The present invention relates to a polypropylene resin composition for an uncoated crash pad. More specifically, the polypropylene resin composition for an uncoated crash pad comprises: 50 to 80 wt% of a high crystalline polypropylene resin having a polydispersity index (PI) of 4.5 to 6.5, having a weight average molecular weight of 200,000 to 350,000 g/mol, and having an isotactic peptide fraction greater than or equal to 96% by a C13-NMR method; 1 to 30 wt% of rubber having a melt index of 1 to 6 g/10 min (230°C, 2.16 Kg); 11 to 30 wt% of an inorganic filler consisting of 10 to 20 wt% of talc and 1 to 10 wt% of whisker; and 1 to 5 wt% of a scratch resistant agent.
본 발명은 무도장 크래쉬 패드용 폴리프로필렌 수지 조성물에 관한 것으로, 보다 상세하게는 본 발명의 무도장 크래쉬 패드용 폴리프로필렌 수지 조성물은 PI(Polydispersity Index)가 4.5 ~ 6.5이고, 중량평균분자량이 200,000 ~ 350,000g/mol이며, C-NMR법에 의한 아이소탁틱 펩타드분율이 96% 이상인 고결정성 폴리프로필렌 수지 50 ~ 80 중량%; 용융지수가 1 ~ 6 g/10min(230 ℃, 2.16Kg)인 고무 1 ~ 30 중량%; 탈크 10 ~ 20 중량% 및 휘스커 1 ~ 10 중량%의 혼합물로 이루어진 무기필러 11~30 중량%; 및 내스크래치제 1 ~ 5 중량%;를 포함한다.
POLYPROPYLENE RESIN COMPOSITION FOR UNCOATED CRASH PAD
무도장 크래쉬 패드용 폴리프로필렌 수지 조성물
2019-06-13
Patent
Electronic Resource
Korean
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |