US 2026/0201156 A1 · POLYPROPYLENE RESIN COMPOSITION FOR IMPROVING SURFACE QUALITY OF MOLDED ARTICLE AND ENHANCING INJECTION MOLDABILITY, AND MOLDED ARTICLE THEREOF

Abstract

The present disclosure relates to a polypropylene resin composition for improving the surface quality of a molded article and enhancing injection moldability. The polypropylene resin composition of the present disclosure minimizes the shear stress generated in a cavity and has high viscoelasticity, which induces smooth flow of a recycled material and prevents the occurrence of flow marks on the molded article. Additionally, the polypropylene resin composition of the present disclosure may exhibit improved processability and aesthetics during two-shot injection molding.

Claims13

Dependent claims

A polypropylene resin composition, comprising:

30 to 80 wt. % of a polypropylene-based resin;
5 to 30 wt. % of an ethylene-α-olefin copolymer;
1 to 5 wt. % of an anti-scratch additive;
5 to 35 wt. % of an inorganic filler;
and
0.1 to 0.5 wt. % of a processing aid.

3 more elements

Dependencies are inferred from the claim text.

Polypropylene resin composition for improving surface quality of molded article and enhancing injection moldability, and molded article thereof

Life of this patent

Polypropylene resin composition for improving surface quality of molded article and enhancing injection moldability, and molded article thereof

Life of this patent

Abstract

Claims13