Composition, production method for molded object, and molded object

Patent metadata

Field	Value
Publication number	US-12031014-B2
Application number	US-201816640202-A
Country	US
Kind code	B2
Filing date	Aug 22, 2018
Priority date	Aug 22, 2017
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

A composition comprising: a substance (A) comprising at least one metal atom selected from the group consisting of zinc, cobalt, niobium, zirconium, cadmium, copper, nickel, chromium, vanadium, titanium, molybdenum, magnesium, iron and aluminum, with the proviso that a metal organic framework is excluded; an organic substance (B) having at least two metal coordination sites capable of being coordinated to the metal atom to form a crystal, wherein the metal coordination sites are of at least one type selected from the group consisting of a carboxy group and a metal organic framework; and a coordination promoter (C) that undergoes a reaction or a phase transition upon stimulation to promote the coordination of the metal coordination sites of the organic substance (B) to the metal atom of the substance (A).

First claim

The invention claimed is:

1. A composition comprising:
a substance (A) comprising at least one metal atom selected from the group consisting of zinc, cobalt, niobium, zirconium, cadmium, copper, nickel, chromium, vanadium, titanium, molybdenum, magnesium, iron and aluminum, with the proviso that a metal organic framework is excluded;
an organic substance (B) having at least two metal coordination sites capable of being coordinated to the metal atom to form a crystal of a metal organic framework, wherein the metal coordination sites are of at least one type selected from the group consisting of a carboxy group and a metal organic framework; and
a coordination promoter (C) that undergoes a reaction or a phase transition upon stimulation to promote the coordination of the metal coordination sites of the organic substance (B) to the metal atom of the substance (A),
wherein the coordination promoter (C) is at least one selected from the group consisting of dicyandiamide, a tertiary amine that is crystalline at room temperature, a combination of calcium oxide and pyridine, and a combination of iron and pyridine.

2. The composition according to claim 1 , wherein the stimulation is at least one selected from the group consisting of heat, light, water, and oxygen.

3. The composition according to claim 1 , wherein the coordination promoter (C) is solid at 25° C. and has a pKa of 1 to 20.

4. The composition according to claim 1 , wherein a crystal in which the metal coordination sites of the organic substance (B) are coordinated to the metal atom of the substance (A) is present in an amount of 50% by mass or less.

5. The composition according to claim 1 , wherein a crystal in which the metal coordination sites of the organic substance (B) are coordinated to the metal atom of the substance (A) is present in an amount of 10% by mass or less.

6. The composition according to claim 1 , wherein a crystal in which the metal coordination sites of the organic substance (B) are coordinated to the metal atom of the substance (A) is present in an amount of 1% by mass or less.

7. The composition according to claim 1 , wherein the organic substance (B) has an aromatic ring having one or more of the metal coordination sites.

8. The composition according to claim 1 , wherein the organic substance (B) has an aromatic ring having two or more of the metal coordination sites.

9. The composition according to claim 8 , wherein the metal coordination sites are carboxy groups.

10. The composition according to claim 1 , wherein the organic substance (B) has a molecular weight of 100 or more.

11. The composition according to claim 1 , wherein the organic substance (B) is a polymer having a main chain and a pendant structure bonded to the main chain, wherein the pendant structure comprises the metal coordination sites.

12. The composition according to claim 11 , wherein the main chain comprises at least one structure selected from the group consisting of a polyether structure, a polyolefin structure, a polyester structure, a polythiol structure, and a polyamide structure.

13. The composition according to claim 1 , wherein the substance (A) is at least one substance selected from the group consisting of a simple metal and a metal compound having a valence of 1 to 5.

14. The composition according to claim 1 , which further comprises at least one organic substance (D) selected from the group consisting of a polymer having a constitutional unit having one metal coordination site capable of being coordinated to the metal atom to form a crystal, a monomer having one metal coordination site defined above, and an organic substance having no metal coordination site defined above.

15. The composition according to claim 1 , which further comprises a liquid medium (E).

16. The composition according to claim 15 , wherein the amount of the liquid medium (E) is 99% by mass or less.

17. The composition according to claim 15 , which further comprises a resin (F) capable of holding the liquid medium (E).

18. A shaped product comprising:
a crystal of metal organic framework in which metal coordination sites of an organic substance (B) are coordinated to a metal atom of a substance (A), wherein the organic substance (B) has at least two metal coordination sites which are of at least one type selected from the group consisting of a carboxy group and a metal organic framework, and the substance (A) comprises at least one metal atom selected from the group consisting of zinc, cobalt, niobium, zirconium, cadmium, copper, nickel, chromium, vanadium, titanium, molybdenum, magnesium, iron and aluminum, with the proviso that an metal organic framework is excluded; and
a coordination promoter (C) that undergoes a reaction or a phase transition upon stimulation to promote the coordination of the metal coordination sites of the organic substance (B) to the metal atom of the substance (A),
wherein the coordination promoter (C) is at least one selected from the group consisting of dicyandiamide, a tertiary amine that is crystalline at room temperature, a combination of calcium oxide and pyridine, and a combination of iron and pyridine.

19. A method for producing a shaped product, comprising:
shaping the composition according to claim 1 to obtain a shaped product (Y); and
applying a stimulus to the shaped product (Y) to form a crystal in which the metal coordination sites of the organic substance (B) are coordinated to the metal atom of the substance (A) to thereby obtain a shaped product (Z) containing the crystal.

20. The method according to claim 19 , wherein the stimulus is at least one selected from the group consisting of heat, light, water, and oxygen.

21. The method according to claim 19 , wherein the amount of the crystal in the shaped product (Y) is 99% by mass or less.

22. The method according to claim 19 , wherein the shaped product (Z) is obtained such that the amount of the crystal in the shaped product (Z) is 0.1% by mass or more.

23. A method for producing a shaped product, comprising: applying a stimulus to the composition of claim 1 while shaping the composition, so as to form a crystal in which the metal coordination sites of the organic substance (B) are coordinated to the metal atom of the substance (A) to thereby obtain a shaped product (Z) containing the crystal.

Assignees

• Sekisui Chemical Co Ltd

Inventors

• Ikoma Atsushi
• Nomura Shigeki
• Dasanayake Aluthge Rasika

Classifications

• B32B3/00

  Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form · CPC title

• B27N3/00

  Manufacture of substantially flat articles, e.g. boards, from particles or fibres · CPC title

• C08K5/10

  Esters; Ether-esters · CPC title

• C08K5/09

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title

• C07F3/06

  Zinc compounds · CPC title