Patent ID: 8357261

Claim:
A method of bonding materials, said method comprising applying an adhesive for bonding said materials, followed by curing the adhesive, wherein the adhesive comprises a polysilsesquioxane compound having a ladder structure and including a repeating unit shown by the following formula (I) in the molecule: wherein A represents a single bond or a linking group, R 1 represents a hydrogen atom or an alkyl group having, 1 to 6 carbon atoms, X 0 represents a halogen atom, a group shown by OG (wherein G represents a protecting group for a hydroxyl group), or a cyano group, R 2 represents a substituted or unsubstituted phenyl group, or an alkyl group having 1 to 20 carbon atoms, l, m, and n are individually 0 or an arbitrary natural number, provided that l and n are not 0 at the same time. A and A, X 0 and X 0 , R 1 and R 1 , R 2 and R 2 may be either the same or different from each other, and, when l, m, and n are 2 or more, the repeating units shown by the following formulas (i), (ii), and (iii) may be either the same or different from each other,