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Caprolactam-based composition, process for manufacturing an impermeable element, and tank
US8987409B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8987409-B2 |
| Application number | US-201414152711-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2014 |
| Priority date | Nov 24, 2005 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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- Title
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Abstract
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The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The composition of the invention comprises in % by weight relative to the total weight of the composition: from 70 to 90% of a monomer (I); from 0.1 to 1% of an activator (II), in which R is chosen from the group comprising C n H 2n+2 , n being an integer chosen from 1 to 10; —OH; —OC n H 2n+2 , n being an integer chosen from 1 to 10; and —NHR′ where R′ is either C n H 2n+2 , n being an integer chosen from 1 to 10, or an amine functional group; from 2 to 6% of a catalyst (III), in which X is chosen from the group comprising MgBr, MgI, Li and Na; and from 10 to 20% of an additive (IV), with: This composition can be used, for example, to manufacture elements that are impermeable to fluids, for example impermeable envelopes, for example that can be used in the manufacture of type IV tanks or hydraulic accumulators.
First claim
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What is claimed is: 1. A process of manufacturing an impermeable element comprising the following steps: (a) providing a composition comprising in % by weight relative to the total weight of the composition: from 70 to 90% of an ε-caprolactam monomer of formula (I); from 0.1 to 1% of an ε-caprolactam activator of formula (II), in which R is selected from the group consisting of C n H 2n+1 , n being an integer chosen from 1 to 10; —OH; —OC n H 2n+1 , n being an integer chosen fr…
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Electricity · mapped topic
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8987409B2 cover?
- The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The composition of the invention comprises in % by weight relative to the total weight of the composition: from 70 to 90% of a monomer (I); from 0.1 to 1% of an activator (II), in which R is chosen from the…
- Who is the assignee on this patent?
- Mazabraud Philippe, Chauvot Elodie, Delnaud Laurent, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C08G69/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 24 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).