JPS5569572A - Preparation of novel tetracarboxylic anhydride - Google Patents
Preparation of novel tetracarboxylic anhydrideInfo
- Publication number
- JPS5569572A JPS5569572A JP14159478A JP14159478A JPS5569572A JP S5569572 A JPS5569572 A JP S5569572A JP 14159478 A JP14159478 A JP 14159478A JP 14159478 A JP14159478 A JP 14159478A JP S5569572 A JPS5569572 A JP S5569572A
- Authority
- JP
- Japan
- Prior art keywords
- anhydride
- epoxy
- preparation
- dichloride
- tetracarboxylic anhydride
- 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
- Furan Compounds (AREA)
Abstract
PURPOSE: To obtain the title compound usable as a raw material for epoxy, polyimide, and polyamide resins in high yield, by reacting methyl-tetrahydrophthalic anhydride with sulfur mono- or dichloride.
CONSTITUTION: One mole of methyltetrahydrophthalic anhydride is reacted with 0.3W1mol, preferably 0.5W0.7mol, of sulfur mono- or dichloride in an inert solvent at 0W100°C, preferably 20W80°C, to give a low-melting tetrahydrocarboxylic anhydride of the formula (n is 1 or 2), (m.p.≤100°C).
USE: Epoxy resin hardeners having improved oprating efficiency, due to good compatibility with epoxy nesins at low temperatures.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14159478A JPS5569572A (en) | 1978-11-16 | 1978-11-16 | Preparation of novel tetracarboxylic anhydride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14159478A JPS5569572A (en) | 1978-11-16 | 1978-11-16 | Preparation of novel tetracarboxylic anhydride |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5569572A true JPS5569572A (en) | 1980-05-26 |
Family
ID=15295630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14159478A Pending JPS5569572A (en) | 1978-11-16 | 1978-11-16 | Preparation of novel tetracarboxylic anhydride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569572A (en) |
-
1978
- 1978-11-16 JP JP14159478A patent/JPS5569572A/en active Pending
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