Patent ID: 6437072
Filing Date: 2002-08-20
Classification: C08G,C08L

Abstract:
A curable composition which comprises(A) a reactive silicon group-containing polyether polymer and at least one species selected from the following (B) and (C): (B) a hydrolyzable silicon compound having a hydrolyzable group bound to a silicon atom, said hydrolyzable group being more reactive with H2O than the silicon group in the above reactive silicon group-containing polyether polymer and (C) an amino group-containing alkoxysilane or amino-substituted alkoxysilane derivative compound, said (A) reactive silicon group-containing polyether polymer having a partial structure of the general formula (1) per molecule: â€”Oâ€”R1â€”CH(CH3)â€”CH2â€”(Si(R22âˆ’b)(Xb)O)mSi (R33âˆ’a)Xaâ€ƒâ€ƒ(1) wherein R1 represents a divalent organic group containing 1 to 20 carbon atoms and one or more constituent atoms selected from the group consisting of hydrogen, oxygen and nitrogen; R2 and R3 may be the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, an aryl group containing 6 to 20 carbon atoms, an aralkyl group containing 7 to 20 carbon atoms or a triorganosiloxy group of the formula (Râ€²)3SiOâ€”; when 2 or more R2 or R3 groups are present, they may be the same or different, Râ€² represents a monovalent hydrocarbon group containing 1 to 20 carbon atoms and three Râ€² groups may be the same or different; X represents a hydroxyl group or a hydrolyzable group and when two or more X groups are present, they may be the same or different; a represents 0, 1, 2 or 3; b represents 0, 1 or 2; b may be the same or different over m repeats of (Si(R22âˆ’b)(Xb)O); m represents an integer of 0 to 19; provided that the relation of a+b&gE;1 is satisfied.