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1. 发明授权

US5367260A Apparatus to obtain flow rates (melt index) in plastics via fixed frequency, pulsed NMR 失效
标题翻译：通过固定频率，脉冲NMR获得塑料中的流速（熔体指数）的装置
公开(公告)号：US5367260A
公开(公告)日：1994-11-22
申请号：US961264
申请日：1992-10-15
申请人： Ronald L. Dechene , Thomas B. Smith , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
发明人： Ronald L. Dechene , Thomas B. Smith , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
IPC分类号： G01F1/716 , G01R33/31 , G01R33/32 , G01R33/44 , G01R33/20
CPC分类号： G01R33/31 , G01N24/085
摘要： A pulsed NMR analysis system and process comprising an air curtain (137), sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay curves (C) , from which components functions are determined using linear or nonlinear regression techniques to correlate the curve components to the target nuclei and to flow rates in plastic including MI and FRR for polyethylene and MF for polypropylene.
摘要翻译：脉冲NMR分析系统和方法，其包括空气幕（137），样品通量系统（P，LI，V1，V2）和用户系统控制（104）以建立数字化的自由感应衰减曲线（C），组分函数使用线性或非线性回归技术确定曲线分量与目标核的关系，以及包括聚乙烯和MF的聚丙烯的MI和FRR在内的塑料流速。

2. 发明授权

US5408181A NMR system for measuring polymer properties 失效
标题翻译：用于测量聚合物性质的NMR系统
公开(公告)号：US5408181A
公开(公告)日：1995-04-18
申请号：US113833
申请日：1993-08-30
申请人： Ronald L. Dechene , Thomas B. Smith , David R. Day , Christian I. Tanzer , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
发明人： Ronald L. Dechene , Thomas B. Smith , David R. Day , Christian I. Tanzer , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
IPC分类号： G01N24/08 , G01R33/31 , G01R33/32 , G01R33/36 , G01R33/44 , G01R33/563 , G01R33/20
CPC分类号： G01N24/085 , G01R33/31 , G01R33/563
摘要： A pulsed nmr analysis system for polymers materials extracted from industrial processes at a mobility enhancing temperature (at or above glass transition temperature for amorphous polymers, at the crystalline transition temperature for crystalline and semi-crystalline polymers). The sample is measured via nmr techniques and results correlated to viscosity and melt index or melt flow (which are related to average molecular weights). The nmr system (in or out of resonance) includes: sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay curves (C), from which components functions are determined using linear or non-linear regression techniques to correlate the curve components to the target nuclei and to flow rates in plastics. Substantial improvement of correlation of nmr derived constants and equations of a free induction decay curve with the foregoing polymer properties is obtained via (1) conducting the nmr process at a mobility enhancing temperature (normally elevated compared to the industrial process temperature of the industrial process) and (2) holding temperature substantially constant at such elevated temperature.
摘要翻译：用于在工业过程中以迁移率增强温度（对于无定形聚合物的玻璃化转变温度以上，在结晶和半结晶聚合物的结晶转变温度下）提取的聚合物材料的脉冲nmr分析系统。样品通过nmr技术测量，结果与粘度和熔体指数或熔体流动相关（与平均分子量相关）。 nmr系统（进出谐振）包括：采样吞吐系统（P，LI，V1，V2）和用户系统控制（104）建立数字化的自由感应衰减曲线（C），从中可以使用线性或非线性回归技术来将曲线分量与目标核相关联，并使塑料中的流速相关。通过（1）以迁移率提高温度（与工业过程的工业过程温度相比通常升高）进行nmr工艺，获得具有上述聚合物性质的自由诱导衰变曲线的nmr导出常数和方程的相关性的显着改善，和（2）在这种升高的温度下保持温度基本恒定。

3. 发明授权

US5596275A NMR analysis of polypropylene in real time 失效
标题翻译：实时聚丙烯的NMR分析
公开(公告)号：US5596275A
公开(公告)日：1997-01-21
申请号：US625973
申请日：1996-04-01
申请人： Ronald L. Dechene , Thomas B. Smith , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
发明人： Ronald L. Dechene , Thomas B. Smith , Scott A. Marino , Ronald J. Tache , Ajoy K. Roy
IPC分类号： G01R33/389 , G01R33/44 , G01R33/46 , G01R33/20
CPC分类号： G01N24/085 , G01R33/389 , G01N24/082 , G01R33/4625
摘要： Pulsed NMR system for industrial measurements comprising sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay (FID) curves (C), from which fast Gaussian, slower modified Gaussian or preferably slower Gaussian, and exponential components are determined using a Marquardt-Levenberg iteration technique, and using regression techniques to correlate the FID curve components to the physical quantities of the target nuclei.
摘要翻译：用于工业测量的脉冲NMR系统包括采样吞吐系统（P，LI，V1，V2）和用户系统控制（104）以建立数字化的自由感应衰减（FID）曲线（C），从其中快速高斯，较慢修正的高斯或优选使用Marquardt-Levenberg迭代技术确定较慢的高斯和指数分量，并使用回归技术将FID曲线分量与目标核的物理量相关联。

