Abstract: The invention concerns a process for the manufacture of surface-active sulfophosphoric-acid-(partial)-alkyl-esters and their alkali-, alkaline earth-, ammonium- and amine salts by the sulfonation of phosphoric acid esters and subsequent hydrolysis of the sultone intermediate stages formed.

Abstract: A process for preparing surface-active, saturated sulfophosphoric acid-(partial)-alkyl esters and their alkali metal, alkaline earth, ammonium and/or amine salts by the sulfonation of saturated phosphoric acid-(partial)-alkyl esters and then hydrolysis of the sulfonated phosphoric acid esters formed.

Abstract: Copolymers of(A) monomers containing amino groups and corresponding to general formula (I) ##STR1## in which each of R.sup.1 and R.sup.2 independently represents a hydrogen or a methyl group; Z represents either an oxygen or a --NH-- group; n is an integer from 2 to 5; (C.sub.n H.sub.2n) represents a bivalent saturated hydrocarbon moiety that may be straight chain or branched and that contains n carbon atoms; and Q is selected from the group consisting of piperazino, piperidino, and morpholino groups and groups having the formula R.sup.3 --N--R.sup.4, with each of R.sup.3 and R.sup.4 independently representing a hydrogen or a C.sub.1-4 alkyl group; and(B) monomeric esters corresponding to general formula (II) ##STR2## in which each of R.sup.5 and R.sup.6 independently represents a hydrogen or a methyl group and R.sup.7 represents a C.sub.

Abstract: The efficiency of chromium utilization in chrome tanning of hides to make leather is greatly improved by performing the preliminary neutralization of the acid tanning liquor in the presence of an aldehydo or keto acid, before conventional subsequent neutralization with an alkali aluminum silicate. Most preferably, a combination of glyoxylic acid and magnesium oxide is used for the preliminary neutralization.

Abstract: Sulfited fats prepared by oxidation of fats with oxygen-containing gas mixtures and simultaneous or subsequent sulfitation using alkali and/or ammonium hydrogen sulfites, wherein the fats used are mixtures containing(A) fats having iodine numbers below about 100 and(B) fatty acid esters having iodine numbers of from about 60 to about 100 and containing from 12 to 24 carbon atoms in the linear or branched, natural and/or synthetic fatty acid residue and from 1 to 5 carbon atoms in the monofunctional alcohol residuethe ratio by weight of (A) to (B) being from about 9:1 to about 1:4.

Abstract: A method for imparting hydrophobicity and softness to leather and skins comprising treatment thereof with at least one sulfosuccinic acid monoamide of the formula ##STR1## wherein R and R' are, independently, H or a C.sub.12-24 alkyl, andone of x or y is SO.sub.2 and the other is H; either alone, or in sequence or simultaneously with at least one other hydrophobicizing agent, at least one impregnating agent, or at least one neutral oil; as well as a composition having the above ingredients.

Abstract: Sulfited fats prepared by oxidation of fats with oxygen-containing gas mixtures and simultaneous or subsequent sulfitation using alkali and/or ammonium hydrogen sulfites, wherein the fats used are mixtures containing(A) fats having iodine numbers below about 100 and(B) fatty acid esters having iodine numbers of from about 60 to about 100 and containing from 12 to 24 carbon atoms in the linear or branched, natural and/or synthetic fatty acid residue and from 1 to 5 carbon atoms in the monofunctional alcohol residue,the ratio by weight of (A) to (B) being from about 9:1 to about 1:4.

Abstract: A process for improving the adhesion of finishes to oiled and/or hydrophobicized leathers wherein oiled and/or hydrophobicized leathers are treated before prefinishing and/or in the prefinish with aqueous dispersions containing(A) short-chain and/or medium-chain alkyl ether phosphates and(B) finely divided, soft, urea-group-terminated, aliphatic anionic polyurethane dispersions.

Abstract: A process for leather tanning having the improvement of imparting waterproof properties to the leather by incorporating a sulfosuccinic monoester in the fatliquor.

Abstract: A leather fatliquoring agent and a process for its use in which the agent is a sulfosuccinic (C.sub.12-24 fatty residue) ester and an anionic or nonionic emulsifier. The agent is stable in the presence of tanning liquor electrolytes.

Abstract: A process for the sulfonation of certain fat and oil mixtures, the product of such process, and a method for using such product as a leather tanning stuffing agent, the certain fat and oil mixtures comprising (A) 20-80% by weight of at least one C.sub.8-24 -fatty acid glycerol ester having an iodine number above 20, and (B) the balance q.s. to 100% by weight of at least one C.sub.1-4 -aliphatic monoalcohol ester of a C.sub.8-24 -fatty acid having an iodine number of 50-100.

Abstract: A method and composition for fatliquoring during the leather and skin tanning process, in which an amphoteric surfactant is employed which is the condensation product of at least one C.sub.6-22 -fatty acid or corresponding ester with at least an aminoalkylalkanolamine followed by subsequent alkylation reaction with at least one vinylog compound.

Abstract: This invention relates to a process for producing waterproof leathers and skins by tanning, retanning, dyeing, stuffing, and fixing which is characterized in that, after tanning and, optionally, dyeing, stuffing agents (A) in the form of oxidized or oxidized and partly sulfonated long-chain hydrocarbons of waxes and impregnating agents (B) in the form of copolymers or from 60 to 95 mol percent of (meth) acrylic acid and from 5 to 40 mol percent of an ester, amide or nitrile of (meth) acrylic acid having a molecular weight of from 800 to 10,000 in salt form are successively used in the same bath, followed by acidification, fixing and finishing. The co-use of the impregnating agents (B) with the particular stuffing agents (A) results in much greater degree of resistance to water penetration than that obtained by the use of the stuffing agent (A), alone.

Abstract: This invention relates to a process for preparing sulfonated lubricating agents for leather and tanned furs consisting of the steps of:(a) chlorinating natural or synthetic higher fatty acids or esters of higher fatty acids having chain lengths of from 8 to 24 carbon atoms containing olefinically unsaturated fractions, up to saturation of the double bonds;(b) sulfochlorinating the chlorinated product from step (a) with chlorine and SO.sub.2 at a temperature of from about 20.degree. to 90.degree. C., optionally under UV-radiation, for a time sufficient to obtain a compound having a chlorine content of from about 5 to 30 percent by weight and a content of SO.sub.2 Cl groups of from about 1 to 20 percent by weight, the ratio of chlorine atoms to SO.sub.2 Cl groups being from about 0.7:1 to 70:1; and(c) saponifying the product from step (b) to form a water-emulsifiable alkali metal, ammonium, or lower alkyl-ammonium salt of the product of step (b).

Abstract: This invention is directed to an improved process of oiling and impregnating leather or pelts in which the leather or pelts are contacted with one or more oiling substances in an aqueous liquor, wherein the improvement comprises using an alkylolamide ether sulfate or phosphate of fatty acids of the formulaR--CO--NH--(CH.sub.2).sub.n --O--(CH.sub.2 --CH.sub.2 --O).sub.m XwhereinR represents an aliphatic radical of from about 13 to 19 carbon atoms;n is a number of from 2 to 4;m is a number of from 1 to 4;X is --SO.sub.3 Y or --PO(OY).sub.2 ; andY is a sodium, potassium, or ammonium anionas an oiling substance in the liquor bath.