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WO/1995/019451A1 |
Aqueous dispersions containing special aminopropionic acid derivatives and co-oligomers based on fatty crotonates are suitable for the fatty treatment of leather. The leathers thus treated exhibit good washing and cleaning resistance and...
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WO/1995/017444A1 |
The invention relates to water-soluble, acid-group-containing graft copolymers which are at least partly biodegradable based on polyhydroxy compounds and monoethylenically unsaturated carboxylic, sulphonic and/or phosphonic acids or thei...
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WO/1995/013400A1 |
Wet leather treating compositions and methods of wet treating leather hides employing alkylpolyglycosides for enhancing the penetration and absorption of the leather treatment formulations in an environmentally safe manner. The compositi...
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WO/1995/011047A1 |
A method of treating a collagenous biomaterial, such as porcine aortic valve leaflets or bovine pericardium, by exposing the biomaterial to an alcohol to inhibit in vivo calcification. The biomaterial, preferably glutaraldehyde-pretreate...
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WO/1995/010633A1 |
Process of integration between the cattle hide tanned, stuffed and dyed, with a film of polyurethane consisting of two chemical components, placed upon a matrix of paper, producing a clearly marked grain corresponding to the desired desi...
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WO/1995/008613A1 |
Sulphated polyol fatty acid esters have the formula (I), in which R1CO stands for a linear or branched, saturated and/or unsaturated acyl residue with 6 to 22 carbon atoms, R2 stands for hydrogen, an OCR1 residue or a SO3X residue, R3 st...
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WO/1995/005484A1 |
A graphite lubricated leather and a method for producing a graphite lubricated leather is provided. A chrome tanned leather having internal fiber matrix is lubricated by application of a graphite powder suspended in a gluteraldehyde solu...
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WO/1995/002072A1 |
A laminated composite material produced by covering a resilient base with leather, a hide or a by-product thereof resulting from flesh side cropping. For this purpose, a series of steps including stress analysis, shaving and sizing are p...
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WO/1995/001540A1 |
Drier which comprises: a loading unit (3) suited to convey the product to be treated (10) inside a drying chamber (2); a drying chamber (2); an unloading belt (4) which conveys the material outside the drier once the treatment has been c...
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WO/1994/026936A1 |
The invention provides a novel process and device for applying liquids (e.g. dyes) to the surface of leather or similar flat materials. According to the invention, a moving, open-pored, mesh-like belt (sieve) is displaced approximately p...
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WO/1994/026789A1 |
Novel polyacrylic acid resins are prepared by polymerizing a monomer selected from the group consisting of H2C=CHCO2X, H2C=CR1CO2X, HR2C=CHCO2X, HR2C=CR1CO2X, HR2C=CHCOX, H2C=CHCOX, H2C=CR1COX, HR2C=CR1COX, H2C=CHCSOvX, HR2C=CHCSOvX, HR2...
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WO/1994/025629A1 |
The present invention relates to a method of treating an animal skin comprising a hide and wool wherein said method comprises the step of treating the wool with a peroxide bleaching agent prior to tanning the hide.
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WO/1994/023072A2 |
A degreasing agent for skins, smoothed skins, pelts, leathers and the like based on non-ionogenic emulsifyers of the fatty alcohol alkoxylate type contains a mixture of (a) C12-18 fatty alcohol ethoxylates with in average more than 6 EO ...
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WO/1994/023255A1 |
The apparatus includes a main vacuum source (PA) that can be connected to a series of evaporation beds (1, 1', 1'') to product a negative pressure having a preset value in the beds, in steady-state operating conditions. There is a second...
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WO/1994/021828A2 |
A vacuum apparatus for industrial hide driers with multiple beds (2) includes a circuit with an open end (17) having arranged in a series: a vapor manifold (7) for each bed; a first condenser (8) inserted in each manifold; a first conden...
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WO/1994/021829A1 |
A method wherein a floral motif with empty spaces between the elements (2) thereof is placed on a template (1), and separate leather components (3) are prepared such that their outlines match the elements (2) of the floral motif. Each of...
