PROBLEM TO BE SOLVED: To provide a silane-terminated polyether derivative imparting a preparation using the silane-terminated polyether as a base which manifests &ge1 N/mm2 of tear strength and 25-80 of Shore A hardness after processing for 60-240 sec, and having an excellent mixing property of each component and a low viscosity as possible and the cured material has a high elongation at break.SOLUTION: The invention relates to the composition comprising at least a silane-terminated polyether derivatives having (A) 10-98% of polyether group and 1-25% of a terminal group with a structure of -NR1-X-Si(OR2)nR3(3-m), (B1)water and (B2) at least a kind of organic acid or an inorganic acid.COPYRIGHT: (C)2006,JPO&NCIPI【課題】シラン末端のポリエーテル誘導体をベースとして、60~240sの加工時間で硬化後に1N/mm2を上回る引裂抵抗及び25~80のショアA硬度を有し、かつ個々の成分の容易な混合性もしくはできる限り低い粘度並びに硬化した材料の高い破断点伸びを特徴とする調製物を得ることができるシラン末端のポリエーテル誘導体を提供すること【解決手段】(A) 10~98%のポリエーテル基の含有量を有し、かつ1~25%の構造-NR1-X-Si(OR2)mR3(3-m)の末端基の含有量を有する少なくとも1種のシラン末端のポリエーテル誘導体、水及び少なくとも1種の有機酸又は無機酸を含有する組成物【選択図】なし
