Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1993-06-22
1994-10-11
Bell, Janyce
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427337, 427377, 4271632, 4274301, 427384, B05D 506
Patent
active
053545745
ABSTRACT:
The present invention is directed to a method for producing an optical fiber having formyl groups on a core surface. In one embodiment, a plastic optical fiber having formyl groups on a core surface is obtained by immersing the core surface of the plastic optical fiber in a treating solution containing at least a 0.5 to 40 mM alkali metal hydroxide and a compound having formyl groups in water or lower alcohol solvent. In the other embodiment, a plastic optical fiber having formyl groups on a core surface is obtained by introducing a vic-diol group, a primary hydroxyl group or an alkenyl group on the core surface, and then oxidizing it. Turbidity on the core surface of the optical fiber thus obtained is minimized, thereby reducing the transmittance losses of light.
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Iijima Shinji
Kobayashi Takeshi
Ohe Kazue
Sakai Yasunori
Shimada Ken'ichi
Bell Janyce
Ibiden Co. Ltd.
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