High temperature resistance mask

Details High temperature resistance mask High temperature resistance mask

1990-10-30

1992-05-12

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428937, 427423, B05D 108, B32B 712

Patent

active

051126834

ABSTRACT:
A mask, preferably for high temperature applications, such as flame spray processes, welding or soldering. The mask consists of an uppermost sacrificial layer formed of a high temperature resistant polymer, a perforated metal layer, preferably a metal screen bonded to the lower surface of the sacrificial layer, a barrier layer formed of a high temperature resistant polymer and bonded to the lower surface of the perforated metal layer, an adhesive layer applied to the lower surface of the barrier layer and a release layer covering the adhesive until used. Additional layers and additives such as flame retardants may be used. A preferred additional layer is comprised of a vermiculite dispersion which is coated onto the top of the sacrificial layer.

REFERENCES:
patent: 3932143 (1976-01-01), Marshall et al.
patent: 4190044 (1980-02-01), Patel
patent: 4405284 (1983-09-01), Albrecht et al.
patent: 4960643 (1990-10-01), Lemelson
patent: 4961973 (1990-10-01), Molnar

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