Patent ID: 6048913
Filing Date: 2000-04-11
Classification: A61K

Abstract:
A dental coating composition, comprising(a) a polymer of polymerized vinyl monomers which has in a molecule thereof one or more phosphorus series acid residues selected from the group consisting of phosphoric acid, phosphonic acid and phosphinic acid, and halides and salts thereof and has a weight-average molecular weight of 10,000 to 5,000,000; and(b) a saturated C.sub.1-5 alcohol or a mixture of water and a saturated C.sub.1-5 alcohol,wherein the amount of said polymer (a) soluble in 100 g of anhydrous ethanol at 20.degree. C. is at least 1 g, andwherein said polymer (a) is a homopolymer or copolymer having a structural unit represented by the following formula (11): ##STR19## wherein R.sup.1 represents a hydrogen atom or a hydrocarbon group which may be substituted by a fluorine atom, X represents an alkylene, COOR.sup.1 --, CON(R)R.sup.1 -- or COO((CH.sub.2).sub.m O).sub.n R.sup.3 -- group, in which R.sup.2 represents a hydrogen atom or a C.sub.1-5 hydrocarbon group, m is 1 to 10, n is 1 to 30 and R.sup.3 represents a C.sub.1-20 divalent hydrocarbon group which may be substituted by a hydroxy, alkoxy or aryloxy group, and Y represents a phosphorus series acid residue selected from the group consisting of phosphoric acid, phosphonic acid and phosphinic acid.