The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2025
Filed:
Mar. 30, 2021
Sekisui Chemical Co., Ltd., Osaka, JP;
Mitsuo Matsumoto, Yamaguchi, JP;
Ryota Yamasugi, Yamaguchi, JP;
Nami Nakajima, Osaka, JP;
Yasunari Kusaka, Osaka, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
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 Acomponent and a Bcomponent, the Acomponent and the Bcomponent being determined by measuring the resin by a solid echo method using pulse NMR at 30° C. to give a free induction decay curve ofH spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into two curves derived from the Acomponent and the Bcomponent in order of shorter relaxation time using the least square method, and having a ratio of T5to T[T5/T] of 96% or more and 120% or less, where Tis a relaxation time of the Bcomponent and T5is a relaxation time of the Bcomponent after heating at 200° C. for five minutes.