NON-AQUEOUS COMPOSITION COMPRISING PARTIALLY FLUORINATED METHACRYLIC POLYMERS

1 . A solvent-based non-aqueous fluorinated methacrylate polymer comprising repeating units in any sequence from (1) at least one fluorinated methacrylate, (2) at least one non-fluorinated alkyl acrylate, (3) at least one non-fluorinated hydroxyalkyl methacrylate, and 4) at least one amino-containing (meth)acrylate

provided that

a) the repeating unit of fluorinated methacrylate is present in a range of from 40% to 80% by weight of total monomers added,

b) the repeating unit of non-fluorinated alkyl acrylate is present in a range of from 10% to 35% by weight of total monomers added, and

c) the repeating unit of non-fluorinated hydroxyalkyl methacrylate is present in a range of from 5% to 25% by weight of total monomers added,

d) the repeating unit of the amino-containing (meth)acrylate is present in a range of from 0.5% to 15% by weight of total monomers added and

e) the total of all repeating units is 100% by weight.

2 . The polymer of claim 1 wherein the fluorinated methacrylate is:

wherein R f is C 2 to C 10 fluoroalkyl optionally interrupted by 1 to 3 —O—, —CH 2 —, —CHF—, or combinations thereof;

Q is —R 2 -A-, —SO 2 —N(R 2 )—R 2 —O—, —CO—N(R 3 )—R 2 —O—, —CH 2 CH(OR 3 )CH—O—, —R 2 —SO 2 —N(R 3 )—O—, or —R 2 —O—C(O)—N(R 3 )—R 2 —O—;

A is O or S;

R 1 is CH3;

R 2 is C1 to C10 alkylene; and

R 3 is H or C 1 to C 4 acyl.

3 . The polymer of claim 2 wherein R f is C 2 to C 6 , Q is —R 2 -A-, R1 is H or CH3.

4 . The composition of claim 3 , wherein R f is C 6 , R 2 is C 2 alkylene, and A is O.

5 . The polymer of claim 1 wherein the non-fluorinated alkyl acrylate is:

where R 4 is C 8 to C 40 linear or branched alkyl; and R 5 is H, or mixtures thereof.

6 . The polymer of claim 5 wherein R 4 is selected from the group consisting of octyl, 2-ethylhexyl, decyl, isodecyl, lauryl, cetyl, or stearyl.

7 . The polymer of claim 5 wherein R 4 is selected is selected from the group consisting of 2-ethylhexyl acrylate, lauryl acrylate and stearyl acrylate.

8 . The polymer of claim 1 wherein the hydroxyalkyl methacrylate is

wherein R 6 is C 2 to C 4 alkyl; and

R 7 is CH 3 has an alkyl chain length in the range between 2 and 4 carbon atoms.

9 . The polymer of claim 8 is 2-hydroxyethyl methacrylate.

10 . The polymer of claim 1 wherein the amino-containing (meth)acrylate is:

wherein R 8 is an ethylene or propylene group;

R 9 is H or CH 3 ;

R 10 and R 11 are each independently methyl, ethyl, or propyl groups.

11 . The polymer of claim 10 , wherein the amino-containing (meth)acrylate is dimethylaminoethyl(meth)acrylate or diethylaminoethyl(meth)acrylate.

12 . A method for treating a leather substrate comprising contacting the leather substrate with a solvent-based fluorinated methacrylate polymer to provide water and oil repellency, wherein the fluorinated methacrylate polymer comprises repeating units in any sequence from (1) at least one fluorinated methacrylate, (2) at least one non-fluorinated alkyl acrylate, (3) at least one non-fluorinated hydroxyalkyl methacrylate, and 4) at least one amino-containing (meth)acrylate, provided that

a) the repeating unit of fluorinated methacrylate is present in a range of from 40% to 80% by weight of total monomers added,

b) the repeating unit of non-fluorinated alkyl acrylate is present in a range of from 10% to 35% by weight of total monomers added, and

c) the repeating unit of non-fluorinated hydroxyalkyl methacrylate is present in a range of from 5% to 25% by weight of total monomers added,

d) the repeating unit of the amino-containing (meth)acrylate is present in a range of from 1% to 20% by weight of total monomers added and

e) the total of all repeating units is 100% by weight.

13 . The method of claim 12 wherein the contacting is by spray, dipping, foam, nip, immersion, brush, roller, sponge, mat techniques.

14 . The method of claim 12 wherein the contacting is by spray, dipping, and brush techniques.

15 . A method for treating a hard surface substrate comprises contacting the hard surface substrate with a solvent-based fluorinated methacrylate polymer to provide water repellency, oil repellency, and stain resistance wherein the fluorinated methacrylate polymer comprises repeating units in any sequence from (1) at least one fluorinated methacrylate, (2) at least one non-fluorinated alkyl acrylate, (3) at least one non-fluorinated hydroxyalkyl methacrylate, and 4) at least one amino-containing (meth)acrylate,

provided that

a) the repeating unit of fluorinated methacrylate is present in a range of from 40% to 80% by weight of total monomers added,

b) the repeating unit of non-fluorinated alkyl acrylate is present in a range of from 10% to 35% by weight of total monomers added, and

c) the repeating unit of non-fluorinated hydroxyalkyl methacrylate is present in a range of from 5% to 25% by weight of total monomers added,

d) the repeating unit of the amino-containing (meth)acrylate is present in a range of from 1% to 20% by weight of total monomers added and

e) the total of all repeating units is 100% by weight.

16 . The method of claim 15 wherein the contacting is by brush, spray, roller, doctor blade, wipe and dip techniques.

17 . The method of claim 15 wherein the contacting is by spray and wet-on-wet techniques.

18 . The method of claim 15 wherein the hard surface substrate is unglazed concrete, brick, tile, stone, granite, limestone, grout, mortar, composite materials, terrazzo, gypsum board, marble, statuary, monuments, or wood.

19 . A substrate treated with the method of claim 14 which is unglazed concrete, brick, tile, stone, granite, limestone, grout, mortar, composite materials, terrazzo, gypsum board, marble, statuary, monuments, or wood.

20 . The polymer of claim 1 wherein the polymer excludes any repeating units derived from vinylidene chloride.