Plasma spray masking tape
AssigneeAlliedSignal Inc.
InventorsRichard A. Hauser, Robert F. Hamilton
Life of this patent
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Abstract
A masking tape for use in masking a part in a high velocity oxy-fuel (HVOF) plasma spray process. The tape is formed from a fabric which is tightly woven from yarns of aramid fibers. A silicone rubber impregnates the inner fabric layer. First and second silicone rubber layers are coated onto opposite sides of the impregnated fabric. A first silicone pressure-sensitive adhesive, which is a rare metal cured adhesive, is coated onto the second silicone rubber layer. A second silicone pressure-sensitive adhesive is coated onto the first silicone pressure-sensitive adhesive. A release liner is preferably laminated to the second pressure-sensitive adhesive.
Claims19
A masking tape for use in masking against a high velocity oxy-fuel plasma spray process, said masking tape comprising:
- (a) an inner fabric layer formed of tightly woven yarns of aramid fibers;
- (b) a silicone rubber impregnating said inner fabric layer, the resultant impregnated layer having a first face and a second face;
- (c) a first silicone rubber layer coated on the first face of said impregnated inner fabric layer;
- (d) a second silicone rubber layer coated on the second face of said impregnated inner fabric layer;
- (e) a first silicone pressure-sensitive adhesive coated onto said second silicone rubber layer;
- said first silicone pressure-sensitive adhesive being a rare metal cured silicone adhesive;
- and
- (f) a second silicone pressure-sensitive adhesive coated onto said first silicone pressure-sensitive adhesive.
Dependencies are inferred from the claim text.