POLYPROPYLENE RESIN COMPOSITION

The present invention relates to a polypropylene resin composition, based on the total weight of the overall composition, comprising: 1-30 wt% of homo polypropylene having a melt index of 2-6 g/10 min (230°C, 2.16 kg) and an isotacticity index of 97% or greater; 1-40 wt% of homo polypropylene having...

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Bibliographic Details
Main Authors YOUN, JEE YOUNG, LIM, JUNG HYEOK
Format Patent
LanguageEnglish
Korean
Published 11.09.2014
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:The present invention relates to a polypropylene resin composition, based on the total weight of the overall composition, comprising: 1-30 wt% of homo polypropylene having a melt index of 2-6 g/10 min (230°C, 2.16 kg) and an isotacticity index of 97% or greater; 1-40 wt% of homo polypropylene having a melt index of 16-22 g/10 min (230°C, 2.16 kg) and an isotacticity index of 96% or greater; 20-40 wt% of a glass fiber having an excellent stiffness reinforcing effect as an inorganic filler for improving heat resistance and mechanical properties; and 1-10 wt% of denatured polypropylene included as a compatibilizing agent for maximizing the compatibility of the polypropylene resin and glass fiber. Accordingly, the polypropylene resin composition has excellent stiffness, short-term heat resistance, long-term heat resistance, and welding strength, and the weight thereof can be decreased. Moreover, production costs can be reduced.
Bibliography:Application Number: KR20130050404