ELECTRICALLY CONDUCTIVE MESOPHASE-SEPARATED OLEFIN MULTIBLOCK COPOLYMER COMPOSITIONS

• Main Authors: MARCHAND GARY R, ESSEGHIR MOHAMED
• Format: Patent
• Language: English; Korean
• Published: 03.01.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

매우 안정한 체적 저항률을 나타내는 자유 라디칼 가교된 전기 전도성의 조성물은 높은, 예를 들어 20 몰% 초과의 공단량체 함량, 예를 들어 부틸렌 또는 옥텐, 및 카본 블랙을 갖는 올레핀 다중블록 공중합체(OBC)를 포함한다. 이러한 조성물은, 높은 공단량체 함량의 OBC가 유사한 밀도 및 용융 지수를 갖는 낮은 공단량체 함량의 OBC로 대체된 것을 제외하고 본질적으로 모든 관점에서 유사한 조성물에 비해 매우 안정한 체적 저항률을 나타낸다. Free radically crosslinked, electrically conductive compositions exhibiting a highly stable volume resistivity comprise an olefin multiblock copolymer (OBC) having a high, e.g., greater than 20 mole percent comonomer content, e.g., butylene or octene, and carbon black. These compositions exhibit a highly stable volume resistivity relative to a composition similar in essentially all aspects save that the high comonomer OBC is replaced with a low comonomer OBC of similar density and melt index.