To obtain a new polysilsesquioxane graft polymer which can be used as an adhesive having both heat resistance and cohesive power, to provide a production method therefor, and to prepare an adhesive and an adhesive sheet each using the polymer.
The polysilsesquioxane graft polymer having repeating units represented by formula (1) [A is a bonding group; R1 is a hydrocarbon group which may have a substituent; R2 is H or a 1 to 18C alkyl; R3 is a polar group or an aryl group which may have a substituent; R4 is H, a 1 to 6C alkyl, an ester group or an acyl group; k1, k2, and k3 are each independently an arbitrary natural number, or k1, k2, and k3 may be identical to or different from a group represented by the formula: -CH2-C(R2)(R3)-, when k1, k2, and k3 are each two or more; (l), (m) and (n) are each independently 0 or an arbitrary natural number, provided that a case of (m)=(n)=0 is excluded].
COPYRIGHT: (C)2005,JPO&NCIPI
Mikihiro Kashio
Kimura Atsuko
Moriya Osamu
| JP8199143A | ||||
| JP3088815A |
| WO2003004549A1 |