CHELATING MACROMOLECULAR ANTI-OXIDATION STABILISING AGENT, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

WIPO Patent Application WO/2021/027202

A1

A chelating anti-oxidation stabilising agent, a preparation method therefor, and an application thereof in macromolecular material, playing a dual protective role. The preparation method comprises: (1) adding compound 1 and epichlorohydrin, slowly adding sodium hydroxide or potassium hydroxide in batches, maintaining the temperature and reacting until the reaction of compound 1 is complete, and adding 1L MTBE or DCM or DCE to obtain a colourless oily compound 2; (2) adding mercaptan, adding a solvent, stirring for 30 min, adding compound 2 at 5-10℃ under the protection of nitrogen, implementing an ice bath for half an hour, and slowly adding sodium hydroxide or potassium hydroxide to obtain compound 3 or compound 4. The prepared chelating anti-oxidation stabilising agent has a thioether long-acting high-temperature anti-oxidation activity functional group, and also has the function of forming sulphur and hydroxyl coordinated five-membered cyclic complexing metal ions, said function playing a role in complexing and eliminating metal ions that catalyse the degradation of macromolecular materials.

MAO LIJUAN (CN)
YIN QIWEI (CN)
WANG YIFEI (CN)
ZHAO CHENGSHI (CN)
LUO RUI (CN)
WANG JIJIANG (CN)
CHEN XIUYING (CN)
LIU SHUBO (CN)

PCT/CN2019/124727

February 18, 2021

December 12, 2019

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SHAOXING RUIKANG BIOTECHNOLOGES CO INC (CN)

C09K15/12; C07C319/14; C09K15/30

CN110437838A	2019-11-12
US4125516A	1978-11-14
US4001299A	1977-01-04
CN107311897A	2017-11-03
CN106674591A	2017-05-17
CN105801456A	2016-07-27
CN103724241A	2014-04-16

SHAOXING YUEXING PATENT OFFICE (CN)

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