摘要:
The method of activating aqueous solutions of percompounds utilizing hexacyclic ester-anhydrides of .alpha.-hydroxycarboxylic acids of the formula ##STR1## as activators, solid activated compositions comprising solid percompounds and said cyclic ester-anhydrides of .alpha.-hydroxycarboxylic acids, as activators.
摘要:
Mild-to-the-skin salts of anionic tensides of the sulfonate and sulfate type containing as the ion of opposite charge a highly basic protein aminolysate, and their use in washing, rinsing and cleansing compositions as well as in cosmetic preparations which extensively come into contact with the skin.
摘要:
Poly-N-acylalkyleneimines corresponding to the following formula ##STR1## are used as an oxidatively crosslinking constituent in paints. In formula (I), R--CO represents the acyl radical of a mono- or polyunsaturated, aliphatic C.sub.16-22 carboxylic acid or a mixture of such radicals, R'--CO represents the acyl radical of a C.sub.1-22 carboxylic acid or a mixture of such radicals and x and y represent the percentages by weight of the particular polymer units, x assuming values of 20 to 100% and preferably 20 to 95% and y assuming values of 80 to 0% and preferably 80 to 5%. The indices m and n independently of one another may assume the value 2 or 3.
摘要:
A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of (1) an alkaline compound selected from the group of alkali metal carbonates, bicarbonates and hydroxides and (2) optionally, heavy metal catalysts and inert diluents at temperatures of 200.degree.C to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering said ether polycarboxylic acid.
摘要:
2-benzyl-1-alkanol polyglycol ethers having the formula: ##STR1## in which R.sup.1 is a C.sub.6 to C.sub.22 alkyl group; R.sup.2 is a C.sub.2 -C.sub.6 alkylene group; and n is an integer from 1 to about 100.The products are produced by heating a mixture of a ratio of an alcohol having the formula:R.sup.1 --CH.sub.2 --CH.sub.2 OHwherein the symbol R.sup.1 has the same meaning as above with a ratio of from about 1 mole to about 10 moles, preferably 1 to 3 moles, of benzyl alcohol to a temperature of from about 180.degree. C. to 250.degree. C. in the presence of an alkali metal compound, and optionally a hydrogenation catalyst; separating the excess benzyl alcohol from the mixture and alkoxylating the alcohol thus obtained.The polyglycol ether are used as wetting agents, dispersants, emulsifiers and detergents.
摘要:
A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of a silicon compound selected from the group of alkali metal alkoxy-silanolates and alkali metal alkoxy-polysiloxanolates and, optionally, inert diluents at temperatures of 200.degree. to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering said ether polycarboxylic acid.
摘要:
A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of (1) an alkali metal alcoholate and (2) optionally, heavy metal catalysts and inert diluents at temperatures of 200.degree.C to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering the ether polycarboxylic acid.
摘要:
A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of an alkali metal alkoxy-silano-carbonate and, optionally, inert diluents at temperatures of 200.degree.C to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering said ether polycarboxylic acid.
摘要:
A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of (1) an alkali metal alkyl carbonate and (2) optionally, heavy metal catalysts and inert diluents at temperatures of 200.degree.C to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering the ether polycarboxylic acid.