摘要:
[Subject]To provide the spherical carbon particles having a novel structure different from the conventional carbon particles, uniform in shape, well dispersible in solvents and easy to handle. [Solution]Spherical carbon particles of 5 nm to 100 μm in diameter having a void or voids enclosed by the carbon crystal wall, which particles have such a structure that the carbon crystal ends are exposed or the carbon net plane is looped at least at a part of the outer periphery of the particles, and an aggregate of spherical carbon particles of 5 nm to 100 μm in diameter having a void or voids enclosed by the carbon crystal wall, which aggregate has such a property that the ratio of the spherical carbon particles having a radial ratio in the range of 1.0 to 1.3 is not less than 40% by number.
摘要:
Fibrous fine carbon particles of a novel structure improved in dispersibility in the dispersing media are provided. These particles have a minor diameter of 5 nm to 5 μm and have a rugged structure in which the mean value of surface roughness defined by the following equation (I) is not less than 8.0%: Surface roughness(%)=((Sd−Hd)/Hd) (I) (In determination of surface roughness, surface ruggedness of the fine carbon particles is measured by AFM Tapping Mode, forming the two-dimensional images of the particles from the obtained data, then an arbitrary straight line is selected on the two-dimensional images, forming the outline from the above data corresponding to the said straight line, then a section of measurement (S) is selected, said section being an area where the length of the virtual straight line connecting the two points on the said outline is within the range of 20 to 35 nm, and with the length of the virtual straight line between the said two point being represented by Hd and the length of the actual outline between the two point being represented by Sd, surface roughness is calculated from the above equation (I); the section of measurement (S) is a portion where the deviation of the outline from the virtual straight line is ±0.5 Hd.)
摘要:
A process for producing a carbon structural body is provided, with which a carbon structural body having any of various nanostructures can be produced inexpensively and efficiently. The method includes forming a carbon-containing material into a pattern, coating the obtained pattern with a proto-shaped mold, and calcining and carbonizing the coated pattern.
摘要:
To provide the spherical carbon particles having a novel structure different from the conventional carbon particles, uniform in shape, well dispersible in solvents and easy to handle.Spherical carbon particles of 5 nm to 100 μm in diameter having a void or voids enclosed by the carbon crystal wall, which particles have such a structure that the carbon crystal ends are exposed or the carbon net plane is looped at least at a part of the outer periphery of the particles, and an aggregate of spherical carbon particles of 5 nm to 100 μm in diameter having a void or voids enclosed by the carbon crystal wall, which aggregate has such a property that the ratio of the spherical carbon particles having a radial ratio in the range of 1.0 to 1.3 is not less than 40% by number.
摘要:
The present invention relates to a cosmetic process which applies onto the skin a self-standing cosmetic sheet for the skin, comprising: • at least one biocompatible and/or biodegradable hydrophobic polymer layer • wherein • the self-standing cosmetic sheet has a thickness of from 10 to 1000 nm, preferably from 30 to 500 nm, and more preferably from 50 to 300 nm. The cosmetic sheet according to the present invention may comprise at least one cosmetic active ingredient. The cosmetic sheet used in the present invention is very thin and not easily perceived on the skin; can be prepared with a variety of materials such as a biocompatible and/or biodegradable material, preferably non-cross-linked poly(lactic acid) or a combination of chitosan and alginic acid; and can adhere well onto the skin without any adhesive layer so that it is less irritable or no irritable to the skin.
摘要:
The present invention relates to a cosmetic process which applies onto the skin a self-standing cosmetic sheet for the skin, comprising: ⋅at least one biocompatible and/or biodegradable hydrophobic polymer layer ⋅wherein ⋅the self-standing cosmetic sheet has a thickness of from 10 to 1000 nm, preferably from 30 to 500 nm, and more preferably from 50 to 300 nm. The cosmetic sheet according to the present invention may comprise at least one cosmetic active ingredient. The cosmetic sheet used in the present invention is very thin and not easily perceived on the skin; can be prepared with a variety of materials such as a biocompatible and/or biodegradable material, preferably non-cross-linked poly(lactic acid) or a combination of chitosan and alginic acid; and can adhere well onto the skin without any adhesive layer so that it is less irritable or no irritable to the skin.
摘要:
A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 μm or smaller.
摘要:
A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 μm or smaller.
摘要:
A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 μm or smaller.
摘要:
A biomaterial structure containing a larger amount of biomaterial than the conventional art with maintaining the reactivity of the biomaterial is provided by linking particulate lumps in which the biomaterial is bound with a compound capable of binding to the biomaterial, wherein the particle diameter of the particulate lumps is 10 μm or smaller.