| 摘要 |
PROBLEM TO BE SOLVED: To provide an isocyanate functional prepolymer having storage stability, i., e., without showing any marked viscosity elevation during a storage period, and also without having defects in conventional technologies. SOLUTION: This isocyanate functional prepolymer contains at least one structural unit expressed by general formula (I) or (II) [wherein, R, R' are each a 1-12C alkylene, a 5 to 12C cycloalkylene or a 6-22C aromatic hydrocarbon group containing a hetero atom as desired; R" is a 1-12C alkyl, a 5-12C cycloalkyl or a 6-22C aromatic hydrocarbon group containing a hetero atom as desired; and X is a halogen atom]. COPYRIGHT: (C)2008,JPO&INPIT |
