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    • 4. 发明授权
    • 자동차용 브레이크액 조성물
    • 자동차용브레이크액조성물
    • KR100391294B1
    • 2003-07-12
    • KR1020000072410
    • 2000-12-01
    • 현대자동차주식회사기아자동차주식회사
    • 김점섭
    • C10M127/02
    • PURPOSE: Provided is a brake liquid composition for cars which uses specific boron esters compound to improve a boiling point, a wet boiling point and so on compared to the existed brake so that it reduces car accidents by vapor lock in a brake system. CONSTITUTION: In the brake liquid composition for the cars which includes solvent, ointment, viscosity adjusting agent and additive, the brake liquid composition for the cars is characterized by comprising 20-90wt% of boron esters compound which are more than one species among boron ester compounds shown in a chemical formula(I) and (II). In the chemical formula(I), R1 is an alkyl group with 1-3 carbons and n+m is an integer from 2 to 5. In the chemical formula(II), R2 is an alkyl group with 1-4 carbons and X and Y is an integer from 2 to 4.
    • 目的:提供一种汽车用刹车液组合物,其与现有的刹车相比,使用特定的硼酸酯化合物来提高沸点,湿沸点等,从而通过汽车锁定在制动系统中来减少汽车事故。 本发明的汽车用制动液组合物,其特征在于,在含有溶剂,软膏,粘度调节剂和添加剂的汽车用制动液组合物中,其特征在于,含有硼酯中的1种以上的硼酯化合物20〜90重量% 化学式(I)和(II)中所示的化合物。 在化学式(I)中,R 1是具有1-3个碳的烷基,并且n + m是2至5的整数。在化学式(II)中,R 2是具有1-4个碳的烷基并且X Y是2至4的整数。
    • 9. 发明公开
    • 열전달 조성물
    • 热转印组合物
    • KR1020120128585A
    • 2012-11-27
    • KR1020120110619
    • 2012-10-05
    • 멕시켐 아만코 홀딩 에스.에이. 데 씨.브이.
    • 로우로버트이
    • C09K5/04C10M127/02
    • C09K5/045A23L27/11C08J9/146C09K3/00C09K3/30C09K2205/126C09K2205/22C11B9/025C11D3/43F01K25/08F25B45/00F28C3/06G06Q30/018Y02A40/965
    • PURPOSE: A heat transfer composition is provided to have a combination of beneficial properties such as good cooling performance, low inflammability, low GWP and/or miscibility with lubricants in comparison with existing coolants such as R-134a and R-1234yf. CONSTITUTION: A heat transfer composition comprises trans-1,3,3,3-tetrafluoropropene(R)-1234ze(E), difluoromethane(R-32), and 1,1-difluoroethane(R-152a), and additionally comprises 50 weight% or less of 1,1,1,2-tetrafluoroethane(R-134a). The composition has GWP of 150 or less, the temperature glide is 5K or less, volumetric refrigeration capacity is 10% or less of existing coolant to be replaced, and lower inflammability than single R-32, single R-152a or single R-1234yf. [Reference numerals] (AA) Flammability diagram of R32 : R152a 1:3 / R1234ze (E)/ at 23 °C and relative humidity of 50%; (BB) Nonflammable in case R1234ze(E)>67% v/v F/(F+H)>0.57
    • 目的:与现有的冷却剂如R-134a和R-1234yf相比,提供传热组合物以具有良好的冷却性能,低燃烧性,低GWP和/或与润滑剂的混溶性等有益性质的组合。 构成:传热组合物包含反式-1,3,3,3-四氟丙烯(R)-1234ze(E),二氟甲烷(R-32)和1,1-二氟乙烷(R-1​​52a),另外包含50 重量%以下的1,1,1,2-四氟乙烷(R-1​​34a)。 组合物的GWP为150以下,温度滑移为5K以下,容积制冷量为待更换的现有冷却剂的10%以下,并且比单个R-32,单个R-152a或单个R-1234yf具有更低的易燃性 。 (附图标记)(AA)R32:R152a 1:3 / R1234ze(E)/ 23℃,相对湿度50%的可燃性图; (BB)在R1234ze(E)> 67%v / v F /(F + H)> 0.57的情况下不可燃