MODIFIED POLYROTAXANE, METHOD FOR PRODUCING THE SAME AND SOLUTION, SOLVENT-TYPE COATING MATERIAL AND SOLVENT-TYPE COATING FILM PRODUCED BY USING THE SAME

摘要

PPROBLEM TO BE SOLVED: To provide a polyrotaxane capable of forming a coating film having excellent scratch resistance and chipping resistance, resistant to cracking, etc., having further improved smoothness and resistant to clouding owing to excellent solvent solubility, and to provide a coating material containing the polyrotaxane and a coating film produced by using the coating material. PSOLUTION: The modified polyrotaxane includes a cyclic molecule having two or more kinds of lactone-originated modification groups, a straight-chain molecule passing through the hollow part of the cyclic molecule and blocking groups attached to both terminals of the straight-chain molecule to prevent falling out of the cyclic molecule. PCOPYRIGHT: (C)2011,JPO&INPIT