| abstract |
A cured product having excellent balance of hydrophilicity and abrasion resistance and retaining high hydrophilicity even after washing with water and maintaining hydrophilicity because the contaminants are hardly attached (or easily desorbed) even when stored for a long period of time or heated (for example, , And a composition capable of obtaining the cured product. A composition comprising the copolymer (i) and the amino resin (ii) containing a structural unit represented by a specific chemical formula is cured to prepare a cured product. |