JPS5770118A - Phenol formaldehyde resin composition and its production - Google Patents
Phenol formaldehyde resin composition and its productionInfo
- Publication number
- JPS5770118A JPS5770118A JP14439680A JP14439680A JPS5770118A JP S5770118 A JPS5770118 A JP S5770118A JP 14439680 A JP14439680 A JP 14439680A JP 14439680 A JP14439680 A JP 14439680A JP S5770118 A JPS5770118 A JP S5770118A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- phenol
- methylol
- unreacted monomers
- water
- 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.)
- Granted
Links
Abstract
PURPOSE: The titled normally liquid resin useful for bonding polyurethanes, being low in content of unreacted phenol and having benzyl ether, methylol and methylene groups.
CONSTITUTION: A phenol formaldehyde resin having benzyl ether, methylol and methylene groups, is so designed that the content of free phenol is 10% or lower, the resin is a stable liquid at normal temperature, and the methylol/benzyl ratio is 0.5W 2.5. This resin can be prepared by reacting a phenol with a formaldehyde in an aqueous system to obtain a precondensate mixture containing unreacted monomers and water, passing the mixture through a long heated tube to vaporize the water and the unreacted monomers and at the same time polycondensate the precondensate, introducing the product into an atmosphere at a reduced pressure and a temperature ≥100°C, and removing the vaporized water and unreacted monomers out of the system and recovering the produced resin. This resin can be suitably used in curing a polyisocyanate containing at least two isocyanate groups by formation by urethane bonds.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14439680A JPS5770118A (en) | 1980-10-17 | 1980-10-17 | Phenol formaldehyde resin composition and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14439680A JPS5770118A (en) | 1980-10-17 | 1980-10-17 | Phenol formaldehyde resin composition and its production |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26050584A Division JPS60252615A (en) | 1984-12-10 | 1984-12-10 | Production of phenol-formaldehyde resin composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5770118A true JPS5770118A (en) | 1982-04-30 |
JPS6158084B2 JPS6158084B2 (en) | 1986-12-10 |
Family
ID=15361176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14439680A Granted JPS5770118A (en) | 1980-10-17 | 1980-10-17 | Phenol formaldehyde resin composition and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5770118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5756592A (en) * | 1995-11-27 | 1998-05-26 | Alliedsignal, Inc. | Process for the production of cyanate ester resins having unique composition |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843097A (en) * | 1971-09-30 | 1973-06-22 | ||
JPS53134054A (en) * | 1977-03-16 | 1978-11-22 | Ashland Oil Inc | Flowerpot and method of making same |
JPS54130698A (en) * | 1978-03-21 | 1979-10-11 | Ashland Oil Inc | Binder composition |
-
1980
- 1980-10-17 JP JP14439680A patent/JPS5770118A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843097A (en) * | 1971-09-30 | 1973-06-22 | ||
JPS53134054A (en) * | 1977-03-16 | 1978-11-22 | Ashland Oil Inc | Flowerpot and method of making same |
JPS54130698A (en) * | 1978-03-21 | 1979-10-11 | Ashland Oil Inc | Binder composition |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5756592A (en) * | 1995-11-27 | 1998-05-26 | Alliedsignal, Inc. | Process for the production of cyanate ester resins having unique composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6158084B2 (en) | 1986-12-10 |
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