GR3030157T3 - Extrusion apparatus and method and extruded thermoplastic polymer - Google Patents

Extrusion apparatus and method and extruded thermoplastic polymer

Info

Publication number
GR3030157T3
GR3030157T3 GR990401245T GR990401245T GR3030157T3 GR 3030157 T3 GR3030157 T3 GR 3030157T3 GR 990401245 T GR990401245 T GR 990401245T GR 990401245 T GR990401245 T GR 990401245T GR 3030157 T3 GR3030157 T3 GR 3030157T3
Authority
GR
Greece
Prior art keywords
pct
thermoplastic polymer
extrusion apparatus
extruded thermoplastic
sec
Prior art date
Application number
GR990401245T
Other languages
English (en)
Inventor
Raymond Leslie Jack
Original Assignee
British Tech Group Int
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 British Tech Group Int filed Critical British Tech Group Int
Publication of GR3030157T3 publication Critical patent/GR3030157T3/el

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/625Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0017Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/301Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/507Screws characterised by the material or their manufacturing process
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • B29C48/288Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2029/00Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16Fillers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Seal Device For Vehicle (AREA)
  • Paper (AREA)
GR990401245T 1994-08-03 1999-05-06 Extrusion apparatus and method and extruded thermoplastic polymer GR3030157T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9415720A GB9415720D0 (en) 1994-08-03 1994-08-03 Extrusion and moulding apparatus and method
PCT/GB1995/001845 WO1996004121A2 (en) 1994-08-03 1995-08-03 Extrusion apparatus and method and extruded thermoplastic polymer

Publications (1)

Publication Number Publication Date
GR3030157T3 true GR3030157T3 (en) 1999-08-31

Family

ID=10759369

Family Applications (1)

Application Number Title Priority Date Filing Date
GR990401245T GR3030157T3 (en) 1994-08-03 1999-05-06 Extrusion apparatus and method and extruded thermoplastic polymer

Country Status (21)

