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Curable compositions containing cyclic diamine and cured products therefrom
US8980979B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980979-B2 |
| Application number | US-201013254180-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 16, 2010 |
| Priority date | Mar 17, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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A curable composition including (a) at least one cyclic diamine, (b) at least one non-heterocyclic amine that has a pKa value of approximately 9.5 to about 12 at 25° C. for the most basic amine group in the non-heterocyclic amine molecule, (c) at least one epoxy resin, and (d) at least one alkylated phenol; (i) wherein the equivalents of the amine hydrogens from the cyclic diamine compared to the total amine hydrogens from both the cyclic diamine and the non-heterocyclic amine in the composition are greater than about 5%; (ii) wherein the ratio of the equivalents of the total amine hydrogens in the composition to the equivalents of the total epoxies in the composition is greater than or equal to about 1; and (iii) wherein the alkylated phenol is in an amount greater than about 10 wt % of the curable composition.
First claim
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What is claimed is: 1. A curable composition comprising (a) at least one cyclic diamine, wherein the at least one cyclic diamine comprises piperazine, homo-piperazine or mixtures thereof; (b) at least one non-heterocyclic amine that has a pKa value of 10.74 to about 12 at 25° C. for the most basic amine group in the non-heterocyclic amine molecule, (c) at least one epoxy resin, and (d) at least one alkylated phenol; (i) wherein the equivalents of the amine hydrogens from the pipera…
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- What does patent US8980979B2 cover?
- A curable composition including (a) at least one cyclic diamine, (b) at least one non-heterocyclic amine that has a pKa value of approximately 9.5 to about 12 at 25° C. for the most basic amine group in the non-heterocyclic amine molecule, (c) at least one epoxy resin, and (d) at least one alkylated phenol; (i) wherein the equivalents of the amine hydrogens from the cyclic diamine compared to t…
- Who is the assignee on this patent?
- Dettloff Marvin L, Lowrey James R, Naik Hemant A, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C08G59/56. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).