会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 40. 发明授权
    • Process for the preparation of azeleic acid from 9-octadecenedioic acid
    • 从9-十八碳烯酸制备烟酸的方法
    • US09302972B2
    • 2016-04-05
    • US14366051
    • 2012-12-12
    • Paulus Lamburtus Alsters
    • Paulus Lamburtus Alsters
    • C07C51/285C07C67/333C07C55/18C08G69/00
    • C07C51/285C07C55/18C07C67/333C08G69/00C07C69/48
    • The invention relates to a process for the preparation of azelaic acid or alkyl azelate starting from mono-unsaturated 9-octadecenedioic acid or its corresponding alkylester characterized in that the process comprises at least the following step: •reacting the mono-unsaturated 9-octadecene dioic acid or its corresponding alkylester with hydrogen peroxide in the presence of an organic carboxylic acid other than 9-octadecene dioic acid and a suitable catalyst to effect cleavage of the double bond in the mono-unsaturated 9-octadecene dioic acid or its corresponding alkylester. The invention further relates to the azelaic acid or alkyl azelate obtainable by the process according to the invention and to the use of azelaic acid or alkyl azelate or monomers derived there from for the preparation of a polymer, especially a polyamide.
    • 本发明涉及从单不饱和9-十八烯二酸或其相应的烷基酯开始制备壬二酸或壬烷二酸烷基酯的方法,其特征在于该方法至少包括以下步骤:使单不饱和9-十八碳烯二辛酸 酸或其相应的烷基酯与过氧化氢在除9-十八烯二酸之外的有机羧酸和合适的催化剂存在下进行,以实现单不饱和9-十八烯二酸或其相应的烷基酯中双键的裂解。 本发明还涉及通过本发明的方法获得的壬二酸或壬基壬磺酸烷基酯,以及由壬二酸或壬二酸烷基酯衍生的单体或其衍生物用于制备聚合物,特别是聚酰胺的用途。