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1. 发明授权

US3999857A Refractive index detector 失效
$Refractive index detector$
标题翻译：折射率检测器
公开(公告)号：US3999857A
公开(公告)日：1976-12-28
申请号：US582064
申请日：1975-05-29
申请人： Donald J. David , David A. Shaw , Huel C. Tucker
发明人： Donald J. David , David A. Shaw , Huel C. Tucker
IPC分类号： G01N21/43 , G01N21/46
CPC分类号： G01N21/431
摘要： A refractive index detector is described comprising a waveguide, means for contacting said waveguide with a fluid, a light source and means to transmit light into said waveguide, means for detecting light exiting from said waveguide as an indication of the refractive index of said fluid and means to automatically change the angle of incidence of the light entering said waveguide in response to changes of refractive index of said fluid. A preferred embodiment of the detector for use as a detector for gradient elution chromatography has means to indicate the rate of change of refractive index. A preferred means to automatically change the angle of incidence of the light entering the waveguide is a movable prism. It is preferred to use a monochromatic light source in the detector. It is preferred to provide reference means for the detector to compensate for changes in intensity of the light output from said light source. A process for determining the refractive index of effluent from a gradient elution liquid chromatograph is described comprising continuously measuring the differential of the refractive index of said effluent to compensate for the change in refractive index resulting from the continuously changing composition of the elution solution.
摘要翻译：描述了一种折射率检测器，其包括波导，用于使所述波导与流体接触的装置，光源和将光透射到所述波导中的装置，用于检测从所述波导出射的光作为所述流体的折射率的指示; 用于响应于所述流体的折射率的变化而自动改变进入所述波导的光的入射角的装置。用作梯度洗脱色谱检测器的检测器的优选实施方案具有指示折射率变化率的装置。自动改变进入波导管的光的入射角的优选方法是可动棱镜。优选在检测器中使用单色光源。优选提供用于检测器的参考装置以补偿从所述光源输出的光的强度变化。描述了用于确定来自梯度洗脱液相色谱仪的流出物的折射率的方法，其包括连续测量所述流出物的折射率的差异，以补偿由洗脱溶液的连续变化的组成引起的折射率的变化。

2. 发明授权

US4048041A Electronic system for providing specificity in an electrochemical analytical device 失效
标题翻译：用于在电化学分析装置中提供特异性的电子系统
公开(公告)号：US4048041A
公开(公告)日：1977-09-13
申请号：US689287
申请日：1976-05-24
申请人： Donald J. David , Huel C. Tucker
发明人： Donald J. David , Huel C. Tucker
IPC分类号： G01N27/416 , G01N27/48
CPC分类号： G01N27/48
摘要： An electronic circuit is used to continuously determine the nitroglycerin ncentration in a sample solution of an electrochemical monitoring cell by controlling the applied potential to a cathode electrode of a three element cell. The cathode of the electrochemical cell is maintained at a desired potential by supplying a square wave modulated negative potential signal thereto and then measuring the difference in cell current between the cathode and anode elements at the start and finish of the pulse signal with a demodulator. Current from any additional reactions that are constant or that occur above a desired reduction potential within the electrochemical cell are automatically cancelled by a gating circuit which is electrically coupled to the demodulator.
摘要翻译：电子电路用于通过控制施加到三元电池的阴极的电位来连续地确定电化学监测电池的样品溶液中的硝酸甘油浓度。通过向其提供方波调制的负电位信号，然后用解调器测量在脉冲信号的开始和结束时阴极和阳极元件之间的电池电流的差异，将电化学电池的阴极保持在期望的电位。通过电耦合到解调器的选通电路自动地消除来自电化学电池内的所需还原电位以上或恒定的任何附加反应的电流。

3. 发明授权

US5030688A Ionomeric polyvinyl butyral 失效
标题翻译：离聚物聚乙烯醇缩丁醛
公开(公告)号：US5030688A
公开(公告)日：1991-07-09
申请号：US268319
申请日：1988-11-07
申请人： Ashok Misra , Donald J. David , Arijit M. DasGupta
发明人： Ashok Misra , Donald J. David , Arijit M. DasGupta
IPC分类号： B32B17/10 , C08F8/28 , C08F8/36 , C08F8/44
CPC分类号： B32B17/10761 , C08F8/44 , C08J5/18
摘要： Polyvinyl butyral resin containing a modification-promoting amount of up to about 15 mole % ionomeric groups which are preferably the metal sulfonate salt of an aldehyde chemically combined with oxygen atoms of adjacent precursor vinyl alcohol groups. Such resin is prepared from a precursor PVOH containing chemically bound ionic acid groups.

