Fluorinated short carbon atom side chain and polar group containing polymer, and flow, or leveling, or wetting agents thereof

A fluorine containing polymer, comprising:

• a polyoxetane having from 2 to about 100 repeat units, DP, derived from an oxetane monomer, said polyoxetane having at least one pendant group comprising an Rf group, wherein each Rf, independently, is a fluorinated linear alkyl having from 1 to about 7 carbon atoms or a fluorinated branched alkyl wherein the longest chain is an alkyl having from 1 to about 7 carbon atoms and each branched chain, independently, having from 1 to about 3 carbon atoms, and each Rf, whether linear or branched, has at least one carbon atom bonded to at least one fluorine atom, and wherein each said Rf, independently, has at least 25% of the non-carbon atoms of said alkyl being fluorine atoms and the remaining non-carbon atoms being H, I, Cl, or Br;
• optionally said polyoxetane being copolymerized with at least one comonomer;
• and
• said polyoxetane having at least one polar group covalently bonded thereto, and wherein each said at least one polar group, independently, is an anion-countercation;
• or a cation-counteranion;
• or an amphoteric group.

A fluorine containing copolymer, comprising:

• the reaction product of
• (i) at least one polyoxetane having an ester linkage with (ii) polyester forming monomers or at least one polyester to form said copolymer, said ester linkage being derived from the reaction of a hydroxyl group of said polyoxetane with a carboxylic acid group of a polycarboxylic acid or an anhydride thereof;
• said polyoxetane having from 2 to about 200 repeat units derived from an oxetane monomer having at least one pendant —CH2—O—(CH2)n—Rf group, with each n being, independently, 1 to about 6;
• wherein each Rf independently, is a fluorinated linear alkyl having from 1 to about 7 carbon atoms or a fluorinated branched alkyl wherein the longest chain is an alkyl having from 1 to about 7 carbon atoms and each branched chain, independently, having from 1 to about 3 carbon atoms, and each Rf, whether linear or branched, has at least one carbon atom bonded to at least one fluorine atom, wherein each said Rf, independently, has at least 25% of the non-carbon atoms of said alkyl being fluorine atoms and the remaining non-carbon atoms being H, I, Cl, or Br;
• optionally said polyoxetane being copolymerized with at least one cyclic ether comonomer having from 2 to 4 carbon atoms in the ring;
• wherein said at least one polyester is derived from an ester condensation reaction of, and wherein said polyester forming monomers are, at least one polycarboxylic acid or an anhydride thereof with at least one polyol or at least one cyclic ether, and wherein said poly(oxetane-ester)copolymer has at least one polar group covalently bonded thereto,
• wherein each said at least one polar group, independently, is an anion-countercation;
• or a cation-counteranion;
• or an amphoteric group;
• and
• optionally (iii) an amino resin.

A wetting agent, or a flow agent, or a leveling agent, comprising:

• a polymer derived from at least one cyclic ether having a total of from 2 to about 5 carbon atoms in the ring and from 1 to about 20 carbon atoms substituted on any ring carbon atom, said cyclic ether having at least one pendant group comprising an Rf group, wherein each Rf, independently, is a fluorinated linear alkyl having from 1 to about 7 carbon atoms or a fluorinated branched alkyl wherein the longest chain is an alkyl having from 1 to about 7 carbon atoms and each branched chain, independently, having from 1 to about 3 carbon atoms, and each Rf, whether linear or branched, has at least one carbon atom bonded to at least one fluorine atom, and wherein each said Rf, independently, has at least 25% of the non-carbon atoms of said alkyl being fluorine atoms and the remaining non-carbon atoms being H, I, Cl, or Br;
• optionally said polymer being derived from at least one comonomer;
• and
• said polymer having at least one polar group covalently bonded thereto, and wherein said wetting, or flow, or leveling agent has a surface tension of from about 25 to about 70 millinewtons per meter at 0.1% by weight of said polymer composition in water.

A powder coating, comprising:

• a polyoxetane having from 2 to about 100 repeat units derived from oxetane monomers, said polyoxetane having at least one pendant group comprising an Rf group, wherein each Rf, independently, is a fluorinated linear alkyl having from 1 to about 7 carbon atoms or a fluorinated branched alkyl wherein the longest chain is an alkyl having from 1 to about 7 carbon atoms and each branched chain, independently, having from 1 to about 3 carbon atoms, and each Rf, whether linear or branched, has at least one carbon atom bonded to at least one fluorine atom, and wherein each said Rf, independently, has at least 25% of the non-carbon atoms of said alkyl being fluorine atoms and the remaining non-carbon atoms being H, I, Cl, or Br;
• optionally said polyoxetane being derived from at least one comonomer;
• and
• said polyoxetane having at least one polar group covalently bonded thereto.

A composition comprising:

• a polymeric material having at least one covalently bonded nonionic polar end group and having at least one pendant group comprising a —CH2O—(CH2)nRf group where each said n is from 1 to about 6 and each said at least one nonionic polar end group, independently, is a carbonyl, or a nitrile, or a thiol, or a cyano group;
• wherein each said Rf group, independently, is a fluorinated linear alkyl having from 1 to about 7 carbon atoms, or a fluorinated branched alkyl wherein the longest chain is from 1 to about 7 carbon atoms and each branch, independently, contains from 1 to about 3 carbon atoms, and each Rf, whether linear or branched, has at least one carbon atom bonded to at least one fluorine atom, and wherein each Rf group, independently, has at least 25% of the non-carbon atoms being fluorine atoms and the remaining non-carbon atoms being H, I, Cl, or Br, and
• wherein said polymer is derived from at least one cyclic ether monomer having at total of from 2 to 5 carbon atoms in the ring with a total of 1 to about 20 substituted carbon atoms, or dioxane, or dioxalane, or trioxane, and
• optionally said polymer being derived from a comonomer.

A fluorine containing copolymer, comprising:

• the reaction product of
• (i) at least one polyoxetane having an ester linkage with (ii) polyester forming monomers or at least one polyester to form said copolymer, said ester linkage being derived from the reaction of a hydroxyl group of said polyoxetane with a carboxylic acid group of a polycarboxylic acid or an anhydride thereof;
• said polyoxetane having from 2 to about 200 repeat units derived from an oxetane monomer having at least one pendant —CH2—O—(CH2)n—Rf group, with each n being, independently, 1 to about 6;
• wherein each Rf independently, is a fluorinated linear alkyl having from 1 to about 7 carbon atoms or a fluorinated branched alkyl wherein the longest chain is an alkyl having from 1 to about 7 carbon atoms and each branched chain, independently, having from 1 to about 3 carbon atoms, and each Rf, whether linear or branched, has at least one carbon atom bonded to at least one fluorine atom, wherein each said Rf, independently, has at least 25% of the non-carbon atoms of said alkyl being fluorine atoms and the remaining non-carbon atoms being H, I, Cl, or Br;
• optionally said polyoxetane being copolymerized with at least one cyclic ether comonomer having from 2 to 4 carbon atoms in the ring;
• wherein said at least one polyester is derived from an ester condensation reaction of, and wherein said polyester forming monomers are, at least one polycarboxylic acid or an anhydride thereof with at least one polyol or at least one cyclic ether, and wherein said poly(oxetane-ester)copolymer has at least one polar group covalently bonded thereto,
• wherein each said at least one polar group, independently, is a carbonyl, or a nitrile, or a thio, or a cyano group;
• and
• optionally (iii) an amino resin.