Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1991-06-05
1992-12-15
Cannon, James C.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
57249, 57258, 428378, 428392, 428442, D02G 318, D02G 336
Patent
active
051716348
ABSTRACT:
A process for producing coated glass yarns which comprises drawing a plurality of fibers formed from strands of molten glass, applying to the strands a sizing coating comprising at least a monounsaturated or polyunsaturated oligomer and a photostarter composition such as a photoinitiator compound, a photosensitizer compound or a mixture thereof and optionally an organic solvent and an additive composition comprising at least one of a wetting agent, an adhesion promoting agent, an antishrinking agent and a coupling agent, gathering the coated strands into a yarn and irradiating the coated yarn with a source of actinic radiation. An apparatus for performing this process comprises a spinneret having a plurality of nozzles or orifices, from which strands of molten glass are discharged, means for drawing a plurality of glass fibers from the spinneret, at least one coating applicator for applying the sizing coating to the glass fibers, guide means for gathering the coated fibers into a yarn and an irradiation enclosure wherein the coating is crosslinked and/or polymerized by the effect of at least two sources of actinic, preferably ultraviolet, radiation.
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Augier Eric
Mahler Jacques
Soszka Barbara
Cannon James C.
Vetrotex Saint-Gobain
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