| 摘要 |
PURPOSE:To obtain a pattern having a smooth surface and good dimensional accuracy in the stage of pouring a pattern material to a counter die of a templating material and manufacturing the pattern in a dental field, etc. by using a solid polymer for a material which coats preliminarily the surface of the counter die to contact with the pattern material. CONSTITUTION:The film of the solid polymer is formed on the surface of the counter die of the templating material such as alginate or agar to contact with the pattern material. The solid polymer is, for example, polydiene, polyalkene, polyvinyl, polyoxide, polyester, polycarbonate, polyamide, polysulfile, cellulose deriv., natural rubber, polysilane, etc. The method for forming the film is not particularly limited and such a method for evaporating the solvent from the solvent soln. of the polymer is more preferable. The hardly water soluble org. solvent is preferably as the solvent in order to smooth the surface of the pattern material. The intended pattern is obtd. by pouring the pattern material such as gypsum or resin into such coated counter die. |
