Sterically hindered amines
    2.
    发明授权

    公开(公告)号:US11161813B2

    公开(公告)日:2021-11-02

    申请号:US16718832

    申请日:2019-12-18

    Applicant: BASF SE

    Abstract: An intermediate of the formula (I) wherein the radicals R1 are independently of one another methyl, ethyl or n-propyl, is suitable for preparing a compound of the formula (A) wherein X is a group of the formula (A-I) or (A-II), Y is C11-C17alkyl, and Z is a direct bond, —(CH2)8— or —CH2—S—CH2—. The compounds of the formula (A) are useful for stabilizing an organic material against thermal, oxidative or light induced degradation.

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