EP2222731A1 - Articles moulés transparents - Google Patents

Articles moulés transparents

Info

Publication number
EP2222731A1
EP2222731A1 EP08862861A EP08862861A EP2222731A1 EP 2222731 A1 EP2222731 A1 EP 2222731A1 EP 08862861 A EP08862861 A EP 08862861A EP 08862861 A EP08862861 A EP 08862861A EP 2222731 A1 EP2222731 A1 EP 2222731A1
Authority
EP
European Patent Office
Prior art keywords
propylene
hexene
propylene copolymer
clarifying agent
moulded article
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.)
Withdrawn
Application number
EP08862861A
Other languages
German (de)
English (en)
Inventor
Claudio Cavalieri
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.)
Basell Poliolefine Italia SRL
Original Assignee
Basell Poliolefine Italia SRL
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 Basell Poliolefine Italia SRL filed Critical Basell Poliolefine Italia SRL
Priority to EP08862861A priority Critical patent/EP2222731A1/fr
Publication of EP2222731A1 publication Critical patent/EP2222731A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/04—Monomers containing three or four carbon atoms
    • C08F210/06—Propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0091—Complexes with metal-heteroatom-bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/156—Heterocyclic compounds having oxygen in the ring having two oxygen atoms in the ring
    • C08K5/1575—Six-membered rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds

Definitions

  • a moulded article comprising a propylene copolymer comprising propylene and hexene-1 as comonomers and a clarifying agent, said propylene copolymer characterized by (percentages by weight referred to the total weight of the copolymer): a) a content of hexene-1 ranging from 1.5 to 6 %wt, preferably from 2 to 5 %wt, more preferably from 2.5 to 4 %wt; b) a MFR value according to ISO 1133 ranging from 15 to 45 g/10min, preferably from 20 to 35 g/10 min; and c) a xylene soluble fraction ranging from 1 to 5 %wt, preferably from 2 to 4 %wt.
  • the values of Polydispersity Index determined with the rhelogical method described in the characterization section approximately range from 2 to 10, preferably from 3 to 6.
  • ⁇ show a surface area (by B.E.T. method) generally between 20 and 500 m 2 /g and preferably between 50 and 400 m /g, and a total porosity (by B.E.T. method) higher than 0.2 cm 3 /g preferably between 0.2 and 0.6 cm 3 /g.
  • the porosity (Hg method) due to pores with radius up to lO.OOOA generally ranges from 0.3 to 1.5 cm /g, preferably from 0.45 to 1 cm /g.
  • the organo -aluminum compound is preferably an alkyl-Al selected from the trialkyl aluminum compounds such as for example triethylaluminum, triisobutylaluminum, tri-n- butylaluminum, tri-n-hexylaluminum, tri-n-octylaluminum. It is also possible to use mixtures of trialkylaluminum's with alkylaluminum halides, alkylaluminum hydrides or alkylaluminum sesquichlorides such as AlEt 2 Cl and Al 2 Et 3 Cl 3 .
  • propylene-hexene-1 polymers can be produced by a well- known polymerisation process.
  • such polymers are produced by a polymerisation process carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerisation zones.
  • the process according to the preferred polymerisation process is illustrated in EP782587. In detail, the process is carried out in a first and in a second interconnected polymerization zones into which propylene and hexene-1 are fed in the presence of a catalyst system and from which the polymer produced is discharged.
  • the growing polymer particles flow upward through one (first) of the said polymerisation zones (riser) under fast fiuidisation conditions, leave said riser and enter another (second) polymerisation zone (downcomer) through which they flow downward in a densif ⁇ ed form under the action of gravity, leave said downcomer and are reintroduced into the riser, thus establishing a circulation of polymer between the riser and the downcomer.
  • high values of density of the solid are reached, which approach the bulk density of the polymer.
  • a positive gain in pressure can thus be obtained along the direction of flow, so that it becomes possible to reintroduce the polymer into the riser without the help of special mechanical means.
  • a "loop" circulation is set up, which is defined by the balance of pressures between the two polymerisation zones and by the head loss introduced into the system.
  • the propylene-hexene-1 polymers of the present invention are then blended with at least one clarifying agent.
  • clarifying agents are 3,4-dimethyldibenzylidenesorbitol; aluminum-hydroxy-bis[2,2 '-methylene -bis(4,6-di-t-butylphenyl)phosphate]; sodium 2,2'- methylene-bis(4,6-ditertbutylphenyl)phosphate and other clarifying agents different from sorbitols and phosphate ester salts such as N,N',N"-tris-isopentyl-l,3,5-benzene- tricarboxoamide, bicyclo[2.2.1]heptane-2,3-dicarboxylic acid disodium or calcium salt

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)

Abstract

L'invention concerne un article moulé très transparent comprenant un copolymère du propylène qui comprend du hex-1-ène en tant que comonomère et un agent de clarification, ledit copolymère du propylène étant caractérisé par : a) une teneur en hex-1-ène comprise entre 1,5 et 6 % en poids par rapport au poids total du copolymère ; b) une valeur de MFR selon la norme ISO 1133 comprise entre 15 et 45 g/10 min ; c) une fraction soluble dans le xylène comprise entre 1 et 4 % en poids par rapport au poids total du copolymère.
EP08862861A 2007-12-18 2008-12-03 Articles moulés transparents Withdrawn EP2222731A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08862861A EP2222731A1 (fr) 2007-12-18 2008-12-03 Articles moulés transparents

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP07150083 2007-12-18
US847407P 2007-12-20 2007-12-20
EP08862861A EP2222731A1 (fr) 2007-12-18 2008-12-03 Articles moulés transparents
PCT/EP2008/066672 WO2009077328A1 (fr) 2007-12-18 2008-12-03 Articles moulés transparents

Publications (1)

Publication Number Publication Date
EP2222731A1 true EP2222731A1 (fr) 2010-09-01

Family

ID=40418857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08862861A Withdrawn EP2222731A1 (fr) 2007-12-18 2008-12-03 Articles moulés transparents

Country Status (2)

Country Link
EP (1) EP2222731A1 (fr)
WO (1) WO2009077328A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3766652B1 (fr) * 2019-07-16 2023-04-12 Basell Poliolefine Italia S.r.l. Utilisation de récipient moulé par injection pour micro-ondes
EP4114872A1 (fr) 2020-03-04 2023-01-11 Basell Poliolefine Italia S.r.l. Copolymère à base de propylène pour récipients

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151741A3 (fr) * 1983-12-13 1985-09-25 MITSUI TOATSU CHEMICALS, Inc. Récipient moulé par soufflage et composition de résine pour sa fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009077328A1 *

Also Published As

Publication number Publication date
WO2009077328A1 (fr) 2009-06-25

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