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| Number | Title | Issue Date |
| 4397649 | Water-soluble phthalocyanine sulfonyl cyanamide compounds, process for their manufacture and their use as dyestuffs Water-soluble phthalocyanine compounds of the formula ##STR1## and their salts, wherein Pc is the radical of the metal-free phthalocyanine or of a phthalocyanine containing metals, X means a hydrogen atom, R1 and R2 are a hydrog... | 08/09/1983 |
| 4390341 | Composition and process for producing pigmentation in hair or skin A composition and process for producing pigmentation in hair and skin is disclosed which employs non-mutagenic compounds to duplicate naturally occurring biosynthetic colors. The composition for imparting golden coloration comprises as active ingredients ... | 06/28/1983 |
| 4383833 | Natural edible dye preparation from bean husks giving red shades A natural, edible dye, characterized by particular infrared and ultraviolet spectra and a method for its production, in which cell walls of the skins of colored beans of the genus Phaseolus, such as black beans, are destroyed, the released dye is extracte... | 05/17/1983 |
| 4371637 | Mixtures of reaction products based on epoxides, primary amines and fatty acids and of aminoplast precondensates, their preparation and their use as leather dressings Mixtures of (1) reaction products obtained from (a) epoxides, for example polyglycidyl ethers of bisphenol A, (b) primary amines having 2 to 8 carbon atoms and (c) polymerized fatty acids, for example dimerized or trimerized linoleic acids and linolenic a... | 02/01/1983 |
| 4336027 | Dyeing and marking agent As an additive in dyeing and marking agents, 0.5 to 20% by weight of an alkali alcoholate, particularly the sodium or potassium salt of tertiary butanol, is used. The dyeing and marking agents have high contrast (PSC-value greater than 0.8) and have no co... | 06/22/1982 |
| 4333731 | Method and apparatus for the manufacture of tanned hides and skins A method for the wet processes in tanneries, e.g. soaking, liming, deliming, bating, pickling and tanning, wherein the liquids or solutions necessary for these processes are injected by high pressure into the hide or skin, and an apparatus for the realiza... | 06/08/1982 |
| 4318705 | Process for improving the lightfastness of conventionally dyed leather The invention relates to a process for improving the lightfastness of conventionally dyed leathers by treating the leathers before, during or after fatting with alkane and/or chloroalkane sulfonamides in amounts of about 0.1 to 8 weight percent, based on ... | 03/09/1982 |
| 4309180 | Anthraquinone compounds and the production and use thereof There are described new anthraquinone compounds which, in the form of the free acid, correspond to the formula I ##STR1## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms,... | 01/05/1982 |
| 4293543 | Process and composition for the coloration of keratin-containing substances A process and composition for coloring substances and tissues containing keratin, by means of an agent or co-reactant having a ketone or aldehyde function. An amino-acid, in particular a thio-amino-acid, is contacted with the substance to be colored. The ... | 10/06/1981 |
| 4272243 | Dyeing of grain leather A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mi... | 06/09/1981 |
| 4260389 | Finishing process A finishing process for porous fibrous materials, especially for textiles, especially a dyeing process, in the presence of relatively small amounts of water and a foaming agent, is carried out at a liquor to material ratio of about 0.25:1 to 5:1. This wat... | 04/07/1981 |
| 4190417 | Process for dyeing and printing sheets The present invention is concerned with a process for dry printing or dyeing of sheets. A foam structure is printed or dyed and placed in contact with the sheet to be treated. The composite is subjected to sufficient heat and pressure to destroy the foam ... | 02/26/1980 |
| 4160642 | Method for preparing dye solutions A method is disclosed for improving the solubility of Lewis acid dyes including metal chelate dyes and acid dyes, in solvents employing a copolymer based on a monomer containing a 5- or 6-membered heterocyclic tertiary amine. Dye solutions prepared by thi... | 07/10/1979 |
| 4155886 | Animal tattooing paste and method of making the same An improved animal carcass tattooing paste having substantially enhanced permanency when used to place identifying marks on carcasses, comprising from about 0.05% by weight to about 10.0% by weight of a sorbitan mono-fatty acid ester, from about 0.05% by ... | 05/22/1979 |
| 4101547 | 1,4-Diaminoanthraquinones 1,4-Diaminoanthraquinone derivatives containing a halopyrimidinyl or haloquinoxaline-6-carbonyl reactive group are useful as reactive dyestuffs for the dyeing or printing of leather and textile materials.... | 07/18/1978 |
| 4092104 | Process for making yellow, basic azomethine dyes A process for making yellow, basic azomethine dyes for paper, leather and textiles; the process being an improvement in the process of reacting an azo dye base precursor of the formula ##STR1## wherein A is phenyl or substituted phenyl, with dimethyl... | 05/30/1978 |
| 4077767 | Process for the preparation of concentrated solutions of urea compounds The invention relates to the preparation of storage-stable, concentrated solutions of urea compounds of the formula wherein F1 and F2 denote radicals of dyestuffs or dyestuff intermediates containing acid groups by reacting 2 equivalents ... | 03/07/1978 |
| 4040779 | Dry heat process to dyeing and printing organic material which can be dyed with cationic dyes A dry heat process for dyeing and printing organic material which can be dyed with cationic dyes, which process comprises the use of carbinol bases of cationic dyes or derivatives thereof, together with at least one indicator dye.... | 08/09/1977 |
| 4000958 | Method for treating leather A method for treating a leather, characterized by treating a leather with a polymer [II] obtained by polymerizing 5 to 2,000 parts by weight of at least one member selected from the group consisting of acrylic esters and methacrylic esters in which the al... | 01/04/1977 |
| 3997656 | Tissue staining method and composition A superior and extremely rapid histological staining method is described in which frozen tissue is briefly immersed in an aqueous solution comprising trichloroacetic acid, zinc chloride and formaldehyde and then in a second solution comprising hematoxylin... | 12/14/1976 |
| 3954397 | Method for preparing dye solutions A method is disclosed for improving the solubility of Lewis acid dyes including metal chelate dyes and acid dyes, in solvent employing a 5- or 6-membered heterocyclic tertiary amine. Dye solutions prepared by this process are useful in dyeing leather, in ... | 05/04/1976 |
