AQUEOUS GEL INCLUDING RESIN PARTICLE EMULSION AND MANUFACTURING METHOD OF AQUEOUS GEL INCLUDING RESIN PARTICLE EMULSION

• Main Authors: KIJIMA KENJI, KANADAI SHUICHI, KOZUKA JUMPEI
• Format: Patent
• Language: English; Japanese
• Published: 28.12.2016
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide an aqueous gel including resin particle emulsion having suppressed separation sedimentation tendency, excellent in storage stability and capable of efficiently being used industrially regardless of having particle diameter of 500 nm or more, further 1000 nm or more and further a manufacturing method capable of stably manufacturing the aqueous gel including resin particle emulsion by a simple method excellent in polymerization stability.SOLUTION: There are provided an aqueous gel including resin particle emulsion containing a particle consisting of a core part consisting of a (meth)acrylic copolymer with acid value of 200 to 400 mgKOH/g and having alkali swelling property and a resin part including the core part and having no alkali swelling property, where the core part is aqueous gel including a solvent, thickness of the resin part is 10% or less of diameter of the particle and average particle diameter of the particle is 500 nm to 5000 nm and a manufacturing method of the emulsion.SELECTED DRAWING: Figure 1 【課題】粒子径が５００ｎｍ以上、更には１０００ｎｍ以上であるにもかかわらず、分離沈降傾向が抑制された、貯蔵安定性に優れる、工業上、有効に利用できる水性ゲル内包樹脂粒子エマルション、更には、上記優れた特性の水性ゲル内包樹脂粒子エマルションを、重合安定性に優れた簡便な方法で、安定して製造できる製造方法を提供すること。【解決手段】酸価が２００〜４００ｍｇＫＯＨ／ｇである（メタ）アクリル系共重合体からなるアルカリ膨潤性を有するコア部と、該コア部を内包するアルカリ膨潤性を有さない樹脂部とからなる粒子を含み、前記コア部が溶媒を内包した水性ゲルであり、前記樹脂部の厚みが、粒子の直径の１０％以下で、且つ、粒子の平均粒子径が、５００ｎｍ以上、５０００ｎｍ以下である水性ゲル内包樹脂粒子エマルション、該エマルションの製造方法。【選択図】図１