Country Link
US (1) US6080346A (el)
EP (1) EP0773864B1 (el)
JP (1) JPH10503723A (el)
KR (1) KR100364162B1 (el)
CN (1) CN1065476C (el)
AT (1) ATE177361T1 (el)
AU (1) AU686429B2 (el)
BR (1) BR9508516A (el)
CA (1) CA2194464A1 (el)
CZ (1) CZ26697A3 (el)
DE (1) DE69508253T2 (el)
DK (1) DK0773864T3 (el)
ES (1) ES2129214T3 (el)
GB (2) GB9415720D0 (el)
GR (1) GR3030157T3 (el)
HK (1) HK1001282A1 (el)
MY (1) MY114102A (el)
NZ (1) NZ290885A (el)
SK (1) SK282981B6 (el)
WO (1) WO1996004121A2 (el)
ZA (1) ZA956496B (el)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100574183B1 (ko) * 1998-09-25 2006-04-27 스미또모 가가꾸 가부시키가이샤 취입 성형 다이 및 취입 필름의 제조방법
GB0002339D0 (en) 2000-02-02 2000-03-22 Crompton J R Plc Beverage infusion packages and materials therefor
FR2831478B1 (fr) * 2001-10-25 2007-01-26 Multibase Procede de production d'une composition thermoplastique a base d'alcool polyvinylique exempte d'infondus et de degradation
DE10241466B4 (de) * 2001-12-14 2006-05-24 Henkel Kgaa Inline Blenden und Formgeben wasserlöslicher Polymere
EP1565256A4 (en) * 2002-09-13 2008-05-07 Glaxo Group Ltd COATED MIXING DEVICE
US7052260B1 (en) * 2003-06-18 2006-05-30 Extrutech International, Inc. Polymer processing system including decompression chamber and method for using same
US7318720B2 (en) * 2003-08-07 2008-01-15 Arunas Antanas Pabedinskas Die assembly and production process for profile extrusion
GB2409204A (en) * 2003-12-19 2005-06-22 Reckitt Benckiser Nv Plasticized thermoplastic polymer
JP4760268B2 (ja) * 2005-09-28 2011-08-31 東レ株式会社 樹脂材料の溶融押出方法
CN101955054A (zh) * 2009-07-16 2011-01-26 江苏中兴化工设备有限公司 一种耐高温溢流螺旋排灰机
US8709315B2 (en) * 2009-08-18 2014-04-29 Exxonmobil Chemical Patents Inc. Process for making thermoplastic polymer pellets
JP5087654B2 (ja) * 2010-04-28 2012-12-05 東芝機械株式会社 成形機の自動昇温制御方法
EP2588288B1 (en) 2010-07-02 2015-10-28 The Procter and Gamble Company Process for making films from nonwoven webs
MX2012015174A (es) 2010-07-02 2013-05-09 Procter & Gamble Filamentos que comprenden un agente activo, tramas de tela no tejida y métodos para elaborarlos.
RU2555042C2 (ru) 2010-07-02 2015-07-10 Дзе Проктер Энд Гэмбл Компани Способ доставки активнодействующего вещества
JP5792297B2 (ja) 2010-07-02 2015-10-07 ザ プロクター アンド ギャンブルカンパニー 洗剤製品
US8556621B2 (en) * 2011-02-09 2013-10-15 Pepsico, Inc. Extrusion blow molding apparatus for preparing polyester articles
US20130078328A1 (en) * 2011-09-27 2013-03-28 Kennametal, Inc. Coated Pelletizing Dies
CN102634060A (zh) * 2012-04-28 2012-08-15 中胶橡胶资源再生有限公司 自洁式可控温度场废橡胶网构重建装置
FI129682B (en) * 2016-08-26 2022-06-30 Teknologian Tutkimuskeskus Vtt Oy Single screw extruder and method
CN107683831B (zh) * 2017-09-21 2020-09-18 安徽宏飞钓具有限公司 一种仿真鱼饵制造机
CN111556891B (zh) 2018-01-26 2021-11-05 宝洁公司 包含酶的水溶性单位剂量制品
KR20200085891A (ko) 2018-01-26 2020-07-15 더 프록터 앤드 갬블 캄파니 향료를 포함하는 수용성 단위 용량 물품
WO2019147523A1 (en) 2018-01-26 2019-08-01 The Procter & Gamble Company Water-soluble articles and related processes
WO2019147532A1 (en) 2018-01-26 2019-08-01 The Procter & Gamble Company Water-soluble unit dose articles comprising perfume
WO2019168829A1 (en) 2018-02-27 2019-09-06 The Procter & Gamble Company A consumer product comprising a flat package containing unit dose articles
US10982176B2 (en) 2018-07-27 2021-04-20 The Procter & Gamble Company Process of laundering fabrics using a water-soluble unit dose article
WO2020159860A1 (en) 2019-01-28 2020-08-06 The Procter & Gamble Company Recycleable, renewable, or biodegradable package
EP3712237A1 (en) 2019-03-19 2020-09-23 The Procter & Gamble Company Fibrous water-soluble unit dose articles comprising water-soluble fibrous structures
CA3134222C (en) 2019-06-28 2024-01-16 The Procter & Gamble Company Dissolvable solid fibrous articles containing anionic surfactants
CN115867357A (zh) 2020-07-31 2023-03-28 宝洁公司 用于毛发护理的含有球粒的水溶性纤维小袋
CN116750415B (zh) * 2023-08-24 2023-11-17 旭化研(通化)新材料有限公司 一种用于连续生产oca胶的装置及方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB770705A (en) * 1954-04-02 1957-03-20 Us Rubber Co Improvements in extruders for plastic material
FR1284924A (fr) * 1961-03-24 1962-02-16 Trelleborgs Gummifabriks Ab Perfectionnements apportés aux extrudeuses pour matières plastiques ou caoutchouteuses
CH468795A (fr) * 1967-04-14 1969-02-28 Nestle Sa Procédé de fabrication d'extraits de matières végétales
US3564651A (en) * 1968-04-29 1971-02-23 Du Pont Non-stick fluorocarbon resin-surfaced mixing element
US3607812A (en) * 1968-12-17 1971-09-21 Denki Kagaku Kogyo Kk Method of manufacturing polyvinyl alcohol films and product
US3645659A (en) * 1969-03-13 1972-02-29 Gloucester Eng Co Inc Extruding plastic
FR2145456A1 (en) * 1971-07-15 1973-02-23 Package Machinery Co Internally heated extruder screw - prevents adhesion of material to screw
FR2224284A1 (el) * 1973-04-07 1974-10-31 Berstorff Gmbh Masch Hermann
US4309115A (en) * 1980-05-14 1982-01-05 Imrich Klein Method and apparatus for improved solids conveying in plasticating extruders
JPS5881147A (ja) * 1981-10-29 1983-05-16 ユニオン・カ−バイド・コ−ポレ−シヨン 線状ポリオレフイン材料の押出方法
JPS5894432A (ja) * 1981-11-28 1983-06-04 バスフ アクチエンゲゼルシヤフト ビニルアルコ−ル重合体から平面状成形体を製造する方法
US4713290A (en) * 1982-09-30 1987-12-15 Allied Corporation High strength and modulus polyvinyl alcohol fibers and method of their preparation
US4478971A (en) * 1983-07-08 1984-10-23 Shakespeare Company High temperature extruded polyvinyl alcohol monofilament and process for the preparation thereof
JPS63165509A (ja) * 1986-12-27 1988-07-08 Unitika Ltd 高結晶融解エネルギ−ポリビニルアルコ−ル繊維及びその製造法
JP2588579B2 (ja) * 1988-04-21 1997-03-05 株式会社クラレ 耐熱水性にすぐれたポリビニルアルコール系繊維およびその製造法
EP0532037A1 (en) * 1991-09-13 1993-03-17 Mizu Systems, Incorporated Tubing and hollow fibers comprising non-crosslinked polyvinyl alcohol hydrogels and method for preparing same
GB2282100A (en) * 1992-04-23 1995-03-29 British Tech Group Int Polymeric articles and materials
GB9307417D0 (en) * 1993-04-08 1993-06-02 Castings Technology Int Mixing

