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1. WO2020201020 - COMPATIBILIZATION OF RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS

Publication Number WO/2020/201020
Publication Date 08.10.2020
International Application No. PCT/EP2020/058578
International Filing Date 26.03.2020
IPC
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
CPC
C08L 2205/03
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
03containing three or more polymers in a blend
C08L 2207/20
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
20Recycled plastic
C08L 23/12
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
Applicants
  • BOREALIS AG [AT]/[AT]
Inventors
  • KAHLEN, Susanne
  • BRAUN, Hermann
  • LIU, Yi
  • GAHLEITNER, Markus
  • HUBNER, Gerhard
Agents
  • MAIWALD PATENTANWALTS- UND RECHTSANWALTSGESELLSCHAFT MBH
Priority Data
19166174.329.03.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPATIBILIZATION OF RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS
(FR) COMPATIBILISATION DE MÉLANGES DE POLYÉTHYLÈNE-POLYPROPYLÈNE RECYCLÉS
Abstract
(EN)
The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a C2C3C4 terpolymer. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a C2C3C4 terpolymer for improving the impact- stiffness balance and the morphology of the blend (A).
(FR)
La présente invention concerne une composition de polyéthylène-polypropylène comprenant un mélange (A) qui est un matériau recyclé, ledit mélange comprenant du polypropylène et du polyéthylène, et un agent de compatibilité (B) qui est un terpolymère C2C3C4. La présente invention concerne en outre un article comprenant ladite composition de polyéthylène-polypropylène et un procédé de préparation de cette composition de polyéthylène-polypropylène. La présente invention concerne également l'utilisation d'un agent de compatibilité (B) qui est un terpolymère C2C3C4 permettant d'améliorer l'équilibre entre la résistance au choc et la rigidité ainsi que la morphologie du mélange (A).
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