Title:
汚染防止装置において又は火炎止めで使用するのに好適な不織布繊維性材料を製造するための再利用廃水の使用
Document Type and Number:
Japanese Patent JP6691865
Kind Code:
B2
Abstract:
A nonwoven fibrous material suitable for use in a pollution control device or as a firestop and made according to a method comprising: providing a first slurry comprising water, first inorganic fibers, a first organic binder, and a first neutral pH flocculent; removing first waste water from the first slurry; optionally forming a first nonwoven fibrous material from the first slurry; providing a second slurry comprising a quantity of the first waste water, an optional quantity of relatively clean water, second inorganic fibers, a second organic binder, and a second flocculent that is the same and/or a different flocculent than that used in the first slurry; and forming a second nonwoven fibrous material from the second slurry, wherein the second nonwoven fibrous material is suitable for use in a pollution control device or as a firestop. The addition of the first waste water in the second slurry does not adversely affect the flocculation of the second organic binder in the second slurry.
Inventors:
Mary, Richard P.
Harding, Ian Earl. Eye.
Howarth, Gary F.
Harding, Ian Earl. Eye.
Howarth, Gary F.
Application Number:
JP2016541095A
Publication Date:
May 13, 2020
Filing Date:
December 12, 2014
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
F01N3/28; B01D53/94; D21H13/36
Domestic Patent References:
| JP2008201126A | ||||
| JP2010519419A | ||||
| JP2001123386A |
Attorney, Agent or Firm:
Taro Akazawa
Wakako Nomura
Tsukuda Seigen
Ryohei Yoshino
Wakako Nomura
Tsukuda Seigen
Ryohei Yoshino