COMPOSITION CONTAINING CARBON-REDUCTION TYPE BIOMASS POLYETHYLENE FOR STRETCH FILM AND METHOD FOR PREPARING SAME

• Main Authors: HAN, A Ram, OH, Su Gyeong
• Format: Patent
• Language: English; French; Korean
• Published: 06.06.2019
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; GENERAL PROCESSES OF COMPOUNDING; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

The present invention relates to a composition for a carbon-reduction type biomass stretch film having high strength and high stretchability, and to a method for preparation the same and, more specifically, to a carbon-reduction type biomass stretch film, which has excellent tensile strength, leading to reductions in packaging weight and volume, thereby reducing logistic costs; is environmentally friendly due to a carbon dioxide reduction effect; and has improved tensile strength and stretching rates so as to be used for packaging by stretch films, by resolving the problems of conventional biomass-containing films, that is, the disadvantages that films are difficult to distribute for a long period of time due to weakness to heat and too fast biodegradation thereof, through a bio polyethylene resin containing biomass derived from a natural material, such as sugarcane, a linear low-density polyethylene resin obtained by polymerization under a Ziegler-Natta catalyst, and a linear low-density polyethylene resin obtained by polymerization under a metallocene catalyst, and the polymer matrix design. La présente invention concerne une composition pour un film étirable de biomasse de type à réduction de carbone ayant une résistance élevée et une extensibilité élevée, et son procédé de préparation et, plus spécifiquement, un film étirable de biomasse de type à réduction de carbone, qui a une excellente résistance à la traction, conduisant à des réductions de poids et de volume d'emballage, de façon à réduire les coûts logistiques ; est respectueux de l'environnement en raison d'un effet de réduction de dioxyde de carbone ; et présente une résistance à la traction et des taux d'étirage améliorés de façon à être utilisée pour l'emballage par des films étirables, en résolvant les problèmes des films contenant une biomasse conventionnels, c'est-à-dire, les inconvénients en ce que les films sont difficiles à distribuer pendant une longue durée en raison d'une faiblesse à la chaleur et d'une biodégradation trop rapide de ceux-ci, au moyen d'une résine de polyéthylène biologique contenant une biomasse dérivée d'un matériau naturel, tel que la canne à sucre, une résine polyéthylène linéaire basse densité obtenue par polymérisation sous un catalyseur Ziegler-Natta, et une résine polyéthylène linéaire basse densité obtenue par polymérisation sous un catalyseur métallocène, et la conception de matrice de polymère. 본 발명은 탄소저감형 고강도 고연신성을 갖는 바이오매스 스트레치 필름 조성물 및 제조방법에 관한 것으로, 보다 상세하게는 사탕수수와 같은 천연 재료에서 유래된 바이오매스를 함유한 바이오 폴리에틸렌 수지, 지글러-나타 촉매 하에 중합된 선형 저밀도 폴리에틸렌 수지 및 메탈로센 촉매하에 중합된 선형 저밀도 폴리에틸렌 수지와 고분자 매트릭스 설계를 통해, 종래 바이오매스를 포함하는 필름의 문제점인 열에 약하고 너무 빠른 생분해 특성 때문에 장기간 유통하기 어려운 단점을 해소하여, 우수한 인장강도를 갖고 있어 포장의 중량, 부피 감량으로 물류 비용을 절감하고 이산화탄소 저감 효과로 인해 환경적이며 스트레치 필름의 포장용도로 사용될 수 있도록 인장강도, 연신율 등이 개선된 탄소 저감형 바이오매스 스트레치 필름에 관한 것이다.