Invention Grant
- Patent Title: Fine paper mill defoamer and its use
- Patent Title (中): 超薄纸磨机及其使用
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Application No.: US3697438DApplication Date: 1970-12-14
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Publication No.: US3697438APublication Date: 1972-10-10
- Inventor: LIEBERMAN HILLEL
- Applicant: BETZ LABORATORIES
- Assignee: GE Betz Inc
- Current Assignee: GE Betz Inc
- Priority: US9806270 1970-12-14
- Main IPC: B01D19/04
- IPC: B01D19/04 ; B01D17/00
Abstract:
THE PRESENT INVENTION IS DIRECTED TO A METHOD AND COMPOSITION FOR CONTROLLING FOAM IN AQUEOUS SYSTEMS AND IN PARTICULAR PAPER MAKING SYSTEMS. THE METHOD BASICALLY COMPRISES ADDING TO FOAM-PRONE AREAS OF THE SYSTEMS A COMPOSITION COMPRISING A MINERAL OIL, A MIXTURE OF POLYETHYLENE GLYCOL ESTERS, A POLYPROPYLENE GLYCOL AND A FATTY ALCOHOL.
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