Aliphatic-aromatic biodegradable polyester

    公开(公告)号:US11345779B2

    公开(公告)日:2022-05-31

    申请号:US16682628

    申请日:2019-11-13

    Abstract: Disclosed are aliphatic-aromatic biodegradable polyesters obtained from aliphatic dicarboxylic acids comprising azelaic acid, sebacic acid, suberic acid, brassylic acid and their esters; polyfunctional aromatic acids of renewable origin and particularly 2,5-furan dicarboxylic acid, and diols, such as 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-haxanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 1,11-undecanediol, 1,12-dodecanediol, 1,13-tridecanediol, 1,4-cyclohexanedimethanol, propylene glycol, neopentyl glycol, 2-methyl-1,3-propanediol, dianhydrosorbitol, dianhydromannitol, dianhydroiditol, cyclohexanediol, cyclohexane-methanediol, aromatic diols such as phenols, and furan diol. Also disclosed are blends of the polyesters with other biodegradable polymers of either natural or synthetic origin. The polyesters have properties and viscosity values that make them suitable, after adjusting their molecular weight, for use in numerous practical applications such as films, injection molded products, extrusion coatings, fibers, foams, thermoformed products, extruded profiles and sheets, extrusion blow molding, injection blow molding, rotomolding, stretch blow molding.

    PROCESS FOR THE SELECTIVE HYDROGENATION OF VEGETABLE OILS
    7.
    发明申请
    PROCESS FOR THE SELECTIVE HYDROGENATION OF VEGETABLE OILS 有权
    植物油选择性加氢方法

    公开(公告)号:US20160137580A1

    公开(公告)日:2016-05-19

    申请号:US14900762

    申请日:2014-06-25

    Applicant: NOVAMONT S.P.A

    CPC classification number: C07C51/36 B01J23/44 C11C3/126

    Abstract: This invention relates to a process for the selective hydrogenation of vegetable oils. In particular the invention relates to a process for the hydrogenation of vegetable oils which is capable of selectively converting polyunsaturated fatty acids into mono-unsaturated fatty acids and products obtained therefrom. The vegetable oils obtained from the process according to the invention have in particular a high mono-unsaturated fatty acids content and are particularly suitable for use as raw materials for the synthesis of chemical intermediates.

    Abstract translation: 本发明涉及植物油的选择性氢化方法。 特别地,本发明涉及能够选择性地将多不饱和脂肪酸转化为单不饱和脂肪酸和由其获得的产品的植物油氢化方法。 从本发明方法得到的植物油具有特别高的单不饱和脂肪酸含量,特别适用于合成化学中间体的原料。

    PROCESS FOR THE SYNTHESIS OF 5-HYDROXYMETHYLFURFURAL FROM SACCHARIDES
    8.
    发明申请
    PROCESS FOR THE SYNTHESIS OF 5-HYDROXYMETHYLFURFURAL FROM SACCHARIDES 有权
    合成5-羟甲基纤维素的方法

    公开(公告)号:US20160115142A1

    公开(公告)日:2016-04-28

    申请号:US14889526

    申请日:2014-05-09

    CPC classification number: C07D307/46 B01J27/188 B01J35/1019 C07D307/50

    Abstract: This invention relates to a process for the synthesis of 5-hydroxymethylfurfural (HMF) from saccharides. In particular this invention relates to a process for the dehydration of monosaccharides having 6 carbon atoms (haxoses), disaccharides, oligosaccharides, and polysaccharides deriving to yield highly pure 5-hydroxymethylfurfural (HMF) in high yield.

    Abstract translation: 本发明涉及从糖类合成5-羟甲基糠醛(HMF)的方法。 特别地,本发明涉及以高产率得到高纯度的5-羟甲基糠醛(HMF)的方法,该方法用于脱水具有6个碳原子的单糖(口香糖),二糖,低聚糖和多糖。

    Process for the production of 1,4-butanediol from renewable sources and polyesters obtained therefrom

    公开(公告)号:US12195420B2

    公开(公告)日:2025-01-14

    申请号:US17834151

    申请日:2022-06-07

    Abstract: The invention relates to a process for the production of 1,4-butanediol comprising the preparation of a fermentation broth comprising 1,4-butanediol from renewable sources and water, separation of a liquid fraction comprising said 1,4-butanediol and water from one or more solid fractions, said liquid fraction comprising 2-pyrrolidone in an amount higher than 80 ppm, one or more passages of the resulting liquid fraction through a bed comprising one or more cation-exchange resins thereby providing an output pH of said liquid fraction from 4 to 2, one or more passages of the resulting liquid fraction through a bed comprising one or more anion-exchange resins thereby providing an output pH of said liquid fraction from 8 to 11, and the distillation of the liquid fraction thereby provided so as to obtain a composition having a concentration of said 1,4-butanediol higher than 99.0% by weight and comprising 2-pyrrolidone in an amount lower than 6 ppm. The resulting composition should exhibit an APHA color value after ageing of less than 30.

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