The invention relates to a biodegradable stopper comprising a casing of rigid biodegradable material, consisting of an annular body with a covered flank, and an internal ring of biodegradable elastic material the total width of which is equal to or smaller than the internal width of the annular body, comprising one or more internal recesses in which one or more portions of the ring fit.

The invention relates to a biodegradable stopper comprising a casing of rigid biodegradable material, consisting of an annular body with a covered flank, and an internal ring of biodegradable elastic material the total width of which is equal to or smaller than the internal width of the annular body, comprising one or more internal recesses in which one or more portions of the ring fit.

A container includes a bottom box and a top lid. The bottom box includes a containing space adapted to contain the contents. The bottom box has a tilted shape wherein the bottom box has one side height greater than another side height. The top lid includes an integrally formed lens and formed with a plurality of air holes on a top surface thereof. The top lid is removably assembled with the bottom box.

A retractable carrying container is provided, comprising an outer shell, an inner shell, and corresponding first and second threads. The outer shell is a hollow cylinder, and the inner shell is arranged inside the outer shell. An application head is installed on the inner shell. The outer surface of the inner shell has an upper stopper and a lower stopper, the upper stopper is arranged on the upper edge of the second thread, the lower stopper is arranged at the lower edge of the second thread, and the outer shell and the inner shell move with respect to each other by the interaction of the first thread and the second thread.

A retractable carrying container is provided, comprising an outer shell, an inner shell, and corresponding first and second threads. The outer shell is a hollow cylinder, and the inner shell is arranged inside the outer shell. An application head is installed on the inner shell. The outer surface of the inner shell has an upper stopper and a lower stopper, the upper stopper is arranged on the upper edge of the second thread, the lower stopper is arranged at the lower edge of the second thread, and the outer shell and the inner shell move with respect to each other by the interaction of the first thread and the second thread.

A fluorine-containing copolymer including tetrafluoroethylene units (a), ethylene units (b), and hexafluoropropylene units (c), a content of the tetrafluoroethylene units (a) in the total monomer units being 36.0 to 45.0% by mole; a content of the hexafluoropropylene units (c) in the total monomer units being 6 to 21% by mole; a mole ratio of the tetrafluoroethylene units (a) to the sum of the tetrafluoroethylene units (a) and the ethylene units (b), (a)/((a)+(b)), being 0.40 to 0.54; and a melt flow rate measured under the conditions of 230° C. and a load of 5 kg being 12 to 100 g/10 minutes.

An application brush for a cosmetic formula comprising: i) a base having a central axis and including a top surface that is perpendicular or substantially perpendicular to the central axis and a bottom that is spaced apart from the top surface along the central axis; and ii) a bundle of bristles that is mounted on the bottom of the base. Tips of bristles forming the bundle of bristles cooperate to define a virtual plane that is perpendicular or substantially perpendicular to the central axis, and the virtual plane has an oval shape.

A feed drive mechanism includes multiple feed containers configured to feed contents with rotation of rotatable feed tubes provided in lower portions of container tubes containing the contents, multiple gears connected to the feed tubes of the feed containers, and a single drive gear configured to mesh with the gears. The drive gear is configured to selectively mesh with and rotate the gears to cause the feed containers to feed the contents with timing that differs between the feed containers.

A cosmetics triangular container for cosmetics which includes: a cover in a triangular column shape including a first opening and having a hollow lower part thereof; an outlet body in a cylindrical shape positioned in the hollow lower part of the cover and moving together with the cover; an inner upper part having an inner space into which the cover and the cylindrical outlet body are inserted together; an inner lower part to which pressure is applied as the cover and the outlet body move up and down; and an outer container in a hollow triangular column shape into which the inner upper part and the inner lower part are to be inserted.

An apparatus for creating custom perfumes is disclosed. The apparatus may comprise a body that may hold perfume refills and a mixing chamber connected to the perfume refills via a plurality of valves. The apparatus may be controlled by a microcontroller. The apparatus may receive custom formulas for creating custom perfumes from users. Upon receiving the formula, the apparatus may determine the quantities of perfumes that are to be added from each perfume refill to create the custom perfume. Further, a vacuum pump connected to the mixing chamber is activated. The amount of time required to extract the determined quantity of perfume from the refills to the vacuumized mixing chamber is calculated. Finally, the valves are opened for the calculated amount of time to allow the vacuum generated in the mixing chamber to extract the determined quantities of perfumes from each perfume refill to create the custom perfume.