Transferable maskants suitable for chemical processing
AssigneeQuaker Chemical Corporation
InventorsThomas P. Farrell, Bryan Vu, David Tomlinson, Peter Weissman
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Abstract
In one aspect, the present disclosure provides a polymer film with a low glass transition temperature. In one embodiment, when in contact with a metal substrate, the polymer film adheres to the metal substrate under heating and/or mechanical pressure. In one embodiment, the polymer film comprises a butadiene copolymer and a butylene polymer. In another aspect, the present disclosure further provides a method of masking a metal substrate using the polymer film. In yet another aspect, the present disclosure provides a method of chemically or electrochemically processing a metal substrate that is masked with the polymer film.
Claims19
A polymer film comprising a copolymer comprising a blend of styrene-ethylene-butylene-styrene (SEBS) and styrene-ethylene-propylene-styrene (SEPS) having a glass transition temperature of about −150° C. to about 150° C. and a butylene polymer having a glass transition temperature of about −90° C. to −40° C., wherein the copolymer and butylene polymer are oriented such that the polymer film has a first microstructure and, upon contacting the polymer film with a metal substrate under elevated temperature and/or mechanical pressure, the polymer film has a second microstructure with increased adhesion to the metal substrate, wherein the polymer film comprises about 75% to about 95% by weight of the copolymer and about 5.0% to about 25.0% by weight of the butylene polymer.
Dependencies are inferred from the claim text.