Method of forming a preform by precoating glass fibers prior to

Details Method of forming a preform by precoating glass fibers prior to Method of forming a preform by precoating glass fibers prior to

1992-04-08

1994-07-12

Jones, W. Gary

Glass manufacturing

Processes

With coating

65111, 65 41, 65 44, 264511, 264517, 264121, 264112, C03C 2502, C03B 2320

Patent

active

053284941

ABSTRACT:
A process for producing a preform (44) includes pretreating roving by submerging it in a tank (18) and cooling the binder (20) on the glass fibers before the glass fibers are chopped. The fibers and solidified binder are then chopped and deposited onto a preform screen (32). Heat is applied to soften the binder that is on the chopped glass fibers and cooled to set the binder and form the preform on the screen.

REFERENCES:
patent: 2719350 (1955-10-01), Slayter et al.
patent: 3021564 (1962-02-01), Morgan et al.
patent: 3170197 (1965-02-01), Brenner
patent: 4199388 (1980-04-01), Tracy et al.
patent: 4745028 (1988-05-01), Das et al.
patent: 4994303 (1991-02-01), Calkins
patent: 5009821 (1991-04-01), Weaver
patent: 5041260 (1991-08-01), Johnson et al.

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