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WO/1994/015978A1 |
The invention concerns biodegradable polymers made from a) monoethylenically unsaturated dicarboxylic acids and/or their salts; b) monoethylenically unsaturated monocarboxylic acids and/or their salts; c) singly unsaturated monomers whic...
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WO/1994/013716A1 |
The invention concerns copolymers made up of (a) 20-60 % by wt. of ethylenically unsaturated monomers with acid groups, (b) 40-80 % by wt. of ethylenically unsaturated glycerin derivatives in which one of the glycerin hydroxyl groups is ...
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WO/1994/013768A1 |
Sulphated fatty acid partial glycerides have the formula (I), in which R1, R2 and R3 represent independently from each other at least one aliphatic, linear or branched acyl residue with 6 to 22 carbon atoms, at least one sulphate group a...
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WO/1994/013839A1 |
In the method for casein finishing of leather transglutaminase is added to a casein solution, whereafter the thus formed solution is applied to leather, which is dried. Transglutaminase, which is not toxic, functions as a hardening agent...
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WO/1994/012671A1 |
A method of and apparatus for reducing the thickness of (or skiving) regions of sheet material workpieces, e.g. shoe upper components, involves feeding a workpiece (14) to a band knife (4) and, in advance of said knife, applying pressure...
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WO/1994/012471A1 |
The invention concerns the production of sulphited fats with a reduced free-bisulphite content by blowing unsaturated fats using prior art methods, sulphiting with sodium metabisulphite and finally binding unreacted hydrogen sulfite as s...
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WO/1994/012563A1 |
Methods for producing high-molecular products from materials containing collagen which may be used in light industry in the manufacture of leather-like material are described. A mass is produced from leather raw material by means for mac...
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WO/1994/012561A1 |
This invention relates to polysiloxanes having fluoroaliphatic- and carboxyl- containing terminal groups, their preparation and their use in imparting water-, oil- and soil-repellency and a soft hand to fibrous substrates such as leather...
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WO/1994/010345A1 |
Collagen is treated with a water-soluble compound which, in the free acid form, is of formula (1) wherein: L is an organic linking group; W is a covalent bond, -O-, -S-, -SO-, SO2-, -SO2NR1-, -NR1-, -NR1CO(CH2)p-, -NR1CONR1-, -NR1CH2CONR...
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WO/1994/010346A1 |
The invention pertains to a process for stuffing/softening leathers and fur skins by treating them with an aqueous dispersion of a copolymer, which can be obtained by polymerization of: a) maleic anhydride, b) C12 - C30 alpha-olefins, es...
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WO/1994/008054A1 |
Process for the treatment of tanned or non-tanned products comprising skins, leathers or other collagen-containing sheet materials, at different stages in their transformation. According to the process, the products are placed in contact...
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WO/1994/006942A1 |
The method comprises soaking and subsequent dehairing by controlled addition of alkaline proteolytic enzymes and a small amount of Na2S. The hair is removed completely and without environmental harm.
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WO/1994/006852A1 |
Spray-stable and castable aqueous foams (S) produced by the mechanical foaming of suitable aqueous preparations (W), in which the aqueous phase contains (A) a curable polymer system consisting of (U) an ionomeric polyurethane or a mixtur...
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WO/1994/006941A1 |
In a process for stretching leather, a piece of leather to be stretched is continuously gripped and clamped over its width during its transport through a processing section by individual opposite holding members moved in the transport di...
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WO/1994/004580A1 |
Alkoxy group-containing copolymers made of (a) 1 to 99 % by weight water-soluble, ethylenically unsaturated, acid groups-containing monomers, (b) 1 to 50 % by weight monomers with a polyalkoxy sequence and (c) to 60 % by weight water-sol...
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WO/1994/003592A1 |
The invention relates to the use of a water-soluble inorganic salt as stabilizing additive in aqueous solutions of lipases derived from a member of the genus Pseudomonas. More specifically, the invention provides a stabilized aqueous sol...
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WO/1994/002651A1 |
Proposed is the use of particular Guerbet alcohols in the oiling of leather in order to prevent the formation of fatty spew.
