증가된 용융 강도를 갖는 폴리올레핀 중합체

• Main Authors: MONTOYA AMAIA, ZHONG JING
• Format: Patent
• Language: Korean
• Published: 15.06.2020
• 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; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

증가된 용융 강도를 갖는 중합체 조성물이 개시된다. 상기 중합체 조성물은 적어도 하나의 용융 강도 개질제와 배합된 적어도 하나의 폴리프로필렌 중합체를 함유한다. 용융 강도 개질제는 중합체의 용융 강도 특성 및 성질을 변화시키기에 충분한 양의 소르비톨 유도체를 포함할 수 있다. 중합체 조성물은 열성형 공정에 그리고 중합체 폼을 생성하는 데 사용될 수 있다. 용융 강도 개질제는 폴리프로필렌 중합체 내에 분지화를 유도할 필요 없이 중합체의 용융 강도를 증가시킬 수 있다. A polymer composition with increased melt strength is disclosed. The polymer composition contains at least one polypropylene polymer combined with at least one melt strength modifier. The melt strength modifier can comprise a sorbitol derivative in an amount sufficient to change the melt strength characteristics and properties of the polymer. The polymer composition can be used in thermoforming processes and to produce polymer foams. The melt strength modifier can increase the melt strength of the polymer without having to induce branching in the polypropylene polymer.