| 摘要 |
Dental cement composition comprising a polymerizable polyacidic polymer having repeating units in the polymer backbone, which are represented by the following formula (III):
wherein
X represents O, S, or NR', whereby R' represents a hydrogen atom or a straight or branched C 1 -C 6 alkyl group, C 3 -C 6 cycloalkyl group, or C 4 -C 8 cycloalkylalkyl group,
Y a group of the following formula (IV)
wherein each of L 3 and L 4 ,
which are independent from each other represents a single bond, a straight or branched C 1 -C 6 alkylene group, a straight or branched C 1 -C 6 alkenylene, or a straight or branched C 1 -C 20 alkylene group which includes 1 to 8 atoms selected from oxygen and sulfur atoms,
X' represents O, S, or NR", whereby R" represents a hydrogen atom or a straight or branched C 1 -C 6 alkyl group, C 3 -C 6 cycloalkyl group, or C 4 -C 8 cycloalkylalkyl group,
m is 0 to 3, and
n is 0, wherein
L 3 in formula (IV) represent a straight or branched C1-C6 alkenylene, or other repeating units of the following formula (I), (II), or the above formula (III) or (IV) are present wherein n is 1, 2 or 3:
wherein each of L 1 and L 2 ,
which are independent from each other represents a single bond, a straight or branched C 1 -C 6 alkylene group, a straight or branched C 1 -C 6 alkenylene, or a straight or branched C 1 -C 20 alkylene group which includes 1 to 8 atoms selected from oxygen and sulfur atoms, and
X and Y are as defined above. |
