ES474200A1 - Procedimiento para mejorar las propiedades de transformacionde poliolefinas en polvo. - Google Patents

Procedimiento para mejorar las propiedades de transformacionde poliolefinas en polvo.

Info

Publication number
ES474200A1
ES474200A1 ES474200A ES474200A ES474200A1 ES 474200 A1 ES474200 A1 ES 474200A1 ES 474200 A ES474200 A ES 474200A ES 474200 A ES474200 A ES 474200A ES 474200 A1 ES474200 A1 ES 474200A1
Authority
ES
Spain
Prior art keywords
improving
gap
powder
polyolefins
powdery
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
Application number
ES474200A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of ES474200A1 publication Critical patent/ES474200A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/08—Making granules by agglomerating smaller particles
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Procedimiento para mejorar las propiedades de transformación de poliolefinas en polvo, caracterizado porque el polvo de poliolefinas se calienta hasta una temperatura comprendida entre 40º C y su punto de fusión, con preferencia entre 80º y 95º C, y a continuación es conducido a la abertura formada por dos elementos, donde se prensa con fuerzas de compresión de 0,1 hasta 10 t/cm, con preferencia de 0,8 hasta 2 t/cm de largo de abertura, y se tritura el material prensado.
ES474200A 1977-10-21 1978-10-13 Procedimiento para mejorar las propiedades de transformacionde poliolefinas en polvo. Expired ES474200A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772747204 DE2747204A1 (de) 1977-10-21 1977-10-21 Verfahren zum verbessern der verarbeitungseigenschaften von pulverfoermigen polyolefinen

Publications (1)

Publication Number Publication Date
ES474200A1 true ES474200A1 (es) 1979-05-16

Family

ID=6021892

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474200A Expired ES474200A1 (es) 1977-10-21 1978-10-13 Procedimiento para mejorar las propiedades de transformacionde poliolefinas en polvo.

Country Status (13)

Country Link
US (1) US4248819A (es)
EP (1) EP0001766A3 (es)
JP (1) JPS5470355A (es)
AR (1) AR219349A1 (es)
AT (1) AT366397B (es)
AU (1) AU518887B2 (es)
BR (1) BR7806924A (es)
CA (1) CA1127819A (es)
DE (1) DE2747204A1 (es)
ES (1) ES474200A1 (es)
IN (1) IN149949B (es)
IT (1) IT1100134B (es)
ZA (1) ZA785906B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434118A (en) 1980-12-23 1984-02-28 Stauffer Chemical Company Compacting polycarbonate and copoly(carbonate/phosphonate) particles
WO1985004365A1 (en) * 1984-03-29 1985-10-10 American Hoechst Corporation Polyethylene molding composition and process
DE3528892A1 (de) * 1985-08-12 1987-02-19 Wacker Chemie Gmbh Verfahren zur verbesserung der weiterverarbeitungseigenschaften von polymeren
US5032338A (en) * 1985-08-19 1991-07-16 Allied-Signal Inc. Method to prepare high strength ultrahigh molecular weight polyolefin articles by dissolving particles and shaping the solution
GB2320456B (en) * 1996-12-18 2001-09-05 Fip Holdings Ltd Polymer processing method
GB2378705B (en) 1998-08-26 2003-03-26 Pvaxx Technologies Ltd PVA-Containing compositions
GB0005016D0 (en) * 2000-03-01 2000-04-26 Jumik Technologies Limited PVA-Containing compositions
DE102004018436B4 (de) * 2004-04-16 2014-07-03 Coperion Gmbh Verfahren sowie Vorrichtung zur Bereitstellung eines Polymer-Granulats
WO2016071817A2 (en) * 2014-11-07 2016-05-12 Sabic Global Technologies B.V. Densified polymer powder, methods of making, methods of using, and articles made therefrom
US20230330896A1 (en) * 2020-07-16 2023-10-19 Manuel Medina Cortes Dry pelletizing process by high impact and compression

