Rapid curing epoxy repair composition and use thereof
US-2024360306-A1 · Oct 31, 2024 · US
Two-part liquid shim compositions
US10233280B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10233280-B2 |
| Application number | US-201615335876-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 27, 2016 |
| Priority date | Feb 9, 2009 |
| Publication date | Mar 19, 2019 |
| Grant date | Mar 19, 2019 |
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- Title
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Abstract
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Epoxy curatives and two-part compositions comprising epoxy curative and epoxy resin parts are provided as well as methods of their use in liquid shim applications. Epoxy curatives comprise at least one cycloaliphatic polyamine curative and at least one second curative selected from a) an aliphatic polyamidoamine and b) an adduct of an excess of an unbranched polyetherdiamine with an epoxy resin.
First claim
Opening claim text (preview).
I claim: 1. A method of filling a gap comprising the steps of: a) mixing an epoxy component comprising a core-shell impact modifier based on butadiene rubber and an epoxy novolac resin with an epoxy curative to make a mixture, wherein the epoxy curative comprises at least one cycloaliphatic polyamine curative and at least one second curative comprising an adduct of between 2 and 8 molar parts of 4,7,10-trioxatridecane 1,13-diamine or 4,7-dioxadecane 1,10-diamine per molar part of an epoxy novolac resin; b) filling the gap with the mixture; and c) allowing the mixture to cure. 2. The method of claim 1 , wherein the epoxy curative additionally comprises at least one calcium nitrate accelerator. 3. The method of claim 1 , wherein the epoxy curative comprises no particulate metal. 4. The composition obtained by mixing and allowing to cure: a) an epoxy component comprising a core-shell impact modifier based on butadiene rubber and an epoxy novolac resin and b) an epoxy curative comprising at least one cycloaliphatic polyamine curative and at least one second curative comprising an adduct of between 2 and 8 molar parts of 4,7,10-trioxatridecane 1,13-diamine or 4,7-dioxadecane 1,10-diamine per molar part of an epoxy novolac resin.
Assignees
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Classifications
containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen · CPC title
Amino amides> · CPC title
with amides · CPC title
Inserts · CPC title
- C08G59/56Primary
together with other curing agents · CPC title
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- What does patent US10233280B2 cover?
- Epoxy curatives and two-part compositions comprising epoxy curative and epoxy resin parts are provided as well as methods of their use in liquid shim applications. Epoxy curatives comprise at least one cycloaliphatic polyamine curative and at least one second curative selected from a) an aliphatic polyamidoamine and b) an adduct of an excess of an unbranched polyetherdiamine with an epoxy resin.
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- 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 19 2019 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).