Molded article for hydrocarbon adsorption

1. A molded article for hydrocarbon adsorption comprising a metal complex (A), composed of metal ions and organic ligands capable of bonding with the metal ions; and a polymer binder component (B), which contains at least one functional group selected from the group consisting of a carboxyl group, hydroxyl group, amino group, mercapto group, epoxy group and sulfo group at a total of 0.3 mmol/g to 8.0 mmol/g in a molecule thereof.

2. The molded article for hydrocarbon adsorption according to claim 1 , wherein a functional group of the polymer binder component (B) is a hydroxyl group or carboxyl group.

3. The molded article for hydrocarbon adsorption according to claim 1 , wherein the polymer binder component (B) is an ethylenic hydrocarbon polymer, polyester, polyamide or polyether.

4. The molded article for hydrocarbon adsorption according to claim 1 , wherein the polymer binder component (B) is a copolymer of a (meth)acrylic acid ester having 1 to 10 carbon atoms and (meth)acrylic acid.

5. The molded article for hydrocarbon adsorption according to claim 1 , which contains 50% by weight to 97% by weight of the metal complex (A).

6. The molded article for hydrocarbon adsorption according to claim 1 , wherein the organic ligands are at least one organic compound selected from the group consisting of the following (1) to (3):

organic ligand (1): an organic compound having two or more carboxyl groups and/or hydroxyl groups, not having a heterocyclic ring, and capable of bidentate coordination with the metal ions;

organic ligand (2): a saturated or unsaturated, monocyclic or polycyclic heterocyclic compound having a carboxyl group or hydroxyl group, having one heteroatom selected from N, O or S in a ring thereof, and capable of bidentate coordination with the metal ions; and

organic ligand (3): a saturated or unsaturated, monocyclic or polycyclic heterocyclic compound having two or more heteroatoms selected from the group consisting of N, O and S in one or a plurality of rings thereof, and capable of bidentate coordination with the metal ions.

7. The molded article for hydrocarbon adsorption according to claim 6 , wherein the organic ligand (1) is at least one type selected from the group consisting of an alkylene dicarboxylic acid compound having 4 to 20 carbon atoms, an alkenylene dicarboxylic acid compound having 4 to 20 carbon atoms, a dicarboxylic acid compound represented by the following general formulas (I) to (IV), and a hydroxycarboxylic acid compound represented by the following general formula (V):

wherein R 1 respectively and independently represents a hydrogen atom, halogen atom, alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, formyl group, acyloxy group having 1 to 4 carbon atoms, alkoxycarbonyl group having an alkoxy group having 1 to 4 carbon atoms, nitro group, cyano group, carboxyl group, amino group, monoalkylamino group having 1 to 4 carbon atoms, dialkylamino group having an alkyl group having 1 to 4 carbon atoms or acylamino group having 1 to 4 carbon atoms, and two or more of R 1 may condense to form a ring;

wherein R 2 respectively and independently represents a hydrogen atom, halogen atom or alkyl group having 1 to 4 carbon atoms, X represents a hydrogen atom, alkyl group having 1 to 4 carbon atoms, alkenyl group having 2 to 4 carbon atoms, alkynyl group having 2 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, nitro group, carboxyl group, hydroxyl group or amino group; and

wherein R 3 respectively and independently represents a hydrogen atom, alkyl group having 1 to 4 carbon atoms, alkenyl group having 2 to 4 carbon atoms, alkynyl group having 2 to 4 carbon atoms or alkoxy group having 1 to 4 carbon atoms.

8. The molded article for hydrocarbon adsorption according to claim 6 , wherein the organic ligand (2) is at least one type selected from the group consisting of compounds represented by the following general formulas (VI) to (VIII):

wherein R 3 respectively and independently represents a hydrogen atom, alkyl group having 1 to 4 carbon atoms, alkenyl group having 2 to 4 carbon atoms, alkynyl group having 2 to 4 carbon atoms or alkoxy group having 1 to 4 carbon atoms.

9. The molded article for hydrocarbon adsorption according to claim 6 , wherein the organic ligand (3) is at least one type selected from the group consisting of compounds represented by the following general formulas (IX) to (XII):

wherein Y represents an oxygen atom, sulfur atom, —CH 2 —, —CH(OH)—, —CO—, —NH—, —C 2 N 4 —, —C≡C—, —C 2 H 2 — or —C 6 H 4 —, R 4 respectively and independently represents a hydrogen atom, halogen atom, alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, formyl group, acyloxy group having 1 to 4 carbon atoms, alkoxycarbonyl group having an alkoxy group having 1 to 4 carbon atoms, nitro group, cyano group, carboxyl group, amino group, monoalkylamino group having 1 to 4 carbon atoms, dialkylamino group having an alkyl group having 1 to 4 carbon atoms or acylamino group having 1 to 4 carbon atoms, and n is an integer of 0 to 3.

10. The molded article for hydrocarbon adsorption according to claim 1 , wherein the metal ions are a copper ion or zinc ion.

11. The molded article for hydrocarbon adsorption according to claim 1 , wherein the hydrocarbon targeted for adsorption is a hydrocarbon having 2 to 5 carbon atoms.

12. The molded article for hydrocarbon adsorption according to claim 11 , wherein the hydrocarbon having 2 to 5 carbon atoms is 1,3-butadiene.

13. The molded article for hydrocarbon adsorption according to claim 1 , which is produced by a tableting method.

14. A method for producing a molded article for hydrocarbon adsorption, comprising annealing the molded article according to claim 1 obtained by tableting at a temperature equal to or higher than the glass transition temperature (Tg) of the polymer binder (B).