Oil-absorbent polyurethane sponges with good mechanical properties

US9023908B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9023908-B2
Application numberUS-201113114500-A
CountryUS
Kind codeB2
Filing dateMay 24, 2011
Priority dateMay 27, 2010
Publication dateMay 5, 2015
Grant dateMay 5, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention relates to a method for adsorbing and/or absorbing oil, by bringing oil into contact with a polyurethane sponge with excellent mechanical properties.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for absorbing hydrophobic liquids comprising oil on the surface of an oil-contaminated body of water, comprising contacting the hydrophobic liquid on the surface of the body of water with a polyurethane sponge with a density from 70 to 300 g/dm 3 , with from 1 to 20 cells/cm, with a rebound resilience greater than 30%, with an elongation at break greater than 200%, with a tear propagation resistance greater than 1.2 N/mm, with a compressive str…

Assignees

Inventors

Classifications

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 US9023908B2 cover?
The present invention relates to a method for adsorbing and/or absorbing oil, by bringing oil into contact with a polyurethane sponge with excellent mechanical properties.
Who is the assignee on this patent?
Mohmeyer Nils, Fritz Ralf, Bruchmann Bernd, and 4 more
What technology area does this patent fall under?
Primary CPC classification C02F1/681. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 05 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).