Method of manufacturing a fluorocarbon-based coating film

A method of manufacturing a fluorocarbon-based polymer coating film comprising the steps of:

• contacting a substrate having a surface containing hydroxyl groups with a non-aqueous solvent comprising a material comprising chlorosilyl groups;
• washing the contacted substrate with a non-aqueous solvent to remove unreacted material;
• coating the washed substrate surface with either (1) a non-aqueous solvent comprising a compound comprising a fluorocarbon group and a chlorosilyl group or (2) a solvent comprising (a) a compound comprising a fluorocarbon group, and an alkoxysilane alkoxysilyl group or (b) a compound of the following formula:
• CF3—(CF2)n—(R)m—SiYq(OA)3-q
• where n represents 0 or an integer;
• R represents an alkyl alkylene group or a hydrocarbon substituted group containing C═C or C≡C, a silicon atom or an oxygen atom;
• m represents 0 or 1;
• Y represents a hydrogen atom, an alkyl group, an alkoxy group, a fluorine-containing alkoxy group or a fluorine-containing alkyl group;
• A represents a hydrogen atom;
• and q represents 0, 1 or 2;
• and
• baking the substrate after said contacting step, washing step and coating step.

A method of manufacturing a fluorocarbon-based polymer coating film comprising:

• a. contacting a substrate having a surface containing hydroxyl groups with a non-aqueous solvent comprising a material comprising chlorosilyl groups to form a siloxane-based film on the substrate surface, wherein the substrate is made of a plastic material treated in a plasma atmosphere containing oxygen;
• and
• b. coating the siloxane-based film with a non-aqueous solvent comprising a compound comprising a fluorocarbon group and a chlorosilyl group represented by the formula:
• CF3—(CF2)n(R)m—SiXpCl3-p where n represents 0 or an integer;
• R represents an alkylene group or a hydrocarbon substituted group containing C═C or C≡C, a silicon atom or an oxygen atom;
• m represents 0 or 1, X represents a hydrogen atom or an alkyl group;
• p represents 0, 1 or 2.

A method of manufacturing a fluorocarbon-based polymer coating film comprising:

• a. contacting a substrate having a surface containing hydroxyl groups with a non-aqueous solvent comprising a material comprising chlorosilyl groups to form a siloxane-based film on the substrate surface;
• b. washing the contacted substrate with a non-aqueous solvent to remove unreacted material;
• and
• c. coating the siloxane-based film with a non-aqueous solvent comprising a compound comprising a fluorocarbon group and a chlorosilyl group, represented by the formula:
• CF3—(CF2)n—(R)m—SiXpCl3-p where n represents 0 or an integer;
• R represents an alkylene group or a hydrocarbon substituted group containing C═C or C≡C, a silicon atom or an oxygen atom, m represents 0 or 1, X represents a hydrogen atom or an alkyl group;
• p represents 0, 1 or 2.

A vehicle part comprising a substrate selected from the group consisting of ABS resin, cellulose plastic, fiber reinforced plastic, phenolic resin, polyacetal, polyamide, polyacrylate, polybutylene terephthalate, poly(amino-bismaleimide), methacrylate resin, polypropylene, polyphenylene oxide, polyurethane, and unsaturated polyester resin, and a fluorocarbon-based polymer coating film adhered thereto, wherein the fluorocarbon-based polymer coating is adhered to the substrate by a process comprising:

• a. contacting hydroxyl groups at a surface of the substrate with a non-aqueous solvent comprising a material containing chlorosilyl groups to form a siloxane-based film on the substrate;
• and
• b. coating the siloxane-based film with a non-aqueous solvent comprising a compound comprising a fluorocarbon group and a chlorosilyl group, represented by the formula:
• CF3—(CF2)n—(R)mSiXpCl3-p where n represents 0 or an integer;
• R represents an alkylene group or a hydrocarbon substituted group containing C═C or C≡C, a silicon atom or an oxygen atom;
• m represents 0 or 1, X represents a hydrogen atom or an alkyl group;
• p represents 0, 1 or 2.