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1. WO2011076354 - HETEROPHASIC POLYPROPYLENE WITH IMPROVED BALANCE BETWEEN STIFFNESS AND TRANSPARENCY

Publication Number WO/2011/076354
Publication Date 30.06.2011
International Application No. PCT/EP2010/007618
International Filing Date 14.12.2010
Chapter 2 Demand Filed 07.09.2011
IPC
B29C 45/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
C08F 297/08 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
297Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
06using a catalyst of the coordination type
08polymerising mono-olefins
C08L 23/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
C08L 23/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
12Polypropene
C08L 23/14 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
14Copolymers of propene
CPC
C08F 10/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04Monomers containing three or four carbon atoms
06Propene
C08F 210/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
04Monomers containing three or four carbon atoms
06Propene
C08F 297/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
297Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
06using a catalyst of the coordination type
08polymerising mono-olefins
C08F 297/083
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
297Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
06using a catalyst of the coordination type
08polymerising mono-olefins
083the monomers being ethylene or propylene
C08L 2205/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
02containing two or more polymers of the same C08L -group
C08L 2207/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2207Properties characterising the ingredient of the composition
02Heterophasic composition
Applicants
  • BOREALIS AG [AT]/[AT] (AllExceptUS)
  • DOSHEV, Petar [BG]/[AT] (UsOnly)
  • BALAKANTHA, Rao, Kona [IN]/[AT] (UsOnly)
  • JÄÄSKELÄINEN, Pirjo [FI]/[FI] (UsOnly)
  • MALM, Bo [FI]/[FI] (UsOnly)
Inventors
  • DOSHEV, Petar
  • BALAKANTHA, Rao, Kona
  • JÄÄSKELÄINEN, Pirjo
  • MALM, Bo
Agents
  • KADOR & PARTNER
Priority Data
09015956.723.12.2009EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HETEROPHASIC POLYPROPYLENE WITH IMPROVED BALANCE BETWEEN STIFFNESS AND TRANSPARENCY
(FR) POLYPROPYLÈNE HÉTÉROPHASIQUE PRÉSENTANT UN ÉQUILIBRE AMÉLIORÉ ENTRE LA RIGIDITÉ ET LA TRANSPARENCE
Abstract
(EN)
The present invention relates to a heterophasic polypropylene composition with rather high melt flow rate, high stiffness, acceptable impact properties and an advantageous balance between stiffness and transparency. Still further, the present invention is also directed to a process for producing the inventive polypropylene composition, to an article made of the inventive polypropylene composition and to the use of the inventive polypropylene composition for the production of films and moulded articles, such as thin-walled plastic containers for packaging. The inventive heterophasic polypropylene composition comprises at least a propylene homopolymer fraction, a propylene random copolymer fraction, two different ethylene-propylene rubber fractions and an ethylene homo- or copolymer fraction.
(FR)
La présente invention concerne une composition de polypropylène hétérophasique présentant un indice de fluidité assez élevé, une rigidité élevée, des propriétés de résilience acceptables et un équilibre avantageux entre la rigidité et la transparence. En outre, la présente invention concerne également un procédé de production de la composition de polypropylène selon l'invention, un article composé de la composition de polypropylène selon l'invention et l'utilisation de la composition de polypropylène selon l'invention pour la production de films et d'articles moulés, comme des récipients en plastique à parois fines pour l'emballage. La composition de polypropylène hétérophasique selon l'invention comprend au moins une fraction homopolymère de propylène, une fraction copolymère aléatoire de propylène, deux fractions de caoutchouc éthylène/propylène différentes, et une fraction homopolymère ou copolymère d'éthylène.
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