JPS54162747A - Reduction of formaldehyde concentration - Google Patents
Reduction of formaldehyde concentrationInfo
- Publication number
- JPS54162747A JPS54162747A JP7243778A JP7243778A JPS54162747A JP S54162747 A JPS54162747 A JP S54162747A JP 7243778 A JP7243778 A JP 7243778A JP 7243778 A JP7243778 A JP 7243778A JP S54162747 A JPS54162747 A JP S54162747A
- Authority
- JP
- Japan
- Prior art keywords
- formaldehyde
- parts
- liberated
- reduction
- resin
- 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
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To reduce the formaldehyde liberated in a formaldehyde-type thermosetting resin without degrading the properties of the resin, by adding specific amounts of urea and resorcinol to the resin.
CONSTITUTION: 100 parts by wt. of a formaldehyde-type thermosetting resin is kneaded with (A) 5W20 parts by wt. of a urea, (B) 0.5W8 parts by wt., preferably 1W5 parts by wt., of resorcinol above normal temperature, and allowed to stand for 5W6 hr, preferably about 12 hr. The amount of the liberated formaldehyde is reduced to a concentration of 0.1W0.2% or less which is odorless.
EFFECT: Effective for the reduction of not only liberated formaldehyde but also formaldehyde released from cured resins with time. Improved adhesiveness.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7243778A JPS54162747A (en) | 1978-06-14 | 1978-06-14 | Reduction of formaldehyde concentration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7243778A JPS54162747A (en) | 1978-06-14 | 1978-06-14 | Reduction of formaldehyde concentration |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54162747A true JPS54162747A (en) | 1979-12-24 |
Family
ID=13489267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7243778A Pending JPS54162747A (en) | 1978-06-14 | 1978-06-14 | Reduction of formaldehyde concentration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54162747A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020050730A (en) * | 2018-09-26 | 2020-04-02 | アイカ工業株式会社 | Method for producing phenol resin composition for inorganic fiber heat insulation material |
-
1978
- 1978-06-14 JP JP7243778A patent/JPS54162747A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020050730A (en) * | 2018-09-26 | 2020-04-02 | アイカ工業株式会社 | Method for producing phenol resin composition for inorganic fiber heat insulation material |
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