摘要:
Quaternary crosslinked products obtained by reacting triethanolamine condensates of the formula ##STR1## wherein n is an integer of from 1 to 3, with xylylene dichloride and their use as demulsifiers for oil-water emulsions, as lubricants and as auxiliaries in the paper industry.
摘要:
Glyoxylic acid and hydrochloric acid are reacted with an aromatic compound having at least one substituent group selected from among the alkyl, aryl, hydroxy, alkoxy and aryloxy groups. The glyoxylic acid is used in a concentration comprised between 60 and 100% and the hydrochloric acid is used in as concentrated an aqueous solution as possible, e.g. in an organic solvent medium such as acetic acid. An acid catalyst such as zinc chloride may be used. The reaction may be carried out under pressure. The products are useful in various syntheses e.g. to produce amino acids or arylacetic acids with medicinal uses.
摘要:
Aqueous metal working liquids containing a bis-sulfonamidocarboxylic acid of the formula ##SPC1##In the form of its water soluble or water dispersible salt with an alkali or an organic base, as corrosion protection and metal-working agent wherein R.sub.1 denotes hydrogen, halogen, alkyl and/or alkoxy of 1 to 3 carbon atoms, R.sub.2 denotes an alkylene radical having a total of 1 to 5 carbon atoms, and x denotes an integer of from 2 to 6.
摘要:
Compounds of the formula ##STR1## in which Y denotes an aryloxy group, which is possibly substituted, R.sub.4 and R.sub.5 denote hydrogen or C.sub.1 -C.sub.4 -alkyl, m denotes 0 to 12 and Z denotes polyalkylene glycol radicals having about 8 to about 200 ethylene glycol units --(CH.sub.2 --CH.sub.2 O)-- or up to about 200 ethylene glycol units and alkylene glycol units of the formula ##STR2## in which R.sub.6 is methyl or ethyl and in which at least 8 ethylene glycol units are present. These compounds are prepared by initially reacting epoxide with a phenol or naphthol and subsequently oxalkylating. The reaction products are used as dispersants for the preparation of aqueous pigment dispersions.
摘要:
Water-miscible corrosion inhibitors, substantially consisting of(A) reaction products of boric acid and diethanolamine, and(B) arylsulfonamidocarboxylic acids of the formula I ##STR1## in which R.sub.1 and R.sub.2 each represent hydrogen, fluorine, chlorine, bromine, an alkyl or alkoxy radical having from 1 to 4 carbon atoms, with the proviso that the sum of the carbon atoms of R.sub.1 and R.sub.2 does not exceed 7;Ar is a benzene, naphthalene or anthracene radical;R.sub.3 is hydrogen, an aryl radical having up to 4 carbon atoms, a .beta.-cyanoethyl or hydroxyalkyl radical having from 2 to 4 carbon atoms;R.sub.4 is an alkylene radical having more than 3 carbon atoms, optionally substituted by one or more methyl or ethyl radicals; andn is 1 or 2; oralkyl- and/or cycloalkylsulfonamidocarboxylic acids obtained by sulfochlorination of a saturated aliphatic and/or cycloaliphatic hydrocarbon having from 12 to 22 carbon atoms and a boiling temperature range of from about 200.degree. to 350.degree. C., subsequent reaction with ammonia and final condensation with chloroacetic acid.
摘要:
New compounds of the general formula II ##EQU1## in which one or two of the radicals R.sub.i (i = 1 to 7) stands for a linear or branched alkyl or alkenyl radical of 8 to 18 carbon atoms, one or two of the radicals R.sub.m (m = 2 to 6, m being .noteq. i) stands for the radical of the formula A ##EQU2## and the other radicals R.sub.k (k = 1 to 7, k being .noteq. i, m) stand for hydrogen or methyl, Y stands for hydrogen or an alkali metal ion, n is 2 or 3 and o and p are 0 or 1, their use as anti-microbially active surfactants in washing and cleansing compositions and disinfectants, and a process for preparing those compounds of formula II.
