Method of producing glass fiber mat reinforced plastic panels wi

Details Method of producing glass fiber mat reinforced plastic panels wi Method of producing glass fiber mat reinforced plastic panels wi

1985-12-16

1987-05-12

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264275, 264279, 2643286, 26432812, 26432818, B29C 4514

Patent

active

046648623

ABSTRACT:
A method of making glass fiber mat reinforced RIM panels wherein glass fibers are kept away at a distance from the panel surface in a precisely controlled manner to avoid fiber readout defect. The method is carried out by molding glass fiber mats in a matched metal mold where at least one of the interior mold surface is etched with equally spaced, closely packed minute pockets or valleys of truncated pyramid shaped. Fiber glass mat reinforced panels thus produced have a textured panel surface with a multiplicity of minute truncated pyramid like protuberances. Glass fibers are excluded from such protuberances to produce a panel surface without the fiber readout defect.

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patent: 4564491 (1986-01-01), Koestecki

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