Coating processes – Medical or dental purpose product; parts; subcombinations;... – Flexible web – sheet – film – or filament base
Patent
1997-06-09
1999-04-06
Lusignan, Michael
Coating processes
Medical or dental purpose product; parts; subcombinations;...
Flexible web, sheet, film, or filament base
12820612, 12820619, 427244, 4273855, B05D 302
Patent
active
058915087
ABSTRACT:
Masks are produced which disguise or counteract strong odors that would ordinarily make the environment unpleasant. Masks are treated with a fixate carrier and at least one odor-masking or counteracting agent in a volatile solvent. In a preferred embodiment, both the inner and outer mask surfaces are essentially a continuous, homogeneous layer.
REFERENCES:
patent: 3998988 (1976-12-01), Shimomai et al.
patent: 4517308 (1985-05-01), Ehlenz et al.
patent: 5636628 (1997-06-01), Barnum
Gates Stephen
Hendricks Glenna
Lusignan Michael
Portland State University
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