개선된 팽창성 비닐 방향족 중합체

• Main Authors: URBANCZYK LAETITIA, IACOLINA AMELIO, MICHEL JACQUES, DELEYE JEAN CLAUDE, CASSART MICHEL, VACHAUDEZ MAGALI
• Format: Patent
• Language: Korean
• Published: 18.06.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

본 발명은 분쇄된 코크스를 포함하는 팽창성 비닐 방향족 중합체에 관한 것이고, 상기 분쇄된 코크스는 적어도 4 nm 의 탄소 결정자의 평균 스택 높이 (Lc), 1 내지 5 ㎛ 미만의 부피 중앙 입자 직경 (D50) 을 갖고, 2.5 미만의 스팬 (D90-D10)/D50 을 특징으로 한다. 팽창성 비닐 방향족 중합체로부터 제조된 성형 부품은 낮은 발포체 밀도에 대한 낮은 열전도율을 입증한다. The present invention is related to expandable vinyl aromatic polymers comprising comminuted coke, said comminuted coke having an average stack height (Lc) of carbon crystallites at least 4 nm, a volume median particle diameter (D50) comprised between 1 and less than 5 μm and being characterized by a span (D90−D10)/D50 below 2.5 Molded parts produced from the expandable vinyl aromatic polymers prove low thermal conductivities for a low foam density.