摘要:
A piezoelectric polymer material comprising a cured product of a composition comprised of an epoxy resin having at least two epoxy groups in the molecules, a compound having a molecular weight not less than 1200 and containing defined numbers of amino groups, benzene rings, carbonyl groups and methylene groups, and a crosslinking agent. The cured product has dipolarly oriented micro crystals therein. A method for making such a piezoelectric polymer material is also described, in which the resin composition is thermally cured and contacted with an electric field at a high temperature to cause dipolar orientation in the product. The dipoles are frozen by cooling the product while applying the electric field.
摘要:
A chip useful for treating cells and the like which has a mechanism and a structure wherein the size of a hole pattern is arbitrarily changed so that cells can easily move in and get out from the hole in scattering or collecting cells but can hardly get out from the hole during washing or antigen-stimulation. The chip comprises a crosslinked product of a temperature-responsive polymer as a constituting member and being provided with a film having a hole pattern on the surface of a baseboard. A method of producing the chip comprises applying a composition containing a crosslinkable temperature-responsive polymer on the surface of a baseboard to thereby form a coating film, crosslinking the coating film to thereby form the crosslinked product as described above and then forming a hole pattern on the coating film of the crosslinked product.
摘要:
The present invention is directed to a microwell array chip made of silicon and having multiple microwells. Each microwell is used to store a single specimen organic cell. Each microwell is of a size and shape holding just one organic cell, and the interior surface of the microwells are coated with a fluorocarbon film.
摘要:
[Problems] To provide a novel chip useful for treating cells and the like which has a mechanism and a structure wherein the size of a hole pattern is arbitrarily changed so that cells can easily move in and get out from the hole in scattering or collecting cells but can hardly get out from the hole during washing or antigen-stimulation.[Means for Solving Problems] A chip comprising a crosslinked product of a temperature-responsive polymer as a constituting member and being provided with a film having a hole pattern on the surface of a baseboard. A method of producing a chip which comprises a crosslinked product of a temperature-responsive polymer as a constituting member and is provided with a film having a hole pattern on the surface of the baseboard. This method comprises applying a composition containing a crosslinkable temperature-responsive polymer, a composition containing a crosslinkable temperature-responsive polymer and a crosslinking agent or a composition containing a temperature-responsive polymer and a crosslinking agent on the surface of a baseboard to thereby form a coating film, crosslinking the coating film to thereby form the crosslinked product as described above and then forming a hole pattern on the coating film of the crosslinked product.
摘要:
A magnetic composition which comprises 80 to 95 weight % of ferromagnetic powder, 5 to 20 weight % of highly heat-resistant thermosetting resin powder and 0.1 to 1 weight % of a metal chelate compound. Further, a process characterized in that all of the powders which comprise the magnetic composition are mixed together and molded under heat and pressure to produce a magnetic molding.The magnetic composition enables molding of materials of complicated form at low temperatures, and the obtained magnetic moldings are excellent in heat resistance, mechanical strength, mechanical workability and initial magnetic permeability.
摘要:
[Aims] To provide functional paste with etching activity and good electrical properties. [Means] Functional paste comprising a metal powder, an etching agent, a binder and an organic solvent.
摘要:
Conductive paint comprises an organic solvent having dissolved and dispersed therein a binder containing a thermosetting resin and a hydroquinone derivative which is a product resulting from reaction between a hydroquinone (polyhydric phenol) and a fatty acid having 10 to 20 carbon atoms, added to the thermosetting resin, metal powder as a conductive material, and preferably a fatty acid derived from natural oils and fats and having 10 to 20 carbon atoms. This conductive paint exhibits characteristics not inferior to those of the conventional Ag conductive paint, such as low specific resistance, high moisture resistance and high heat resistance, and is much less expensive than the conventional Ag conductive paint.
摘要:
To provide functional paste with etching activity and good electrical properties. Functional paste comprising a metal powder, an etching agent, a binder and an organic solvent.
摘要:
A microwell array chip having multiple microwells on a principal surface of a substrate, said microwells being of a shape and size permitting the storage of only a single organic cell in each microwell, wherein microwell markers are present on the same substrate surface as the openings of the microwells. A microwell array chip having multiple microwells on a principal surface of a substrate, said microwells being of a shape and size permitting the storage of only a single organic cell in each microwell, wherein protrusions are present in the openings of said microwells so as to narrow said openings. A method for manufacturing the microwell array chip. The method comprises the steps of: forming a film on at least one principal surface of a substrate; applying a resist coating on the film that has been formed; exposing the resist surface through a mask having a microwell pattern and removing uncured portions of resist; etching the exposed portions of said film and substrate to fabricate wells in the form of a microwell array; and removing the resist. A microwell array chip made of silicon and having multiple microwells, each microwell being used to store a single specimen organic cell, wherein each microwell is of a size and shape holding just one organic cell.
摘要:
A piezoelectric pressure-sensitive element comprising a dispersion of a dipolarly oriented ferroelectric ceramic powder in a cured product of a composition comprised of an epoxy resin having at least two epoxy groups in the molecules, a compound having defined numbers of amino groups, benzene rings, carbonyl groups and methylene groups, and a crosslinking agent. A methd for making such a piezoelectric pressure-sensitive element is also described, in which the resin composition comprising a ferroelectric ceramic powder is thermally cured and applied with an electric field at a high temperature to cause dipolar orientation of at least the ceramic powder.