TH69948B - The composition of lubricants for the freezer - Google Patents

Abstract

------ 13/06/2018 ------ (OCR) page 1 of the number 1 page invention summary. Freezer lubricant composition In addition to having all the necessary properties, including compatibility with hydrofluorocarbon refrigerants Ability to Heat resistance Ability to resist hydrolysis reaction And ability In moving flow at low temperatures It still has lubrication properties And stability at low temperatures, even After a long period of use, it is also good to not crystallize at low temperatures even after. It has been used for a long time, ie, it is a component of freezer lubricant with an ester derived from mixed alcohol and carboxylic acid. Pentaerythritol 65-99.95 mol% and Dipentaarithral amount of 0.05-35 mol%. The carboxylic acid mix is made up of acids. Normal pentanoic Naumal Heptanoic Acid And isonanoic acid. The mole ratio Between the amalpentanoic acid and the heptanoic acid, not less than 0.3 but not more than 10, and isonanoic acid contained in the carboxylic acid. Mix in a ratio with not less than 10% but less than 45% mole. Figure used None ------------ Composition of freezer lubricant. In addition to having all the necessary properties, including compatibility with freon refrigerants Heat resistance, ability to resist hydrolysis reaction And the ability to move Flows at low temperatures already It also has lubricating properties. And stability at low temperatures even after It is also good for long periods of time to not crystallize at low temperatures even after prolonged use, ie as a freezer lubricant. With an ester obtained from Mixed alcohol and carboxylic acid are mixed with the mixed alcohol that it contains. It comes up from the Pentaerythritol amount 65 ~ 99.95 mol%. And dipenta-ritthol, 0.05 ~ 35 mol%, while the mixed carboxylic acid is made up of n-pentenoic acid. Amalhepenic acid And isonanoic acid. The mole ratio between the amulphaneic acid Noil and naumal heptenoic acid are not lower than 0.3 but not more than 10 and isononanoic acid have Content in mixed carboxylic acid is not less than 10% mole but less than 45% mole ratio.

Claims (4)

Disclaimer (all) which will not appear on the advertisement page. : ------ 13/06/2018 ------ (OCR) Page 1 of 1 Page Disclaimer 1. Composition of freezer lubricant. Containing esters that are derived from Mixed alcohol and caric acid, where blended alcohol contains 65-99.95 moles percent of pentaethritol and 0.05-35 mol percent of dipentaeri. Thryitol, blended carboxylic acid contains naumalpentanoic acid, naumal heptanoic acid and isonananoic acid, molar ratio of amorphous acids. The amulpentanoic to the heptanoic acid was 0.3 or more and 10 or less, and isonanoic acid contained in the mixed carboxylic acid at the ratio. 10 moles percent or more and less than 45 mol percent, and where the average number of carbon atoms in the main chain of mixed carboxylic acids is Calculated based on the mole ratio of nomal pentanoic acid, naumal heptanoic acid, isonananoic acid in mixed carboxylic acids. And the mean of the number of hydroxyl groups of blended alcohols, that is, calculated on the mole ratio of the pentahrithral and dipentaethritol in the mixed alcohols. The following relationship 1.2 < (Average of the number of carbon atoms in the main chain of mixed carboxylic acid / value ≪ 1.5 2. Freezer-use fluid containing the lubricant component for Claim 1 freezer and chlorine-free hydrofluorocarbon refrigerant 3. Compressed refrigerant refrigeration equipment consisting of at least a compressor, condenser, expansion mechanism, evaporator and Fluid for use in the freezer of claim 2 ------------ 1. Composition of lubricant for freezer Which contains ester derived from mixed alcohol and carboxylic acid The blended alcohol contains 65 to 99.95 by mole of pentae rethrythol and 0.05 to 35% by mole of dipentareethritol. Mixed carboxylic acids contain n-pentanoic acid, n-heptanoic acid and isonanoic acid, mole ratio of n-pentanoic acid to n- acid. Heptanoic is 0.3 or more and 10 or less, and isonanoic acid is composed in mixed carboxylic acid at a rate of 10% by mole or more and less than 45%. By moles and by which the average number of carbon atoms in the main chain of mixed carboxylic acids was calculated on the basis Mole ratio of acids n-pentanoic, acid n-heptanoic, isopropanoic acid In mixed carboxylic acids and mean number of hydroxyl groups of mixed alkol were calculated on a ratio basis. Moles of pentaeithretol and dipentaithretol in mixed alcohols. Match the following relationships: 1.2_ < (Average number of carbon atoms in the main chain of mixed carboxylic acids / average number Of hydroxyl groups of mixed alcohols) _ < 1.5 2. Composition in claim 1, which when using the mole ratio of nomal pentenoic acid Naumal Heptenoic Acid And isonanoic acid In mixed carboxylic acids Calculate the mean of The number of carbon atoms in the main chain of mixed carboxylic acids And use mole ratios of pentahristitol and dipentaithralitol In mixed alcohol Calculate the mean of the number of groups The hydroxy acid in the alcohol has been mixed out. The ratio between the mean of the number of atoms of Carbon in the main chains of mixed carboxylic acids The average number of hydroxy groups in mixed alcohols was not less than 1.2 but not more than 1.5. 3.Fluid for use in the freezer Obtained by removing the lubricant composition For the freezer in claim 2, it is mixed with Freon without halogen refrigerant. 4.Refrigerant compression freezer That is, at the very least, a frozen device. Consisting of a compressed gas to become liquid The vapor condensation Gas expansion and liquid vaporization And use the freezer fluid in claim 2