4. 发明授权

US5294384A Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet 失效
标题翻译：热塑性组合物和通过熔融混合地毯制备热塑性组合物的方法
公开(公告)号：US5294384A
公开(公告)日：1994-03-15
申请号：US37140
申请日：1993-03-25
申请人： Donald J. David , Jerauld L. Dickerson , Thomas F. Sincock
发明人： Donald J. David , Jerauld L. Dickerson , Thomas F. Sincock
IPC分类号： B29B13/02 , B29B17/00 , C08J11/06 , B29B47/00
CPC分类号： C08J11/06 , B29B13/022 , B29B17/0026 , B29K2009/06 , B29K2023/00 , B29K2077/00 , B29L2031/7322 , Y02W30/62 , Y02W30/701 , Y10S264/916
摘要： The present invention is directed to a process for forming a thermoplastic composition from carpet wherein a carpet sample are melt blended without separating the carpet into its component parts. The process of the present invention produces a thermoplastic composition useful as a substitute for virgin thermoplastics in a variety of applications.
摘要翻译：本发明涉及一种用于从地毯形成热塑性组合物的方法，其中将地毯样品熔融混合而不将地毯分离成其组分部分。本发明的方法生产可用作各种应用中的原始热塑性塑料的替代物的热塑性组合物。

5. 发明授权

US5137954A Polyvinyl butyral sheet 失效
标题翻译：聚乙烯醇缩丁醛片
公开(公告)号：US5137954A
公开(公告)日：1992-08-11
申请号：US767760
申请日：1991-09-30
申请人： Arijit M. DasGupta , Donald J. David , Roland J. Tetreault
发明人： Arijit M. DasGupta , Donald J. David , Roland J. Tetreault
IPC分类号： C08J5/18 , C08K5/00 , C08K5/11
CPC分类号： C08J5/18 , B32B17/10605 , B32B17/10761 , C08K5/0016 , C08K5/11 , C08J2329/14 , Y10T428/24
摘要： Sheet for safety glazings made of: a) polyvinyl butyral internally plasticized by the presence in the polymer of C.sub.7 to C.sub.15 aliphatic aldehyde groups and b) an external plasticizer in amount sufficient to provide a sheet glass transition temperature of about 25.degree. to 30.degree. C.
摘要翻译：由以下制备的安全玻璃板：a）通过在C7至C15脂族醛基团的聚合物中存在而内部增塑的聚乙烯醇缩丁醛和b）足以提供约25至30℃的玻璃化转变温度的外部增塑剂。

6. 发明授权

US4999078A Reducing blocking and increasing flow of plasticized polyvinyl butyral sheet 失效
标题翻译：减少塑化聚乙烯醇缩丁醛的阻塞和增加流动
公开(公告)号：US4999078A
公开(公告)日：1991-03-12
申请号：US268317
申请日：1988-11-07
申请人： Ashok Misra , Donald J. David , Arijit M. DasGupta
发明人： Ashok Misra , Donald J. David , Arijit M. DasGupta
IPC分类号： B32B17/10 , C08F8/00 , C08F8/28
CPC分类号： C08F8/00 , B32B17/10761 , C08F8/28
摘要： A process for increasing both resistance to blocking and flow during laminating of plasticized polyvinyl butyral sheet which comprises incorporating into the formulation of the sheet a block-reducing and flow-promoting amount, preferably up to about 10 mole %, of ionomeric groups chemically bound to oxygen atoms of adjacent precursor vinyl alcohol groups.
摘要翻译：一种在增塑聚乙烯醇缩丁醛片层压期间增加阻力和流动性的方法，其包括将片剂的制剂减少和促进流动的量，优选至多约10摩尔％的离聚物基团化学键合到相邻前体乙烯醇基团的氧原子。

7. 发明授权

US4704163A Printing ink 失效
标题翻译：印刷油墨
公开(公告)号：US4704163A
公开(公告)日：1987-11-03
申请号：US693995
申请日：1985-01-23
申请人： Eugene L. Baratto , Donald J. David , Bernard S. Truskolaski , Maan-Shi S. Wu
发明人： Eugene L. Baratto , Donald J. David , Bernard S. Truskolaski , Maan-Shi S. Wu
IPC分类号： C09D11/02 , C08B21/08
CPC分类号： C09D11/03 , Y10T428/28 , Y10T428/2839
摘要： Ink composition comprising a conventional flexographic ink stock, a low adhesion backsize compound, and, optionally, a chlorinated polyolefin. This ink composition can be used to print on webs, e.g. tapes, bearing a low adhesion backsize on one major surface thereof and a pressure-sensitive adhesive on the other major surface thereof.
摘要翻译：油墨组合物包含常规的柔性油墨原料，低粘度背胶化合物和任选的氯化聚烯烃。该油墨组合物可用于在幅材上进行印刷。胶带在其一个主表面上具有低附着力，并且在其另一个主表面上具有压敏粘合剂。

