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    Apparatus and method for analyzing samples with NMR
    1.
    发明授权
    Apparatus and method for analyzing samples with NMR 有权

    公开(公告)号：US10042014B2

    公开(公告)日：2018-08-07

    申请号：US15132903

    申请日：2016-04-19

    申请人： Bridgestone Corporation ,  The University of Akron

    发明人： Toshikazu Miyoshi ,  Michael C. Davis ,  Jiahuan Hu

    IPC分类号： G01V5/00 ,  G01R33/30 ,  G01N24/08

    摘要： An apparatus and method for testing and analyzing the molecular structure of a sample material in an NMR device are described. A sample is held in a pre-determined stretched state in an apparatus that includes the sample arranged between two body components that are secured together with one or more retaining members that fit around the bodies or portions thereof. The apparatus is inserted into an NMR device to obtain NMR spectrums for analyzing the molecular structure of the samples, for instance, identifying strain-induced crystallinity and quantifying the same at pre-determined stretch ratios of a sample material.

    Methods For Quantifying Rubber Content In A Plant With NMR
    2.
    发明申请
    Methods For Quantifying Rubber Content In A Plant With NMR 审中-公开

    公开(公告)号：US20180052122A1

    公开(公告)日：2018-02-22

    申请号：US15540767

    申请日：2015-12-29

    申请人： Bridgestone Corporation

    发明人： Michael C. Davis ,  Yingyi Huang

    IPC分类号： G01N24/08 ,  G01N33/00 ,  G01R33/44

    摘要： Methods are described for quantifying an amount of natural rubber in a plant from a sample of the plant by obtaining a T1 spin-lattice relaxation rate or T2 spin-spin relaxation rate from a NMR apparatus, such as a low-field NMR apparatus operating at a magnetic field strength of 2 T or less. The NMR relaxation rates obtained from the plant sample are compared to reference relaxation data or plots. The plots can represent the weight percent polyisoprene versus T1 spin-lattice relaxation rate or T2 spin-spin relaxation rate. The reference relaxation data or plots are generated from testing the same type of plant as the sample.

    Apparatus And Method For Analyzing Samples With NMR
    3.
    发明申请
    Apparatus And Method For Analyzing Samples With NMR 审中-公开
    用NMR分析样品的仪器和方法

    公开(公告)号：US20160305896A1

    公开(公告)日：2016-10-20

    申请号：US15132903

    申请日：2016-04-19

    申请人： Bridgestone Corporation ,  The University of Akron

    发明人： Michael C. Davis ,  Toshikazu Miyoshi ,  Jiahuan Hu

    IPC分类号： G01N24/08

    CPC分类号： G01R33/30 ,  G01N24/08 ,  G01R33/307

    摘要： An apparatus and method for testing and analyzing the molecular structure of a sample material in an NMR device are described. A sample is held in a pre-determined stretched state in an apparatus that includes the sample arranged between two body components that are secured together with one or more retaining members that fit around the bodies or portions thereof. The apparatus is inserted into an NMR device to obtain NMR spectrums for analyzing the molecular structure of the samples, for instance, identifying strain-induced crystallinity and quantifying the same at pre-determined stretch ratios of a sample material.

    摘要翻译： 描述了用于测试和分析NMR装置中的样品材料的分子结构的装置和方法。 将样品保持在预先确定的拉伸状态下，该装置包括布置在两个主体部件之间的样品，所述两个主体部件与一个或多个安装在其主体或部分上的保持部件固定在一起。 将该装置插入NMR装置中，以获得用于分析样品分子结构的NMR光谱，例如鉴定应变诱导的结晶度，并以样品材料的预定拉伸比量化该结果。

    Methods for determining plant rubber content with low field NMR
    6.
    发明授权
    Methods for determining plant rubber content with low field NMR 有权

    公开(公告)号：US10859650B2

    公开(公告)日：2020-12-08

    申请号：US15637254

    申请日：2017-06-29

    申请人： Bridgestone Corporation

    发明人： Michael C. Davis ,  Yingyi Huang

    IPC分类号： G01N24/08 ,  G01R33/465 ,  G01R33/46 ,  C08L7/00 ,  C08L9/00 ,  C08F36/00 ,  G01R33/44

    摘要： Methods are described for quantifying an amount of natural rubber in a plant from a sample of the plant by obtaining a NMR spectrum and analyzing the signal peaks for the natural rubber in the plant sample and a standard component tested in combination with the plant sample. The NMR testing is conducted on a liquid state sample of a solution containing dissolved plant sample and standard component. A pre-determined and known amount of standard component is present in the liquid state sample and provides a reference for calculating an estimated amount of natural rubber in the plant sample. The estimated amount of natural rubber in the sample can be used to quantify the amount of extractable rubber in the sampled plant.

    Methods for quantifying rubber content in a plant with NMR
    7.
    发明授权
    Methods for quantifying rubber content in a plant with NMR 有权

    公开(公告)号：US10578567B2

    公开(公告)日：2020-03-03

    申请号：US15540767

    申请日：2015-12-29

    申请人： Bridgestone Corporation

    发明人： Michael C. Davis ,  Yingyi Huang

    IPC分类号： G01N24/08 ,  G01R33/44 ,  G01R33/465 ,  G01N33/00

    摘要： Methods are described for quantifying an amount of natural rubber in a plant from a sample of the plant by obtaining a T1 spin-lattice relaxation rate or T2 spin-spin relaxation rate from a NMR apparatus, such as a low-field NMR apparatus operating at a magnetic field strength of 2 T or less. The NMR relaxation rates obtained from the plant sample are compared to reference relaxation data or plots. The plots can represent the weight percent polyisoprene versus T1 spin-lattice relaxation rate or T2 spin-spin relaxation rate. The reference relaxation data or plots are generated from testing the same type of plant as the sample.