Self-healing composite of thermoset polymer and programmed super contraction fibers
US-9428647-B2 · Aug 30, 2016 · US
Self-healing composite of thermoset polymer and programmed super contraction fibers
US10696591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10696591-B2 |
| Application number | US-201916353087-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2019 |
| Priority date | Apr 9, 2013 |
| Publication date | Jun 30, 2020 |
| Grant date | Jun 30, 2020 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A composition comprising thermoset polymer, shape memory polymer to facilitate macro scale damage closure, and a component for molecular scale healing has the ability to repair structural defects by a bio-mimetic, close-then-heal process. The shape memory polymer serves to bring surfaces of a structural defect into proximity, after which the healing component moves into the defect and provides molecular scale healing. The component for molecular scale healing can be a thermoplastic, such as fibers, particles or spheres, which are heated to or above the thermoplastic's melting point, and then the composition is cooled below that melting temperature. The compositions can not only close macroscopic defects, but they can also do so repeatedly even if damage recurs in a previously healed/repaired area.
First claim
Opening claim text (preview).
What is claimed: 1. A composite comprising: a matrix of thermoset polymer; a programmed fibrous shape memory polymer which comprises the ability to contract when heated above its shape recovery temperature; and thermoplastic polymer for healing at a molecular scale, wherein said thermoplastic polymer is dispersed throughout said matrix; wherein said composite comprises a sandwich structure.
Assignees
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Classifications
- C08G18/4238Primary
derived from dicarboxylic acids and dialcohols · CPC title
rigid · CPC title
Stretch-spinning methods ({D01D5/098 takes precedence} finishing by stretching D02J1/22) · CPC title
Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step · CPC title
Compositions for creating shape memory · CPC title
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- What does patent US10696591B2 cover?
- A composition comprising thermoset polymer, shape memory polymer to facilitate macro scale damage closure, and a component for molecular scale healing has the ability to repair structural defects by a bio-mimetic, close-then-heal process. The shape memory polymer serves to bring surfaces of a structural defect into proximity, after which the healing component moves into the defect and provides …
- Who is the assignee on this patent?
- Li Guoqiang, Meng Harper, Univ Louisiana State
- What technology area does this patent fall under?
- Primary CPC classification C08G18/4238. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 30 2020 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).