摘要:
A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least two esters selected from the group consisting of a specific pentaerythritol ester such as an ester of pentaerythritol with a mono- or dicarboxylic acid, a specific polyol ester such as an ester of trimethylolethane with a mono- or dicarboxylic acid, a specific ester such as an ester of ethylene glycol and a dicarboxylic acid, and a specific polyol ester synthesized from a neopentyl type polyhydric alcohol, a monocarboxylic acid and a dicarboxylic acid; and further comprising at least one kind of an epoxy compound.
摘要:
A fluid composition for a refrigerator, which comprises a chlorine-free fluorocarbon refrigerant and a refrigerator oil, said refrigerator oil consisting essentially of a tetraester of pentaerythritol of formula (1) with both 2-ethylhexanoic acid and 3,5,5-trimethylhexanoic acid, said refrigerator oil exhibiting a pour point not higher than −10° C.
摘要:
A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least one kind of an ester selected from the group consisting of a specific pentaerythritol ester such as an ester of pentaerythritol with a mono- or dicarboxylic acid, a specific polyol ester such as an ester of trimethylolethane with a mono- or dicarboxylic acid, a specific ester such as an ester of ethylene glycol and a dicarboxylic acid, and a specific polyol ester synthesized from a neopentyl type polyhydric alcohol, a monocarboxylic acid and a dicarboxylic acid; and further comprising at least one kind of an epoxy compound.
摘要:
A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least one kind of an ester selected from the group consisting of a specific pentaerythritol ester such as an ester of pentaerythritol with a mono- or dicarboxylic acid, a specific polyol ester such as an ester of trimethylolethane with a mono- or dicarboxylic acid, a specific ester such as an ester of ethylene glycol and a dicarboxylic acid, and a specific polyol ester synthesized from a neopentyl type polyhydric alcohol, a monocarboxylic acid and a dicarboxylic acid; and further comprising at least one kind of an epoxy compound.
摘要:
A refrigerator oil mainly comprises, as a base oil, an ester of a carboxylic acid having a specific structure represented by the formula ##STR1## and at least one kind of an epoxy compound, which refrigerator oil is excellent in electrical insulating properties, stability to hydrolysis, wear resistance, non-hydroscopicity, compatibility with a hydrogen-containing halogeno carbon refrigerant, and thrmal stability and chemical stability.
摘要:
A fluid composition for refrigerators, which comprises [A] a halogenocarbon refrigerant, and [B] a synthetic lubricating oil comprising at least one carbonic acid ester selected from the group consisting of:[I] a carbonic acid ester represented by the general formula (1) ##STR1## wherein R.sup.1 and R.sup.2 are each an alkyl or dihydric alcohol residue, R.sup.3 is an alkylene, and a is 1-30,[II] a carbonic acid ester represented by the general formula (2) ##STR2## wherein X.sup.1 is --H or ##STR3## R.sup.4 -R.sup.6 are each an alkyl, cycloalkyl or neopentyl type polyol residue, R.sup.7 is an alkyl, b is 1 or 2, c is 0 or 1 (b+c=2), d is 0-30 and e is 1-3, and[III] a carbonic acid ester of which alcohol moieties are (i) a monohydric alcohol, (ii) a dihydric alcohol, and (iii) a neopentyl type polyol or dimer or trimer thereof.
摘要翻译:一种用于制冷器的流体组合物,其包含[A]卤代烃制冷剂,和[B]合成润滑油,其包含至少一种选自以下的碳酸酯:[I]由通式( (1)其中R1和R2各自为烷基或二元醇残基,R3为亚烷基,a为1-30,[II]由通式(2)表示的碳酸酯(2)其中X1是-H或者R4-R6各自是烷基,环烷基或新戊基型多元醇残基,R7是烷基,b是1或2,c是0或1(b + c = 2 ),d为0-30,e为1-3,和[III]其中一部分为(i)一元醇,(ii)二元醇和(iii)新戊基型多元醇的碳酸酯, 二聚体或三聚体。
摘要:
A synthetic lubricating oil comprising as a base oil at least one kind of a carbonic acid ester selected from the group consisting of:[I] a carbonic acid ester represented by the general formula (1) ##STR1## wherein R.sup.1 and R.sup.2 are each an alkyl or dihydric alcohol residue, R.sup.3 is an alkylene, and a is 0-30,[II] a carbonic acid ester represented by the general formula (2) ##STR2## wherein X.sup.1 is --H or ##STR3## R.sup.4 -R.sup.6 are each an alkyl, cycloalkyl or neopentyl type polyol residue, R.sup.7 is an alkyl, b is 1 or 2, c is 0 or 1 (b+c=2), d is 0-30, and e is 1-3, and[III] a carbonic acid ester of which alcohol moieties are (A) a monohydric alcohol, (B) a dihydric alcohol, and (C) a neopentyl type polyol or dimer or trimer thereof.
摘要:
A lubricating oil for refrigerating machines comprises polyoxyalkylene compounds represented by the formula (I): ##STR1## Wherein A is a residue obtained from a compound which has both a heterocyclic ring having an ether linkage therein and hydroxyl groups by eliminating the hydroxyl groups from the compound; R.sup.1 and R.sup.2 are each an alkylene group; R.sup.3 is an alkyl group; R.sup.4 is hydrogen atom or an alkyl group; a and b are each a positive integer and l, m, and n are each an integer of 0 or more; and a.multidot.1+b.multidot.m=2 to 100 and l+m+n=2 to 20; further, the polyoxyalkylene compounds have a hydroxyl value ranging from 0 to 30.0 mgKOH/g and satisfies the following formula (1) 0.5
摘要翻译:用于制冷机的润滑油包括由式(I)表示的聚氧化烯化合物:其中A是由具有醚键的杂环和通过除去羟基的羟基获得的残基得到的残基 化合物组; R1和R2各自为亚烷基; R3是烷基; R4是氢原子或烷基; a和b各自为正整数,l,m和n各自为0以上的整数; ax1 + bxm = 2〜100,l + m + n = 2〜20; 此外,聚氧化烯化合物的羟值为0〜30.0mgKOH / g,满足下式(1)0.5
摘要:
A refrigerator oil composition for a fluoroalkane refrigerant, which comprises a base oil composed principally of an oxygen-containing compound and, based on the total weight of the composition, 0.005-5.0 wt. % of a boron compound as an essential component.
摘要:
Lubricating oil compositions comprising a base oil and a halogen containing ester of phosphoric acid having a specified structure in an amount in the range of from 0.01 to 5 parts by weight relative to 100 parts by weight of the base oil, and lubricating oil compositions further comprising an epoxy compound in an amount in the range of from 0.1 to 5 parts by weight relative to 100 parts by weight of the base oil.