8. 发明授权

US4050895A Optical analytical device, waveguide and method 失效
标题翻译：光分析装置，波导和方法
公开(公告)号：US4050895A
公开(公告)日：1977-09-27
申请号：US724035
申请日：1976-09-17
申请人： Edgar E. Hardy , Donald J. David
发明人： Edgar E. Hardy , Donald J. David
IPC分类号： G01N21/55 , G01N21/77 , G01N21/22 , G01N33/16
CPC分类号： G01N21/7703 , G01N2021/7709 , G01N2021/7783 , Y10S359/90 , Y10S436/805 , Y10S436/807 , Y10T428/2964
摘要： A device for detecting a first material comprising (a) a waveguide having on a peripheral surface of the waveguide a second material which on contacting the first material selectively combines with the first material to measurably change the light transmitting capabilities of the waveguide, (b) a light source positioned to transmit light into the waveguide, and (c) means for measuring the light exiting from the waveguide. The waveguide described in the previous sentence is a new article of manufacture. The device is useful in a method for detecting a first material comprising the steps of (a) exposing a waveguide having on a peripheral surface of the waveguide a second material to an unknown material which may contain the first material, and second material upon being contacted by the first material selectively combines with the first material to measurably change the light transmitting capabilities of the waveguide; (b) transmitting light through the waveguide after exposure in step (a); and, (c) detecting the light transmitted in step (b) as a measure of the first material. The device and method can be used in either qualitative or quantitative analysis.
摘要翻译：一种用于检测第一材料的装置，包括：（a）在波导的外周表面上具有与第一材料接触的第二材料的波导选择性地与第一材料组合以可测量地改变波导的透光能力，（b）定位成将光传输到波导中的光源，以及（c）用于测量从波导出射的光的装置。上一句中描述的波导是新的制造品。该装置可用于检测第一材料的方法，包括以下步骤：（a）将具有第二材料的波导的外周表面上的波导暴露于可能包含第一材料的未知材料，以及在接触时的第二材料通过第一材料选择性地与第一材料组合以可测量地改变波导的光传输能力; （b）在步骤（a）中曝光后透过光波导; 和（c）检测在步骤（b）中传输的光作为第一材料的量度。该设备和方法可用于定性或定量分析。

9. 发明授权

US5594069A Process for producing mixed poly(vinyl acetal)s 失效
标题翻译：制备混合聚（乙烯醇缩醛）的方法
公开(公告)号：US5594069A
公开(公告)日：1997-01-14
申请号：US387821
申请日：1995-02-17
申请人： Donald J. David , Nestor A. Rotstein
发明人： Donald J. David , Nestor A. Rotstein
IPC分类号： C08F8/28
CPC分类号： C08F8/28
摘要： A process for producing mixed poly(vinyl acetals) containing butyral acetal groups and long chain acetal groups derived from one or more aldehydes containing at least six C atoms, by conducting an acetalization reaction forming long chain acetal groups in the substantial of absence butyraldehyde until gel break occurs, adding butyraldehyde after gel break and continuing acetalization until the desired reaction endpoint is reached. Reaction temperature is from about 40.degree. C. up to the boiling point of water at the pressure of the acetalization reaction and preferably between about 75.degree. C. and about 98.degree..
摘要翻译： PCT No.PCT / US92 / 10510 Sec。 371日期：1995年2月17日 102（e）1995年2月17日PCT PCT 1992年12月4日PCT公布。第WO94 / 13710号公报日期1994年12月23日制造含有缩丁醛缩醛基的混合聚（乙烯醇缩醛）和由一种或多种含有至少6个C原子的醛衍生的长链缩醛基的方法，通过在实质上进行缩醛化反应形成长链缩醛基不存在丁醛直至发生凝胶破裂，凝胶断裂后加入丁醛并继续缩醛化直到达到所需的反应终点。在缩醛化反应的压力下，反应温度为约40℃至水的沸点，优选约75℃至约98℃。

10. 发明授权

US5591802A Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet 失效
标题翻译：热塑性组合物和通过熔融混合地毯制备热塑性组合物的方法
公开(公告)号：US5591802A
公开(公告)日：1997-01-07
申请号：US512133
申请日：1995-08-07
申请人： Donald J. David , Jerauld L. Dickerson , Thomas F. Sincock
发明人： Donald J. David , Jerauld L. Dickerson , Thomas F. Sincock
IPC分类号： B29B13/02 , B29B17/00 , C08J11/06 , C08J11/04
CPC分类号： C08J11/06 , B29B13/022 , B29B17/0026 , B29K2009/06 , B29K2023/00 , B29K2077/00 , B29L2031/7322 , Y02W30/62 , Y02W30/701 , Y10S264/916
摘要： The present invention is directed to a process for forming a thermoplastic composition from carpet wherein a carpet sample are melt blended without separating the carpet into its component parts. The process of the present invention produces a thermoplastic composition useful as a substitute for virgin thermoplastics in a variety of applications.
摘要翻译：本发明涉及一种用于从地毯形成热塑性组合物的方法，其中将地毯样品熔融混合而不将地毯分离成其组分部分。本发明的方法生产可用作各种应用中的原始热塑性塑料的替代物的热塑性组合物。

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