Resilient wave-shaped energy-generating device
US-2019379300-A1 · Dec 12, 2019 · US
Nanofiber web piezoelectric material obtained by electrospinning polylactic acid, method of producing same, piezoelectric sensor comprising same, and method of manufacturing the piezoelectric sensor
US2018240959A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018240959-A1 |
| Application number | US-201815957921-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 20, 2018 |
| Priority date | Dec 30, 2014 |
| Publication date | Aug 23, 2018 |
| Grant date | — |
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.
A method of producing a piezoelectric nanofiber web, includes: dissolving polylactic acid in a solvent, thus preparing a spinning solution; and electrospinning the spinning solution, yielding a nanofiber web, wherein at least 80% of a monomer for the polylactic acid comprises an L-isomer or a D-isomer, and wherein the solvent is a mixture comprising chloroform and one of N,N-dimethylacetamide(DMAc), N,N-dimethylformamide(DMF) and dimethylsulfoxide(DMSO).
First claim
Opening claim text (preview).
What is claimed is: 1 . A method of producing a piezoelectric nanofiber web, comprising: dissolving polylactic acid in a solvent, thus preparing a spinning solution; and electrospinning the spinning solution, yielding a nanofiber web. 2 . The method of claim 1 , wherein at least 80% of a monomer for the polylactic acid comprises an L-isomer or a D-isomer. 3 . The method of claim 1 , wherein the solvent is a mixture comprising chloroform and one of N,N-dimethylacetamide(DMAc), N,N-dimethylformamide(DMF) and dimethylsulfoxide(DMSO). 4 . The method of claim 3 , wherein the mixture comprises chloroform and one of N,N-dimethylacetamide(DMAc), N,N-dimethylformamide(DMF) and dimethylsulfoxide(DMSO) mixed at a volume ratio of 2:1 to 4:1. 5 . The method of claim 4 , wherein the spinning solution is prepared by dissolving 5 to 20 wt % of polylactic acid in the solvent.
Assignees
Inventors
Classifications
Condensation or reaction polymers · CPC title
Operations & Transport · mapped topic
Use of inorganic materials not provided for in groups {B29K2503/00 - B29K2507/00,} as filler · CPC title
Operations & Transport · mapped topic
Medical equipment; Accessories therefor (bloodbags, medical bags B29L2031/7148; artificial eyes B29L2011/0008) · 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 US2018240959A1 cover?
- A method of producing a piezoelectric nanofiber web, includes: dissolving polylactic acid in a solvent, thus preparing a spinning solution; and electrospinning the spinning solution, yielding a nanofiber web, wherein at least 80% of a monomer for the polylactic acid comprises an L-isomer or a D-isomer, and wherein the solvent is a mixture comprising chloroform and one of N,N-dimethylacetamide(D…
- Who is the assignee on this patent?
- Univ Industry Cooperation Group Kyung Hee Univ, Univ Industry Cooperation Group Kyung Hee Univ
- What technology area does this patent fall under?
- Primary CPC classification H01L41/082. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 23 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).