| abstract |
The present invention provides a liquid repellent composition that can obtain processed articles with excellent liquid repellency, has good stability, and does not have problems such as ammonia or organic amine-derived odors, its manufacturing method, and a grease-resistant paper manufacturing method. A liquid repellent composition containing a copolymer (A), alkali metal ions and an aqueous medium. The aforementioned copolymer (A) has the formula R F -QXC(O)C(R)=CH 2 (R F : carbon number 4 ~6 perfluoroalkyl group, Q: divalent hydrocarbon group without fluorine atom, X: -O- or NH-, R: hydrogen atom, methyl group or chlorine atom) The monomer (a) is the main constituent unit And the main constituent unit of the monomer (b) having an anionic group; the mass average molecular weight of the copolymer (A) is 84000 or less; at least a part of the anionic group is an alkali metal ion; relative to the anionic group, The molar ratio of the alkali metal ions in the liquid repellent composition is 0.6 to 1.29. |