POLYUREA CROSSLINKED PARTICLE FOR TRANSPORTATION EQUIPMENT MEMBER AND SLIDING MEMBER

• Main Authors: SAKURAI TASUKU, NISHIDA KEIKO
• Format: Patent
• Language: English; Japanese
• Published: 05.01.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BEARINGS; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; FUELS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL PROCESSES OF COMPOUNDING; HEATING; LIGHTING; LUBRICANTS; LUBRICATING COMPOSITIONS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; WEAPONS; WORKING-UP

PROBLEM TO BE SOLVED: To provide a polyurea crosslinked particle for transportation equipment member high in acid resistance, enhancing oil retention property for long term when contained in a coated film and capable of maintaining high slidability over long time.SOLUTION: The polyurea crosslinked particle for transportation equipment member is a particle consisting of a reaction product of a self-emulsion type isocyanate having 2 or higher function and non-self-emulsion type isocyanate having a ring structure and 2 or higher function in presence of water and crosslinking density is 1×10or more.SELECTED DRAWING: None 【課題】耐酸性が高く、塗膜に含有させた際には長期の油保持性を高めて、長期にわたって高い摺動性を維持できる輸送機器部材用ポリウレア架橋粒子を提供する。【解決手段】本発明の輸送機器部材用ポリウレア架橋粒子は、２官能以上の自己乳化型イソシアネートと、環構造を有する２官能以上の非自己乳化型イソシアネートとの、水存在下での反応物からなる粒子であり、架橋密度が１×１０−４モル／ｇ以上である。【選択図】なし