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WO/2004/070063A1 |
The invention relates to a method for producing leather. Said method is characterised in that pelts, pickled pelts or semi-finished products are treated with at least one polymer obtained as follows: copolymerisation of at least one ethy...
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WO/2004/067781A1 |
The invention relates to adducts that can be obtained by reacting carbonyl compounds of general formula (I) in which the variables are defined as follows: R1 and R2 are selected among hydrogen, C1-C12 alkyl, C3-C12 cycloalkyl, substitute...
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WO/2004/067782A1 |
The invention relates to a method for producing aqueous formulations, which is characterized in that at least one cyclic compound of general formula I is heated in the presence of water and an acid catalyst, and H-X-R3 is at least partly...
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WO/2004/065638A2 |
A heat and pressure consolidated laminate (10), and a method for manufacturing the same, is provided that includes superimposed relationship a core layer (12) containing a plurality of cellulosic sheets impregnated with a thermosetting r...
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WO/2004/065637A2 |
A heat and pressure consolidated laminate (10), and method for producing the same, is provided that includes in superimposed relationship a decorative layer (12) consisting essentially of a leather material, an underlay layer (16), a sub...
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WO/2004/065533A1 |
The present applicant has already developed a method of obtaining a substitute of lanolin and derivatives (lanolin alcohol, etc.) which can absorb up to at least twice the weight thereof in water or aqueous solution or aqueous suspension...
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WO/2004/065639A2 |
A heat and pressure consolidated flexible laminate, and a method for producing the same, is provided that includes in superimposed relationship, a flexible, resin coated backing layer consisting of one or more sheets, a decorative layer ...
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WO/2004/063396A1 |
The invention relates to compositions which are used for removing greases from substrates selected among skins, furs, pelts, and other intermediate products in leather and fur production. Said compositions contain a) a fat phase, b) at l...
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WO/2004/061136A1 |
An improved device for leather processing comprising a vessel containing perforated dummy doors and compartments with pegs as well as friction disk fixed along the exterior periphery of the vessel. The leathers to be wet processed are su...
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WO/2004/059014A1 |
A coating composition for leather composed of a fluorine-containing resin and a silicone oil or one composed of a curing fluorine-containing resin, a curing agent and a silicone oil enables a leather to maintain its specific soft texture...
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WO/2004/057036A1 |
A novel synthetic aluminium tanning agent as an alternative for chromium based tanning salts without using formaldehyde was prepared by using aromatic polymeric matrix and aluminium (III) salts as raw materials with suitable masking agen...
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WO/2004/055220A2 |
The invention concerns a method for decorating tanned leather (2), comprising a tattooing step which consists causing a pigment to penetrate the thickness of the leather using a needle (5) by perforation, producing thereby a pigmented de...
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WO/2004/053170A1 |
A process for the tanning of unpickled pelts without increasing the basicity of the liquor with basic chromium salts, optionally in the presence of fungicides and/or monoalkyl ethers of a diol, with pretreatment of the pelts in the liquo...
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WO/2004/048616A1 |
The invention relates to a method for producing a leather semi-finished product from the skin of an animal by pretannage using a chromium-free tanning agent and a clay mineral which, after being stirred for 30 minutes in water at 50 °C ...
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WO/2004/046389A2 |
A process for micro-perforating hides using a laser, characterized by: positioning the hide below a plurality of laser sources disposed substantially aligned along a straight line perpendicular to the hide advancement axis, each laser so...
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WO/2004/041293A1 |
Generally, compositions that provide, either individually or in combination, aqueous activated components conveyed in a non-aqueous carrier system, perceivable sensorial indicia of discrete event occurrence, or perceivable sensorial rein...
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WO/2004/040021A1 |
The present invention relates to an eco-friendly beam house process for de-hairing of leather using commercially available enzymes that obviates the use of lime and other alkalis. The present invention also provides an alternate process ...
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WO/2004/038046A1 |
The invention relates to a method for removing horn substances from animal skin. Said method is characterised in that animal skins are treated in an aqueous bath containing between 0.05 and 5 wt. % - in relation to the weight of the salt...
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WO/2004/037589A2 |
The invention relates to a method for producing leather, comprising at least two of the following method steps A) to D): A) using one or more polyelectrolytes during the production of semifinished or intermediate products, involving the ...
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WO/2004/037867A1 |
The invention relates to aqueous polymer dispersions, which contain alkyldiketenes and which can be obtained by the miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, to m...
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WO/2004/035836A2 |
A leather finishing process in which, in pertinent part, a warm water milling step is added after the base coat is applied to 'crust' leather and cured. The warm water contains at least one dye fixation agent including but not limited to...
