Antifouling composition, method for its production and product treated therewith
AssigneeAsahi Glass Company, Limited
InventorsToyomichi Shimada, Akane Sanekata, Takashige Maekawa
Life of this patent
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Abstract
An antifouling composition comprising, as an effective component, a copolymer comprising the following polymer units (a), (b), (c) and (d): (a) polymer units of a (meth)acrylate having a polyfluoroalkyl group, (b) polymer units of a (meth)acrylate having a polyoxyethylene group, (c) polymer units of a (meth)acrylate having a polyoxypropylene group, and (d) polymer units of a (meth)acrylate having a blocked isocyanate group.
Claims14
An antifouling composition comprising, as an effective component, a copolymer comprising the following polymer units (a), (b), (c) and (d):
- (a) a polymer unit of a (meth)acrylate having a polyfluoroalkyl group,
- (b) a polymer unit of a (meth)acrylate having a polyoxyethylene group,
- (c) a polymer unit of a (meth)acrylate having a polyoxypropylene group, and
- (d) a polymer unit of a (meth)acrylate having a blocked isocyanate group;
- wherein said polyflouroalkyl group is represented by formula (1)
- Rf—Q—OCOCR═CH2 (1);
- wherein Rf=CnF2n+1, and n=1-20
- Q is a —(CH2)pCON(CH2)q— group,
- a —(CH2)pNHCO(CH2)q— group,
- a —(CH2)pOCO—NH—(CH2)q— group,
- a —(CH2)pNH—OCO—(CH2)p— group,
- a —(CH2)pNR1SO2(CH2)q— group,
- a —(CH2)pNHCO—NH—(CH2)q— group, or
- a —(CH2)pCH(OH)—(CH2)p— group;
- and
- R1=H, or CnH2n+1,
- p and q>0,
- p+q=from 1 to 22, and
- R=H, or methyl.
A method for producing an antifouling composition, which comprises copolymerizing a polymerizable monomer mixture comprising (a) a (meth)acrylate having a polyfluoroalkyl group, (b) a (meth)acrylate having a polyoxyethylene group, (c) a (meth) acrylate having a polyoxypropylene group and (d) a (meth)acrylate having a blocked isocyanate group, in the presence of a medium, wherein said polyflouroalkyl group is represented by formula (1)
- Rf—Q—OCOCR═CH2 (1);
- wherein Rf=CnF2n+1, and n=1-20
- Q is a —(CH2)pCON(CH2)q— group,
- a —(CH2)pNHCO(CH2)q— group,
- a —(CH2)pOCO—NH—(CH2)q— group,
- a —(CH2)pNH—OCO—(CH2)q— group,
- a —(CH2)pNR1SO2(CH2)q— group,
- a —(CH2)pNHCO—NH—(CH2)q— group, or
- a —(CH2)pCH(OH)—(CH2)q— group;
- and
- R1=H, or CnH2n+1,
- p and q>0,
- p+q=from 1 to 22, and
- R=H, or methyl.
Dependencies are inferred from the claim text.