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, C13-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.
Disclosed is a polypropylene resin composition for an uncoated crash pad. The composition may include an amount of about 50 to 80 wt % of a polypropylene resin having a Polydispersity Index (PI) of about 4.5 to 6.5, a weight average molecular weight of about 200,000 to 350,000 g/mol, and an isotactic peptide fraction of about 96% or greater as measured by a C13-NMR method, an amount of about 1 to 30 wt % of rubber having a melt index of about 1 to 6 g/10 min (230° C., 2.16 Kg), an amount of about 11 to 30 wt % of an inorganic filler composed of a mixture of an amount of about 10 to 20 wt % of talc and an amount of about 1 to 10 wt % of whisker, and an amount of about 1 to 5 wt % of an anti-scratch agent, all the wt % are based on the total weight of the polypropylene resin composition.
POLYPROPYLENE RESIN COMPOSITION FOR UNCOATED CRASH PAD
무도장 크래쉬 패드용 폴리프로필렌 수지 조성물
2022-10-06
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 |