| 摘要 |
<p>Provided is a surface treatment agent in which a fluorine-containing monomer, particularly a monomer containing a fluoroalkyl group, is not used. Disclosed is a surface treatment agent that is a water-based emulsion that includes: (1) a non-fluorine polymer having (i) a repeating unit derived from a long-chain (meth)acrylate ester monomer represented by the formula CH2=CA11− C(=O) − O − A12 (in the formula, A11 is a hydrogen atom or a methyl group, and A12 is a C18-30 straight-chain or branched aliphatic hydrocarbon group), and (ii) a repeating unit derived from a (meth)acrylate monomer having a cyclic hydrocarbon group; (2) a surfactant including a nonionic surfactant and/or a cationic surfactant; and (3) a liquid medium including water.</p> |
