Fluorine-containing copolymer and surface-modifying agent comprising the same as active ingredient

2:

• The fluorine-containing copolymer according to claim 1, which has a weight average molecular weight Mw of 10,000 to 1,000,000.

3:

• The fluorine-containing copolymer according to claim 1, wherein the fluorine-containing monomer [I] and the benzyl (meth)acrylate or styrene are copolymerized at a weight ratio of 1 to 99:99 to 1.

4:

• The fluorine-containing copolymer according to claim 1, wherein the fluorine-containing monomer [I] and the benzyl (meth)acrylate or styrene are copolymerized at a weight ratio of 50 to 95:50 to 5.

5:

• The fluorine-containing copolymer according to claim 1, wherein Si group-containing crosslinkable monomer [II] is copolymerized at a ratio of 0.01 to 30 wt. % in the fluorine-containing copolymer

6:

• A surface-modifying agent comprising the fluorine-containing polymer according to claim 1 as an active ingredient.

7:

• The surface-modifying agent according to claim 6, wherein the agent is prepared as an organic solvent solution.

8:

• The surface-modifying agent according to claim 7, wherein the agent is prepared as a fluorine-containing organic solvent solution.

9:

• The surface-modifying agent according to claim 6, wherein the agent is used for a metal substrate.

10:

• The surface-modifying agent according to claim 6, wherein the agent is used as a water- and oil-repellent.

11:

• The surface-modifying agent according to claim 9, wherein the agent is used as a water- and oil-repellent.