Abstract: The present invention relates to a process for preparing leather by (I) tanning a pelt with (a) an aldehyde, or (b) a bisulphite-blocked polyisocyanate; (II) optionally, retanning the pelt with (a) a polyaspartic acid, a salt of a polyaspartic acid, a polyaspartic acid anhydride, or a mixture thereof, and/or (b) a polyaspartamide; (III) dressing the resultant product by (a) bottoming the product with a polyurethane and one or more natural bottoming assistants, and (b) applying a polyurethane and/or polyesteramide finish; and (IV) optionally, aftertreating the resultant dressed leather with a leather preservative.

Abstract: The present invention relates to a process for the preparation of microencapsulated polymers having a high surface smoothness, a soluble fraction of less than 6%, and a swelling index of between 1.3 and 9 by polymerizing a microencapsulated monomer mixture suspended in an aqueous phase containing at least one hydroxyaromatic compound as polymerization inhibitor, wherein the microencapsulated monomer mixture contains (a) 34 to 99.7% by weight of a monomer having one polymerizable C═C double bond, (b) 0.1 to 15% by weight of a crosslinking agent having at least 2 polymerizable C═C double bonds, (c) 0.2 to 1.0% by weight of at least one aliphatic peroxyester as polymerization initiator, and (d) 0 to 50% by weight of additives, the percentages being based on the sum of the components (a) to (c).

Abstract: Solid preparations of metal-containing or metal-free phthalocyanine dyes, a) which have an average particle size of greater than 100 &mgr;m, and b) which have a pH of greater than or equal to 10 when dissolved in 10 times the amount of water, are particularly suitable for the dyeing and printing of paper, after dissolution in water.

Abstract: Described is a process and, respectively, a composition for protecting articles which come into contact with salt water or brackish water. The compositions comprise as central component thiacloprid.

Abstract: The invention relates to aqueous pigment preparation containing an ionic alkoxylated styrene-phenol condensate or a mixture thereof with a hydroxy-terminated alkoxylated styrene-phenol condensate.

Abstract: The invention relates to the antifelt finishing of wool in which the wool is (a) first exposed to a plasma in a corona treatment and (b) subsequently treated with an aqueous dispersion of self-dispersing isocyanates.

Abstract: This invention relates to a process for preparing formulations comprising dyes and/or brighteners which possess at least one free SO3H and/or COOH group, in which an aqueous suspension comprising a) dyes and/or brighteners which possess at least one free SO3H and/or COOH group and b) inorganic synthesis salts is desalinated using a microfiltration membrane having pore diameters of from 0.05 to 40 &mgr;m.

Abstract: This invention relates to a process for preparing perylene pigment compositions by reaction of (a) a perylene tetracarboxylic compound; (b) about 0.01 to about 20% by weight, relative to the perylene tetracarboxylic compound, of a non-pigmentary cyclic anhydride or imide of formula (I) wherein W is O or NR1 (where R1 is hydrogen, a metal, or optionally substituted alkyl, cycloalkyl, aralkyl, or aryl), R2, R3, and R4 are various combinations of substituents and/or fused-on rings, and the dotted line is an optional double bond representing R2−C=C—R3; (c) ammonia or a primary alkyl, aralkyl, or aryl amine; optionally in the presence of (d) a solvent and/or (e) one or more dispersants.

Abstract: This invention relates to suspension polymers having high swellability have low contents of soluble fractions prepared using aliphatic peroxyesters as polymerization initiators.

Abstract: Metal complexes of an azo compound which in the form of its tautomeric structures conforms to the formula (I) wherein the substituents are each as defined in the description, and which metal complexes host a compound as guest compound, characterized in that they have a dispersing harshness of less than 250.

Abstract: The present invention relates to water-dispersible polyisocyanates obtained by reacting a) at least one polyisocyanate, b) at least one polyalkylene oxide polyether alcohol optionally containing ester groups, c) at least one quatemized tertiary aminopolyethylene oxide polyether alcohol, and d) optionally, further auxiliaries and additives.

