JPS5653122A - Preparation of polyoxymethylene - Google Patents
Preparation of polyoxymethyleneInfo
- Publication number
- JPS5653122A JPS5653122A JP12869879A JP12869879A JPS5653122A JP S5653122 A JPS5653122 A JP S5653122A JP 12869879 A JP12869879 A JP 12869879A JP 12869879 A JP12869879 A JP 12869879A JP S5653122 A JPS5653122 A JP S5653122A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- polyoxymethylene
- heating
- alkoxy
- alkyl
- 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: To prepare polyoxymethylene having high polymerization degree and good thermal stability, by polymerizing formaldehyde using a specific aluminum compound as a catalyst, and heating the polymer thus obtained in the presence of a peroxide compound, etc.
CONSTITUTION: The objective polymer is prepared by (1) polymerizing formaldehyde in the presence of a catalyst prepared by reacting (A) an Al compound of formula (R1 is alkyl or alkoxy; R2 and R3 are alkyl alkoxy, or halogen) with (B) a compound having O or N as a donor and capable of forming coordinate bonds (e.g. salicylic acid) or contacting the reaction product with (C) a phosphoruscontaining compound (e.g. triphenyl phosphite) or an amine (e.g. ethylene-diamine), and (2) heating the resulting polyoxymethylene in the presence of pref. 10-8W 10-5mol, per 1g. of the polyoxymethylene, of (D) a peroxide compound or a Lewis acid.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12869879A JPS5653122A (en) | 1979-10-05 | 1979-10-05 | Preparation of polyoxymethylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12869879A JPS5653122A (en) | 1979-10-05 | 1979-10-05 | Preparation of polyoxymethylene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5653122A true JPS5653122A (en) | 1981-05-12 |
JPS6221366B2 JPS6221366B2 (en) | 1987-05-12 |
Family
ID=14991201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12869879A Granted JPS5653122A (en) | 1979-10-05 | 1979-10-05 | Preparation of polyoxymethylene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5653122A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5994616U (en) * | 1982-12-17 | 1984-06-27 | 株式会社クボタ | Cast crankshaft for single cylinder engine |
JPS59110915A (en) * | 1982-12-13 | 1984-06-27 | Nissan Motor Co Ltd | Crankshaft for reciprocating internal-combustion engine |
KR20180006948A (en) | 2015-07-15 | 2018-01-19 | 코니카 미놀타 가부시키가이샤 | Organic thin film laminate and organic electroluminescence element |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5494549A (en) * | 1978-01-10 | 1979-07-26 | Mitsubishi Chem Ind Ltd | Stabilization of polyoxymethylene |
-
1979
- 1979-10-05 JP JP12869879A patent/JPS5653122A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5494549A (en) * | 1978-01-10 | 1979-07-26 | Mitsubishi Chem Ind Ltd | Stabilization of polyoxymethylene |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110915A (en) * | 1982-12-13 | 1984-06-27 | Nissan Motor Co Ltd | Crankshaft for reciprocating internal-combustion engine |
JPH0340247B2 (en) * | 1982-12-13 | 1991-06-18 | ||
JPS5994616U (en) * | 1982-12-17 | 1984-06-27 | 株式会社クボタ | Cast crankshaft for single cylinder engine |
JPH0110495Y2 (en) * | 1982-12-17 | 1989-03-27 | ||
KR20180006948A (en) | 2015-07-15 | 2018-01-19 | 코니카 미놀타 가부시키가이샤 | Organic thin film laminate and organic electroluminescence element |
Also Published As
Publication number | Publication date |
---|---|
JPS6221366B2 (en) | 1987-05-12 |
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