POLYPROPYLENE RESIN COMPOSITION HAVING EXCELLENT MELT STRENGTH AND METHOD FOR PREPARING SAME

• Main Authors: SON, Chang Kyu, LIM, Jisu, JUNG, Jae-Hoon
• Format: Patent
• Language: English; French; Korean
• Published: 06.06.2024
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

Disclosed are a polypropylene resin composition having a high extensional viscosity and high melt strength and a method for preparing same. The present invention provides a polypropylene resin composition and a method for preparing same, the polypropylene resin composition having 4-15 wt% of a polymer content, a weight average molecular weight of 250,000-500,000 g/mol, a molecular weight distribution (MWD, Mw/Mn) of 5.5-12, and a molecular weight of 1,000,000 g/mol or more. Sont divulgués une composition de résine de polypropylène ayant une viscosité d'extension élevée et une résistance à l'état fondu élevée et son procédé de préparation. La présente invention concerne une composition de résine de polypropylène et son procédé de préparation, la composition de résine de polypropylène ayant de 4 à 15% en poids d'une teneur en polymère, un poids moléculaire moyen en poids de 250 000 à 500 000 g/mol, une distribution de poids moléculaire (MWD, Mw/Mn) de 5,5 à 12, et un poids moléculaire de 1 000 000 g/mol ou plus. 높은 신장점도 및 용융강도를 갖는 폴리프로필렌 수지 조성물 및 그 제조방법이 개시된다. 본 발명은 중량평균 분자량이 250,000 내지 500,000 g/mol이고, 분자량 분포(MWD, Mw/Mn)가 5.5 내지 12이고, 분자량 1,000,000 g/mol 이상인 고분자량 함량이 4 내지 15 중량%인 폴리프로필렌 수지 조성물 및 그 제조방법을 제공한다.