Polypropylene resin composition for a heat shrinkable blown film and heat shrinkable blown film prepared therefrom

• Main Authors: CHUN YONGSUNG, KIM BONGSEOCK, LIM SEUNGHOON
• Format: Patent
• Language: English; Korean
• Published: 25.03.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

According to an embodiment of the present invention, a polypropylene resin composition comprising a terpolymer of ethylene/propylene/1-α-olefin is provided. The polypropylene resin composition is not only excellent in processability, but also excellent in transparency, adhesion properties, and shrinkage properties of films prepared through a double bubble film process, thereby being suitable for use as a heat-shrinkable film. 본 발명의 구체예에 따라서, 에틸렌/프로필렌/1-α-올레핀의 삼원 공중합체를 포함하는 폴리프로필렌 수지 조성물이 제공된다. 이 폴리프로필렌 수지 조성물은 가공성이 우수할 뿐만 아니라, 이로부터 더블 버블 필름 공정을 통해 제조되는 필름의 투명성, 접착 특성 및 수축 특성 등이 우수하여 열수축성 필름으로 사용되기에 적합하다.