Epoxy Liquid Curing Agent Compositions
US-2015094400-A1 · Apr 2, 2015 · US
Curing agent for epoxy resins, and epoxy resin composition obtained using same
US2018327629A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018327629-A1 |
| Application number | US-201515527874-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 12, 2015 |
| Priority date | Dec 3, 2014 |
| Publication date | Nov 15, 2018 |
| Grant date | — |
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Abstract
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Provided are a curing agent for epoxy resins, which is a curing agent capable of curing an epoxy resin at room temperature, and which can form a cured product (cured coating film) having excellent adhesion even to a substrate which is not in an environment completely dried, and an epoxy resin composition obtained using the same. A curing agent for epoxy resins, containing (a1) an aromatic amine, (a2) an aliphatic amine having an aromatic ring or a cycloalkane ring, and (a3) a curing accelerator, and an epoxy resin composition containing the curing agent and an epoxy resin.
First claim
Opening claim text (preview).
1 . A curing agent for epoxy resins, comprising (a1) an aromatic amine, (a2) an aliphatic amine having an aromatic ring or a cycloalkane ring, (a3) a curing accelerator, and an xylene resin. 2 . The curing agent for epoxy resins according to claim 1 , wherein the aromatic amine (a1) is diaminodiphenylmethane, diethyltoluenediamine, or a modification product thereof. 3 . The curing agent for epoxy resins according to claim 1 , wherein the curing accelerator (a3) is a phenol or a modification product thereof, an aromatic carboxylic acid, or an imidazole. 4 . The curing agent for epoxy resins according to claim 1 , wherein the aliphatic amine (a2) having an aromatic ring or a cycloalkane ring is benzylethylenediamine, benzylamine, or metaxylenediamine. 5 . The curing agent for epoxy resins according to claim 1 , wherein the ratio of the aromatic amine (a1) and aliphatic amine (a2) used, in terms of a mass ratio represented by (a1)/(a2), is in the range of from 10/90 to 90/10. 6 . An epoxy resin composition, comprising (A) the curing agent for epoxy resins according to claim 1 , and (B) a liquid epoxy resin. 7 . The epoxy resin composition according to claim 6 , wherein the liquid epoxy resin (B) contains (b1) a bisphenol epoxy resin, and at least one of (b2) a polyhydric alcohol glycidyl ether and (b3) an aliphatic carboxylic acid glycidyl ester. 8 . The epoxy resin composition according to claim 7 , wherein the polyhydric alcohol glycidyl ether (b2) is 1,6-hexanediol diglycidyl ether. 9 . The epoxy resin composition according to claim 6 , further comprising (c) a reactive functional group-containing silane coupling agent. 10 . The epoxy resin composition according to claim 6 , which is a primer for concrete, a jointing material for concrete, or a repair material for concrete. 11 - 13 (canceled) 14 . An epoxy resin composition, comprising (A) the curing agent for epoxy resins according to claim 2 , and (B) a liquid epoxy resin. 15 . An epoxy resin composition, comprising (A) the curing agent for epoxy resins according to claim 3 , and (B) a liquid epoxy resin. 16 . An epoxy resin composition, comprising (A) the curing agent for epoxy resins according to claim 4 , and (B) a liquid epoxy resin. 17 . An epoxy resin composition, comprising (A) the curing agent for epoxy resins according to claim 5 , and (B) a liquid epoxy resin.
Assignees
Inventors
Classifications
- C09D163/00Primary
Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins · CPC title
aromatic · CPC title
Epoxides · CPC title
aromatic · CPC title
Mixtures of di-epoxy compounds · CPC title
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- What does patent US2018327629A1 cover?
- Provided are a curing agent for epoxy resins, which is a curing agent capable of curing an epoxy resin at room temperature, and which can form a cured product (cured coating film) having excellent adhesion even to a substrate which is not in an environment completely dried, and an epoxy resin composition obtained using the same. A curing agent for epoxy resins, containing (a1) an aromatic amine…
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C09D163/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 15 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).