Coating processes – Electrical product produced – Welding electrode
Patent
1988-04-21
1989-08-29
Bell, Janyce
Coating processes
Electrical product produced
Welding electrode
118125, 118620, 264 14, 264 22, 427358, B05D 306, B05C 1102
Patent
active
048616214
ABSTRACT:
Pultrusion with cure by ultraviolet (UV) radiation, for manufacturing FRP wherein a continuous reinforcing material, most commonly, glass roving is first impregnated with a curable liquid resin and pulled through a UV transmittent die having a desired cross section and a sufficient length to effect the cure and, during passage through such a die, the continuous resinous material or FRP material is subjected to exposure to UV radiation to complete the pultrusion. The invention lies in prevention of sticking trend of the uncured resinous material onto the internal wall of the die. The present invention eliminates the sticking trend by a coating on the internal wall of the glass die. Another embodiment of the pultrusion uses a pipe die having a short length which is insufficient to allow completion of the cure reactions, and then, after passing through such a die, the FRP material to be cured is introduced into a medium liquid of UV transmittent type pressure and therein the material is exposed to UV radiation.
REFERENCES:
patent: 4264661 (1981-04-01), Brandolf
patent: 4364879 (1982-12-01), Gut et al.
patent: 4474830 (1984-10-01), Taylor
patent: 4636405 (1987-01-01), Mensan
patent: 4656049 (1987-04-01), Noto
patent: 4662307 (1987-05-01), Amos
patent: 4738868 (1988-04-01), Fischer et al.
patent: 4770898 (1988-09-01), Sugai et al.
Bell Janyce
Toyo Boseki Kabushiki Kaisha
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