Chemically-recycled pet fiber, rubber-fiber composite, conveyor belt, hose and tire
US-2024344242-A1 · Oct 17, 2024 · US
Thermoplastic multilayer tubes and process for manufacturing
US9200731B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9200731-B2 |
| Application number | US-201213426635-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2012 |
| Priority date | Mar 28, 2011 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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.
Disclosed is a multi-layer tube including: A) a first layer including a first layer composition including a1) about 25 to 100 weight percent of a semi-aromatic polyamide whose repeat units consist essentially of about 60 to about 85 molar percent of repeat units of the formula —C(O)(CH 2 ) m C(O)NH(CH 2 ) 6 NH— (I) wherein m is 8 and/or 10, and about 15 to about 40 molar percent of repeat units of the formula B) a second layer including a second layer composition including b1) 50 to 100 weight percent of poly(caprolactam); with the proviso that the first layer and second layer are in direct contact; and the weight percents are based upon the total weight of the first layer composition and the second layer composition, respectively.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multi-layer tube comprising: A) a first layer comprising a first layer composition comprising a1) about 35 to 90 weight percent of a semi-aromatic polyamide whose repeat units consist essentially of about 60 to about 85 molar percent of repeat units of the formula —C(O)(CH 2 ) m C(O)NH(CH 2 ) 6 NH—tm (I) wherein m is 8 and/or 10, and about 15 to about 40 molar percent of repeat units of the formula…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9200731B2 cover?
- Disclosed is a multi-layer tube including: A) a first layer including a first layer composition including a1) about 25 to 100 weight percent of a semi-aromatic polyamide whose repeat units consist essentially of about 60 to about 85 molar percent of repeat units of the formula —C(O)(CH 2 ) m C(O)NH(CH 2 ) 6 NH— (I) wherein m is 8 and/or 10, and about 15 to about 40 molar percent…
- Who is the assignee on this patent?
- Doshi Shailesh Ratilal, Lee H Chul, Du Pont
- What technology area does this patent fall under?
- Primary CPC classification F16L11/04. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 01 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).