SEALANT COMPOSITION

• Main Authors: GINGER DOUGLAS S, GAUBERT JOSHUA, SAINI GAGAN, DEMIRORS MEHMET, JAIN PRADEEP, TURNER MICHAEL D, BILGEN MUSTAFA, KAPUR MRIDULA
• Format: Patent
• Language: English; Korean
• Published: 19.06.2015
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; 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; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

본 발명은 실란트 용도에 적합한 폴리올레핀 조성물, 실란트 조성물, 상기를 제조하는 방법, 및 상기로부터 제조된 필름 및 다층 구조물을 제공한다. 본 발명에 따른, 실란트 용도에 적합한 폴리올레핀 조성물은 40 내지 110 범위의 공단량체 분포 상수 (CDC), 에틸렌계 중합체 조성물의 백본에 존재하는 탄소 원자 1000개당 비닐 0.1개 미만의 비닐 불포화; 1.01 내지 2.0 범위의 제로 전단 점도 비 (ZSVR); 0.908 내지 0.922 g/cm범위의 밀도, 0.5 내지 5.0g/10분 범위의 용융 지수 (190℃/2.16 kg에서의 I), 2.0 내지 4.0 범위의 분자량 분포 (중량 평균 분자량을 수 평균 분자량으로 나눈 것, M/M으로서 정의됨) 및 5 내지 50 범위의, 190℃에서 결정된 0.1 라디안/초에서의 tan 델타를 갖는 에틸렌/α-올레핀 혼성중합체 조성물을 포함한다. The instant invention provides a polyolefin composition suitable for sealant applications, sealant compositions, method of producing the same, and films and multilayer structures made therefrom. The polyolefin composition suitable for sealant applications according to the present invention comprises: an ethylene/α-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in the range of from 40 to 110, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range of from 1.01 to 2.0; a density in the range of from 0.908 to 0.922 g/cm3, a melt index (I2 at 190° C./2.16 kg) in the range of from 0.5 to 5.0 g/10 minutes, a molecular weight distribution (defined as the weight average molecular weight divided by the number average molecular weight, Mw/Mn) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second, determined at 190° C., in the range of from 5 to 50.