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公开(公告)号:US5122745A
公开(公告)日:1992-06-16
申请号:US386506
申请日:1989-07-28
申请人: Patrick B. Smith , David J. Moll
发明人: Patrick B. Smith , David J. Moll
IPC分类号: G01R33/30
CPC分类号: G01R33/30
摘要: A method and apparatus for determining the effects of pressure and/or dissoved gas on the molecular dynamics in solids, such as glassy polymers, or gases sorbed by the solids, involves the use of nuclear magnetic resonance (NMR) spectroscopy wherein a pressure resistant sample cell is combined with an NMR probe which in turn is subjected to a magnetic field, a diffusion gas being injected into the sample cell under varying pressure with resultant NMR spectra being collected and correlated.
摘要翻译: 用于确定压力和/或溶解气体对固体(例如玻璃状聚合物)或固体吸附的气体的分子动力学的影响的方法和装置涉及使用核磁共振(NMR)光谱,其中耐压样品 将细胞与NMR探针组合,NMR探针又受到磁场,扩散气体在变化的压力下被注入到样品池中,并收集并相关的NMR谱。
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公开(公告)号:US09260359B2
公开(公告)日:2016-02-16
申请号:US14345216
申请日:2012-09-14
申请人: Makoto N. Masuno , Douglas Cannon , John Bissell , Ryan L. Smith , Alex Benjamin Wood , Patrick B. Smith , Dennis A. Hucul , Katherine Brune
发明人: Makoto N. Masuno , Douglas Cannon , John Bissell , Ryan L. Smith , Alex Benjamin Wood , Patrick B. Smith , Dennis A. Hucul , Katherine Brune
IPC分类号: C07C51/16 , C07C51/255 , C07C2/86 , C07C2/52 , C07C15/08
CPC分类号: C07C51/16 , C07C2/52 , C07C2/862 , C07C2/865 , C07C15/08 , C07C2521/18 , C07C2527/02 , C07C2527/053 , C07C2527/08 , C07C2527/10 , C07C2527/122 , C07C2527/126 , C07C2527/128 , C07C2527/132 , C07C2527/133 , C07C2527/135 , C07C2527/138 , C07C2527/14 , C07C2527/16 , C07C2529/08 , C07C2529/14 , C07C2529/24 , C07C2531/02 , C07C2531/04 , C07C2531/12 , C07C15/06
摘要: The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose) and ethylene in the presence of an acid, such as a Lewis acid. For example, cellulose and/or hemicellulose may be converted into 2,5-dimethylfuran (DMF) and 2-methylfuran, which may be converted into para-xylene and toluene, respectively. In particular, para-xylene can then be oxidized to form terephthalic acid.
摘要翻译: 本公开提供了在酸例如路易斯酸存在下从可再生来源(例如纤维素,半纤维素)和乙烯生产对二甲苯,甲苯和其它化合物的方法。 例如,纤维素和/或半纤维素可以转化成2,5-二甲基呋喃(DMF)和2-甲基呋喃,其可以分别转化成对二甲苯和甲苯。 特别地,可以将对二甲苯氧化形成对苯二甲酸。
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公开(公告)号:US20140350294A1
公开(公告)日:2014-11-27
申请号:US14345216
申请日:2012-09-14
申请人: Makoto N. Masuno , Douglas Cannon , John Bissell , Ryan L. Smith , Marc Foster , Alex Benjamin Wood , Patrick B. Smith , Dennis A. Hucul
发明人: Makoto N. Masuno , Douglas Cannon , John Bissell , Ryan L. Smith , Marc Foster , Alex Benjamin Wood , Patrick B. Smith , Dennis A. Hucul
CPC分类号: C07C51/16 , C07C2/52 , C07C2/862 , C07C2/865 , C07C15/08 , C07C2521/18 , C07C2527/02 , C07C2527/053 , C07C2527/08 , C07C2527/10 , C07C2527/122 , C07C2527/126 , C07C2527/128 , C07C2527/132 , C07C2527/133 , C07C2527/135 , C07C2527/138 , C07C2527/14 , C07C2527/16 , C07C2529/08 , C07C2529/14 , C07C2529/24 , C07C2531/02 , C07C2531/04 , C07C2531/12 , C07C15/06
摘要: The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose) and ethylene in the presence of an acid, such as a Lewis acid. For example, cellulose and/or hemicellulose may be converted into 2,5-dimethylfuran (DMF) and 2-methylfuran, which may be converted into para-xylene and toluene, respectively. In particular, para-xylene can then be oxidized to form terephthalic acid.
摘要翻译: 本公开提供了在酸例如路易斯酸存在下从可再生来源(例如纤维素,半纤维素)和乙烯生产对二甲苯,甲苯和其它化合物的方法。 例如,纤维素和/或半纤维素可以转化成2,5-二甲基呋喃(DMF)和2-甲基呋喃,其可以分别转化成对二甲苯和甲苯。 特别地,可以将对二甲苯氧化形成对苯二甲酸。
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公开(公告)号:US07416698B2
公开(公告)日:2008-08-26
申请号:US10510060
申请日:2003-05-14
IPC分类号: G01N30/02
CPC分类号: G01N30/32 , G01N30/0005 , G01N30/02 , G01N30/461 , G01N30/52 , G01N33/44 , G01N2030/001 , G01N2030/324 , G01N2030/525 , G01N2030/528 , B01D15/34
摘要: A process for characterizing a sample comprising a population of linear macromolecules of interest (104) and a population of long chain branched macromolecules of interest (103), the process including four steps. The first step is to provide a flow through separating medium (100) and a liquid eluant (101) in which the macromolecules of interest dissolve, the separating medium defining flow through channels (102), the eluant flow rate and the average diameter of the channels being in a range so that the linear macromolecules of interest elute before the long chain branched macromolecules of interest (105) (106). The second step is to introduce a sample into the liquid eluant. The third step is to flow the liquid eluant under pressure through the channels (102) of the separating medium (100). The fourth step is to differentiate the linear macromolecules of interest (104) from the long chain branched macromolecules of interest (103) based on their successive elution volumes established in the third step such as by determining the refractive index of the successive elution volumes or by subjecting the successive elution volumes to size exclusion chromatography.
摘要翻译: 用于表征包含一组目标线性大分子(104)和一组感兴趣的长链支化大分子(103)的样品的方法,该方法包括四个步骤。 第一步是提供流过分离介质(100)和其中感兴趣的大分子的液体洗脱液(101)的流动,分离介质限定流过通道(102),洗脱液流速和平均直径 通道在一定范围内,使得目标线性大分子在感兴趣的长链支化大分子(105)(106)之前洗脱。 第二步是将样品引入液体洗脱液。 第三步骤是使液体洗脱液在压力下流过分离介质(100)的通道(102)。 第四步是基于其在第三步骤中建立的连续洗脱体积,例如通过确定连续洗脱体积的折射率或通过测定连续洗脱体积的折射率,或通过测定连续洗脱体积的折射率来区分感兴趣的线性大分子(104)与目标长链支化大分子(103) 对连续的洗脱体积进行排阻层析。
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