Process of making multifilament glass strand

Details Process of making multifilament glass strand Process of making multifilament glass strand

1989-01-06

1991-03-26

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 12, 425 76, 425463, 428399, C03B 37022

Patent

active

050025988

ABSTRACT:
The application discloses an apparatus and a process for the manufacture of continuous fibers by mechanical attenuation. It is especially useful in obtaining a strand composed of a mixture of filaments of differing cross sections in constant and definite proportion. This is obtained by employment of a bushing having a lower surface comprising a multiplicity of fiberizing centers of varying configurations, each fiberizing center being formed by a zone perforated by a group of orifices from which at least one filament can be attenuated in a stable manner. The strands produced are particularly adapted for the reinforcement of plastic materials.

REFERENCES:
patent: 2825260 (1958-03-01), O'Brien
patent: 2965925 (1960-12-01), Dietzsch
patent: 3019078 (1962-01-01), Roberson
patent: 3425454 (1969-02-01), Eakins et al.
patent: 4348217 (1982-09-01), Williamson et al.
Undated publication entitled Forming Glass Filaments with Unusual Cross Sections, R. A. Humphry, DeBell & Richardson, Hazzardville, Or., pp. 77.2-77.8.

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