申请人:KURARAY CO., LTD.
公开号:EP0115948A1
公开(公告)日:1984-08-15
An adhesive comprises (a) 1 part by weight of a compound represented by the formula
in which each R1 and R' is a hydrogen atom or a methyl group, each of
X1, X', X2 and X2' is 0, S, or NR*, where R* is a hydrogen atom or a C1-6 alkyl group,
m is 1, 2, 3 or 4,
n is 0, 1, 2, 3 or 4, each of
k and k' is 0 or 1,
Ra is a C8-40 organic residue having a valency of (m + 1), and Ra' is a C1-40 organic redisue having a valency of (n + 1); and (b) 0 to 199 parts by weight of a manomerthat is copolymerizable with the compound (I).
This adhesive firmly adheres to the hard tissues of the living body such as teeth and bones, metallic materials, organic polymeric materials, and ceramics. It keeps its high adhesive, strength for a long period of time under wet conditions, and is particularly useful in dentistry.
一种粘合剂包括 (a) 1 份(按重量计)由式表示的化合物
其中 R1 和 R' 各为氢原子或甲基,R2 和 R' 各为氢原子或甲基,R3 和 R' 各为氢原子或甲基,R4 和 R' 各为氢原子或甲基。
X1、X'、X2 和 X2' 均为 0、S 或 NR*,其中 R* 为氢原子或 C1-6 烷基、
m 是 1、2、3 或 4、
n 是 0、1、2、3 或 4,其中每个
k 和 k' 均为 0 或 1、
(b) 0 至 199 重量份可与化合物(I)共聚的单体。
这种粘合剂能牢固地粘附在牙齿和骨骼等人体硬组织、金属材料、有机聚合材料和陶瓷上。在潮湿条件下,它能长期保持较高的粘合强度,尤其适用于牙科。