폴리올 중 자화성 입자의 분산물, 그 제조 및 용도

• Main Authors: KOENIG CHRISTIAN, THIELBEER FRANK, DOROODIAN AMIR
• Format: Patent
• Language: Korean
• Published: 12.12.2019
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; INDUCTANCES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAGNETS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSFORMERS; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

본 발명은, 80 내지 260℃, 바람직하게는 100 내지 220℃, 보다 바람직하게는 160 내지 200℃ 범위의 온도에서, 산가가 0.1 내지 3.0의 범위인 폴리에스테롤 또는 폴리에테르 에스테르 폴리올로 이루어진 군으로부터 선택되는 폴리올과 자화성 입자의 기계적 혼합에 의해 폴리올 중 자화성 입자의 분산물을 제조하는 방법에 관한 것이다. The invention relates to a process for preparing a dispersion of magnetizable particles in polyol by mechanical mixing of the magnetizable particles at a temperature in the range of from 80 to 260° C., preferably 100 to 220° C., more preferably 160 to 200° C. with a polyol selected from the group consisting of polyesterols or polyether ester polyols having an acid number in the range of from 0.1 to 3.0.