POLYOXALATE PARTICLE

• Main Authors: YOSHIKAWA SEISHI, KATAYAMA TADAYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 18.08.2016
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide polyoxalate particles which have hydrolyzability, circularity and a particle size that are suitable for hydraulic fracturing.SOLUTION: Polyoxalate particles have such circularity that an average particle diameter (D) is in a range of 300-1,000 μm and a ratio of minor axis/major axis is 0.8 or more.SELECTED DRAWING: Figure 1 【課題】水圧破砕に適した加水分解性、真円度及び粒径を有しているポリオキサレート粒子を提供する。【解決手段】平均粒径（Ｄ５０）が３００〜１０００μｍの範囲にあり、短径／長径比が０．８以上の真円度を有していることを特徴とする。【選択図】図１