JPS5724619A - Arresting of free formaldehyde - Google Patents

Arresting of free formaldehyde

Info

Publication number
JPS5724619A
JPS5724619A JP10014680A JP10014680A JPS5724619A JP S5724619 A JPS5724619 A JP S5724619A JP 10014680 A JP10014680 A JP 10014680A JP 10014680 A JP10014680 A JP 10014680A JP S5724619 A JPS5724619 A JP S5724619A
Authority
JP
Japan
Prior art keywords
holder
cast
covered
treating
gypsum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10014680A
Other languages
Japanese (ja)
Inventor
Toshiya Kato
Akifumi Nagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYOWA GIKEN KK
Aica Kogyo Co Ltd
Marubishi Yuka Kogyo KK
Original Assignee
KYOWA GIKEN KK
Aica Kogyo Co Ltd
Marubishi Yuka Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KYOWA GIKEN KK, Aica Kogyo Co Ltd, Marubishi Yuka Kogyo KK filed Critical KYOWA GIKEN KK
Priority to JP10014680A priority Critical patent/JPS5724619A/en
Publication of JPS5724619A publication Critical patent/JPS5724619A/en
Pending legal-status Critical Current

Links

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  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To prevent the release of HCHO by covering a material to be processed with a holder bearing a HCHO arrestor or arranging the holder in a processing device.
CONSTITUTION: In case where the surface of a material to be processed is covered, an aqueous solution of an arrestor, e.g., urea, melamine, etc., is coated on a holder, e.g., nonwoven fabric, etc., and then dried to obtain a treating holder. The holder is provided to the bottom or inner wall of molding form. For example, gypsum slurry containing formaldehyde resin is cast in a form, the treating holder is soon overlaid on the surface of the cast resin, the cast gypsum is removed from the form after hardening to form a covered gypsum plate, and then the covered gypsum plate is further cured in a dryer. Or, the treating holder may be placed at the exhaust port of a dryer.
COPYRIGHT: (C)1982,JPO&Japio
JP10014680A 1980-07-22 1980-07-22 Arresting of free formaldehyde Pending JPS5724619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10014680A JPS5724619A (en) 1980-07-22 1980-07-22 Arresting of free formaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10014680A JPS5724619A (en) 1980-07-22 1980-07-22 Arresting of free formaldehyde

Publications (1)

Publication Number Publication Date
JPS5724619A true JPS5724619A (en) 1982-02-09

Family

ID=14266170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10014680A Pending JPS5724619A (en) 1980-07-22 1980-07-22 Arresting of free formaldehyde

Country Status (1)

Country Link
JP (1) JPS5724619A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002145655A (en) * 2000-11-07 2002-05-22 Yoshino Gypsum Co Ltd Gypsum building material
CN107151462A (en) * 2017-04-05 2017-09-12 介休市博创纳米材料科技有限公司 It is a kind of long-acting except aldehyde, antibacterial, mould proof house ornamentation spray and its manufacture method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002145655A (en) * 2000-11-07 2002-05-22 Yoshino Gypsum Co Ltd Gypsum building material
CN107151462A (en) * 2017-04-05 2017-09-12 介休市博创纳米材料科技有限公司 It is a kind of long-acting except aldehyde, antibacterial, mould proof house ornamentation spray and its manufacture method

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