4. 发明授权

US5519319A Obtaining measurements of improved accuracy of one or more polymer properties with an on-line NMR system 失效
标题翻译：使用在线NMR系统获得改进的一种或多种聚合物性质的精度的测量
公开(公告)号：US5519319A
公开(公告)日：1996-05-21
申请号：US491632
申请日：1995-06-19
申请人： Thomas B. Smith , Scott A. Marino , Ronald J. Tache , David R. Day , Christian I. Tanzer , Tadd B. Hughes , Ajoy K. Roy
发明人： Thomas B. Smith , Scott A. Marino , Ronald J. Tache , David R. Day , Christian I. Tanzer , Tadd B. Hughes , Ajoy K. Roy
IPC分类号： G01R33/389 , G01R33/44 , G01R33/46 , G01V3/00
CPC分类号： G01R33/389 , G01N24/085 , G01N24/082 , G01R33/4625
摘要： A nuclear magnetic resonance (NMR) system, and related method, develops two or more regression equations or models for a particular polymer property of interest (e.g., melt index or MI) during a calibration procedure using known samples of a material. The polymer material can be, for example, a plastic (e.g., polyethylene, polypropylene, or polystyrene) or a rubber (e.g., ethylene propylene rubber). Regression models for one or more discrete (i.e., two-valued) variables also are developed during calibration, and these models allow a prediction to be made about which of the two or more property (e.g., MI) models should be used for any particular sample of unknown material. The prediction obtained from the discrete variable model indicates which of the two or more models will produce the most accurate estimation of the property of interest for the unknown sample. The best model is thus selected, and then it is used to estimate the property of interest.
摘要翻译：核磁共振（NMR）系统和相关方法在使用已知材料样品的校准过程期间针对特定的感兴趣的聚合物性质（例如熔体指数或MI）开发两个或多个回归方程或模型。聚合物材料可以是例如塑料（例如聚乙烯，聚丙烯或聚苯乙烯）或橡胶（例如乙丙橡胶）。在校准期间，还开发了一个或多个离散（即二值）变量的回归模型，这些模型允许对两个或多个属性（例如，MI）模型中的哪一个应用于任何特定的模型进行预测未知材料样品。从离散变量模型获得的预测表明两个或更多个模型中的哪一个将产生未知样本的关注属性的最准确估计。因此选择最佳模型，然后用于估计感兴趣的属性。

5. 发明授权

US5319308A Real time magnetic resonance analysis with non-linear regression means 失效
标题翻译：实时磁共振分析采用非线性回归方法
公开(公告)号：US5319308A
公开(公告)日：1994-06-07
申请号：US959739
申请日：1992-10-13
申请人： Ronald L. Dechene , Thomas B. Smith , Scott A. Marino , Ronald J. Tache , Ajoy Roy
发明人： Ronald L. Dechene , Thomas B. Smith , Scott A. Marino , Ronald J. Tache , Ajoy Roy
IPC分类号： G01R33/31 , G01R33/44 , G01R33/46 , G01R33/20
CPC分类号： G01R33/31 , G01N24/085 , G01N24/082 , G01R33/4625
摘要： A pulsed NMR analysis system and process comprising sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay curves (C), from which components functions are determined using non-linear regression techniques to correlate the curve components to the target nuclei.
摘要翻译：包括采样吞吐量系统（P，LI，V1，V2）和用户系统控制（104）的脉冲NMR分析系统和过程以建立数字化的自由感应衰减曲线（C），使用非线性回归技术来确定组分函数将曲线分量与目标细胞核相关联。

6. 发明授权

US5302897A NMR analysis of polypropylene in real time 失效
标题翻译：实时聚丙烯的NMR分析
公开(公告)号：US5302897A
公开(公告)日：1994-04-12
申请号：US885633
申请日：1992-05-19
申请人： Ronald J. Tache , Ajoy Roy , Ronald L. Dechene , Thomas B. Smith , Scott A. Marino
发明人： Ronald J. Tache , Ajoy Roy , Ronald L. Dechene , Thomas B. Smith , Scott A. Marino
IPC分类号： G01R33/389 , G01R33/44 , G01R33/46 , G01R33/20
CPC分类号： G01N24/085 , G01R33/389 , G01N24/082 , G01R33/4625
摘要： Pulsed NMR system for industrial measurements comprising sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay (FID) curves (C), from which fast Gaussian, slower modified Gaussian and exponential components are determined using a Marquardt-Levenberg iteration technique, and using regression techniques to correlate the FID curve components to the physical quantities of the target nuclei.
摘要翻译：用于工业测量的脉冲NMR系统包括采样吞吐量系统（P，LI，V1，V2）和用户系统控制（104）以建立数字化自由感应衰减（FID）曲线（C），从其中快速高斯，较慢修正的高斯和指数使用Marquardt-Levenberg迭代技术确定组分，并使用回归技术将FID曲线组分与目标核的物理量相关联。

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