HYDROPHILIC SURFACE-TREATING AGENT

• Main Authors: AIZAWA MASAYUKI, SASAKI KEIICHI, SAKATA HIDETAKE, HIRATA KOICHIRO, HONG GUANG, OGAWA TORU
• Format: Patent
• Language: English; Japanese
• Published: 03.12.2020
• Subjects: ADHESIVES; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DENTISTRY; DYES; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a hydrophilizing treating agent which need not use a viscous agent causing dirt, or a water-soluble macromolecular compound differing to a prior artificial tooth stabilizer for basically improving wearability of an unfit artificial tooth, the hydrophilizing treating agent being capable of improving wearability thereof by hydrophilizing a hydrophobic surface of a resin-made artificial tooth bed sticky surface and the like of a fit artificial tooth.SOLUTION: As the hydrophilizing treating agent is used a liquid dispersion obtained by dispersing, for example, a cellulose nanofiber having an average fiber width of 3 nm or more and 200 nm or less, and an average fiber length of 0.1 μm or more and 5.0 μm or less in water or a solvent containing water.SELECTED DRAWING: None 【課題】 適合義歯の樹脂製義歯床粘着面等の疎水性表面を親水化することにより、その装着性を改善できる親水化処理剤であって、基本的には非適合義歯の装着性を改善するための従来の義歯安定剤とは異なり、汚れの原因となる粘稠剤や水溶性の高分子化合物用いる必要のない親水化処理剤を提供すること。【解決手段】 水又は水を含む溶媒に、たとえば平均繊維幅３ｎｍ以上、２００ｎｍ以下であり、且つ平均繊維長が０．１μｍ以上、５．０μｍ以下であるセルロースナノファイバーを、分散させた分散液を親水化処理剤として使用する。【選択図】なし