Patent ID: 8722801

Claim:
A process for producing a hydrolyzable silyl group-containing fluoropolymer (B), which comprises reacting a hydroxy group-containing fluoropolymer (A) and a compound (1) represented by the following formula (1) in the presence of a reaction solvent and a compound (2) represented by the following formula (2) under such a condition that the amount of the compound (2) is from 45 to 122 ppm by mass of metal in the compound (2) based on the hydroxy group-containing polymer (A), to obtain a fluoropolymer (B) having a group represented by the following formula (3): OCN(CH 2 ) m SiX 1 n R 1 3−n (1) wherein in the formula (1), R 1 is a hydrogen atom or a C 1-10 monovalent hydrocarbon group, X 1 is a C 1-5 alkoxy group, n is an integer of from 1 to 3, and m is an integer of from 1 to 5, —OC(O)NH(CH 2 ) m SiX 1 n R 1 3−n (3) wherein in the formula (3), R 1 , X 1 , n and m are as defined above, wherein said compound (2) is at least one compound selected from the group consisting of tin 2-ethylhexanoate, zinc 2-ethylhexanoate, zirconium 2-ethylhexanoate and aluminum tris-acetylacetonate.