ES2144578T3 - Procedimiento para modificar un polietileno en una extrusora. - Google Patents
Procedimiento para modificar un polietileno en una extrusora.Info
- Publication number
- ES2144578T3 ES2144578T3 ES95305665T ES95305665T ES2144578T3 ES 2144578 T3 ES2144578 T3 ES 2144578T3 ES 95305665 T ES95305665 T ES 95305665T ES 95305665 T ES95305665 T ES 95305665T ES 2144578 T3 ES2144578 T3 ES 2144578T3
- Authority
- ES
- Spain
- Prior art keywords
- extruder
- polyethylene
- perecta
- contacted
- modify
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/06—Oxidation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/50—Partial depolymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
LA PRESENTE INVENCION SE REFIERE A UN PROCESO PARA LA MODIFICACION DE UN POLIETILENO EN UN EXTRUSOR. EL POLIETILENO SE PONE EN CONTACTO CON OXIGENO O UNA MEZCLA DE GAS QUE CONTENGA OXIGENO EN EL EXTRUSOR, EN PRESENCIA OPCIONALMENTE DE UNA CANTIDAD RELATIVAMENTE PEQUEÑA O PREFERENTEMENTE EN AUSENCIA DE UN AGENTE ANTIOXIDANTE A CORTO PLAZO. EL POLIETILENO PUESTO EN CONTACTO DE ESE MODO SE TRATA TERMOMECANICAMENTE EN EL ESTADO FUNDIDO EN EL EXTRUSOR SUMINISTRANDO UNA ENERGIA MECANICA ESPECIFICA RELATIVAMENTE ALTA, EN DONDE EL TRATAMIENTO SE FINALIZA CUANDO EL VALOR DE LA TANGENTE DEL ANGULO DE PERDIDAS DEL POLIETILENO QUE CARACTERIZA SU ESTADO VISCOELASTICO DECRECE UNA PROPORCION DESEADA. EL POLIMERO ASI TRATADO ES PARTICULARMENTE ADECUADO PARA SER TRANSFORMADO EN UNA PELICULA MEDIANTE UNA EXTRUSION POR SOPLADURA CON UN ESTABILIDAD DE BURBUJEO CONSIDERABLEMENTE MAYOR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9410630A FR2723880B1 (fr) | 1994-08-30 | 1994-08-30 | Procede pour modifier un polyethylene dans une extrudeuse |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2144578T3 true ES2144578T3 (es) | 2000-06-16 |
Family
ID=9466705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95305665T Expired - Lifetime ES2144578T3 (es) | 1994-08-30 | 1995-08-14 | Procedimiento para modificar un polietileno en una extrusora. |
Country Status (12)
Country | Link |
---|---|
US (1) | US5739266A (es) |
EP (1) | EP0700769B1 (es) |
JP (1) | JP3766704B2 (es) |
KR (1) | KR100365710B1 (es) |
CA (1) | CA2156894C (es) |
DE (1) | DE69515944T2 (es) |
ES (1) | ES2144578T3 (es) |
FI (1) | FI112494B (es) |
FR (1) | FR2723880B1 (es) |
MY (1) | MY112733A (es) |
NO (1) | NO308953B1 (es) |
ZA (1) | ZA956934B (es) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6454976B1 (en) * | 1996-06-26 | 2002-09-24 | Union Carbide Chemicals & Plastics Technology Corporation | Pelletizing of broad molecular weight polyethylene |
US5728335A (en) * | 1996-06-26 | 1998-03-17 | Union Carbide Chemicals & Plastics Technology Corporation | Process for extrusion |
EP0936049B1 (en) * | 1998-02-13 | 2003-03-05 | Union Carbide Chemicals & Plastics Technology Corporation | A process for extrusion |
US6433133B1 (en) | 1999-11-16 | 2002-08-13 | Eastman Chemical Company | Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products |
