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    RHEOMETER FOR RAPID MEASUREMENT OF SMALL QUANTITY OF SAMPLE
    1.
    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.

    INSTRUMENT FOR HIGH THROUGHPUT MEASUREMENT OF MATERIAL PHYSICAL PROPERTIES AND METHOD OF USING SAME
    7.
    发明专利
    INSTRUMENT FOR HIGH THROUGHPUT MEASUREMENT OF MATERIAL PHYSICAL PROPERTIES AND METHOD OF USING SAME 未知

    公开(公告)号：CA2344755A1

    公开(公告)日：2001-11-26

    申请号：CA2344755

    申请日：2001-04-18

    Applicant: SYMYX TECHNOLOGIES INC

    Inventor： CARLSON ERIC ,  FREITAG J CHRISTOPHER ,  HAJDUK DAMIAN ,  KOSOLOV OLEG

    IPC: G01N11/00 ,  B01L3/00 ,  G01N1/28 ,  G01N3/02 ,  G01N3/08 ,  G01N3/20 ,  G01N3/32 ,  G01N5/00 ,  G01N19/00 ,  G01N29/02 ,  G01N29/22 ,  G01N37/00 ,  G01N3/00

    Abstract: An apparatus and method for screening combinatorial libraries of materials by measuring the response of individual library members to mechanical perturbations is described. The apparatus generally includes a sample holder for containing t he library members, an array of probes for mechanically perturbing individual library members, and an array of sensors for measuring the response of each of the library members t o the mechanical perturbations. Library members undergoing screening make up a sample array, and individual library members constitute elements of the sample array that are confined to specific locations on the sample holder. During screening, the apparatus mechanically perturbs individual library members by displacing the sample array (sample holder) and the array of probes. Typically, all of the elements of the sample array are perturbed simultaneously, but the apparatus also can also perturb individual or groups of sample array elements sequentially. The flexible apparatus and method can screen librarie s of materials based on many different bulk physical properties, including Young's modulus (flexure, uniaxial extension, biaxial compression, and shear); hardness (indentation), failure (stress and strain at failure, toughness), adhesion (tack, loop tack), and flow (viscosity, meltflow indexing, and rheology), among others.

    RAPID CHARACTERIZATION OF POLYMERS
    9.
    发明专利
    RAPID CHARACTERIZATION OF POLYMERS 未知

    公开(公告)号：CA2527935A1

    公开(公告)日：1999-10-14

    申请号：CA2527935

    申请日：1999-04-02

    Applicant: SYMYX TECHNOLOGIES INC

    Inventor： LEE THOMAS S ,  FRECHET JEAN M J ,  DALES G CAMERON ,  KUEBLER SIGRID C ,  SAFIR ADAM ,  CARLSON ERIC ,  PETRO MIROSLAV ,  BENNETT JAMES ,  NIELSEN RALPH B

    IPC: G01N30/54 ,  G01N30/24 ,  G01N30/30 ,  G01N30/36 ,  G01N30/74 ,  G01N35/10

    Abstract: A method for characterizing a polymer sample that includes the steps of withdrawing a polymer sample from a sample container into an injection probe of an auto- sampler where the probe is heated to maintain the withdrawn sample at a temperature of not less than about 75 degrees Celsius while resident in the probe. The heated injection probe resides in a first environment maintained at about ambient temperature while withdrawing the polymer sample. The method further includes loading at least a portion of the withdrawn sample into an injection port or a loading port of a liquid chromatography system where the injection port or loading port is adaptable for fluid communication with a chromatographic column. The chromatographic column resides in a heated second environment maintained at a temperature of not less than about 75 degrees Celsius. The loaded sample is injected into a mobile phase of the liquid chromatography system. The sample is maintained at a temperature but not les s than about 75 degrees Celsius during a period of time including from when the sample is withdrawn from the sample container to when the sample is within the heated second environment. The injected sample is chromatographically separated and a property of the sample or a composition thereof is detected.

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