Patent ID: 8889557

Claim:
A substrate treating method comprising, in the sequence set forth: a step 1 of temporarily fixing a substrate onto a support via a temporary fixing material to form a stack, the temporary fixing material comprising at least a temporary fixing material (I) comprising a cycloolefin polymer (A) and a compound (B) having at least one structure (b1) selected from diaryl silicone structures, dialkyl silicone structures, fluorinated alkyl structures, fluorinated alkenyl structures and C 8 or higher alkyl structures, and at least one structure (b2) selected from polyoxyalkylene structures, phosphoric group-containing structures and sulfo group-containing structures, a step 2 of processing the substrate and/or transporting the stack, and a step 3 of applying a force to the substrate or the support in a direction substantially perpendicular to the plane of substrate to separate the substrate from the support.