JPS5721414A - Polymerization of formaldehyde - Google Patents
Polymerization of formaldehydeInfo
- Publication number
- JPS5721414A JPS5721414A JP9569380A JP9569380A JPS5721414A JP S5721414 A JPS5721414 A JP S5721414A JP 9569380 A JP9569380 A JP 9569380A JP 9569380 A JP9569380 A JP 9569380A JP S5721414 A JPS5721414 A JP S5721414A
- Authority
- JP
- Japan
- Prior art keywords
- polyvalent
- metal salt
- alkyl
- specified
- formula
- 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
Landscapes
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
PURPOSE: To prevent deposition of polyoxymethylene on the inner wall or like area of a reaction vessel, by slurry-polymerizing HCHO in an inert organic medium in the presence of a specified polyvalent-metal salt, a specified polyethylene glycol monoether and a specified polymerization catalyst.
CONSTITUTION: To 1l of an inert organic medium, e.g., benzene, are added 0.1W 50mg of a polyvalent-metal salt selected from a polyvalent-metal salt of an alkylsalicyclic acid of formula I, wherein R2 is a 3W22C alkyl and m is 1W3, and a polyvalent-metal salt of a sulfosuccinic acid of formula II, wherein R3 and R4 are each a 3W8C alkyl, 1W500mg of an ethylene glycol monoether of formula III, wherein R1 is a 10W20C alkyl, alkenyl or alkylaryl and n is 2W10, and 1×10-7W1× 10-3mol of a polymerization catalyst, e.g., butylamine. Then, HCHO is introduced continuously into the resulting solution, and polymerized under an atmospheric pressure to 5kg/cm2 and a temperature of -20W80°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9569380A JPS5848562B2 (en) | 1980-07-15 | 1980-07-15 | Formaldehyde polymerization method |
EP80302888A EP0026047B1 (en) | 1979-08-23 | 1980-08-20 | Process for polymerizing formaldehyde |
DE8080302888T DE3067348D1 (en) | 1979-08-23 | 1980-08-20 | Process for polymerizing formaldehyde |
US06/180,306 US4332930A (en) | 1979-08-23 | 1980-08-22 | Process for polymerizing formaldehyde |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9569380A JPS5848562B2 (en) | 1980-07-15 | 1980-07-15 | Formaldehyde polymerization method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5721414A true JPS5721414A (en) | 1982-02-04 |
JPS5848562B2 JPS5848562B2 (en) | 1983-10-29 |
Family
ID=14144569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9569380A Expired JPS5848562B2 (en) | 1979-08-23 | 1980-07-15 | Formaldehyde polymerization method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848562B2 (en) |
-
1980
- 1980-07-15 JP JP9569380A patent/JPS5848562B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5848562B2 (en) | 1983-10-29 |
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