Methods for manufacturing block copolymers and articles manufactured therefrom
US-2015376454-A1 · Dec 31, 2015 · US
Mechanoresponsive healing polymers
US9908962B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9908962-B2 |
| Application number | US-201414329528-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2014 |
| Priority date | Jul 11, 2014 |
| Publication date | Mar 6, 2018 |
| Grant date | Mar 6, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Methods are provided to produce new mechanoresponsive healing systems. Additionally, various embodiments provide a two tier self-healing material system concept that provides a non-intrusive method to mitigate impact damage in a structure ranging from low velocity impact damage (e.g., crack damage) to high velocity impact damage (e.g., ballistic damage.) The various embodiments provide the mechanophore linked polymer PBG-BCB-PBG. The various embodiments provide methods for synthesizing PBG-BCB-PBG.
First claim
Opening claim text (preview).
What is claimed is: 1. A PBG-BCB-PBG polymer comprising: two polybutadiene-graft-poly(methyl acrylate-co-acrylonitrile) polymer (PBG) molecules bonded to a cis-1,2-bis(α-bromopropionyl)-1,2-dihydroxbenzocyclobutene (BCB) molecule to form the PBG-BCB-PBG polymer; wherein the PBG-BCB-PBG polymer is a self-healing mechanophore linked polymer. 2. The polymer of claim 1 , wherein the PBG-BCB-PBG polymer comprises: 3. The polymer of claim 1 , wherein the PBG-BCB-PBG polymer comprises: wherein 15 mol %≦x≦25 mol %, 75 mol %≦y≦85 mol %, and 5 mol %≦z≦15 mol %. 4. The polymer of claim 1 , wherein the PBG-BCB-PBG polymer comprises: wherein 5 mol %≦x≦15 mol %, 15 mol %≦y≦25 mol %, and 75 mol %≦z≦85 mol %. 5. The polymer of claim 1 , wherein the PBG-BCB-PBG polymer comprises: wherein 5 mol %≦x≦15 mol %, 15 mol %≦y≦25 mol %, and 75 mol %≦z≦85 mol %.
Assignees
Inventors
Classifications
on to polymers of olefins having four or more carbon atoms · CPC title
Incorporating silicon atoms into the molecule · CPC title
Incorporating sulfur atoms into the molecule · CPC title
- C08F293/00Primary
Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule (on to polymers modified by introduction of unsaturated end groups C08F290/02) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9908962B2 cover?
- Methods are provided to produce new mechanoresponsive healing systems. Additionally, various embodiments provide a two tier self-healing material system concept that provides a non-intrusive method to mitigate impact damage in a structure ranging from low velocity impact damage (e.g., crack damage) to high velocity impact damage (e.g., ballistic damage.) The various embodiments provide the mech…
- Who is the assignee on this patent?
- The United States Of America Represented By The Administrator Of The Nat Aeronautics And Space Admin, Nasa
- What technology area does this patent fall under?
- Primary CPC classification C08F293/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 06 2018 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).