Production of swelling mica

Abstract

Abstract PURPOSE:To produce the swelling mica having such the characteristics that it swells by absorbing the water content contained in air at the comparatively low heating temp. and also in a short heating time by adding lithium fluoride of the specified weight ratio to the talc powder, mixing it with each other and heat-treating it. CONSTITUTION:By weight ratio >=15% lithium fluoride is added to the talc powder and mixed with each other. The aimed swelling mica shown in 2LiF.3 MgO.4SiO2 is obtained by heat-treating the mixture at 650-780 deg.C. Since this swelling mica has such the properties that it absorbs water, swells and finally becomes the extremely fine ultrapulverized material, the nonflammable paper and the nonflammable paint can be produced by using this swelling mica as a basic material and mixing the other necessary inorganic material and organic material.

Inventors

• 👤 Hiroshi Tateyama
• 👤 博 立山
• 👤 Kunio Kimura
• 👤 邦夫 木村
• 👤 Kazuhiko Jinnai
• 👤 和彦 陣内
• 👤 Kinue Tsunematsu
• 👤 絹江 恒松

Bibliographic Details