摘要:
Thus, the invention relates to compounds of the formula I ##STR1## where R is aromatic, preferably phenylene, R.sub.1 and R.sub.2 denote C.sub.1 -C.sub.4 -alkyl, preferably C.sub.1 -C.sub.2 -alkyl, R.sub.3 denotes methyl or ethyl, x and z together denote a number from 2 to 360, preferably from 2 to 140, y denotes a number from 15 to 70, preferably 25 to 60, n denotes a number from 1 to 10 and A.sup.- denotes an anion, preferably chloride or bromide, a process for their preparation and their use as demulsifiers for demulsifying crude oil emulsions and as corrosion inhibitors in equipment for lifting and processing natural gas and crude oil.
摘要:
Polymeric ethylene oxide/propylene oxide or ethylene oxide/butylene oxide ether carboxylic acids of the formula ##STR1## wherein R denotes methyl or ethyl, preferably methyl, A denotes hydrogen or a metal cation, preferably Na.sup.(+) or K.sup.(+), X and Z together denote a number from 2 to 360, preferably from 2 to 140, y denotes a number from 15 to 70, preferably from 25 to 70 and n denotes a number from 1 to 10, a process for their preparation and their use as surfactants.
摘要:
Dispersions of pigments, disperse- or vat-dyestuffs, wherein the dispersing agent is formed either by cocondensation of a phenolic component, formaldehyde and an alkali metal sulfite or of a sulfonated phenolic component and formaldehyde. These dispersions are characterized in that the dispersing agent used shows an improved dispersing effect. Furthermore, they can also be used when being neutralized for the dispersing alkali sensitive dyestuffs and they show no tendency to soil the fabrics so that also clean shades may be dyed.
摘要:
Bisamides of the formula ##STR1## wherein R denotes the alkyl skeleton of a dimerized fatty acid having 22 to 42, preferably 34, C atoms, R.sub.1 denotes hydrogen or a group of the formula--(C.sub.n H.sub.2n --X).sub.a --Z.sub.v --R.sub.2,R.sub.2 denotes hydrogen or a group --COR.sub.3, R.sub.3 denotes C.sub.1 -C.sub.22 -, preferably C.sub.8 -C.sub.22 -alkyl, X denotes an oxygen atom or a group of the formula N--B.sub.m, B denotes hydrogen, methyl, ethyl, benzyl or a group of the formula --Z.sub.v --R.sub.2, n denotes a number from 2 to 6, preferably 2 or 3, a denotes a number from 0 to 5, v denotes a number from 0 to 100, preferably 0 to 20, Z denotes a group of the formula --C.sub.2 H.sub.4 X(C.sub.3 H.sub.6 X).sub.b or CH.sub.2 --CHY O or C.sub.n H.sub.2n, b denotes a number from 0 to 5, preferably 0, 1 or 2, i denotes a number from 0 to 2(a+b)+2 and A denotes an anion, m denotes a number from 1 to 2 and Y denotes hydrogen, methyl or ethyl, a process for their preparation and their use as demulsifiers for crude oil emulsions.
摘要翻译:其中R表示具有22至42个,优选34个C原子的二聚脂肪酸的烷基骨架,R1表示氢或式 - (C n H 2n-X)a-Zv-R 2的基团, R 2表示氢或基团-COR 3,R 3表示C 1 -C 22 - ,优选C 8 -C 22 - 烷基,X表示氧原子或式N-Bm基团,B表示氢,甲基,乙基,苄基或基团 式为-Zv-R2,n表示2〜6的数,优选为2或3,a表示0〜5的数,v表示0〜100的数,优选为0〜20,Z表示 式-C2H4X(C3H6X)b或CH2-CHYO或CnH2n,b表示0至5,优选0,1或2的数,i表示0至2(a + b)+2的数,A表示 阴离子,m表示1至2的数,Y表示氢,甲基或乙基,其制备方法及其用作原油乳液的破乳剂。