| DONG-A TEACHING MATERIALS CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110303118 | RECRYSTALLIZATION TYPE OF INK COMPOSITION - A recrystallization type of ink composition comprises a solvent, a crystalline material, and a colorant. When the recrystallization type of ink composition is applied to a non-absorption surface such as a whiteboard, a glass surface, and a plastic surface, it is recrystallized to provide a visual effect of a metal sense at the applied part. | 12-15-2011 |
| 20110182650 | DRAW-OUT TYPE SOLID MAKER - Provided is a draw-out solid marker including: a cylindrical shell, a rotary member thread-fastened to the rear end of the shell; a movable member thread-fastened to the rotary member in the shell to move forward/backward from the shell by rotating the rotary member; a cylindrical solid core connected to the front of the movable member to move forward/backward with the movable member and having an elliptical, rectangular, or triangular cross-sectional shape; and a cap coupled to the front end of the shell in order to apply various patterns in accordance with the position of the front end. | 07-28-2011 |
| 20110171470 | BAR TYPE CLAY MEMBER FOR CRAFT - A bar type clay member for craft includes a body formed by heating and melting 50 wt % to 80 wt % of wax, adding 10 wt % to 40 wt % of body pigment and 1 wt % to 10 wt % of a colorant to the melted wax, and then melting and dispersing the body pigment and colorant in the wax, wherein the body has a thickness ranging from 0.3 mm to 10 mm and has a bar-like shape. | 07-14-2011 |
| 20110168054 | BAR TYPE CLAY FOR CRAFT - Bar type clay for craft including 50 wt % to 80 wt % of wax, 10 wt % to 40 wt % of body pigment, and 1 wt % to 10 wt % of a colorant, and formed to have a bar-like shape is provided. | 07-14-2011 |
| 20090293767 | TRANSPARENT SOLID MARKER - There is provided a transparent solid marker that has high bending strength and low writing resistance as stick-formed goods, is difficult to break or bend, generates few remnants while coating is carried out, and does not cause spreading of a writing surface even if it is coated on a surface which is written on by oily or aqueous writing implements. There is provided a transparent solid marker that is obtained by heating and mixing a composition including a gel forming material that includes an alkali metal salt or ammonium salt of an aliphatic carboxylic acid having 8 to 36 carbon atoms, a transparency agent, a subsidiary transparency agent, hydrogenated glucose syrup, a basic pigment, and oil, and cooling it. | 12-03-2009 |
