The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2008
Filed:
Mar. 10, 2006
Yogesh C. Trivedi, Grosse lle, MI (US);
Theodore M. Smiecinski, Woodhaven, MI (US);
Yogesh C. Trivedi, Grosse lle, MI (US);
Theodore M. Smiecinski, Woodhaven, MI (US);
BASF Corporation, Florham Park, NJ (US);
Abstract
An apparatus includes a container that defines an interior. The interior is isolated from ambient atmosphere for receiving a composition that includes isocyanate. A conduit extends into the container and defines a channel therethrough. An interior of the container is in fluid communication with the ambient atmosphere through the channel for conveying a gaseous waste stream that includes vaporized unreacted isocyanate out of the container and into the ambient atmosphere. A medium is disposed in the channel and has free isocyanate-reactive groups for reacting with unreacted isocyanate. The free isocyanate-reactive groups remove the unreacted isocyanate from the gaseous waste stream. The medium, by including the free isocyanate-reactive groups, relies on a chemical reaction to remove the unreacted isocyanate.