RHEOMETER FOR RAPID MEASUREMENT OF SMALL QUANTITY OF SAMPLE

    公开(公告)号:JP2002082043A

    公开(公告)日:2002-03-22

    申请号:JP2001235427

    申请日:2001-08-02

    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

    公开(公告)号:CA2344755C

    公开(公告)日:2004-11-09

    申请号:CA2344755

    申请日:2001-04-18

    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, melt flow indexing, and rheology), among others.

    MICROSCALE FLASH SEPARATION OF FLUID MIXTURES

    公开(公告)号:CA2622416A1

    公开(公告)日:2007-03-22

    申请号:CA2622416

    申请日:2006-09-14

    Abstract: Systems, methods and apparatus implementing techniques for separating and/or analyzing fluid mixtures. The techniques employ microfluidic separation devices that include an inlet port for receiving a fluid feed stream, a microscale fluid flow channel in fluid communication with the fluid inlet port, a phase equilibrium control region located along the fluid flow channel for controlling conditions including temperature and/or pressure to provide a thermal equilibrium, a capillary network in the temperature control region, a first outlet port in indirect fluid communication with the fluid flow channel through the capillary network, and a second outlet port in direct fluid communication with the fluid flow channel. A plurality of microfluidic separation devices can be coupled in fluidic communication to provide for separation of complex mixtures. The systems, methods and apparatus can be used to characterize fluid mixtures.

    CONTINUOUS FEED PARALLEL REACTOR
    7.
    发明专利

    公开(公告)号:CA2351336C

    公开(公告)日:2005-05-17

    申请号:CA2351336

    申请日:1999-12-03

    Abstract: A method and apparatus (10) for reacting a plurality of different mixtures in parallel in a semi-batch or continuous mode is provided. Each reaction is contained within a reactor vessel (102), the reactor vessels (102) combined into a reactor block (100). Reactant(s) to be added during the reaction are kept in a header barrel (202), which has a plunger (402) to feed reactant(s) from the header barrel (202) through a transfer line (302) into the reactor vessel (102). The plunger (402) is moved using a drive system (500). The header barrels (202) are optionally combined in a header block (200). The header block (200) is seated to a plate (300) containing the transfer lines (302), which in turn is sealed to the reactor block (100). A latch mechanism (600) is provided for easy sealing of the reactor (100) and header blocks (200) to the plate (300). The entire apparatus (10) may be placed on a rocker or rotating plate for mixture as the reaction is proceeding.

    INSTRUMENT FOR HIGH THROUGHPUT MEASUREMENT OF MATERIAL PHYSICAL PROPERTIES AND METHOD OF USING SAME

    公开(公告)号:CA2344755A1

    公开(公告)日:2001-11-26

    申请号:CA2344755

    申请日:2001-04-18

    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.

    CONTINUOUS FEED PARALLEL REACTOR
    10.
    发明专利

    公开(公告)号:CA2351336A1

    公开(公告)日:2000-06-08

    申请号:CA2351336

    申请日:1999-12-03

    Abstract: A method and apparatus (10) for reacting a plurality of different mixtures i n parallel in a semi-batch or continuous mode is provided. Each reaction is contained within a reactor vessel (102), the reactor vessels (102) combined into a reactor block (100). Reactant(s) to be added during the reaction are kept in a header barrel (202), which has a plunger (402) to feed reactant(s) from the header barrel (202) through a transfer line (302) into the reactor vessel (102). The plunger (402) is moved using a drive system (500). The header barrels (202) are optionally combined in a header block (200). The header block (200) is sealed to a plate (300) containing the transfer lines (302), which in turn is sealed to the reactor block (100). A latch mechanism (600) is provided for easy sealing of the reactor (100) and header blocks (200) to the plate (300). The entire apparatus (10) may be placed on a rocke r or rotating plate for mixture as the reaction is proceeding.

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