摘要:
(1) A perfluoroalkyl diester of maleic acid or fumaric acid, (2) a copolymer obtained by polymerizing the perfluoroalkyl ester, a lower alkyl (meth)acrylate and, if necessary, styrene, and (3) a stainproofing agent comprising the copolymer give excellent water repellency, oil repellency and stainproof properties which have never been heretofore obtained.
摘要:
A stainproofing composition having water- and oil-repellency, containing a polymer emulsion prepared by dissolving at least one polyfluoroalkyl group-containing compound selected from the group consisting of a polyfluoroalkyl group-containing (meth)acrylate polymer, a polyfluoroalkyl group-containing polyester, a polyfluoroalkyl group-containing maleate and a polyfluoroalkyl group-containing fumarate in at least one monomer selected from the group consisting of a (meth)acrylate ester, a vinyl ester, a styrene compound and vinylidene chloride, vinyl chloride, emulsifying the resultant solution in water to prepare an oil-in-water emulsion, and polymerizing the emulsion exhibits excellent water- and oil-repellency and stainproof properties. It is also superior in sedimentation stability of the emulsion.
摘要:
A blocked isocyanate emulsion containing a blocked isocyanate, a surfactant and a liquid medium, wherein a weight ratio of the blocked isocyanate to the surfactant is from 60/40 to 90/10 and an average particle diameter is not larger than 250 nm, gives a stable water- and oil-repellent composition which has no sedimentation for a long period of time even if the blocked isocyanate emulsion is mixed with a water- and oil-repellent.