NL7905636A - Werkwijze voor het bereiden van oxymethyleencopolymeer- -vormmassa's met een gering gehalte aan restformalde- hyde. - Google Patents

Werkwijze voor het bereiden van oxymethyleencopolymeer- -vormmassa's met een gering gehalte aan restformalde- hyde. Download PDF

Info

Publication number
NL7905636A
NL7905636A NL7905636A NL7905636A NL7905636A NL 7905636 A NL7905636 A NL 7905636A NL 7905636 A NL7905636 A NL 7905636A NL 7905636 A NL7905636 A NL 7905636A NL 7905636 A NL7905636 A NL 7905636A
Authority
NL
Netherlands
Prior art keywords
sec
residual
formal
heating
polymer melt
Prior art date
Application number
NL7905636A
Other languages
English (en)
Dutch (nl)
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 NL7905636A publication Critical patent/NL7905636A/nl

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)
NL7905636A 1978-09-19 1979-07-19 Werkwijze voor het bereiden van oxymethyleencopolymeer- -vormmassa's met een gering gehalte aan restformalde- hyde. NL7905636A (nl)

Applications Claiming Priority (2)

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
DE2840679 1978-09-19

Publications (1)

Publication Number Publication Date
NL7905636A true NL7905636A (nl) 1980-03-21

Family

ID=6049816

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7905636A NL7905636A (nl) 1978-09-19 1979-07-19 Werkwijze voor het bereiden van oxymethyleencopolymeer- -vormmassa's met een gering gehalte aan restformalde- hyde.

Country Status (12)

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

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 (de) 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
PL218276A1 (de) 1980-06-02
FR2436796A1 (fr) 1980-04-18
GB2030576B (en) 1982-12-22
JPS5543191A (en) 1980-03-26
US4225703A (en) 1980-09-30
IT1162421B (it) 1987-04-01
BE878840A (fr) 1980-03-17
IT7950275A0 (it) 1979-09-17
DE2840679A1 (de) 1980-03-20
DD146055A5 (de) 1981-01-21
DE2840679C2 (de) 1982-03-18
SE7907737L (sv) 1980-03-20
SU852177A3 (ru) 1981-07-30
PL116522B1 (en) 1981-06-30
GB2030576A (en) 1980-04-10

Similar Documents

Publication Publication Date Title
US4139575A (en) Polyoxymethylene molding composition containing melamine formaldehyde polycondensate
JP5036973B2 (ja) 不安定末端基分解処理剤を用いた、安定化ポリアセタール樹脂の製造方法
KR101301818B1 (ko) 폴리옥시메틸렌의 제조 방법
NL7905636A (nl) Werkwijze voor het bereiden van oxymethyleencopolymeer- -vormmassa's met een gering gehalte aan restformalde- hyde.
WO2006098251A1 (ja) 不安定末端基分解処理剤、それを用いた安定化ポリアセタール樹脂、製造方法、組成物及び成形体
US4744934A (en) Process for devolatilizing molten oxymethylene polymer
EP0128739B1 (de) Verfahren zur Herstellung von Trioxanhomopolymeren oder -copolymeren
JP5031198B2 (ja) 不安定末端基分解処理剤を用いた、安定化ポリアセタール樹脂の製造方法
JP5031196B2 (ja) 不安定末端基分解処理剤を用いた、安定化ポリアセタール樹脂の製造方法
WO2015075999A1 (ja) ポリオキシメチレン樹脂組成物の製造方法
US3336262A (en) Branched chain polyoxymethylene polycarboxylates
JP3309641B2 (ja) オキシメチレン共重合体の製造方法
WO1995023171A1 (fr) Procede de production de copolymere d'acetal
CN112566979A (zh) 制备稳定的聚甲醛共聚物(cpom)的方法
US3626030A (en) Stabilized macromolecular polyacetals and process for making the same
KR100753387B1 (ko) 옥시메틸렌 공중합체의 제조 방법
JP2008195755A (ja) オキシメチレン共重合体組成物
JP4605322B2 (ja) オキシメチレン共重合体の製造方法
JP6632691B2 (ja) ポリオキシメチレン樹脂組成物の製造方法
US3280068A (en) Polyoxymethylenes containing allophanates as stabilizers
JPH04145115A (ja) ポリオキシメチレン共重合体組成物
KR100270820B1 (ko) 옥시메틸렌 공중합체의 제조방법
WO2023136005A1 (ja) ポリアセタール重合体の製造方法
JPH0280416A (ja) オキシメチレン重合体組成物
JP2023103736A (ja) ポリアセタール重合体の製造方法

Legal Events

Date Code Title Description
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: DEGUSSA AKTIENGESELLSCHAFT

BV The patent application has lapsed