Silicone pressure sensitive adhesive composition containing a fluorosilicone additive and methods for the preparation and use thereof

A method for preparing protective film comprising:

• optionally 1) treating a surface of a substrate,
• 2) coating t on the surface of the substrate, a silicone pressure sensitive adhesive composition comprising:
• 10 weight % to 60 weight %, based on combined weights of starting materials (A) to (G), of (A) a polydialkylsiloxane terminated with an aliphatically unsaturated group;
• 0.1 weight % to 5 weight %, based on combined weights of starting materials (A) to (G), of (B) a polyalkylhydrogensiloxane;
• 0.01 weight % to 5 weight %, based on combined weights of starting materials (A) to (G), of (C) a hydrosilylation reaction catalyst;
• 5 weight % to 75 weight %, based on combined weights of starting materials (A) to (G), of (D) a siloxane selected from the group consisting of
• (D-1) a polyorganosilicate resin,
• (D-2) a branched polyorganosiloxane polymer, and
• (D-3) a combination of both (D-1) and (D-2);
• with the proviso that starting materials (A) and (D) are present in amounts sufficient to provide a (D)/(A) ratio of ≥2/1;
• ≥0.65 weight % to <3 weight %, based on combined weights of starting materials (A) to (G), of (E) a poly(dialkyl/alkyl,fluoroalkyl)siloxane;
• 0.1 weight % to 5 weight %, based on combined weights of starting materials (A) to (G), of (F) an anchorage additive;
• 0 weight % to 5 weight %, based on combined weights of starting materials (A) to (G), of (G) a hydrosilylation reaction inhibitor;
• and
• 0 weight % to 60 weight %, based on combined weights of all starting materials in the composition, of (H) a solvent;
• optionally 3) removing some or all of the solvent, when present, and
• 4) curing the pressure sensitive adhesive composition.