JPS5721414A - Polymerization of formaldehyde - Google Patents

Polymerization of formaldehyde

Info

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
Application number
JP9569380A
Other languages
Japanese (ja)
Other versions
JPS5848562B2 (en
Inventor
Takami Ishii
Naohisa Takigawa
Kiyoaki Tokunaga
Nobuhiro Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Corp
Original Assignee
Ube Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP9569380A priority Critical patent/JPS5848562B2/en
Priority to EP80302888A priority patent/EP0026047B1/en
Priority to DE8080302888T priority patent/DE3067348D1/en
Priority to US06/180,306 priority patent/US4332930A/en
Publication of JPS5721414A publication Critical patent/JPS5721414A/en
Publication of JPS5848562B2 publication Critical patent/JPS5848562B2/en
Expired legal-status Critical Current

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
JP9569380A 1979-08-23 1980-07-15 Formaldehyde polymerization method Expired JPS5848562B2 (en)

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)

Also Published As

Publication number Publication date
JPS5848562B2 (en) 1983-10-29

Similar Documents

Publication Publication Date Title
JPS5559180A (en) 4-hydroxy-2-pyrone ring compound, its preparation, and remedy for hyperlipemia comprising it as active constituent
GB947471A (en) Material for printing plates
JPS5721414A (en) Polymerization of formaldehyde
JPS568365A (en) Nitrogen-containing heterocyclic compounds bearing acetal groups and its production
JPS56167688A (en) Urethane bicycloorthoester
JPS5313689A (en) Preparation of polymers
JPS56166137A (en) Preparation of diether
JPS5432427A (en) Novel diphenyl ether compounds and herbicides
JPS56103159A (en) Preparation of novel peroxy ester
JPS55141437A (en) Preparation of alkenylcarboxylate derivative
JPS54132696A (en) Preparation of polyester
JPS5671062A (en) Preparation of bis-(4-hydroxyphenyl) sulfone derivative
JPS5731918A (en) Production of polyacetal polymer
JPS55139336A (en) Preparation of polycarboxylic acid and its ester
JPS56127625A (en) Crosslinking agent
JPS5751712A (en) Self-curing phenol resin and its production
JPS5325504A (en) Isolation of glycols
JPS5538836A (en) Epoxy resin curing agent
JPS5464600A (en) Preparation of polyaluminoxane chelate compound
JPS56120670A (en) 1-substituted imidazole derivative and its preparation
JPS56167656A (en) Preparation of methylenedicarbanilate
JPS54132697A (en) Preparation of polyester containing small amount of carboxyl group
JPS5721346A (en) Production of farnesylacetic ester
JPS5249293A (en) Process for preparing high-molecular weight
JPS5749615A (en) Preparation of polyester having high polymerization degree