염소화염화비닐계 수지

• Main Authors: YAMASUGI RYOTA, NAKAJIMA NAMI, MATSUMOTO MITSUO, KUSAKA YASUNARI
• Format: Patent
• Language: Korean
• Published: 08.12.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

본 발명은, 얻어지는 성형체가 우수한 히트 사이클성 및 내후성을 갖는 염소화염화비닐계 수지, 그리고, 그 염소화염화비닐계 수지를 사용한 성형용 수지 조성물 및 성형체를 제공한다. 본 발명은, 펄스 NMR 을 사용하여 30 ℃ 에서 Solid Echo 법으로 측정하고, 1H 의 스핀-스핀 완화의 자유 유도 감쇠 곡선을, 최소 제곱법에 의해 완화 시간이 짧은 순서로 A30 성분, B30 성분의 2 성분에서 유래하는 2 개의 곡선으로 파형 분리하여 얻은, B30 성분의 완화 시간 TB 와, 200 ℃ 에서 5 분간 가열한 후에 있어서의 B30 성분의 완화 시간 T5B 의 비 [T5B/TB] 가 96 % 이상, 120 % 이하인, 염소화염화비닐계 수지이다. The present invention provides a chlorinated polyvinyl chloride resin that provides a molded article having excellent heat cycle characteristics and excellent weather resistance, as well as a resin composition for molding and a molded article each including the chlorinated polyvinyl chloride resin. Provided is a chlorinated polyvinyl chloride resin, containing two components including a A30 component and a B30 component, the A30 component and the B30 component being determined by measuring the resin by a solid echo method using pulse NMR at 30° C. to give a free induction decay curve of 1H spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into two curves derived from the A30 component and the B30 component in order of shorter relaxation time using the least square method, and having a ratio of T5B to TB [T5B/TB] of 96% or more and 120% or less, where TB is a relaxation time of the B30 component and T5B is a relaxation time of the B30 component after heating at 200° C. for five minutes.