Resist underlayer film-forming composition
US-2025376549-A1 · Dec 11, 2025 · US
Microporous polyolefin-based aerogels
US9469739B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9469739-B2 |
| Application number | US-201414549946-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 21, 2014 |
| Priority date | Apr 7, 2005 |
| Publication date | Oct 18, 2016 |
| Grant date | Oct 18, 2016 |
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Abstract
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Microporous polyolefin and microporous polydicyclopentadiene (polyDCPD) based aerogels and methods for preparing and using the same are provided. The aerogels are produced by forming a polymer gel structure within a solvent from a olefin or dicyclopentadiene monomer via Ring Opening Metathesis Polymerization (ROMP) reactions, followed by supercritical drying to remove the solvent from the aerogel. Other aerogels are prepared by sequentially (1) mixing at least one dicyclopentadiene monomer, at least one solvent at least one catalyst and at least one inorganic and/or organic reinforcing material, (2) gelling the mixture, (3) aging, and (4) supercritical drying. Aerogels provided herein are inexpensive to prepare, possess desirable thermal, mechanical, acoustic, chemical, and physical properties and are hydrophobic. The aerogels provided herein are suitable for use in various applications, including but not limited to thermal and acoustic insulation, radiation shielding, and vibrational damping applications.
First claim
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The invention claimed is: 1. A porous polydicyclopentadiene based aerogel material comprising a polydicyclopentadiene polymer; wherein the porous polydicyclopentadiene based aerogel material has a density from 0.01 g/cm 3 to about 0.6 g/cm 3 . 2. The material of claim 1 , wherein the polydicyclopentadiene polymer comprises at least one polydicyclopentadiene monomeric unit represented by Formula I:…
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- What does patent US9469739B2 cover?
- Microporous polyolefin and microporous polydicyclopentadiene (polyDCPD) based aerogels and methods for preparing and using the same are provided. The aerogels are produced by forming a polymer gel structure within a solvent from a olefin or dicyclopentadiene monomer via Ring Opening Metathesis Polymerization (ROMP) reactions, followed by supercritical drying to remove the solvent from the aerog…
- Who is the assignee on this patent?
- Aspen Aerogels Inc
- What technology area does this patent fall under?
- Primary CPC classification C08F34/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 18 2016 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).