US 12,264,239 B2
Chlorinated vinyl chloride-based resin
Mitsuo Matsumoto, Yamaguchi (JP); Ryota Yamasugi, Yamaguchi (JP); Nami Nakajima, Osaka (JP); and Yasunari Kusaka, Osaka (JP)
Assigned to SEKISUI CHEMICAL CO., LTD., Osaka (JP)
Appl. No. 17/908,720
Filed by SEKISUI CHEMICAL CO., LTD., Osaka (JP)
PCT Filed Mar. 30, 2021, PCT No. PCT/JP2021/013712
§ 371(c)(1), (2) Date Sep. 1, 2022,
PCT Pub. No. WO2021/201048, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2020-064537 (JP), filed on Mar. 31, 2020.
Prior Publication US 2023/0128429 A1, Apr. 27, 2023
Int. Cl. C08F 8/34 (2006.01); C08F 114/06 (2006.01); C08L 27/24 (2006.01)
CPC C08L 27/24 (2013.01) [C08F 8/34 (2013.01); C08F 114/06 (2013.01); C08L 2201/08 (2013.01)] 5 Claims
 
1. A chlorinated polyvinyl chloride resin
comprising 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.