Storage-stable polyurethane-prepregs and fibre composite components produced therefrom
US-2015080530-A1 · Mar 19, 2015 · US
Storage-stable polyurethane-prepregs and fibre composite components produced therefrom
US9399705B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9399705-B2 |
| Application number | US-201314386030-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2013 |
| Priority date | Mar 20, 2012 |
| Publication date | Jul 26, 2016 |
| Grant date | Jul 26, 2016 |
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.
The invention relates to storage-stable prepregs (preimpregnated fibers) based on low-viscosity polyurethane systems having a very high characteristic number and flat fiber composite components (molded bodies; composite components) produced therefrom, which are obtained due to an impregnation method of fiber reinforced materials such as woven fabrics and fleece, and to a method for the production thereof.
First claim
Opening claim text (preview).
What is claimed is: 1. A prepreg comprising a sheet-like fiber layer saturated with polyurethane that has not been fully hardened and that has an NCO value of from 8% by weight to 16% by weight, and that has a T g -value below 40° C. measured in accordance with DIN EN ISO 53765-A-20, where the polyurethane that has not been fully hardened is obtained from a reaction mixture comprising A) one or more di- and/or polyisocyanates selected from the group consisting of aromatic di- and/…
Assignees
Inventors
Classifications
Chemistry & Metallurgy · mapped topic
- C08G18/58Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08G18/7664Primary
Chemistry & Metallurgy · 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 US9399705B2 cover?
- The invention relates to storage-stable prepregs (preimpregnated fibers) based on low-viscosity polyurethane systems having a very high characteristic number and flat fiber composite components (molded bodies; composite components) produced therefrom, which are obtained due to an impregnation method of fiber reinforced materials such as woven fabrics and fleece, and to a method for the producti…
- Who is the assignee on this patent?
- Bayer Ip Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C08G18/58. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 26 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).