Enhanced method for monitoring the deposition of organic materials in a papermaking process
US8500957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2010 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jul 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0426
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring with enhanced sensitivity of the deposition of one or more organic materials dispersed in an aqueous medium in a papermaking process which includes measuring the rate of deposition of the organic materials from the aqueous medium onto a quartz crystal microbalance having a top side contacting with the aqueous medium coated with a layer containing a material with surface energy in the range from about 34 to about 49 dynes/cm2, and a second, bottom side isolated from the aqueous medium is disclosed. Additionally, a method for measuring the effectiveness of an inhibitor that decreases the deposition of the organic materials in a papermaking process is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.