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:
Mar. 28, 1995
Filed:
Sep. 30, 1993
Applicant:
Inventors:
Beth O Teague, Asheville, NC (US);
Dennis G Shealy, Fletcher, NC (US);
William C Hiatt, Hendersonville, NC (US);
Assignee:
BASF Corporation, Parsippany, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
95187 ; 95199 ; 95200 ; 95212 ; 95214 ; 95239 ; 264169 ;
Abstract
Disclosed is a process for removing emissions from caprolactam polymerization operations and thermoplastic polycaprolactam processing operations by collecting air containing the emissions, directing the air, containing the emissions, to a candle filter in a candle filter housing and rinsing the air, containing the emissions, within the candle filter with an aqueous caprolactam solution, containing at least 4% by weight caprolactam.