SELF-SUPPORTING HYDROGEL AND METHOD FOR PRODUCING SAME

• Main Authors: NAKAMURA, Arisa, NAGAI, Shiori, TAKENO, Hiroyuki
• Format: Patent
• Language: English; French; German
• Published: 04.11.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

There is provided a polymer/nanoparticle composite hydrogel that can be produced from an industrially readily available general-purpose material and has excellent mechanical and stretching properties.A hydrogel and a method for producing the same, the hydrogel having a self-supporting property and comprising a silicate salt (A), a polyalkylene glycol (B), and a dispersant (C) for the silicate salt, the hydrogel being characterized in that: the polyalkylene glycol (B) has a weight average molecular weight, number average molecular weight, or viscosity average molecular weight of 500,000 to 20,000,000; and the amount by mass of the polyalkylene glycol (B) is more than 2% by mass and 20% by mass or less relative to 100% by mass of the hydrogel.