WATER-ABSORPTIVE COMPRESSION MOLDED BODY

• Main Authors: TAMAGAWA KOUSHIN, ASANO KENZO
• Format: Patent
• Language: English
• Published: 03.12.1993
• Edition: 5
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PURPOSE:To obtain a molded item which is convenient to be carried with and is excellent for treating vomitted items in a car, a boat, a platform, etc., treating discharges of domestic animals, pets, etc., and treating sludges, etc., by mixing a wooden powder or an org. fiber with a highly water-absorptive resin and molding the mixture. CONSTITUTION:A wooden powder (e.g. a sawdust) or an org. fiber (e.g. a cotton) and a highly water-absorptive resin (e.g. a crosslinked product of a salt of acrylic acid) are mixed and the mixture is compression-molded by heating. The compounding ratio (pts.wt.) of the wooden powder or the org. fiber to the highly absorptive resin is 99:1 to 70:30, pref. 97:3 to 80:20. For example, 97 pts.wt. sawdust being adjusted to a water content of 10% and 3 pts.wt. crosslinked product of sodium polyacrylate are mixed by means of a blender and the mixture is compression-molded by heating at 250-300 deg.C by means of an extruder to obtain a compression-molded item. In addition, this molded item can adsorb both water and an oil from a mixture of water and the oil.