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WO/1994/002649A2 |
Proposed is the use of particular non-ionic organic dialkyl compounds in the stuffing of leather to prevent the formation of fatty spew.
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WO/1994/002650A1 |
The invention relates to the use of water-soluble or dispersible graft polymers of vegetable and animal oils, obtainable by the radically initiated polymerisation A) of a monomer or monomer mixture of (a) 20 to 100 wt % monoethylenically...
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WO/1994/001588A1 |
The invention relates to a method for regenerating and preserving skins or leathers, specially bindings, and which consists in applying to the skin, during a first step, a nutritive cream comprised of saponified greasse, excipient, disti...
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WO/1994/001476A1 |
Graft polymers containing water-soluble, acid groups are disclosed with at least partial biodegrability based on sugars and monoethylenically unsaturated caraboxylic acids, sulphonic acids and/or phosphonic acids or the salts of said aci...
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WO/1994/001586A1 |
Water-dispersible and/or water-emulsifiable urethane oligomers haing a fatty character (UR fatty oligomers) contain hydrocarbon fatty residues, the oligomer molecule having an at least mostly non-cross-linked base structure, together wit...
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WO/1994/001587A1 |
Water-dispersible and/or water-emulsifiable co-oligomers contain (a) fatty crotonates; (b) radically copolymerisable, hydrophilic, ethylenically unsaturated acids and/or their anhydrides, and possibly (c) minor amounts of other copolymer...
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WO/1993/024619A1 |
The present invention relates to novel microorganisms and to novel enzymes obtainable therefrom. More specifically, the invention relates to a new species of the genus Hyphozyma, and to novel lipases obtainable therefrom. The invention a...
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WO/1993/022464A1 |
A process is disclosed for waterproofing materials having a fibrous structure, such as leather, Persians or leather replacement materials by using waterproofing agents containing sulphosuccinic acid esters. Also disclosed are waterproofi...
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WO/1993/020243A1 |
Leather products that are well lubricated, impermeable and water-repellent are produced by impregnating tanned hides or skins under alkaline conditions with an aqueous emulsion of a mixture of alkyl or alkenyl carboxylic acids or anhydri...
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WO/1993/019208A2 |
The invention concerns the making of a dryer for the continuous drying and conditioning treatment of hides or fabrics, which includes: a loading unit (3, 203) composed of an entry belt (31, 231) on which the goods (10, 210) to be treated...
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WO/1993/019209A1 |
A method of treating aldehyde-tanned biological tissue minimizes in vivo calcification and reduces cytotoxicity without impairing the mechanical strength of the tanned tissue. The method includes the step of treating the aldehyde-tanned ...
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WO/1993/019210A1 |
A process is disclosed for stuffing, fulling and waterproofing leathers and pelts by using en-adducts of maleic acid anhydride to either unsaturated fatty acids containing 12-24 C atoms, their C¿1?-C¿20? alkyl ester or C¿2?-C¿20? alk...
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WO/1993/018188A1 |
Degreasing agents for the treatment of skins, hides, leathers and the like, based on non-ionic emulsifiers of the fatty alcohol alkoxylate type containing a mixture of (a) C¿12-18? fatty alcohol ethoxylates with an average of over 6 EO ...
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WO/1993/017970A1 |
Chromium containing protein materials are treated by processes which include the steps of: combining the material to be treated with sufficient water to effect the solubilization of the gelable protein recovered therefrom, and an alkali ...
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WO/1993/017130A1 |
Use of homo-or copolymerisates based on monoethylenically unsaturated dicarboxylic acid anhydrides which can be obtained through the radically initiated polymerisation of a) 30 - 100 mol.% of one or more monoethylenically unsaturated dic...
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WO/1993/014227A1 |
The use of water-soluble graft polymers of monosaccharides, oligosaccharides, polysaccharides and their derivatives obtainable by the radically initiated polymerisation: A) of a monomer or monomer mixture of: (a) 20 to 100 wt % acrylic a...
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WO/1993/014170A1 |
The invention relates to a method for the removal of metals from starting materials comprising proteinaceous substances by labilizing and solubilizing the metal with a treatment with chemical agent which includes leaching out, extraction...
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