The present invention relates to a polymer film for an inner liner, which includes a base material film composed of: a polyamide-based resin; a copolymer including a polyamide-based segment and a poly-ether-based segment; and an olefinic polymer compound. The modulus, generated when the base material film stretches out in a first direction at the rate of 0-10% at 50-80°C after the same stretches out in a first direction at the rate of 150-200%, is 250-500 Mpa. According to the present invention, the polymer film can contribute to weight lightening of a tire by creating superior airtightness in spite of being thin.
본 폴리아마이드계 수지; 폴리아마이드계 세그먼트와 폴리에테르(poly-ether)계 세그먼트를 포함하는 공중합체; 및 올레핀계 고분자 화합물;을 포함한 기재 필름을 포함하고, 상기 기재 필름이 제1 방향으로 150% 내지 200% 신장된 이후 50℃ 내지 80℃의 온도에서 상기 제 1 방향으로0% 내지 10% 신장시 발생하는 모듈러스가 250 Mpa 내지 500 Mpa인, 이너라이너용 고분자 필름에 관한 것이다.
POLYMER FILM
고분자 필름
2016-04-07
Patent
Electronic Resource
Korean
IPC: | C08J Verarbeitung , WORKING-UP / B60C VEHICLE TYRES , Fahrzeugreifen / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |