08-09-2022 дата публикации
Номер: US20220282044A1
The present invention discloses a polymerized high-molecular-weight sterically hindered amine having a general formula I, the sterically hindered amine has the advantages of high molecular weight, difficult migration in polymer products, good thermal stability, etc., and can stabilize and/or be flame retardant to organic substances sensitive to light, heat or oxidation, and furthermore, can be made to have better compatibility with different types of polymer materials by changing substituents. 2. The polymerized high-molecular-weight sterically hindered amine according to claim 1 , characterized in that Gand Gare independently selected from C-Calkyl; the Ris selected from C-Calkyl; E is selected from —CO— or —CH—; the Qand Qare independently selected from —O— claim 1 , —CO—O— claim 1 , —CO—NR— or —NR—; the Rand Rare independently selected from hydrogen and C-Calkyl.4. The polymerized high-molecular-weight sterically hindered amine according to claim 3 , characterized in that the Rand Rare independently selected from hydrogen claim 3 , and C-Calkyl claim 3 , wherein the H atom in the alkyl can be substituted with —R claim 3 , —OR claim 3 , —COORor —COR; the Ris selected from C-Calkylene claim 3 , wherein the H atom in the alkylene can be substituted with —R claim 3 , —OR claim 3 , —COORor —COR; the total number of carbon atoms in the R claim 3 , Rand Ris 40 or less;{'sub': 7', '8', '1', '20', '1', '20', '21', '7', '8', '7', '8', '3', '12', '2', '12, 'the Rand Rare independently selected from hydrogen, unsubstituted C-Calkyl or C-Calkyl substituted with —R; or, R, Rand the N atom between Rand Rform unsubstituted C-Ccycloalkylene or C-Cheterocycloalkylene;'}{'sub': 3', '22', '22, 'the Qis selected from —O—, —CO—O—, —CO—NR— or —NR—; and'}{'sub': 4', '5', '1', '40', '21', '21', '21', '21', '6', '1', '40', '21', '21', '21', '21', '4', '5', '6, 'the Rand Rare independently selected from hydrogen, and C-Calkyl, wherein the H atom in the alkyl can be substituted with —R, —OR ...
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