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Heterophasic polypropylene with high flowability and enhanced mechanical properties

A technology of heterogeneous polypropylene and crystalline polypropylene, which is applied in the field of heterogeneous polypropylene resin to achieve high fluidity and improve impact resistance

Active Publication Date: 2015-04-22
BOREALIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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However, this method has certain limitations

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  • Heterophasic polypropylene with high flowability and enhanced mechanical properties
  • Heterophasic polypropylene with high flowability and enhanced mechanical properties
  • Heterophasic polypropylene with high flowability and enhanced mechanical properties

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Embodiment

[0182] 1. Method

[0183] a) Melt flow rate

[0184] Melt flow rate (MFR) is determined according to ISO 1133 and expressed in g / 10 min. The MFR represents the flowability of the polymer and thus the processability of the polymer. The higher the melt flow rate, the lower the viscosity of the polymer. The MFR of the polypropylene 2 It is determined at a temperature of 230°C and a load of 2.16kg.

[0185] b) Xylene soluble fraction

[0186] The xylene soluble fraction (XCS) as defined and described in the present invention is determined by dissolving 2.0 g of polymer in 250 ml of p-xylene at 135°C with stirring. After 30 minutes, the solution was allowed to cool at room temperature for 15 minutes and then allowed to stand at 25±0.5° C. for 30 minutes. The solution was filtered with filter paper into two 100 ml flasks. The solution from the first 100 ml container was evaporated under a stream of nitrogen and the residue was vacuum dried at 90°C until constant weight was ...

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Abstract

The present invention relates to a heterophasic polypropylene resin comprising a crystalline propylene homopolymer matrix (A) and an amorphous propylene copolymer phase (B) dispersed within the matrix having excellent mechanical properties, in particular at low temperatures, and at the same time high flowability. Further, the invention relates to a production process of the heterophasic polypropylene resin, the use of such a resin in a polypropylene composition and to articles made of the heterophasic polypropylene resin.

Description

technical field [0001] The present invention relates to a phase comprising a crystalline propylene homopolymer matrix (A) and an amorphous propylene copolymer phase (B) dispersed in said matrix, having excellent mechanical properties, especially at low temperatures, combined with high fluidity heterophasic polypropylene resin. The invention also relates to a process for producing said heterophasic polypropylene resin, the use of such a resin in polypropylene compositions and articles made from said heterophasic polypropylene resin. Background technique [0002] In recent years, there has been an increasing demand for high-performance acrylic-based plastics with enhanced mechanical properties and processability, mainly due to the trend of replacing metal parts with plastics in various industrial fields such as automotive or household industries. [0003] Isotactic polypropylene offers the possible characteristics of such a material and can be compounded with different elasti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/10C08L23/12C08F10/06C08F297/08C08L23/14
CPCC08L2205/025C08L23/12C08F297/083C08F210/06C08F110/06C08F10/00C08L2205/03C08L23/10C08L2308/00C08L23/16C08L23/14C08F10/06C08L2314/06C08L2205/02C08L2666/02C08F4/65927C08F2/001C08F2500/03C08F2500/11C08F2500/12C08F2500/17C08F210/16C08F297/08
Inventor S·海拉恩迪什P·杜塞弗C·克尼泽尔
Owner BOREALIS AG
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