JPS57174323A - Treatment of polyacetal molding - Google Patents

Treatment of polyacetal molding

Info

Publication number
JPS57174323A
JPS57174323A JP5958181A JP5958181A JPS57174323A JP S57174323 A JPS57174323 A JP S57174323A JP 5958181 A JP5958181 A JP 5958181A JP 5958181 A JP5958181 A JP 5958181A JP S57174323 A JPS57174323 A JP S57174323A
Authority
JP
Japan
Prior art keywords
molding
treatment
formaldehyde
washed
temperature
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
JP5958181A
Other languages
Japanese (ja)
Other versions
JPS6046134B2 (en
Inventor
Kenji Matsuzane
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.)
POLY PLASTICS KK
Polyplastics Co Ltd
Original Assignee
POLY PLASTICS KK
Polyplastics Co 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 POLY PLASTICS KK, Polyplastics Co Ltd filed Critical POLY PLASTICS KK
Priority to JP5958181A priority Critical patent/JPS6046134B2/en
Publication of JPS57174323A publication Critical patent/JPS57174323A/en
Publication of JPS6046134B2 publication Critical patent/JPS6046134B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

PURPOSE: To lower water pollution due to formaldehyde, by immersing a polyacetal resin molding in a saline solution at a specified pH and a temperature.
CONSTITUTION: A polyacetal resin molding is washed with running water and immersed in a saline solution at a pH ≤7 and a temperature ≤100°C. Then, this treated molding is washed with running water and hot air-dried. By this treatment, the formaldehyde formed during molding and heating is removed, and accordingly, water in contact with the molding is not contaminated with formaldehyde, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP5958181A 1981-04-20 1981-04-20 Processing method for polyacetal molded products Expired JPS6046134B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5958181A JPS6046134B2 (en) 1981-04-20 1981-04-20 Processing method for polyacetal molded products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5958181A JPS6046134B2 (en) 1981-04-20 1981-04-20 Processing method for polyacetal molded products

Publications (2)

Publication Number Publication Date
JPS57174323A true JPS57174323A (en) 1982-10-27
JPS6046134B2 JPS6046134B2 (en) 1985-10-14

Family

ID=13117332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5958181A Expired JPS6046134B2 (en) 1981-04-20 1981-04-20 Processing method for polyacetal molded products

Country Status (1)

Country Link
JP (1) JPS6046134B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638555A1 (en) * 1988-11-02 1990-05-04 Latschbacher Kajetan MARKING DEVICE, IN PARTICULAR FOR THE IDENTIFICATION OF LOTS IN THE FORESTRY BRANCH OF THE PAPER INDUSTRY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638555A1 (en) * 1988-11-02 1990-05-04 Latschbacher Kajetan MARKING DEVICE, IN PARTICULAR FOR THE IDENTIFICATION OF LOTS IN THE FORESTRY BRANCH OF THE PAPER INDUSTRY

Also Published As

Publication number Publication date
JPS6046134B2 (en) 1985-10-14

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