JP4814437B2 (ja) * | 2001-04-06 | 2011-11-16 | 株式会社プライムポリマー | 変性ポリエチレン系樹脂の製造方法、変性ポリエチレン系樹脂及びそのフィルム |
US20040236041A1 (en) * | 2001-07-03 | 2004-11-25 | Hiroyuki Higuchi | Polyethylene type resin and method for producing the same, and inflation film using the same as base material |
US20050012235A1 (en) * | 2001-11-30 | 2005-01-20 | Schregenberger Sandra D | Oxygen tailoring of polyethylene resins |
EP1517926B1 (en) * | 2002-07-03 | 2008-07-23 | ExxonMobil Chemical Patents Inc. | Oxygen tailoring of polyethylene film resins |
TW200504093A (en) | 2003-05-12 | 2005-02-01 | Dow Global Technologies Inc | Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom |
US6878454B1 (en) * | 2003-12-05 | 2005-04-12 | Univation Technologies, Llc | Polyethylene films |
US7432328B2 (en) * | 2005-06-14 | 2008-10-07 | Univation Technologies, Llc | Enhanced ESCR bimodal HDPE for blow molding applications |
US7892466B2 (en) * | 2004-08-19 | 2011-02-22 | Univation Technologies, Llc | Oxygen tailoring of polyethylene resins |
US8202940B2 (en) * | 2004-08-19 | 2012-06-19 | Univation Technologies, Llc | Bimodal polyethylene compositions for blow molding applications |
US20060038315A1 (en) * | 2004-08-19 | 2006-02-23 | Tunnell Herbert R Iii | Oxygen tailoring of polyethylene resins |
US7285617B2 (en) | 2004-10-08 | 2007-10-23 | Exxonmobil Chemical Patents Inc. | Oxygen tailoring of polyethylene blow molding resins |
KR101224323B1 (ko) | 2004-12-17 | 2013-01-21 | 다우 글로벌 테크놀로지스 엘엘씨 | 레올로지 개질된 폴리에틸렌 조성물 |
US20070049711A1 (en) | 2005-09-01 | 2007-03-01 | Chi-I Kuo | Catalyst compositions comprising support materials having an improved particle-size distribution |
DE102006004705A1 (de) * | 2006-01-31 | 2007-08-02 | Basell Polyolefine Gmbh | Verfahren zur Herstellung von Ethylenpolymerisaten für Blasfolien |
AU2007225248B2 (en) * | 2006-03-10 | 2012-04-19 | Dow Global Technologies Llc | Polyethylene resins for sheet and thermoforming applications |
KR100727599B1 (ko) * | 2006-04-28 | 2007-06-14 | 이규동 | 이중 차단 시스템을 갖는 수위조절장치 및 그 제어방법,그리고 이를 이용한 정수기 |
US7754834B2 (en) | 2007-04-12 | 2010-07-13 | Univation Technologies, Llc | Bulk density promoting agents in a gas-phase polymerization process to achieve a bulk particle density |
US20110178262A1 (en) * | 2010-01-19 | 2011-07-21 | Dow Global Technologies LLC (Formerly known as Dow Global Technologies Inc.) | Method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process |
JP5895482B2 (ja) * | 2011-11-30 | 2016-03-30 | 東ソー株式会社 | エチレン系重合体組成物 |
JP6047953B2 (ja) * | 2011-11-30 | 2016-12-21 | 東ソー株式会社 | オレフィン系樹脂加工性改質材およびその製造方法 |
WO2013137953A1 (en) | 2012-03-15 | 2013-09-19 | Exxonmobil Chemical Patents Inc. | Oxygen tailoring of polyethylene |
CN108884186B (zh) | 2016-03-23 | 2020-12-25 | 埃克森美孚化学专利公司 | 梳状-嵌段高密度聚乙烯及其制造方法 |
RU2020134374A (ru) | 2018-04-27 | 2022-04-20 | Дау Глоубл Текнолоджиз Ллк | Невспененные полиолефиновые композиции для покрытия проводов и кабелей |
