Uniting preform with molding material

Including means other than mold surface to support preform

249 83, 264275, 264279, 26432812, 425117, 425127, 425129R, 425568, 425571, 425812, B29C 3310, B29C 3314, B29C 3910, B29C 4514

Patent

active

047127651

ABSTRACT:
Panels having an integral coat of a cross-linked polymer matrix are formed in the cavity of a closed mold consisting of a lid and a tray; the preformed core of the panel is supported but by the lid and an essentially continuous free space corresponding with the coat to be formed around the core is maintained between the latter and the mold cavity; an essentially prismatic space or chamber is provided at a rim juncture of tray and lid adjacent to, yet outside of, the mold cavity of the closed mold; an elongated slit-shaped opening extending over at least half the length of one side of the mold cavity is formed at an end of the prismatic space; the inlet opening ends in the prismatic space and an essentially laminar flow is achieved throughout the mold cavity when a liquid resin composition that has a viscosity of less than 10 Pascal.seconds and is capable of forming a cross-linked polymer matrix upon curing is fed through the inlet positioned near the lower end of the closed mold held in an inclined position for gradual filling with an ascending stream of the liquid resin composition; integrally and heavily coated panels free of surface defects in their visible portions can be obtained after setting and curing of the resin.

REFERENCES:
patent: 2994925 (1961-08-01), Gits

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