[go: up one dir, main page]

TW357163B - A method for stabilizing unstable terminals of a crude oxymethylene copolymer - Google Patents

A method for stabilizing unstable terminals of a crude oxymethylene copolymer

Info

Publication number
TW357163B
TW357163B TW084104926A TW84104926A TW357163B TW 357163 B TW357163 B TW 357163B TW 084104926 A TW084104926 A TW 084104926A TW 84104926 A TW84104926 A TW 84104926A TW 357163 B TW357163 B TW 357163B
Authority
TW
Taiwan
Prior art keywords
zone
extruder
oxymethylene copolymer
crude oxymethylene
casing
Prior art date
Application number
TW084104926A
Other languages
English (en)
Inventor
Yukio Tanigawa
Hirohisa Morishita
Original Assignee
Asahi Chemical Ind
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13527007&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TW357163(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Asahi Chemical Ind filed Critical Asahi Chemical Ind
Application granted granted Critical
Publication of TW357163B publication Critical patent/TW357163B/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/565—Screws having projections other than the thread, e.g. pins
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
TW084104926A 1994-03-22 1995-05-18 A method for stabilizing unstable terminals of a crude oxymethylene copolymer TW357163B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7374294 1994-03-22

Publications (1)

Publication Number Publication Date
TW357163B true TW357163B (en) 1999-05-01

Family

ID=13527007

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084104926A TW357163B (en) 1994-03-22 1995-05-18 A method for stabilizing unstable terminals of a crude oxymethylene copolymer

Country Status (6)

Country Link
US (1) US5811511A (zh)
JP (1) JP2884439B2 (zh)
CN (1) CN1050614C (zh)
DE (1) DE19581517C2 (zh)
TW (1) TW357163B (zh)
WO (1) WO1995025761A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936715A1 (de) * 1999-08-06 2001-02-15 Ticona Gmbh Emissionsarme eingefärbte Polyoxymethylen-Formmassen
US6396569B2 (en) 1999-09-02 2002-05-28 Texas Instruments Incorporated Image displacement test reticle for measuring aberration characteristics of projection optics
TWI221406B (en) 2001-07-30 2004-10-01 Epix Medical Inc Systems and methods for targeted magnetic resonance imaging of the vascular system
JP2005264101A (ja) * 2004-03-22 2005-09-29 Asahi Kasei Chemicals Corp ポリアセタール樹脂
JP4516801B2 (ja) * 2004-08-23 2010-08-04 東レ株式会社 オキシメチレン共重合体の製造方法
JP2006291001A (ja) * 2005-04-08 2006-10-26 Mitsubishi Gas Chem Co Inc 低ホルムアルデヒド化ポリアセタール樹脂組成物の製造方法。
KR101288317B1 (ko) * 2005-04-12 2013-07-23 미츠비시 가스 가가쿠 가부시키가이샤 폴리옥시메틸렌 공중합체의 제조방법
DE102008018966A1 (de) 2008-04-16 2009-10-22 Ticona Gmbh Verfahren zur Herstellung von Oxymethylen-Polymeren und dafür geeignete Vorrichtung
EP2546272A1 (en) 2011-07-15 2013-01-16 Ticona GmbH Process for producing oxymethylene polymers
EP3804934A1 (de) * 2019-10-10 2021-04-14 Covestro Deutschland AG Extruder mit schneckenelementen mit besonders grosser steigung im bereich der entgasungsöffnung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408481C3 (de) * 1974-02-22 1981-12-24 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung eines stabilisierten Oxymethylencopolymeren
JPS57538A (en) * 1980-06-03 1982-01-05 Mitsubishi Heavy Ind Ltd Inspecting and diagnosing device for automobile or the like
JPS5811450B2 (ja) * 1980-11-20 1983-03-03 三菱瓦斯化学株式会社 オキシメチレン共重合体の熱安定化方法
JPS5811450A (ja) * 1981-07-09 1983-01-22 Toshiba Corp フアクシミリ装置
CA1198246A (en) * 1982-02-19 1985-12-17 Ananda M. Chatterjee Process and apparatus for continual melt hydrolysis of acetal copolymers
US4666995A (en) * 1984-10-25 1987-05-19 Celanese Corporation Oxymethylene polymer molding compositions having enhanced resistance to black speck formation
JPS61209216A (ja) * 1985-03-14 1986-09-17 Japan Synthetic Rubber Co Ltd オキシメチレン共重合体の製造方法
JPS62129311A (ja) * 1985-11-29 1987-06-11 Japan Synthetic Rubber Co Ltd オキシメチレン共重合体の製造方法
JPH0730150B2 (ja) * 1986-07-03 1995-04-05 東レ株式会社 安定なオキシメチレンコポリマの製造方法
JPS6314215A (ja) * 1986-07-04 1988-01-21 Hitachi Ltd 消費電流低減方式
JP3033096B2 (ja) * 1989-09-21 2000-04-17 東レ株式会社 射出成形用ポリオキシメチレン共重合体の製造方法

Also Published As

Publication number Publication date
JP2884439B2 (ja) 1999-04-19
CN1050614C (zh) 2000-03-22
CN1143375A (zh) 1997-02-19
US5811511A (en) 1998-09-22
WO1995025761A1 (en) 1995-09-28
DE19581517C2 (de) 2001-01-25
DE19581517T1 (de) 1997-04-24

Similar Documents

Publication Publication Date Title
TW357163B (en) A method for stabilizing unstable terminals of a crude oxymethylene copolymer
CA1096573A (en) Extruder screw
EP0144932B1 (en) Method for extruding thermoplastic material
US5951159A (en) Satellite extruder arrangement and method for the addition of an additive in a polymer melt within a dynamic mixer
KR920011681A (ko) 고성능 압출기
CN109789625A (zh) 在优选为塑料的材料挤出时的脱气
ATE75483T1 (de) Oligonukleotides heilmittel und dessen herstellungsverfahren.
EP0165651A3 (en) Process for mixing and extruding ceramic materials
AU641906B2 (en) Preform made from injection moulded or extruded plastic waste materials
SE7605936L (sv) Blandare med deltaformad rotor
US3929323A (en) Extruder feed section
KR950033091A (ko) 이축형압출기
GB841743A (en) Improvements in or relating to mixing apparatus
CA2103326A1 (en) Feeder-Rotor Assembly for Combines
AU585221B2 (en) Material outlet for heat exchanger
EP0209328A3 (en) Screw extruders
IL139414A0 (en) Plasticizing screw
JPS55157617A (en) Thermal stabilization of oxymethylene copolymer
AU1053300A (en) Rotor-stator mixing apparatus especially for single screw extruder
JPS56136632A (en) Continuous type kneading device
MY112436A (en) Improvements relating to a process for the manufacture of soap bars and apparatus for use in said process
KR880700728A (ko) 회전 압출기
JPH081738A (ja) 樹脂成形用スクリュー
EP0133979B1 (en) Extruder
SU880919A1 (ru) Пневмовинтовой питатель дл подачи порошковых материалов