Abstract: The invention relates to novel disazo dyes of the formula in which the substituents and indices have the meaning stated in the disclosure, that are suitable for dyeing and printing polymeric materials and for the preparation of recording liquids for ink jet recording apparatus.

Abstract: This invention relates to a process for preparing perfluoroalkyl aryl sulfides by reaction of disulfides with alkali metal salts of aliphatic perfluorocarboxylic acids in the presence of a high-boiling aprotic solvent at elevated temperature and reduced pressure, wherein the product formed is distilled off at the rate at which it is formed. This invention further relates to the novel compounds 2-nitrophenyl pentafluoroethyl sulfide and 2-aminophenyl pentafluoroethyl sulfide.

Abstract: The present invention relates to a process for preparing optionally substituted benzyl carbazates of formula (I) ##STR1## wherein each R.sup.1 independently represents C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, di(C.sub.1 -C.sub.4 -alkyl)amino, nitro, halogen, hydroxyl, the group X-R.sup.3, wherein X represents O or S and R.sup.3 represents straight-chain or branched C.sub.1 -C.sub.4 -alkyl, the group COOR.sup.4, wherein R.sup.4 represents C.sub.1 -C.sub.4 -alkyl, the group NR.sup.5 R.sup.6, wherein R.sup.5 and R.sup.6 independently represent C.sub.1 -C.sub.4 -alkyl, or a C.sub.3 -C.sub.6 -cycloalkyl group that is optionally substituted by straight-chain or branched C.sub.1 -C.sub.4 -alkyl groups, andn is an integer from 0 to 5,by reacting a dialkyl carbonate with an optionally substituted benzyl alcohol in the presence of a catalyst, separating off the resulting reaction mixture from the catalyst, and subsequently reacting the separated reaction mixture with hydrazine hydrate.

Abstract: UV-stabilized electrochromic assemblies having a layer structure, characterized in that one layer contains an electrically conductive, electrochromic polydioxythiophene and a further layer contains an inorganic ion-storage compound based on metal oxides or a mixture of such ion-storage compounds, where the gel electrolyte is chemically crosslinked and contains chemically bound UV absorbers which cannot migrate as UV protection.

Abstract: Novel C/N-- and B/C/N polymers which can be obtained by reaction of (a) a carbodiimide having the formula R.sub.3 E--NCN--ER.sub.3, in which R includes a group selected from the group consisting of alkyl groups and aryl groups, and E comprises a component selected from the group consisting of Si, Ge, and Sn, and (b) a halogenotriazine. Methods for making and using said polymers.

Abstract: In the preparation of substituted 4,4'-diaminostilbene-2,2'-disulfonic acid salts a clear increase in the reaction rate may be achieved by carrying out the reaction of the tetrachlorine derivative (III) with the aniline (IV) in the presence of the amine (VI) as acid-absorber.

Abstract: This invention relates to the use of triclocarban (N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl) urea; trichlocarbanilide) as an antibacterial active ingredient in liquid soaps.

Abstract: The present invention relates to a process for preparing compounds of formula (I) ##STR1## wherein A completes an unsubstituted or substituted heteroaromatic ring andB completes an unsubstituted or substituted aromatic ring, by reacting a heterocyclic compound of formula (II) ##STR2## wherein A completes an unsubstituted or substituted heteroaromatic ring, with an aromatic dicarboxylic acid of formula (III) ##STR3## or an anhydride thereof, wherein B completes an unsubstituted or substituted aromatic ring, in an organic solvent in the presence of an aliphatic or aromatic alcohol that is different from both the organic solvent and compounds (I), (II), and (III).

Abstract: The present invention relates to pigment preparations containing(a) at least one pigment having an average primary particle size of 0.1 to 50 nm selected from the group consisting of carbides, nitrides, borides, and silicides of the elements Ti, Zr, Hf, Si, Ge, and Sn,(b) at least one dispersant having a weight average molecular weight (M.sub.w) greater than 1000, and(c) water.The invention further relates to the use of such pigment preparations in inks for ink-jet printing.