Curing agent composition for curing 2-methylene-1,3-dicarbonyl compound

Patent metadata

Field	Value
Publication number	US-12146014-B2
Application number	US-201917283540-A
Country	US
Kind code	B2
Filing date	Oct 8, 2019
Priority date	Oct 9, 2018
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A curing agent composition is capable of curing a base resin containing a 2-methylene-1,3-dicarbonyl compound. The curing agent composition contains a specific 2-methylene-1,3-dicarbonyl compound and an initiator. A two-part mixing adhesive contains the curing agent composition and a base resin containing another specific 2-methylene-1,3-dicarbonyl compound.

First claim

What is claimed is:

1. A two-part mixing adhesive kit, wherein:
(i) a first part of the two-part mixing adhesive kit includes a curing agent composition comprising:
(a) an initiator comprising at least one basic substance, and
(b1) at least one first 2-methylene-1,3-dicarbonyl compound having a molecular weight of 180 or higher and 10,000 or lower, the first 2-methylene-1,3-dicarbonyl compound comprising at least one structural unit represented by formula (I), and

(ii) a second part of the two-part mixing adhesive kit includes a base resin comprising (b2) at least one second 2-methylene-1,3-dicarbonyl compound, the second 2-methylene-1,3-dicarbonyl compound comprising at least one structural unit represented by formula (I), and
wherein formula (I) is

2. The two-part mixing adhesive kit according to claim 1 , wherein the component (a) has a pK a of 8.0 or higher.

3. The two-part mixing adhesive kit according to claim 1 , wherein the component (a) is an amine compound.

4. The two-part mixing adhesive kit according to claim 1 , wherein the component (a) is a tertiary amine compound.

5. The two-part mixing adhesive kit according to claim 1 , wherein the component (a) is at least one tertiary amine compound represented by the formula NRR′R″, wherein R and R′ are each, independently, a methyl group or an ethyl group, and R″ is a monovalent hydrocarbon group having two or more carbon atoms.

6. The two-part mixing adhesive kit according to claim 1 , wherein the curing agent composition has a viscosity of 1,000 Pa·s or lower upon being maintained at 25° C. for 12 hours.

7. The two-part mixing adhesive kit according to claim 1 , wherein the component (b2) comprises at least one 2-methylene-1,3-dicarbonyl compound that is different from any 2-methylene-1,3-dicarbonyl compound in the component (b1).

8. A method for curing a base resin, comprising:
bringing the base resin into contact with a curing agent composition,
wherein the curing agent composition comprises: (a) an initiator comprising at least one basic substance, and (b1) at least one first 2-methylene-1,3-dicarbonyl compound having a molecular weight of 180 or higher and 10,000 or lower, the first 2-methylene-1,3-dicarbonyl compound comprising at least one structural unit represented by formula (I),
wherein the base resin comprises (b2) at least one second 2-methylene-1,3-dicarbonyl compound, the second 2-methylene-1,3-dicarbonyl compound comprising at least one structural unit represented by formula (I), and
wherein formula (i) is

9. The method according to claim 8 , wherein the component (a) has a pK a of 8.0 or higher.

10. The method according to claim 8 , wherein the component (a) is an amine compound.

11. The method according to claim 8 , wherein the component (a) is a tertiary amine compound.

12. The method according to claim 8 , wherein the component (a) is at least one tertiary amine compound represented by the formula NRR′R″, wherein R and R′ are each, independently, a methyl group or an ethyl group, and R″ is a monovalent hydrocarbon group having two or more carbon atoms.

13. The method according to claim 8 , wherein the curing agent composition has a viscosity of 1,000 Pa·s or lower upon being maintained at 25° C. for 12 hours.

14. The method according to claim 8 , wherein the component (b2) comprises at least one 2-methylene-1,3-dicarbonyl compound that is different from any 2-methylene-1,3-dicarbonyl compound in the component (b1).

Assignees

• Namics Corp

Inventors

• Arai Fuminori

Classifications

• H10W74/473

  containing a filler · CPC title

• H10W74/01

  Manufacture or treatment · CPC title

• C08K5/17

  Amines; Quaternary ammonium compounds · CPC title

• C08F2/44

  Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers · CPC title

• C09J4/00

  Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16} · CPC title