Total Research & Technology Feluy

Total Petrochemicals Research Feluy

Rita De Luca

Alain Standaert

Thomas Forgue

Jerome Gromada

Jérôme Gromada

Philippe Hoslet

Propylene polymer including at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer may be characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. The propylene polymer may be particularly suited for thermoforming.

Propylene polymer with improved processability in thermoforming

The present invention concerns a propylene polymer comprising at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer, said propylene polymer being further characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. Said propylene polymer is particularly suited for thermoforming. The present invention further concerns a process for producing said propylene polymer as well as its use in thermoforming.

The present invention concerns a heterophasic propylene copolymer of high melt flow for injection molding, which comprise a propylene polymer matrix and a rubber. The heterophasic propylene copolymers of the present invention are characterized by a high viscosity of the rubber phase and a well-defined ratio of the intrinsic viscosities of the rubber phase and the propylene polymer matrix, thus resulting in improved mechanical properties. The present invention further relates to a process for the production of such heterophasic propylene copolymers, their use and articles produced with them.

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Souvret, Belgium

Rita De Luca