PROCESS FOR THE ALKYLATION OF PHENOLS
    1.
    发明申请

    公开(公告)号:US20180244595A1

    公开(公告)日:2018-08-30

    申请号:US15758010

    申请日:2016-09-07

    Applicant: BASF SE

    CPC classification number: C07C37/14 B01J31/00 B01J31/2226 C07C39/06

    Abstract: The present invention relates to a process for the preparation of 2,6-di-tert-butyl phenol by reacting phenol with isobutylene in presence of an aluminum phenoxide catalyst, comprising i) preparing an aluminum phenoxide catalyst and phenol comprising mixture a) by mix-ing aluminum metal with phenol, and activating the catalyst by heating the mixture to a temperature of 100 to 180° C., and ii) carrying out a reaction b) by reacting mixture a) with an isobutylene comprising stream comprising 20 to 90% by weight of isobutylene and 10 to 80% by weight of 1-butene and/or 2-butene, which reaction is carried out under pressure and the maximum pressure is 5 to 20 bar.

    NEW MEMBRANE POLYMER AND MEMBRANES

    公开(公告)号:US20230090902A1

    公开(公告)日:2023-03-23

    申请号:US16625326

    申请日:2018-06-25

    Abstract: The present invention relates to a process for the preparation of a polyarylene ether sulfone polymer (P) by converting a reaction mixture (RG) which comprises, among others, at least one aromatic dihalogen sulfone and at least one dihydroxy component comprising at least 20 mol-% of trimethylhydroquinone based on the total amount of the at least one dihydroxy component. The present invention furthermore relates to the Ouse of a polyarylene ether sulfone polymer (P) obtainable by the inventive process in a membrane (M) and to a membrane (M) comprising the polyarylene ether sulfone polymer (P) obtainable by the inventive process, as well as to a method for the preparation of a membrane (M).

    SULFONATED POLYARYLETHERSULFONES AND MEMBRANES THEREOF

    公开(公告)号:US20200157285A1

    公开(公告)日:2020-05-21

    申请号:US16627863

    申请日:2018-07-12

    Applicant: BASF SE

    Abstract: The present invention relates to a process for the preparation of a sulfonated polyarylene ether sulfone polymer (sP) by converting a reaction mixture (RG) which comprises, among others, at least one non-sulfonated aromatic dihalogen sulfone, at least one sulfonated aromatic dihalogen sulfone and at least one aromatic dihydroxy component comprising trimethylhydroquinone. The present invention furthermore relates to a sulfonated polyarylene ether sulfone polymer (sP) obtainable by the inventive process and to its use in a membrane (M). Furthermore, the present invention relates to a membrane (M) comprising this sulfonated polyarylene ether sulfone polymer (sP) and to a method for the preparation of the membrane (M).

    STERICALLY HINDERED AMINES
    6.
    发明申请
    STERICALLY HINDERED AMINES 审中-公开
    异味。ED

    公开(公告)号:US20150210828A1

    公开(公告)日:2015-07-30

    申请号:US14678314

    申请日:2015-04-03

    Applicant: BASF SE

    CPC classification number: C08K5/3435 C07D211/94 C08K5/378 C08L21/02

    Abstract: A compound of the formula (A) wherein the radicals R1 are independently of one another methyl, ethyl or n-propyl, and X is C2-C8alkylene or C2-C8alkylene interrupted by sulfur, is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.

    Abstract translation: 式(A)的化合物,其中基团R 1彼此独立地为甲基,乙基或正丙基,X为C 2 -C 8亚烷基或被中断的C 2 -C 8亚烷基,可用于稳定有机材料以防止由 光,热或氧化。

Patent Agency Ranking