BE878840A - Procede de fabrication de matieres de moulage en copolymere d'oxymethylene a faible teneur en formaldehyde residuel et produits ainsi obtenus - Google Patents

Procede de fabrication de matieres de moulage en copolymere d'oxymethylene a faible teneur en formaldehyde residuel et produits ainsi obtenus

Info

Publication number
BE878840A
BE878840A BE6/46945A BE6046945A BE878840A BE 878840 A BE878840 A BE 878840A BE 6/46945 A BE6/46945 A BE 6/46945A BE 6046945 A BE6046945 A BE 6046945A BE 878840 A BE878840 A BE 878840A
Authority
BE
Belgium
Prior art keywords
products
manufacturing
molding material
low residual
formaldehyde content
Prior art date
Application number
BE6/46945A
Other languages
English (en)
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of BE878840A publication Critical patent/BE878840A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/30—Chemical modification by after-treatment
    • C08G2/36—Chemical modification by after-treatment by depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/28—Post-polymerisation treatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
BE6/46945A 1978-09-19 1979-09-17 Procede de fabrication de matieres de moulage en copolymere d'oxymethylene a faible teneur en formaldehyde residuel et produits ainsi obtenus BE878840A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2840679A DE2840679C2 (de) 1978-09-19 1978-09-19 Verfahren zur Herstellung von Oxymethylencopolymerisat-Formmassen mit geringem Anteil an Restformaldehyd

Publications (1)

Publication Number Publication Date
BE878840A true BE878840A (fr) 1980-03-17

Family

ID=6049816

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6/46945A BE878840A (fr) 1978-09-19 1979-09-17 Procede de fabrication de matieres de moulage en copolymere d'oxymethylene a faible teneur en formaldehyde residuel et produits ainsi obtenus

Country Status (12)

Country Link
US (1) US4225703A (fr)
JP (1) JPS5543191A (fr)
BE (1) BE878840A (fr)
DD (1) DD146055A5 (fr)
DE (1) DE2840679C2 (fr)
FR (1) FR2436796A1 (fr)
GB (1) GB2030576B (fr)
IT (1) IT1162421B (fr)
NL (1) NL7905636A (fr)
PL (1) PL116522B1 (fr)
SE (1) SE7907737L (fr)
SU (1) SU852177A3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55157617A (en) * 1979-05-28 1980-12-08 Mitsubishi Gas Chem Co Inc Thermal stabilization of oxymethylene copolymer
US4458064A (en) * 1982-02-19 1984-07-03 Celanese Corporation Process and apparatus for continual melt hydrolysis of acetal copolymers
JPS58167608A (ja) 1982-03-29 1983-10-03 Asahi Chem Ind Co Ltd 重合触媒失活法
JPS59227916A (ja) * 1983-06-08 1984-12-21 Polyplastics Co トリオキサンの重合体及び共重合体の製造法
JPS601216A (ja) * 1983-06-17 1985-01-07 Polyplastics Co トリオキサンの共重合体製造法
US4650692A (en) * 1985-11-01 1987-03-17 Ashland Oil, Inc. Metal-sulfonate/piperidine derivative combination protective coatings
CN1035510C (zh) * 1990-09-29 1997-07-30 化学工业部晨光化工研究院一分院 一步法聚甲醛熔融后处理工艺
US5822868A (en) * 1995-09-12 1998-10-20 Hna Holdings, Inc. Luminous flame of acetal polymers
JP3771008B2 (ja) * 1997-07-16 2006-04-26 ポリプラスチックス株式会社 分岐又は架橋ポリアセタール樹脂の製造方法
US20040063853A1 (en) * 1998-04-08 2004-04-01 Stefan Disch Polyoxymethylene moulding material with improved processing stability and a reduced emissions tendency
CN114058152B (zh) * 2021-12-13 2024-07-05 重庆云天化天聚新材料有限公司 一种共聚甲醛树脂组合物及制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1720271U (fr) 1900-01-01
US3147234A (en) 1958-02-28 1964-09-01 Celanese Corp Modified oxymethylene polymers
US3103499A (en) * 1959-04-02 1963-09-10 Thermal stabilization of oxymethylene
DE1794387U (de) 1959-05-29 1959-08-27 Alfred Dr Neff Oelbeheizter kuechenherd.
DE1246244C2 (de) * 1964-11-11 1976-04-01 Basf Ag, 6700 Ludwigshafen Verfahren zum aufarbeiten von copolymerisaten des trioxans
US3640928A (en) 1968-06-12 1972-02-08 Sankyo Co Stabilization of synthetic polymers
CH523087A (de) 1969-03-21 1972-05-31 Luwa Ag Dünnschichtbehandlungsapparat
US3960984A (en) * 1974-04-16 1976-06-01 E. I. Du Pont De Nemours And Company Composition of oxymethylene polymer and amide oligomers
DE2436384A1 (de) * 1974-07-29 1976-02-12 Basf Ag Verfahren zur entfernung von geruchsbildendem formaldehyd aus stabilisierten geformten polyoxymethylenen
DE2540207B1 (de) * 1975-09-10 1976-11-18 Degussa Polyoxymethylen-Formmassen(I)

Also Published As

Publication number Publication date
DD146055A5 (de) 1981-01-21
NL7905636A (nl) 1980-03-21
GB2030576A (en) 1980-04-10
PL218276A1 (fr) 1980-06-02
DE2840679C2 (de) 1982-03-18
IT1162421B (it) 1987-04-01
IT7950275A0 (it) 1979-09-17
PL116522B1 (en) 1981-06-30
SE7907737L (sv) 1980-03-20
DE2840679A1 (de) 1980-03-20
FR2436796A1 (fr) 1980-04-18
SU852177A3 (ru) 1981-07-30
JPS5543191A (en) 1980-03-26
US4225703A (en) 1980-09-30
GB2030576B (en) 1982-12-22

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: DEUTSCHE GOLD- UND SILBER-SCHEIDEANSTALT VORMALS

Effective date: 19840917