GB871397A - Improvements in or relating to propylene polymers and their preparation - Google Patents

Improvements in or relating to propylene polymers and their preparation

Info

Publication number
GB871397A
GB871397A GB36985/57A GB3698557A GB871397A GB 871397 A GB871397 A GB 871397A GB 36985/57 A GB36985/57 A GB 36985/57A GB 3698557 A GB3698557 A GB 3698557A GB 871397 A GB871397 A GB 871397A
Authority
GB
United Kingdom
Prior art keywords
extraction
polypropylene
solvent
polymer
propylene
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
GB36985/57A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB871397A publication Critical patent/GB871397A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/04Fractionation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/26Treatment of polymers prepared in bulk also solid polymers or polymer melts
    • C08F6/28Purification
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
GB36985/57A 1956-12-04 1957-11-27 Improvements in or relating to propylene polymers and their preparation Expired GB871397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT871397X 1956-12-04

Publications (1)

Publication Number Publication Date
GB871397A true GB871397A (en) 1961-06-28

Family

ID=11330760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36985/57A Expired GB871397A (en) 1956-12-04 1957-11-27 Improvements in or relating to propylene polymers and their preparation

Country Status (3)

Country Link
BE (1) BE562918A (enrdf_load_html_response)
FR (1) FR1195259A (enrdf_load_html_response)
GB (1) GB871397A (enrdf_load_html_response)

Also Published As

Publication number Publication date
BE562918A (enrdf_load_html_response)
FR1195259A (fr) 1959-11-16

Similar Documents

Publication Publication Date Title
US2744074A (en) Polymeric organic aluminum oxides and method for preparing same
GB997761A (en) Improvements relating to zirconium base alloys
GB871397A (en) Improvements in or relating to propylene polymers and their preparation
Chodák et al. Crosslinking of polypropylene in the presence of polyfunctional monomers
US2974132A (en) Purification of polyethylene with alkylene oxides
ES279031A1 (es) Un procedimiento para preparar copolímeros de etileno
GB908988A (en) Organosiloxane compositions for the treatment of paper
GB731728A (en) Improved polythene compositions and articles thereof
GB832996A (en) Improvements in the working up of low pressure polyolefines
US3366561A (en) Ionizing irradiation polymerization of trioxane with copolymerizable stabilizing comonomers
ES386497A1 (es) Procedimiento para polimerizar alfaolefinas.
GB1020812A (en) Process for producing trioxane
US2933484A (en) Treatment of polyolefins
US2476609A (en) Manufacture of condensation products
ES238924A1 (es) MÉTODO DE PREPARACION DE POLIMEROS ISOTáCTICOS Y LINEALES DE PROPILENO
US3198779A (en) Process of producing low molecular weight hydrocarbon resins
US3235539A (en) Polymers of vinyl esters of branched chain copolymeric acids
ES269760A1 (es) Un procedimiento para preparar polimeros de isopropenilpiridinas
US2276596A (en) Polymerization of styrene and its homologs
ES376523A1 (es) Metodo de lubricacion.
GB853010A (en) Method of preparing high molecular weight linear hydrocarbon polymers
GB1119755A (en) Process for the after-treatment of polypivalolactone articles
GB949087A (en) Production of cyanuric acid
ES282326A1 (es) Un procedimiento para la preparación de un polímero cristalino sólido a partir de las alfa-mono-olefinas etileno y propileno
GB593097A (en) Improvements in and relating to poly-n-vinyl carbazole products