SILICONE RESIN HOLLOW BODY AND MANUFACTURE THEREOF

摘要

PROBLEM TO BE SOLVED: To efficiently manufacture silicone resin hollow bodies as outer shells of capsules containing a gas which is expanded and becomes a foaming source by heating and breaking the capsules by using the thermally plastic silicone resin for the outer shells of capsules and specifying the average of the outer diameter of the capsules. SOLUTION: A solution produced by dissolving thermally plastic silicone resin such as methyl phenyl polysiloxane resin in a solvent such as dichloromethane is mechanically mixed and stirred with water to produce a dispersion solution. Then, silicone resin hollow bodies are produced by evaporating the solvent and water of the dispersion solution by spraying the dispersions solution to a hot gas current and at the same time solidifying the silicone resin in hollow spherical bodies in the atomized state. The silicone resin hollow bodies are capsules whose outer shell is made of the thermally plastic silicone resin and which contain a gas such as air in their insides. The average of the outer diameter of the capsules is set to be 0.1-100μm and the softening temperature of the capsules is within a range from 40 to 200 deg.C.