Title:
METHOD OF PRODUCING LOW-ODOR EMULSION
Document Type and Number:
WIPO Patent Application WO/2022/075275
Kind Code:
A1
Abstract:
A method of producing a low-odor emulsion, wherein the method comprises: a step for stocking an aqueous polymer emulsion in a treatment vessel that can be depressurized, bringing the temperature of the aqueous polymer emulsion into the range of 50-90°C, bringing the pressure inside the treatment vessel to the range of 12-57 KPa, keeping the inside of the treatment vessel in a state where water boils, and supplying pressurized water vapor through a supply passage into the treatment vessel; and a step for discharging, to the outside of the system, water vapor of a gas phase part inside the treatment vessel as well as volatile organic compounds that have been volatilized from the aqueous polymer emulsion. The ratio of the inner diameter of the treatment vessel to the opening diameter of a supply opening for supplying the pressurized water vapor to inside the treatment vessel from the supply passage is set to 30-3,000 relative to an opening diameter 1 of the supply opening.
Inventors:
SHIBATA HIROYUKI (JP)
TERADA MASARU (JP)
TERADA MASARU (JP)
Application Number:
PCT/JP2021/036678
Publication Date:
April 14, 2022
Filing Date:
October 04, 2021
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
International Classes:
C08F6/16; C08F220/10
Foreign References:
| JP2007077221A | 2007-03-29 | |||
| JP2006199840A | 2006-08-03 | |||
| JP2017137399A | 2017-08-10 | |||
| JP2002060415A | 2002-02-26 | |||
| JP2002060415A | 2002-02-26 | |||
| JP2002212207A | 2002-07-31 | |||
| JPS58213003A | 1983-12-10 | |||
| JPS5341387A | 1978-04-14 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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