摘要:
According to one embodiment of the present invention there is provided a method of producing a sheet of flexible gelled ceramic and/or metallic containing material, comprising the steps of: (a) combining water, ceramic and/or metallic powder, polymer, plasticiser, water soluble cross-linking agent precursor and optional further components to produce a mixture; (b) applying the mixture to a suitable substrate to form a layer of desired dimensions; (c) exposing the layer to conditions suitable for cross-linking to occur. According to another embodiment of the present invention there is provided a method of producing a ceramic and/or metallic component comprising the steps of: (a) combining water, ceramic and/or metallic powder, polymer, plasticiser, water soluble cross-linking agent precursor and optional further components to produce a mixture; (b) applying the mixture to a suitable substrate to form a layer of desired dimensions; (c) exposing the layer to conditions suitable for cross-linking to occur; (d) optionally removing from the substrate a flexible gelled material obtained following step (c); (e) optionally drying the flexible gelled material; (f) processing the flexible gelled material to desired shape; (g) firing flexible gelled material of desired shape to produce a ceramic and/or metallic component. Preferably the ceramic and/or metallic component is a component of a fuel cell, photo-voltaic cell, multi-layered capacitor or other micro-electronic component, prosthetic or surgical devices, refractory equipment, fibre optic device or transmission equipment.
摘要:
This invention provides plant arabinogalactan proteins (AGPs) and their genes. AGPs were isolated from Nicotiana alata, Nicotiana plumbaginafolia and Pyrus communis. Amino acid sequences of isolated AGP peptide molecules are presented. Isolated AGP molecules were used to synthesize oligonucleotide probes to prepare oligonucleotide primers for PCR or prepare RNA probes to screen cDNA libraries of N. alata, N. plumbaginafolia, and P. communis. cDNA clones encoding amino acid sequences of isolated AGP molecules were isolated. The invention presents for the first time an intact AGP amino acid sequence derived from a corresponding AGP gene. The instant invention further provides methods useful in obtaining AGP genes encoding an AGP peptide comprising a specific isolated hydroxyproline-rich (OAST-rich) sequence or a specific isolated hydroxyproline-poor sequence.
摘要:
Une composition de revêtement durcisable à l'aide d'un catalyseur vaporisé est formé en mélangeant un agent de réticulation poly-isocyanate avec un polymère acrylique dans un solvant dépourvu d'eau et ayant une bonne vitesse d'évaporation dans un système polymère uréthane acrylique. Ledit polymère acrylique a un poids moléculaire inférieur à 20.000, de préférence inférieur à 10.000, et une teneur comprise entre 15 et 50% en poids d'un monomère hydroxyle insaturé. Les monomères restants sont sélectionnés pour donner au polymère final une température de transition vitreuse comprise dans une plage allant de -40o à 55o.
摘要:
This invention provides plant arabinogalactan proteins (AGPs) and their genes. AGPs were isolated from Nicotiana alata, Nicotiana plumbaginafolia and Pyrus communis. Amino acid sequences of isolated AGP peptide molecules are presented. Isolated AGP molecules were used to synthesize oligonucleotide probes to prepare oligonucleotide primers for PCR or prepare RNA probes to screen cDNA libraries of N. alata, N. plumbaginafolia, and P. communis. cDNA clones encoding amino acid sequences of isolated AGP molecules were isolated. The invention presents for the first time an intact AGP amino acid sequence derived from a corresponding AGP gene. The instant invention further provides methods useful in obtaining AGP genes encoding an AGP peptide comprising a specific isolated hydroxyproline-rich (OAST-rich) sequence or a specific isolated hydroxyproline-poor sequence.
摘要:
The invention relates to methods of forming shaped articles from suspensions which include ceramic or metallic powder, or from solutions or suspensions which include one or more pharmaceutical substances or other components. The method comprises the steps of: (a) combining solvent, polymer, cross-linking agent precursor and optional further components and placing into a mould of desired shape; (b) increasing temperature of mould contents to activate cross-linking agent; (c) allowing mould contents to solidify to sufficient extent to remove mould; (d) removing shaped article from the mould.
摘要:
A coating composition curable with a vapourized catalyst formed by mixing a poly-isocyanate cross linking agent with an acrylic polymer in a water free solvent, having a good evaporation rate in an acrylic urethane polymer system, said acrylic polymer having a molecular weight below 20,000, preferably less than 10,000 and a content of 15 to 50% by weight of an hydroxy unsaturated monomer and the remaining monomers being selected to provide the final polymer with a glass transition temperature in the range of -40 C to 55 C.