수지 조성물 및 그의 용도

• Main Authors: SASAKI TAKANORI, YOSHIMOTO KOYA, IZAIKE YUHEI
• Format: Patent
• Language: Korean
• Published: 12.09.2023
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

본 발명의 목적은, 고속 성형성이 양호하고, 필름 성형 시의 칠 롤이나 가이드 롤에 대한 점착성이 낮고, 극성기를 갖는 수지(극성 수지)와의 접착성이 우수한 수지 조성물을 얻는 것에 있고, 본 발명은, 프로필렌계 중합체(A)를 75∼100질량부와, 소정의 요건을 만족시키는 에틸렌과 탄소 원자수 3∼20의 α-올레핀으로부터 선택되는 적어도 1종의 α-올레핀의 공중합체(B)를 0∼25질량부〔단, (A) 및 (B)의 합계를 100질량부로 한다.〕를 포함하는 수지 조성물로서, 당해 프로필렌계 중합체(A)가, 적어도 일부가 극성 화합물로 변성되어 이루어지고, 또한 당해 수지 조성물이 소정의 요건을 만족시키는 수지 조성물에 관한 것이다. An object of the present invention is to obtain a resin composition with favorable high-speed formability, low adhesiveness to chill rolls and guide rolls upon film forming, and excellent adhesiveness to a resin having a polar group (polar resin). The present invention relates to a resin composition including 75 to 100 parts by mass of a propylene-based polymer (A), and 0 to 25 parts by mass of a copolymer (B) of ethylene and at least one α-olefin selected from α-olefins having 3 to 20 carbon atoms, and satisfying prescribed requirements, provided that the sum of the (A) and the (B) is 100 parts by mass, wherein at least a part of the propylene-based polymer (A) is modified with a polar compound, and the resin composition satisfies prescribed requirements.