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    • 3. 发明授权
    • Compositions comprising refrigerant and lubricant and methods for replacing CFC and HCFC refrigerants without flushing
    • 包含制冷剂和润滑剂的组合物和用于更换CFC和HCFC制冷剂而不冲洗的方法
    • US09028707B2
    • 2015-05-12
    • US13391913
    • 2010-09-03
    • Barbara Haviland Minor
    • Barbara Haviland Minor
    • C09K5/04C10M171/00
    • C09K5/045C09K2205/11C09K2205/12C10M171/008C10M2203/0206C10M2203/1006C10M2203/1065C10M2207/085C10M2207/2835C10M2209/043C10M2209/1023C10N2220/302C10N2220/303
    • A composition comprising a refrigerant and a lubricant is disclosed, wherein the refrigerant comprises (i) a fluorocarbon selected from the group consisting of R125, R134a, R32, R152a, R143a, R218 and mixtures thereof, and (ii) a hydrocarbon selected from the group consisting of propane, n-butane, isobutane, n-pentane, isopentane, dimethyl ether, and mixtures thereof; the lubricant comprises (iii) a hydrocarbon-based lubricant component; and (iv) a synthetic lubricant component; and the synthetic lubricant component is less than 30% by weight of the total lubricant. Also disclosed are methods of replacing refrigerants in refrigeration or air conditioning systems containing a refrigerant comprising a CFC or HCFC and a lubricant. The methods involve adding to the system (a) a replacement refrigerant comprising (i) a fluorocarbon selected from the group consisting of R125, R134a, R152a, R32, R143a, R218 and mixtures thereof, and (ii) a hydrocarbon selected from the group consisting of propane, n-butane, isobutane, n-pentane, isopentane, dimethyl ether, and mixtures thereof; and (b) a synthetic lubricant component; wherein after refrigerant replacement the synthetic lubricant component is less than 30% by weight of the total amount of lubricant in the system.
    • 公开了包含制冷剂和润滑剂的组合物,其中制冷剂包含(i)选自R125,R134a,R32,R152a,R143a,R218及其混合物的碳氟化合物,和(ii)选自 由丙烷,正丁烷,异丁烷,正戊烷,异戊烷,二甲醚及其混合物组成的组; 润滑剂包括(iii)烃基润滑剂组分; 和(iv)合成润滑剂组分; 并且合成润滑剂组分小于总润滑剂的30重量%。 还公开了在包含CFC或HCFC和润滑剂的制冷剂的制冷或空调系统中替换制冷剂的方法。 所述方法包括向系统(a)添加替代的制冷剂,其包含(i)选自R125,R134a,R152a,R32,R143a,R218及其混合物的碳氟化合物,和(ii)选自以下的烃: 由丙烷,正丁烷,异丁烷,正戊烷,异戊烷,二甲醚及其混合物组成; 和(b)合成润滑剂组分; 其中在制冷剂更换后,合成润滑剂组分小于体系中润滑剂总量的30重量%。