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:
Aug. 07, 2007
Filed:
Dec. 31, 2002
Harry B. Cline, Heath, OH (US);
William E. Downey, Granville, OH (US);
Liang Chen, New Albany, OH (US);
Kathleen M. Bullock, Zanesville, OH (US);
Kevin S. Guigley, Granville, OH (US);
Yadollah Delaviz, Granville, OH (US);
William R. Cooper, Johnstown, OH (US);
Bobby R. Gibson, Newark, OH (US);
Michael P. Lewis, Newark, OH (US);
Michael V. Mager, Pickerington, OH (US);
Harry B. Cline, Heath, OH (US);
William E. Downey, Granville, OH (US);
Liang Chen, New Albany, OH (US);
Kathleen M. Bullock, Zanesville, OH (US);
Kevin S. Guigley, Granville, OH (US);
Yadollah Delaviz, Granville, OH (US);
William R. Cooper, Johnstown, OH (US);
Bobby R. Gibson, Newark, OH (US);
Michael P. Lewis, Newark, OH (US);
Michael V. Mager, Pickerington, OH (US);
Owens-Corning Fiberglas Technology, Inc., Summit, IL (US);
Abstract
A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment. The neutralization system introduces a base solution to a washwater solution when the pH of the washwater solution contained in a closed loop washwater recovery system falls below about 8.5, thereby substantially reducing the corrosion rate of the components of the equipment associated with acidic polyacrylic acid binder, maleic acid cobinder or maleic anhydride cobinder and washwater solution. A closed-loop hoodwall washwater recovery system may also be introduced in addition to the neutralization system that allows for the recovery and reuse of polyacrylic acid binder and maleic acid cobinder or maleic anhydride cobinder with a minimal amount of base solution, thereby minimizing degradation of insulation properties of polyacylic acid bound glass fiber products.