A water and oil repellent composition having excellent durability, which can impart excellent water and oil repellency to an object, even in a process at low temperatures, and which enables water and oil repellent treatment providing a soft hand. A water and oil repellent composition which comprises, as an essential component, a copolymer containing polymerization units of the following monomer (a) and polymerization units of the following monomer (b):
monomer (a): an Rf group-containing monomer which forms a photopolymer having no melting point or a melting point of at most 55°C attributable to fine crystals derived from the Rf groups and having a glass transition point of at least 20°C.
monomer (b): a monomer having no Rf group and having a cross-linkable functional group.
一种防
水防油组合物,具有优异的耐久性,即使在低温加工过程中也能赋予物体优异的防
水防油性能,并能进行防
水防油处理,使手感柔软。一种防
水防油组合物,其主要成分是含有以下单体(a)的聚合单元和以下单体(b)的聚合单元的共聚物:
单体(a):一种含 Rf 基团的单体,它形成的光聚合物没有熔点或熔点不超过 55°C,熔点归因于 Rf 基团产生的细小晶体,
玻璃化转变点至少为 20°C。
单体 (b):不含 Rf 基团但具有可交联官能团的单体。