Article having self-cleaning coating

Details Article having self-cleaning coating Article having self-cleaning coating

1977-04-18

1979-04-03

Ives, P. C.

Stock material or miscellaneous articles

Composite

Of silicon containing

428469, 428477, 428538, 428539, 252454, 252455R, 252455Z, 106 48, 126 19R, 427193, 427279, 427332, B32B 904, B32B 906, B32B 1504, A21B 100

Patent

active

041478355

ABSTRACT:
A slip containing a frit and an oxidizing catalyst is sprayed over a substrate and fused at a temperature as low as 550.degree. C. The frit consists of 15-60% by weight of SiO.sub.2, 9-35% of B.sub.2 O.sub.3, 10-30% Na.sub.2 O, 1-25% of Al.sub.2 O.sub.3, 0-20% of Li.sub.2 O, 0-10% of K.sub.2 O and 0-10% of CaO but must have at least two of Li.sub.2 O, K.sub.2 O and CaO. The oxidizing catalyst is MnOx or CuCO.sub.3 Cu(OH).sub.2 or a mixture thereof, the content being preferably between 5 and 50% by weight. The self-cleaning is effected at a temperature as low as at 280.degree. C.

REFERENCES:
patent: 3266477 (1966-08-01), Stiles
patent: 3547098 (1970-12-01), Lee
patent: 3587556 (1971-06-01), Moreland
patent: 3759240 (1973-09-01), Borowski
patent: 3939295 (1976-02-01), Robertson et al.
patent: 3993597 (1976-11-01), Stiles

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