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    RHEOMETER FOR RAPID MEASUREMENT OF SMALL QUANTITY OF SAMPLE
    31.
    发明专利
    RHEOMETER FOR RAPID MEASUREMENT OF SMALL QUANTITY OF SAMPLE 审中-公开

    公开(公告)号：JP2002082043A

    公开(公告)日：2002-03-22

    申请号：JP2001235427

    申请日：2001-08-02

    Applicant: SYMYX TECHNOLOGIES INC

    Inventor： HAJDUK DAMIAN ,  CARLSON ERIC ,  SRINIVASAN RAVI

    IPC: G01N19/00 ,  G01L1/16 ,  G01L1/24 ,  G01N3/02 ,  G01N3/24 ,  G01N11/14 ,  G01N11/16

    Abstract: PROBLEM TO BE SOLVED: To provide a small rheometer or the like capable of taking reliable measurements of a plurality of small quantities of samples in a short time. SOLUTION: The small rheometer includes a first substrate 100 and a second substrate 102 which form a pair of substrates each having a predetermined shape for retaining between the substrates a sample having a volume of not more than 200 μL, and an adjustment device for adjusting the interval between the substrates. The small rheometer causes shear strains within the sample by actuating the first substrate 100 and the second substrate 102 on a predetermined microscopic scale by means of a driving element 104 mechanically coupled to the first substrate 100. The small rheometer further includes a detection element outputting a position signal indicative of the displacement of at least one of the first and second substrates 100 and 102, and a feedback circuit which provides, based on the position signal, dynamic re-equilibrium about the force applied to the sample by the operation of the first and second substrates 100 and 102 on the microscopic scale.

    36.
    发明专利
    未知

    公开(公告)号：DE60125873D1

    公开(公告)日：2007-02-22

    申请号：DE60125873

    申请日：2001-07-13

    Applicant: SYMYX TECHNOLOGIES INC

    Inventor： VAN ERDEN LYNN ,  TURNER HOWARD ,  LOWE DAVID

    IPC: B01J19/00 ,  B01J3/04 ,  B01L3/00 ,  G01N35/02

    Abstract: An apparatus for use in parallel reaction of materials. The apparatus includes a base (32) having a plurality of reaction wells, each of the reaction wells (30) having a closed lower end (84) and open upper end for receiving reactant materials. A cover (34) is configured for sealing engagement with the base to form a housing enclosing the plurality of reaction wells and defining a common pressure chamber (26) in communication with the reaction wells. The apparatus further includes a flow restriction device (92) positioned adjacent to the open ends of the reaction wells to provide communication between the reaction wells and the pressure chamber while reducing cross-talk between the reactants and an inlet port (70) in communication with the pressure chamber for supplying pressurized fluid to the chamber to pressurize the reaction wells. The housing is configured to sustain a pressure substantially above atmospheric pressure.

    PARALLEL REACTOR WITH INTERNAL SENSING AND METHOD OF USING SAME
    39.
    发明专利
    PARALLEL REACTOR WITH INTERNAL SENSING AND METHOD OF USING SAME 未知

    公开(公告)号：CA2419700C

    公开(公告)日：2006-10-17

    申请号：CA2419700

    申请日：1999-08-12

    Applicant: SYMYX TECHNOLOGIES INC

    Inventor： NIELSEN RALPH B ,  HAJDUK DAMIAN A ,  DALES G CAMERON ,  TURNER HOWARD ,  MATSIEV LEONID ,  WANG PEI ,  VAN BEEK JOHANNES A M ,  VAN ERDEN LYNN ,  MCFARLAND ERIC ,  MANSKY PAUL

    IPC: B01J19/18 ,  B01J19/00 ,  G01N31/00 ,  G01N33/00 ,  G05B19/042 ,  G05D23/19

    Abstract: Devices and methods for controlling and monitoring the progress and properti es of multiple reactions are disclosed. The method and apparatus are especially useful for synthesizing, screening, and characterizing combinatorial libraries, but als o offer significant advantages over conventional experimental reactors as well. The apparatus generally includes multiple vessels for containing reaction mixtures, and systems for controlling the stirring rate and temperature of individual reaction mixture s or groups of reaction mixtures. In addition, the apparatus may include provisions for independently controlling pressure in each vessel, and a system for injectin g liquids into the vessels at a pressure different than ambient pressure. In situ monitorin g of individual reaction mixtures provides feedback for process controllers, and also provid es data for determining reaction rates, product yields, and various properties of the reaction products, including viscosity and molecular weight. Computer-based methods a re disclosed for process monitoring and control, and for data display and analysis.

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