IT1162421B - Procedimento per la produzione di masse di formatura di copolimeri ossimetilenici con ridotto contenuto di residui di di formaldeide - Google Patents

Procedimento per la produzione di masse di formatura di copolimeri ossimetilenici con ridotto contenuto di residui di di formaldeide

Info

Publication number
IT1162421B
IT1162421B IT50275/79A IT5027579A IT1162421B IT 1162421 B IT1162421 B IT 1162421B IT 50275/79 A IT50275/79 A IT 50275/79A IT 5027579 A IT5027579 A IT 5027579A IT 1162421 B IT1162421 B IT 1162421B
Authority
IT
Italy
Prior art keywords
production
reduced content
oxymethylene copolymers
forming masses
formaldehyde residues
Prior art date
Application number
IT50275/79A
Other languages
English (en)
Other versions
IT7950275A0 (it
Inventor
Herbert Amann
Gerhard Morlock
Hellmut Trautwein
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 IT7950275A0 publication Critical patent/IT7950275A0/it
Application granted granted Critical
Publication of IT1162421B publication Critical patent/IT1162421B/it

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)
  • Phenolic Resins Or Amino Resins (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT50275/79A 1978-09-19 1979-09-17 Procedimento per la produzione di masse di formatura di copolimeri ossimetilenici con ridotto contenuto di residui di di formaldeide IT1162421B (it)

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 (2)

Publication Number Publication Date
IT7950275A0 IT7950275A0 (it) 1979-09-17
IT1162421B true IT1162421B (it) 1987-04-01

Family

ID=6049816

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50275/79A IT1162421B (it) 1978-09-19 1979-09-17 Procedimento per la produzione di masse di formatura di copolimeri ossimetilenici con ridotto contenuto di residui di di formaldeide

Country Status (12)

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

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
CN114058152A (zh) * 2021-12-13 2022-02-18 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 (it) 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
SE7907737L (sv) 1980-03-20
GB2030576B (en) 1982-12-22
JPS5543191A (en) 1980-03-26
US4225703A (en) 1980-09-30
GB2030576A (en) 1980-04-10
NL7905636A (nl) 1980-03-21
SU852177A3 (ru) 1981-07-30
DE2840679C2 (de) 1982-03-18
DD146055A5 (de) 1981-01-21
PL116522B1 (en) 1981-06-30
BE878840A (fr) 1980-03-17
IT7950275A0 (it) 1979-09-17
DE2840679A1 (de) 1980-03-20
PL218276A1 (it) 1980-06-02
FR2436796A1 (fr) 1980-04-18

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