摘要:
Short-chain polyethlene glycol ethers corresponding to the formula:R.sup.1 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.2wherein:R.sup.1 is a linear or branched C.sub.6 -C.sub.18 alkyl or alkenyl radical,R.sup.2 is a C.sub.4 -C.sub.8 alkyl radical, andN is an integer of from 2 to 6,are used as foam-inhibiting additives for low-foam cleaning compositions.
摘要:
Foam-depressing additives comprising polyethyleneglycol ethers of formula IR.sup.1 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.2 (I)in which R.sup.1 represents a straight-chain or branched alkyl radical with 6 to 13 carbon atoms, R.sup.2 represents an alkyl radical with 1 to 3 carbon atoms and n is a number from 2 to 6, for low-foam, preferably sprayable cleaning agents.
摘要:
The invention relates to the use of alkoxyhydroxy fatty acids and the salts thereof having the general formula (I) ##STR1## wherein R.sup.1 represents a straight chain alkyl radical or a straight chain alkenyl radical having from 6 to 8 carbon atoms,R.sup.2 represents a straight chain or branched chain alkyl radical having from 1 to 18 carbon atoms, or a straight chain or branched chain alkenyl radical having from 2 to 18 carbon atoms,M represents hydrogen or an organic ammonium radical having one or more alkyl radicals or hydroxy alkyl radical attached to the nitrogen atom, andm represents an integer having a value of from 3 to 13,in an amount of from 0.01 to 10% by weight, based on the weight of oil, as corrosion inhibitors in oils and oil-containing emulsions.
摘要:
A liquid manual dishwashing detergent composition consisting essentially of alkyl glucoside and dialkyl sulfosuccinate. The composition provides improved detergency and foam stability against proteinaceous soils.
摘要:
Apparatus for broaching a cylindrical surface of a workpiece, in which at ast one broaching tool is mounted on a tool carrier rotatable about its axis and about the axis of the cylindrical surface of the workpiece clamped in a stationary position. The broaching tool is independently rotatable about its own axis, and the rotary motion of the tool is superimposed on the rotation of the carrier and consequently the revolving motion of the broaching tool. Since the workpiece is stationary during broaching, very high cutting speeds can be achieved. The broaching tool can be of small and lightweight construction so that it is especially suitable for an automatic tool change. In a preferred form, a plurality of broaching tools are utilized, the axes of which are spaced outwardly from and circumferentially about the axis of the workpiece.
摘要:
Block polymers usable as defoamers have the following formula ##STR1## in which R represents a glycerol or polyglycerol function having a degree of polymerization x of from 1 to 6 and the indices y is equal to (x-z+2), z is equal to (x-y+2), a is equal to 1 to 15, b is equal to 50 to 200 c is equal to 1 to 15, d is equal to 20 to 150 and e is equal to 1 to 15, with the proviso that the sums (a+c+e) is equal to 2 to 20, (b+d) is equal to 50 to 250 and (c+e) is equal to 1 to 15, and y has a value of at least 1.The block polymers are prepared by reaction of glycerol or polyglycerol having a degree of polymerization x with ethylene oxide, then with propylene oxide and, finally, again with ethylene oxide, preferably in the presence of alkaline etherification catalysts.
摘要:
Process for reducing the viscosity of aqueous concentrates of anionic surfactants by adding thereto a small quantity of a compound containing polyglycol ether groups; and the aqueous concentrates prepared thereby.