Colored articles with interference layers made of a composite of

Details Colored articles with interference layers made of a composite of Colored articles with interference layers made of a composite of

1987-08-31

1989-12-19

Arnold, Bruce Y.

Stock material or miscellaneous articles

Composite

Of bituminous or tarry residue

428333, 428704, G02B 110, G02B 528, B32B 900

Patent

active

048878863

ABSTRACT:
A colored article comprises a workpiece having a surface producing a color by light interference. The surface is defined by forming a reflective surface and coating the reflective surface with a composite layer of SiC and SiO.sub.2 having an SiO.sub.2 ingredient ratio of 5 to 80% by weight and a thickness of 200 to 3000 .ANG. or with a composite layer of Si.sub.3 N.sub.4 and SiO.sub.2 having an SiO.sub.2 ingredient ratio of 5 to 80% by weight and a thickness of 400 to 4000 .ANG..

REFERENCES:
patent: 2394533 (1946-02-01), Colbert et al.
patent: 2758510 (1956-08-01), Auwarter
patent: 4187336 (1980-02-01), Gordon
patent: 4308316 (1981-12-01), Gordon
patent: 4609267 (1986-09-01), Deguchi et al.

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