CO4900086A1 - Pacas de tamices para reducir geles en copolimeros de poli- propileno - Google Patents

Pacas de tamices para reducir geles en copolimeros de poli- propileno

Info

Publication number
CO4900086A1
CO4900086A1 CO97070820A CO97070820A CO4900086A1 CO 4900086 A1 CO4900086 A1 CO 4900086A1 CO 97070820 A CO97070820 A CO 97070820A CO 97070820 A CO97070820 A CO 97070820A CO 4900086 A1 CO4900086 A1 CO 4900086A1
Authority
CO
Colombia
Prior art keywords
baces
screen
polypropylene copolymers
reduce gels
gels
Prior art date
Application number
CO97070820A
Other languages
English (en)
Inventor
Robert Blakeslee
David Khanin
Richard H Bozenbury Jr
Original Assignee
Union Carbide Chem Plastic
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=25032762&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CO4900086(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Carbide Chem Plastic filed Critical Union Carbide Chem Plastic
Publication of CO4900086A1 publication Critical patent/CO4900086A1/es

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
    • 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
    • B29C48/69—Filters or screens for the moulding material
    • 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
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2725—Cleaning; Purging; Avoiding contamination of filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Filtering Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

El presente invento suministra un sistema de extrusióncontinuo para combinar copolímeros de impacto de propileno el cual utiliza pacas de filtros de tamiz de varias mallas para reducir el número y el tamaño de geles en los copolímeros PP. Esta reducción resulta en un mejoramiento de las propiedades del copolímero resultante, especialmente en la resistencia de Impacto Gardner. Este invento suministra una paca de filtro de tamiz relativamente gruesa de múltiples capas, para dispersar geles y prevenir el cegado de las aperturas del filtro, para incrementar la velocidad de procesamiento de material del filtro y para preservar la habilidad de los filtros en dispersar bien los polímeros. El filtro de tamiz puedes ser aplicado durante la fabricación inicial de los copolímeros de impacto PP, o en el procesamiento tardío de los copolímeros de impacto, particularmente un método para disminuir la cantidad de geles poliméricos en mezclas de polipropileno, que comprende por lo menos dos polímeros de polipropileno, que comprende pasar la mezcla a través de una pluralidad de filtros de tamices de 44 hasta 900 µm para reducir el número y tamaño de geles en la mezcla de polipropileno.
CO97070820A 1996-12-03 1997-12-03 Pacas de tamices para reducir geles en copolimeros de poli- propileno CO4900086A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/753,932 US5730885A (en) 1996-12-03 1996-12-03 Screen packs for reducing gels in polypropylene copolymers

Publications (1)

Publication Number Publication Date
CO4900086A1 true CO4900086A1 (es) 2000-03-27

Family

ID=25032762

Family Applications (1)

Application Number Title Priority Date Filing Date
CO97070820A CO4900086A1 (es) 1996-12-03 1997-12-03 Pacas de tamices para reducir geles en copolimeros de poli- propileno

Country Status (11)

