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:
Dec. 27, 1977
Filed:
Sep. 17, 1976
Franklin T Osborne, Gulf Breeze, FL (US);
Monsanto Company, St. Louis, MO (US);
Abstract
A process for controlling a bonding gas system is disclosed. The process controls temperature and composition of an activating gas used for bonding a nonwoven web of continuous nylon filaments and for supplying the gas to a gas box at a temperature just above its dew-point. A monitored concentration of liquid HCl, maintained at a predetermined temperature, is supplied to a stripper column; an HCl-water-air mixture which contains a low volume percent of HCl is circulated through the stripper column so that the mixture evaporates a portion of the liquid HCl wherein the volume percent of HCl in the mixture is increased thereby forming a bonding gas having the desired HCl concentration; the temperature of the gas leaving the stripper column is controlled so that the HCl concentration of the gas is just above its dew-point and then the gas is fed into a gas box.