Electrically conductive masking tape

A method of preparing an article comprising:

• providing a substrate with a surface to which plasma vapor deposition is to be carried out;
• providing an electrically conductive tape article, wherein the electrically conductive tape article consists essentially of:
• an electrically conductive backing with a first major surface and a second major surface;
• and
• an electrically conductive pressure sensitive adhesive layer with a first major surface and a second major surface, wherein the second major surface of the pressure sensitive adhesive layer is in contact with the first major surface of the electrically conductive backing, wherein the pressure sensitive adhesive consists essentially of:
• an acrylate-based copolymeric matrix, the matrix comprising the reaction product of a reaction mixture comprising:
• 85-95% by weight of at least one first (meth)acrylate monomer comprising an alkyl(meth)acrylate with a homopolymer Tg of less than −50° C.;
• and
• 5-15% by weight of at least one second (meth)acrylate monomer comprising a hydroxyl-functional alkyl(meth)acrylate with a homopolymer Tg of less than-10° C.;
• 0.04-0.90% by weight of a crosslinker;
• an electrically conductive filler comprising nickel powder, silver powder, or nickel-coated graphite particles;
• and
• at least one antioxidant;
• contacting the first major surface of electrically conductive tape article to a portion of the substrate surface to provide a masked surface;
• cleaning the masked surface with a basic solution comprising application of a basic cleaning solution with a pH of 13-14 at a temperature of 50-100° for 30-60 minutes;
• exposing the masked surface to plasma vapor deposition comprising exposure of the surface to a temperature of 100-200° C. for from 2-24 hours;
• and
• cleanly removing the electrically conductive tape article from the substrate surface.

A laminated article comprising:

• a three-dimensional substrate with at least a first major surface, a second major surface, and a third major surface that define a volume at least partially comprising substrate material;
• and
• an electrically conductive tape, the electrically conductive tape consists essentially of:
• an electrically conductive backing with a first major surface and a second major surface;
• and
• an electrically conductive pressure sensitive adhesive layer with a first major surface and a second major surface, wherein the second major surface of the pressure sensitive adhesive layer is in contact with the first major surface of the electrically conductive backing, wherein the pressure sensitive adhesive consists essentially of:
• an acrylate-based copolymeric matrix, the matrix comprising the reaction product of a reaction mixture comprising:
• 85-95% by weight of at least one first (meth)acrylate monomer comprising an alkyl(meth)acrylate with a homopolymer Tg of less than −50° C.;
• and
• 5-15% by weight of at least one second (meth)acrylate monomer comprising a hydroxyl-functional alkyl(meth)acrylate with a homopolymer Tg of less than −10° C.;
• 0.04-0.90% by weight of a crosslinker;
• an electrically conductive filler comprising nickel powder, silver powder, or nickel-coated graphite particles;
• and
• at least one antioxidant;
• wherein the first major surface of the pressure sensitive adhesive layer is in contact with at least a portion of the first major surface and optionally the second major surface of the substrate to envelope a portion of the volume of the substrate.