Country Link
US (1) US5730885A (es)
EP (1) EP0942951B1 (es)
JP (1) JP3244711B2 (es)
AT (1) ATE199925T1 (es)
CA (1) CA2273947C (es)
CO (1) CO4900086A1 (es)
DE (1) DE69704376T2 (es)
ES (1) ES2159407T3 (es)
ID (1) ID17725A (es)
PT (1) PT942951E (es)
WO (1) WO1998024843A1 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6110251A (en) * 1998-11-03 2000-08-29 Johns Manville International, Inc. Gas filtration media and method of making the same
DE19854285A1 (de) 1998-11-25 2000-05-31 Targor Gmbh Verfahren zur peroxidischen Behandlung von Olefinpolymerisaten
US7393916B2 (en) * 2005-11-01 2008-07-01 Univation Technologies, Llc Method of reducing gels in polyolefins
US20080268244A1 (en) * 2007-04-30 2008-10-30 Doufas Antonios K Impact copolymers having improved properties
DE112008001952T5 (de) * 2007-07-26 2010-06-02 Sumitomo Chemical Co., Ltd. Verfahren zur Herstellung einer Polyolefinharzzusammensetzung
JP2010023464A (ja) * 2008-07-24 2010-02-04 Sumitomo Chemical Co Ltd ポリオレフィン系樹脂組成物の製造方法及びこれに用いる濾過装置
JP4945676B2 (ja) * 2010-11-12 2012-06-06 株式会社神戸製鋼所 ゲル低減装置及びゲル低減方法
JP5188588B2 (ja) * 2011-03-11 2013-04-24 株式会社神戸製鋼所 ゲル低減方法
CN103189175B (zh) * 2010-11-12 2016-02-10 株式会社神户制钢所 凝胶降低装置以及凝胶降低方法
MX362519B (es) * 2010-12-20 2019-01-21 Braskem America Inc Composiciones a base de propileno con aspecto mejorado y excelente fluidez en el molde.
BR112013028810B1 (pt) 2011-05-10 2020-11-24 Basell Polyolefine Gmbh Processo para homogeneizaqao e peletizaqao de uma composiçao de polietileno, uso de uma composiçao de polietileno obtida por tal processo e produtos preparados a partir de tal composiçao
CA2847628A1 (en) 2014-03-28 2015-09-28 Nova Chemicals Corporation Improved extrusion process
CN107000295B (zh) 2014-11-19 2019-12-06 埃克森美孚化学专利公司 用于减少凝胶的结构元件以及凝胶减少装置和方法
WO2016118566A1 (en) 2015-01-21 2016-07-28 Univation Technologies, Llc Methods for gel reduction in polyolefins
EP3389984B1 (en) 2015-12-16 2021-12-15 ExxonMobil Chemical Patents Inc. Device and process for processing polyolefin polymers
US11383416B2 (en) 2015-12-16 2022-07-12 Exxonmobil Chemical Patents Inc. Devices, systems, and processes for processing polymers
WO2018144139A1 (en) 2017-02-03 2018-08-09 Exxonmobil Chemical Patents Inc. Methods for making polyethylene polymers
CN111373519B (zh) * 2017-11-16 2021-11-23 应用材料公司 高压蒸气退火处理设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125107A (en) * 1964-03-17 Search room
US1818549A (en) * 1929-03-21 1931-08-11 Thames Silk Company Apparatus and method for spinning fibers in precipitating baths
US3154610A (en) * 1961-05-31 1964-10-27 Celanese Corp Process of wet spinning polyamides and prevention of gel formation
US3233288A (en) * 1963-03-21 1966-02-08 Pennsalt Chemicals Corp Molding apparatus
US3215760A (en) * 1962-11-27 1965-11-02 Du Pont Process of a voiding gel particles during extrusion by removal of air from the filter pack prior to spinning
US4175147A (en) * 1976-10-05 1979-11-20 Allied Chemical Corporation Method to reduce deposits of terephthalic acid on cooling rolls during sheet extrusion of amorphous polyethylene terephthalate
US4334783A (en) * 1978-12-21 1982-06-15 Showa Denko Kabushiki Kaisha Mixing device
US4316867A (en) * 1979-10-10 1982-02-23 Eastman Kodak Company Process for removing impurities from polymer solutions
US4661249A (en) * 1985-01-28 1987-04-28 Metallurgical Industries, Inc. Prefilter device for polymeric material
US4681721A (en) * 1985-11-06 1987-07-21 Mobil Oil Corporation Thermoplastic film extrusion process employing die with filtering arrangement
US4822547A (en) * 1987-04-06 1989-04-18 Shell Oil Company Process for the extrusion of compositions comprising polypropylene, polyvinyl alcohol and a polypropylene-polyvinyl alcohol adhesive
US5076988A (en) * 1990-03-09 1991-12-31 Union Carbide Chemicals And Plastics Technology Corporation Process for the extrusion of low density polyethylene
US5414034A (en) * 1993-03-29 1995-05-09 General Electric Company Processing stabilizer formulations
EP0629479B1 (en) * 1993-06-16 1999-02-10 Union Carbide Chemicals And Plastics Company, Inc. Apparatus and process for continuously pelletizing synthetic thermoplastic materials

Also Published As

Publication number Publication date
PT942951E (pt) 2001-08-30
DE69704376D1 (de) 2001-04-26
ATE199925T1 (de) 2001-04-15
DE69704376T2 (de) 2001-10-25
CA2273947C (en) 2008-03-18
JP3244711B2 (ja) 2002-01-07
EP0942951B1 (en) 2001-03-21
CA2273947A1 (en) 1998-06-11
WO1998024843A1 (en) 1998-06-11
EP0942951A1 (en) 1999-09-22
US5730885A (en) 1998-03-24
JP2000511967A (ja) 2000-09-12
ES2159407T3 (es) 2001-10-01
ID17725A (id) 1998-01-22

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