RENEWABLY DERIVED THERMOPLASTIC POLYESTER-BASED URETHANES AND METHODS OF MAKING AND USING THE SAME

    公开(公告)号:US20170145145A1

    公开(公告)日:2017-05-25

    申请号:US15361174

    申请日:2016-11-25

    Abstract: The disclosure generally provides high-molecular-weight thermoplastic polyester-based urethanes (TPEUs). In some embodiments, the component monomers of the TPEUs are entirely derived from renewable sources. The disclosure also provides methods of making high-molecular-weight TPEUs, and, in particular, methods for achieving such high molecular weights. The disclosure also provides certain uses of such TPEUs. Entirely lipid-derived segmented thermoplastic TPEU elastomers with rubber-like properties such as low modulus and high elongation were produced by incorporating 1,9-nonanediol (ND) as chain extender with oleic acid derived polyester diols (PEDs) and 1,7-heptamethylene diisocyanate (HPMDI). Enhanced elastomeric properties were achieved by optimizing hydrogen bond density and phase separation of the TPEU via customized polymerization protocols. The novel TPEUs showed extensive degradation under hydrothermal ageing in water at 80° C. and achieved a tensile half-life in one day of immersion. For the first time, entirely lipid-derived TPEU elastomers with thermal and mechanical properties comparable to commercially available petroleum-based analogues and a controlled life-cycle were achieved, demonstrating the viability of potential alternatives to petroleum-derived elastomers and credible potential in biomedical applications especially as bio-resorbable implants or tissue scaffolds.

    TRIACYLGLYCEROL OLIGOMERS
    17.
    发明申请
    TRIACYLGLYCEROL OLIGOMERS 审中-公开
    三氯乙烯低聚物

    公开(公告)号:US20150321992A1

    公开(公告)日:2015-11-12

    申请号:US14703986

    申请日:2015-05-05

    CPC classification number: C07C69/73 C07C69/593 C11C3/00

    Abstract: This application relates to triacylglycerol oligomers derived from the metathesis of natural oils. These oligomers are structure controlled dimers and quatrimers, and the effect of saturation, molecular size, and positional isomerization are also described herein.

    Abstract translation: 本申请涉及由天然油复分解衍生的三酰基甘油低聚物。 这些低聚物是结构受控的二聚体和四聚体,本文还描述了饱和度,分子大小和位置异构化的影响。

    CERTAIN DIMERS AS CRYSTALLIZATION DEPRESSANTS
    18.
    发明申请
    CERTAIN DIMERS AS CRYSTALLIZATION DEPRESSANTS 有权
    某些二聚体作为结晶沉降剂

    公开(公告)号:US20140325899A1

    公开(公告)日:2014-11-06

    申请号:US14209505

    申请日:2014-03-13

    CPC classification number: C10L10/14 C07C69/593 C10L1/1915 C10L2200/0476

    Abstract: This application relates to certain dimers as crystallization depressants for biodiesel fuels, and methods for making the same. Such dimers, due to their particular structure and conformation, disrupt the regular packing of linear saturated fatty acid methyl esters, thereby delaying nucleation and mitigating crystal growth. In some embodiments, the dimer includes (E)-1-(1-(oleoyloxy)-3-(stearoyloxy)propan-2-yl) 18-(1-(oleoyloxy)-3-(stearoyloxy)propan-2-yl)octadec-9-enedioate.

    Abstract translation: 本申请涉及作为生物柴油燃料的结晶抑制剂的某些二聚体及其制备方法。 这种二聚体由于其特殊的结构和构象而破坏了线性饱和脂肪酸甲酯的常规包装,从而延缓成核并减缓晶体生长。 在一些实施方案中,二聚体包括(E)-1-(1-(油酰氧基)-3-(硬脂酰氧基)丙-2-基)18-(1-(油酰氧基)-3-(硬脂酰氧基)丙-2-基 )十八烷-9-壬二酸酯。

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