Use of esterquats and/or amidoquats as additives in coolants for processing glass, silicon or carbides

摘要

#CMT# #/CMT# Use of esterquats and/or amidoquats as additives in coolants for processing glass, silicon or carbides, is claimed. #CMT# : #/CMT# Independent claims are also included for: (1) a concentrate comprising at least one compound (I) or (II) or their mixtures, which is used as a coolant during the processing of glass, silicon or carbides; (2) a coolant comprising the above concentrate (0.005-less than 5 wt.%) in water, and further additives, where the sum of weights of all components is 100 wt.%; and (3) processing glass-, carbide-, or silicon surfaces, comprising using the above coolant. #CMT#USE : #/CMT# The esterquats and/or amidoquats are useful as additives in coolants for processing glass, silicon or carbides. #CMT#ADVANTAGE : #/CMT# The esterquats and/or amidoquats are biodegradable. #CMT#INORGANIC CHEMISTRY : #/CMT# Preferred Components: The carbide comprises tungsten carbide, silicon carbide or magnesium carbide. #CMT#ORGANIC CHEMISTRY : #/CMT# Preferred Components: The additive comprises ammonium compounds of formula ((R1-N +>(R2)(R4-Y1-C(=O)-R5)-R3-Y1-C(=O)-R6) X ->) (I) or ((R1-N +>(R2)(R4)-R3-Y1-C(=O)-R5) X ->) (II). R1, R2 : CH 3, ethyl, propyl, isopropyl or ((C 2H 4-O) n-H); n : = 10; R3, R4 : (CH 2) mor (C 2H 4-O) m; m : = 5; R5, R6 : 5-30C hydrocarbon residue, preferably 6-24C alkyl (optionally saturated and optionally branched), preferably oleic acid-, behenic acid-, stearic acid-, palmitic acid- or isostearic acid group; X ->organic or inorganic monovalent anion, preferably methosulfate, ethosulfate, formate or acetate, where X ->is not halide; and Y1 : NH (preferred) or O, where X is not OH. #CMT#EXAMPLE : #/CMT# No suitable example given.