Crosslinking agent for water-absorbing resin and water-absorbing material obtained with the same
AssigneeNagase Chemtex Corporation
InventorsSatoru Fujii, Yoshiyuki Morita, Tetsuya Hosomi, Nobuaki Aoki
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Abstract
A crosslinking agent for water-absorbing resins which comprises (A) at least one halohydrin compound selected between (A1) a first halohydrin compound having per molecule at least two halohydrin groups (D) represented by the general formula (I), wherein R1 represents hydrogen or alkyl and X represents chlorine or bromine and (A2) a second halohydrin compound having per molecule at least two halohydrin groups (D) represented by the formula (I) and having per molecule at least one ammonium group (M) represented by the general formula (II), wherein R2's each independently represents a C1-4 hydrocarbon group or benzyl.
Claims11
A crosslinking agent for use in the crosslinking of water absorbing resin particles which comprises at least one halohydrin compound (A) selected from the group consisting of:
- (A1) a first halohydrin compound (A1) which has in the molecule at least two halohydrin groups D having the general formula (I)
- wherein R1 is a hydrogen atom or an alkyl group, and X is chlorine atom or bromine atom;
- and
- (A2) a second halohydrin compound (A2) which has in the molecule at least two said halohydrin groups D and at least one ammonium group M having the general formula (II)
- wherein R2 is independently a hydrocarbon group of 1-4 carbon atoms or a benzyl group.
Dependencies are inferred from the claim text.