NOVEL CERAMIDE, PREPARATION METHOD THEREFOR, AND USE THEREOF

    公开(公告)号:EP4296259A1

    公开(公告)日:2023-12-27

    申请号:EP22756396.2

    申请日:2022-01-25

    摘要: Disclosed herein are disclosed a novel ceramide and, specifically, 1-O-acylceramide having a structure in which a phytosphingosine base has fatty acid chains attached thereto in opposite directions, an isomer thereof, a salt thereof, a solvate thereof, or a hydrate thereof, a use thereof for enhancing a skin barrier function, and a preparation method therefor. 1-O-acylceramide with a purity of 70% or higher can be prepared using the method and is capable of reinforcing a skin barrier function, recovery or amelioration from a weakened skin barrier function, and treating or preventing diseases caused by a decrease in skin barrier function, thereby finding applications in various cosmetics and therapeutic formulations for skin disease.

    Water-soluble monomer, water-soluble polymer and their production process and use
    7.
    发明公开
    Water-soluble monomer, water-soluble polymer and their production process and use 失效
    水溶性单体,水溶性聚合物,它们的制备和它们的用途

    公开(公告)号:EP0802177A1

    公开(公告)日:1997-10-22

    申请号:EP97105932.4

    申请日:1997-04-10

    摘要: A water-soluble monomer is shown by general formula (1) below. This monomer, for example, can be obtained by reacting asparagic acid and maleic anhydride in an aqueous basic solution under cooled conditions. A water-soluble polymer has a structural unit of general formula (2) below and a weight-average molecular weight of about 800 to about 8,000,000, and is, for example, produced by polymerizing a monomer including the water-soluble monomer of general formula (1). The water-soluble polymer has excellent chelating and dispersing actions and therefore can favorably be used for various purposes, such as, detergent compositions, inorganic-pigment dispersants, fiber-treating agents, water-treating agents, wood pulp-bleaching assistants.

    摘要翻译: 水溶性单体由下述通式(1)所示。 这种单体,例如,可以通过在冷却条件下的碱性溶液wässrige起反应天冬氨酸和马来酸酐获得。 水溶性聚合物具有下述通式(2)和大约800的重均分子量为约8000000的结构单元,并且是由包含通式的水溶性单体聚合的单体,例如,产生 (1)。 水溶性聚合物具有优异的螯合剂和分散操作,因此可以有利地用于各种目的,颜色:例如,洗涤剂组合物,无机颜料分散剂,纤维处理剂,水处理剂,木浆漂白助剂。