CN109435103A (zh) * | 2018-12-12 | 2019-03-08 | 张家港永和包装印务有限公司 | 一种包装纸淋膜用的加热装置 |
WO2021086767A1 (en) | 2019-10-28 | 2021-05-06 | Univation Technologies, Llc | Method of increasing bubble stability of a polyethylene resin |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE219789C (es) * | ||||
US3551943A (en) * | 1966-12-19 | 1971-01-05 | Exxon Research Engineering Co | Controlled degradation |
US3608001A (en) * | 1969-08-26 | 1971-09-21 | Exxon Research Engineering Co | Controlled degradation of polypropylene in extruder-reactor |
US3563972A (en) * | 1969-10-15 | 1971-02-16 | Exxon Research Engineering Co | Low melt elasticity composition of polypropylene |
US3898209A (en) * | 1973-11-21 | 1975-08-05 | Exxon Research Engineering Co | Process for controlling rheology of C{HD 3{B {30 {0 polyolefins |
JPS5231269B2 (es) * | 1974-06-13 | 1977-08-13 | ||
JPS59166507A (ja) * | 1983-03-12 | 1984-09-19 | Nissan Chem Ind Ltd | 中空成形用樹脂の製造方法 |
DD219789A1 (de) * | 1983-12-13 | 1985-03-13 | Leuna Werke Veb | Erhoehung der molmasse von ethylen-vinylacetat-copolymeren |
FR2598350B1 (fr) * | 1986-05-06 | 1989-11-17 | Bp Chimie Sa | Procede et dispositif pour degazer et pour transformer en granules des particules de polyolefines obtenues par polymerisation en phase gazeuse |
-
1994
- 1994-08-30 FR FR9410630A patent/FR2723880B1/fr not_active Expired - Fee Related
-
1995
- 1995-08-14 ES ES95305665T patent/ES2144578T3/es not_active Expired - Lifetime
- 1995-08-14 EP EP95305665A patent/EP0700769B1/en not_active Revoked
- 1995-08-14 DE DE69515944T patent/DE69515944T2/de not_active Expired - Lifetime
- 1995-08-16 US US08/515,830 patent/US5739266A/en not_active Expired - Lifetime
- 1995-08-18 ZA ZA9506934A patent/ZA956934B/xx unknown
- 1995-08-24 CA CA002156894A patent/CA2156894C/en not_active Expired - Lifetime
- 1995-08-29 NO NO953384A patent/NO308953B1/no unknown
- 1995-08-30 MY MYPI95002586A patent/MY112733A/en unknown
- 1995-08-30 JP JP22242595A patent/JP3766704B2/ja not_active Expired - Lifetime
- 1995-08-30 KR KR1019950027758A patent/KR100365710B1/ko active IP Right Grant
- 1995-08-30 FI FI954063A patent/FI112494B/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI954063A (fi) | 1996-03-02 |
JP3766704B2 (ja) | 2006-04-19 |
DE69515944D1 (de) | 2000-05-04 |
FR2723880A1 (fr) | 1996-03-01 |
EP0700769B1 (en) | 2000-03-29 |
KR100365710B1 (ko) | 2003-02-25 |
KR960007154A (ko) | 1996-03-22 |
MY112733A (en) | 2001-08-30 |
US5739266A (en) | 1998-04-14 |
EP0700769A3 (en) | 1996-03-20 |
NO953384D0 (no) | 1995-08-29 |
FR2723880B1 (fr) | 1997-01-03 |
FI112494B (fi) | 2003-12-15 |
FI954063A0 (fi) | 1995-08-30 |
JPH0890633A (ja) | 1996-04-09 |
DE69515944T2 (de) | 2000-08-17 |
NO953384L (no) | 1996-03-01 |
CA2156894C (en) | 2006-06-20 |
CA2156894A1 (en) | 1996-03-01 |
NO308953B1 (no) | 2000-11-20 |
EP0700769A2 (en) | 1996-03-13 |
ZA956934B (en) | 1997-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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