Processes to produce water-dispersible polyester stabilized, acid-treated, fluoroalkyl compositions

A process to produce an acid-treated aqueous dispersion, said process comprising:

• 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, and optionally an ethylenically unsaturated monomer to form a pre-emulsion;
• 2) shearing said pre-emulsion to produce a mini-emulsion;
• 3) polymerizing said miniemulsion in a polymerization zone to produce said aqueous dispersion;
• and
• 4) contacting said pre-emulsion, miniemulsion, or aqueous dispersion with at least one acid-generating compound to produce said acid-treated aqueous dispersion.

A process to produce an acid-treated aqueous dispersion, said process comprising:

• 1) contacting at least one fluoroalkyl monomer, at least one ethylencially unsaturated monomer having up to 12 carbon atoms, water, at least one nonionic water-dispersible polyester, at least one external crosslinking agent, and at least one reactive surfactant to produce a pre-emulsion;
• 2) shearing said pre-emulsion to produce a mini-emulsion;
• 3) adding said pre-emulsion to an emulsion polymerization reactor;
• 4) contacting at least one water-dispersible polyester with water to produce a polyester/water mixture and routing said polyester/water mixture to said emulsion polymerization reactor;
• 5) contacting at least one initiator and water to produce an initiator solution and routing said initiator solution to said emulsion polymerization reactor to produce a reaction mixture;
• 6) polymerizing said reaction mixture to produce said aqueous dispersion;
• and
• 7) contacting said aqueous dispersion with at least one acid-generating compound to produce said acid-treated aqueous dispersion.

A process to produce an acid-treated aqueous dispersion, said process comprising:

• 1) contacting a mixed fluoroacrylate monomer stream, lauryl methacrylate, water, polyethylene glycol polyester, n-methyol acrylamide, and polyoxyethylene alkyl propenylphenyl ether sulfate to produce a pre-emulsion;
• wherein said mixed fluoroacrylate monomer stream comprises 2-(perfluoroallkyl)ethyl acrylate;
• 2) shearing said pre-emulsion to produce a mini-emulsion;
• 3) adding said pre-emulsion to an emulsion polymerization reactor;
• 4) contacting a polyethylene glycol polyester dispersion with water to produce a polyester/water mixture and routing said polyester/water mixture to said emulsion polymerization reactor;
• 5) contacting at least one initiator and water to produce an initiator solution and routing said initiator solution to said emulsion polymerization reactor to produce a reaction mixture;
• 6) polymerizing said reaction mixture to produce said aqueous dispersion and;
• 7) contacting said aqueous dispersion with sulfonic acid to produce said acid-treated aqueous dispersion.

A process to produce an aqueous dispersion, said process comprising:

• 1) contacting at least one fluoroalkyl monomer, at least one ethylencially unsaturated monomer having up to 12 carbon atoms, water, at least one water-dispersible polyester, at least one internal crosslinking agent, at least one external crosslinking agent, at least one reactive surfactant, and at least one chain transfer agent to produce a pre-emulsion;
• 2) shearing said pre-emulsion to produce a mini-emulsion;
• 3) contacting at least one water-dispersible polyester with water to produce a polyester/water mixture and routing said polyester/water mixture to an emulsion polymerization reactor;
• 4) contacting at least one initiator and water to produce an initiator solution;
• 5) adding a portion of said initiator feed to said emulsion polymerization reactor;
• 6) charging said miniemulsion and initiator solution to said emulsion polymerization reactor over a period of about 1 to about 10 hours under polyermization conditions to produce said aqueous dispersion;
• and
• 7) contacting said aqueous dispersion with at least one acid-generating compound to produce said acid-treated aqueous dispersion.

A process to produce an aqueous dispersion, said process comprising:

• 1) contacting a mixed fluoroacrylate monomer stream, lauryl methacrylate, water, polyethylene glycol polyester, n-methyol acrylamide, diallylmaleate, n-dodecylmercaptan, and polyoxyethylene alkyl propenylphenyl ether sulfate to produce a pre-emulsion;
• wherein said mixed fluoroacrylate monomer stream comprises 2-(perfluoroallkyl)ethyl acrylate;
• 2) shearing said pre-emulsion to produce a mini-emulsion;
• 3) contacting a polyethylene glycol polyester dispersion with water to produce a polyester/water mixture and routing said polyester/water mixture to an emulsion polymerization reactor;
• 4) contacting at least one initiator and water to produce an initiator solution;
• 5) adding a portion of said initiator feed to said emulsion polymerization reactor;
• 6) charging said miniemulsion and initiator solution to said emulsion polymerization reactor over a period of about 1 to about 10 hours under polymerization conditions to produce said aqueous dispersion;
• and
• 7) contacting said aqueous dispersion with sulfonic acid to produce said acid-treated aqueous dispersion.