| 摘要 |
An adhesive composition comprises 100 parts by weight of a polymerizable monomer comprising (a) 1.5 to 50 parts by weight of a compound represented by one of Formulae I and II: <CHEM> where each of R1 and R1 min is hydrogen or methyl, R2 is a bivalent organic residue having from 4 to 40 carbon atoms, each of X1 and X2 is -O-, -S- or -NH-, a is 0 or 1, and R3 is a group of the formula <CHEM> having 6 to 40 carbon atoms, where each of R4 and R4 min is a hydrocarbon group having 1 to 29 carbon atoms optionally having as substituent(s) halogen, hydroxy, amino or carboxy, b is 0, 1, 2 or 3, the R4's, if more than one are present, being the same or different, and at least one of R4 and R4 min having at least three carbon atoms, and Z is - O , -COO- or - NH, and (b) 50 to 98.5 parts by weight of a vinyl monomer copolymerizable with the said compound; and 0.01 to 20 parts by weight of a curing agent. It shows a superior adhesive strength on any of the hard tissues in a living body, such as teeth and bones, as well as on metals, organic polymers and ceramics. It maintains a high adhesive strength for a long time even if it is exposed to moisture, or immersed in water. It is particularly effective for use in dentistry, though it is useful for a variety of other purposes, too. |
