Patent ID: 11857949
Assignee: RESONAC CORPORATION
Field: Measurement (Instruments)
Classification: CPC B  C  G | IPC B  G

Claim 7:
8. A method for producing the packing material according to claim 1, the method comprising the following steps (A) to (D):
a step (A) of polymerizing a raw material monomer comprising glycidyl methacrylate and a polyfunctional monomer in the presence of a diluent and a polymerization initiator to obtain a carrier α, which is a porous organic polymer carrier,
a step (B) of reacting a glycidyl group derived from glycidyl methacrylate of the carrier α with one hydroxyl group of a diol compound comprising a linear or aliphatic ring-containing alkylene group having 4 to 9 carbon atoms in a structure thereof to obtain a carrier β to which an end of the diol compound comprising the alkylene group in the structure thereof is bonded;
a step (C) of reacting an other hydroxyl group of the diol compound comprising the alkylene group in the structure thereof bonded to the carrier β with epichlorohydrin to obtain a carrier γ in which a glycidyl group is introduced into the carrier β; and
a step (D) of reacting the glycidyl group of the carrier γ with a hydroxyl group of a polyol in the presence of water to obtain a carrier δ to which any one end of the polyol is bonded as an ether bond.