Also Published As

Publication number Publication date
MY114102A (en) 2002-08-30
CA2194464A1 (en) 1996-02-15
EP0773864A2 (en) 1997-05-21
NZ290885A (en) 1998-06-26
CZ26697A3 (en) 1997-10-15
GB9515944D0 (en) 1995-10-04
GB9415720D0 (en) 1994-09-21
GB2291831B (en) 1997-06-18
ATE177361T1 (de) 1999-03-15
CN1154674A (zh) 1997-07-16
AU686429B2 (en) 1998-02-05
CN1065476C (zh) 2001-05-09
DK0773864T3 (da) 1999-09-27
SK11297A3 (en) 1997-07-09
ZA956496B (en) 1997-02-03
GB2291831A (en) 1996-02-07
US6080346A (en) 2000-06-27
DE69508253D1 (de) 1999-04-15
SK282981B6 (sk) 2003-01-09
ES2129214T3 (es) 1999-06-01
DE69508253T2 (de) 1999-07-08
KR100364162B1 (ko) 2003-05-09
JPH10503723A (ja) 1998-04-07
KR970704563A (ko) 1997-09-06
EP0773864B1 (en) 1999-03-10
WO1996004121A3 (en) 1996-04-25
AU3184195A (en) 1996-03-04
HK1001282A1 (en) 1998-06-12
BR9508516A (pt) 1997-12-23
WO1996004121A2 (en) 1996-02-15

Similar Documents

Publication Publication Date Title
GR3030157T3 (en) Extrusion apparatus and method and extruded thermoplastic polymer
ATE250980T1 (de) System und verfahren zur herstellung von formteilen
MY121204A (en) Synthetic wood meal,method and apparatus for manufacturing the same;synthetic wood board including the synthetic wood meal,method and apparatus of extrusion molding therefor
PL328306A1 (en) Method of and apparatus for heating up and cross-linking the polymers
GB2286796B (en) Device and process for the preparation of cellulose sheet
DE59703819D1 (de) Verfahren zur herstellung von thermoplasten
BR9813383B1 (pt) processo para preparaÇço de laminados brilhantes, emprego do laminado e objeto de massas termoplÁsticas moldadas.
AU7158491A (en) Method and apparatus for delivering molten polymer to an extrusion die
AU4289396A (en) Method and apparatus of recycling previously used agricultural plastic film mulch
PH17463A (en) Method and apparatus for the continuous extrusion and blowing of thin films of plastic material in particular rigid p.v.c.
BG100832A (en) Extrusion of thermally cross-linking materials
PT1102810E (pt) Polimeros e plasticos com efeito aromatico prolongado e sua utilizacao
ATE142545T1 (de) Gesenkformen von metallblechmaterialien
ZA972450B (en) Extruding thin multiphase polymer films
ATE234376T1 (de) Superabsorbierende fasern und folien und verfahren zu ihrer herstellung
TW355157B (en) A method of connecting thin board and apparatus of the same
DE59402673D1 (de) Verfahren zum extrudieren und beschichten von nahrungsmitteln, sowie vorrichtung zu dessen durchführung
EP0668594A3 (en) Electrically conductive polymer and process for its preparation.
Jack Extrusion and moulding apparatus and method
DE69314404D1 (de) Vorrichtung zur thermischen Konditionierung von Druckwalzen zur Behandlung erwärmter Kunststoffolien
EP0830927A3 (en) Process and associated apparatus for cutting extruded plastic material into pellets by means of a water jet
TW340096B (en) Rapid molding system and method
ATE211055T1 (de) Verfahren und vorrichtung zur herstellung von bandförmigen kunstoffolien
KR910016453A (ko) 폐기물을 이용한 바이다의 제조방법
MX9705835A (es) Procesamiento de cuero sin curtir de rumiantes domesticados.