Vetrotex Saint-gobain

Robert Federowsky

Jacques Mahler

Barbara Soszka

Giordano Roncato

The invention relates to an apparatus and process for the direct production of a composite yarn or ribbon of continuous reinforcement fibers and a thermoplastic organic material. The process includes drawing reinforcement fibers from molten glass, driving or extruding a thermoplastic organic material, converging the paths followed by the reinforcement fibers and the organic material toward one another, and joining the organic material and fibers in at least one composite yarn or ribbon. An apparatus for conducting this process is also disclosed.

Process and device for producing a yarn or ribbon formed from

A process for producing coated, single twist glass yarns which comprises drawing a plurality of fibers formed from fibers of molten glass, applying to the fibers a sizing comprising a thermoplastic, thermosetting or photosetting composition, gathering the coated fibers into a yarn, imparting a continuous rotative twisting movement to the coated yarn and curing the coated yarn so as to polymerize and/or crosslink the sizing coating. An apparatus for performing this process comprises a spinneret having a plurality of nozzles or orifices from which fibers of molten glass are discharged; a device such as a rotating spindle for drawing a plurality of glass fibers from the spinneret; at least one coating applicator for applying the sizing coating to the glass fibers; a guide for gathering the coated fibers into a yarn; a device for imparting a single twist to the coated yarn, such as a strap spindle device and an irradiation apparatus for curing the sizing coating wherein the coating is crosslinked and/or polymerized.

Apparatus for producing coated single twist glass yarns

A process for producing coated, single twist glass yarns which comprises drawing a plurality of fibers formed from fibers of molten glass, applying to the fibers a sizing comprising a thermoplastic, thermosetting or photosetting composition, gathering the coated fibers into a yarn, imparting a continuous rotative twisting movement to the coated yarn and curing the coated yarn so as to polymerize and/or crosslink the sizing coating. An apparatus for performing this process comprises a spinneret having a plurality of nozzles or orifices from which fibers 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; means for imparting a single twist to the coated yarn, such as a strap spindle device and means for curing the sizing coating wherein the coating is crosslinked and/or polymerized.

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Aix-Les-Bains, France

Robert Federowsky