Patent ID: 11958921
Assignee: NIPPON SHOKUBAI CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 2:
3. The poly(meth)acrylic acid (salt)-based particulate water-absorbing agent according to claim 1, wherein
one or more compounds selected from a nonionic substance, an amphoteric substance, an anionic substance, and a cationic substance are contained in the inside and/or the surface of the water-absorbing agent,
the nonionic substance is (a) a polyol, (b) a hydroxy group-modified product of a polyol, (c) side-chain and/or terminal polyether-modified polysiloxane, or (d) an alkylene oxide adduct of higher aliphatic amine,
the amphoteric substance is (e) alkylaminobetaine or (f) alkylamine oxide,
the anionic substance is (g) a sulfuric acid ester salt of a higher alcohol alkylene oxide adduct or (h) alkyl diphenyl ether disulfonate, and
the cationic substance is (i) an ammonium salt.