POLYPROPYLENE RESIN COMPOSITION AND MOLDED PRODUCT MANUFACTURED THEREFROM

WIPO Patent Application WO/2024/096286

A1

A polypropylene resin composition of the present invention comprises: approximately 100 parts by weight of a polypropylene resin comprising approximately 20-40 wt% of recycled polypropylene resin; approximately 5-30 parts by weight of a first glass fiber having a cross-sectional diameter of approximately 5-20 μm and an average length of approximately 1-5 mm; approximately 15-40 parts by weight of a second glass fiber having a cross-sectional diameter of approximately 5-20 μm and an average length of approximately 7-15 mm; approximately 0.5-3.5 parts by weight of a maleic anhydride-modified polypropylene; and approximately 0.1-3 parts by weight of zeolite, wherein the weight ratio of the first glass fiber and the second glass fiber is approximately from 1:1 to 1:3. The polypropylene resin composition uses recycled polypropylene resin so as to be environmentally friendly, and has excellent stiffness, impact resistance, heat resistance, dimensional stability, appearance characteristics, balance of these physical properties, and the like.

KIM HYEONG JUN (KR)
KANG IN SUNG (KR)
KIM TAE SOO (KR)
LEE JI WON (KR)

PCT/KR2023/012942

May 10, 2024

August 31, 2023

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LOTTE CHEMICAL CORP (KR)

C08L23/10; C08K3/34; C08K7/14; C08L23/26

WO2022084236A1

2022-04-28

JP2000239437A	2000-09-05
JP2000290444A	2000-10-17
JP2001081336A	2001-03-27
JP2019136911A	2019-08-22

AJU INTERNATIONAL LAW & PATENT GROUP (KR)

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