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966185C (de) * 1953-04-04 1957-07-11 Basf Ag Verfahren zur Verbesserung der Eigenschaften von Polyaethylen
US3152201A (en) * 1961-01-03 1964-10-06 Du Pont Manufacture of polytetrafluoroethylene powders
US3261900A (en) * 1962-10-24 1966-07-19 Dow Chemical Co Method for enhancing the clarity and gloss of polyethylene film
US3339850A (en) * 1965-09-21 1967-09-05 Allied Chem Pulverized polyethylene
US3617590A (en) * 1966-12-29 1971-11-02 Harry O Neukomm Process for producing thermoplastic filter material
US3663674A (en) * 1969-07-01 1972-05-16 Gulf Research Development Co Densification of poly-alpha-olefins
US3733383A (en) * 1970-07-09 1973-05-15 Ici Ltd Deformation of polymeric materials
JPS5017106B1 (es) * 1970-12-16 1975-06-18
US3822177A (en) * 1971-06-01 1974-07-02 Union Carbide Corp Thermoplastic pellets and method of producing shaped articles therefrom
US3767748A (en) * 1971-07-28 1973-10-23 Kewanee Oil Co Process of extrusion without distortion of extrudate
US4014965A (en) * 1972-11-24 1977-03-29 The Dow Chemical Company Process for scrapless forming of plastic articles
US3988401A (en) * 1973-08-27 1976-10-26 Union Carbide Corporation Compression molding of thermoplastic material

Also Published As

Publication number Publication date
ATA752378A (de) 1981-08-15
EP0001766A2 (de) 1979-05-16
CA1127819A (en) 1982-07-20
IN149949B (es) 1982-06-12
AR219349A1 (es) 1980-08-15
IT7828907A0 (it) 1978-10-19
ZA785906B (en) 1979-10-31
DE2747204A1 (de) 1979-05-03
JPS5470355A (en) 1979-06-06
AU518887B2 (en) 1981-10-22
IT1100134B (it) 1985-09-28
AT366397B (de) 1982-04-13
AU4086678A (en) 1980-04-24
BR7806924A (pt) 1979-07-03
EP0001766A3 (de) 1979-07-11
US4248819A (en) 1981-02-03

Similar Documents

Publication Publication Date Title
CA938364A (en) Method and means for regulating the operation of apparatus for the production and processing of cigarettes or the like
ES474200A1 (es) Procedimiento para mejorar las propiedades de transformacionde poliolefinas en polvo.
ES2007423A6 (es) Procedimiento para la obtencion de polvora de carga propulsora.
ES8703093A1 (es) Procedimiento para la consolidacion previa continua asi como la simultanea conformacion de materiales pulverulentos finamente divididos.
ES479565A1 (es) Procedimiento de compresion para la produccion de suposito- rios.
IT1128741B (it) Procedimento per la produzione di parti di macchine im polvere metallica e prodotto ottenuto
ES381632A1 (es) Procedimiento para la preparacion de carburo de calcio de determinada calidad.
GB944214A (en) Process for the manufacture of foamed structures from plasticized polyvinyl chloridecompositions
CA927065A (en) Method for the continuous production of fibers and apparatus for carrying out such method
ES8400122A1 (es) Procedimiento para la obtencion de nitrocelulosa fluida como la arena.
JPS5222520A (en) Production process of anisotropic crystalline lead
ZA766999B (en) Process and apparatus for the production of objects or articles made from agglomerated ligneous particles
GB980428A (en) Improvements in or relating to methods and apparatus for the continuous transformation of hot reduced iron
JPS57193337A (en) Crosslinking molding extruding machine
JPS5426945A (en) Friction-pressure-welding method for copper and aluminum
GB1196955A (en) Method and Apparatus for treating Plasticizable Materials in a Worm Machine
JPS57118337A (en) Manufacture of magnetron anode
JPS5398301A (en) Molding of highly viscous material with rolls
CA548780A (en) Process for producing solid sulphur having superior grinding properties and the product produced thereby
CA524921A (en) Method and apparatus for the production of articles moulded under pressure and at high temperatures
CA824195A (en) Process for the manufacture of stabilized polytetrafluoroethylene dispersions
CA824732A (en) Process for the manufacture of stabilized polytetrafluoroethylene dispersions
GB1307246A (en) Method and apparatus for processing a macromolecular thermoplastic material
AU226321B2 (en) Process for improving the mechanical and processing properties of linear high polymers of propylene
CA817328A (en) Process and furnace for the manufacture of carbon products