Poval KM-118 Carboxylated polyvinyl alcohol Kuraray Polyvinyl alcohol (PVOH) ADHESIVE At the same degree of hydrolysis, the carboxylated polymer (KURARAY K-polymer) has stronger hydrophilic property than conventional PVA, namely the K-polymer dissolves in water more easily. Even if the degree of hydrolysis is low, K-polymer dissolves in water very well. Therefore, K-polymer, for example KL-506, has a good affinity, as well as the good water solubility, to hydrophobic substances such as polyester, polystyrene etc. K-polymer has a good hygroscopic efficiency at the standard condition (20, 65% RH) or under higher humidity so that its film is soft and flexible. K-polymer can react with Aluminum Sulfate Al2(SO4)3 to form the gel. This property will make K-polymer work effectively in the paper sizing. K-polymer is stable for the salting out effect compared with the conventional PVA, which has the same degree of hydrolysis. The dissolving method is same as conventional PVA. Adhesives : paper, remoistenable adhesive and urea formalin resin (plywood) Water soluble, carboxylated polyvinyl alcohol resin. Used in urea formalin resins for plywood. Possesses strong hydrophilic property, low degree of hydrolysis, good affinity to hydrophobic substances such as polyester and polystyrene, good hygroscopic efficiency and good stability for the salting out effect. Provides soft and flexible films.