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WO/2004/027096A1 |
The invention relates to a stuffing agent comprising A) a mixture of modified native oils containing a1) at least one oxidized sulphitized native oil and a2) at least one oxidized sulphatized native oil, B) an emulsifier mixture containi...
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WO/2004/022790A1 |
The invention relates to a formulation for use in chrome or chrome-free tannage. Said formulation comprises a clay mineral, which after 30 minutes of intense stirring in water at 50 °C has an average particle diameter of less than 2 µm...
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WO/2004/015148A1 |
The present invention relates to a process of tanning where the step of contacting the hides with chromium salts is preceded by acidification with organic acids sufficient to reach a pH of from about 3.5 to 5 at the surface of the hide a...
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WO/2004/011683A1 |
It refers to improvements in drums used for the treatment of skins, leathers and like, which concern the shape and relative location of the shelves provided in such drums; said modification being that these shelves are located radially, ...
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WO/2004/010840A2 |
In a method for scanning and cutting sheet-type work material carried on a support surface, the work material is automatically scanned to determine a periphery thereof and to allow for the detection of any flaws within the periphery of t...
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WO/2004/011682A1 |
A leather having durable antimicrobial efficacy after at least 5 washing is disclosed. The leather is treated in-situ with an antimicrobial composition containing both a bactericide and a fungicide. The bactericide and the fungicide are ...
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WO/2004/009852A1 |
A method and apparatus for the treatment of green skins and soaked hides. The skin or hide is places on a mesh in the un-stretched and relaxed condition the mesh holding the skin or hide in position until sealed around its periphery by a...
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WO/2004/007774A1 |
The present invention relates to a novel process for total lime and sulfide free unhairing in skins/hides using animal and/or herbal (plant) enzymes said process comprising presoaking skin or hide in water, pasting enzyme solution on the...
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WO/2004/003237A1 |
A splitting machine (1; 100) for hides (7) is disclosed comprising a casing (2) which supports a sizing roller (6; 106) and a contact roller (9; 109) mutually parallel among which said hide to be split (7) is made to pass through, said c...
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WO/2004/003238A1 |
Organic polyamines having at least three amino groups in the molecule, or mixtures or reaction products (1) of such polyamines with (2) at least one alkylsilane having organic oxy radicals bonded to the silicon atom and a functional grou...
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WO/2004/000959A1 |
A composition comprising (A) 100 parts by weight of at least one organosiloxane copolymer; (B) 10 to 120 parts by weight of at least one polyorganosiloxane; and (C) 10 to 150 parts by weight of at least one metal alkoxide. Methods for pr...
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WO/2003/102247A1 |
A drum for the treatment of flexible sheet-like products such as hides, fabrics and the like, comprising a container (2) for the hides (P) to be treated, having a substantially cylindrical side wall (3) and a pair of substantially flat e...
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WO/2003/097880A1 |
Disclosed is a method for removing horn substance from skins, pelts, or furs of dead animals by treating said skins, pelts, or furs in an aqueous liquor comprising one or several compounds of general formula I or the corresponding alkali...
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WO/2003/095517A1 |
The invention relates to aqueous polyurethane preparations, containing a polyurethane consisting of at least one organic isocyanate having no lateral alkyl groups, at least one alcohol that is at least bivalent and has a numerical averag...
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WO/2003/095681A1 |
The invention relates to a tanning agent that is produced by reacting at least one aldehyde of general formula (I) with at least another identical or different aldehyde of formula (I), wherein the variables are defined as follows: Z is a...
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WO/2003/093513A1 |
A material such as hide, skin, leather or fur for use in manufacturing a leather product, characterized in that it comprises at least one effective component of a fragrant component, a deodorant component, a medical component, an antibac...
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WO/2003/087413A1 |
The present invention relates to a rotary defleshing cutter comprising a central cutter head (1) of a substantially circular or polygonal cross section having its periphery provided with substantially axially aligned mounting grooves (3)...
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WO/2003/080873A1 |
An enzyme mixture, suitable for removal of dung from animal skins as a preparative step in production of leather, is prepared by cultivating white rot fungi under conditions that induce formation of a significant amount of laccase. The m...
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WO/2003/078663A1 |
A method for the continuous gradual stretching and drying of industrial hides and similar products comprises at least one step (a) involving the initial partial drying of the completely wetted hides supplied following a treatment with li...
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WO/2003/078664A1 |
The invention relates to a method for producing semi-finished goods and intermediate stages in the production of leather using one or more organic polyelectrolytes. The inventive method comprises at least one of the following steps: (a) ...
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WO/2003/076915A1 |
The invention relates to an automated method for inspecting and correcting the surfaces of flat materials, for example, leather. The invention particularly relates to a method for classifying surfaces of flat materials involving the foll...
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WO/2003/076669A1 |
The invention relates to a method of altering the thermodynamic properties of leather. The inventive method consists in incorporating microcapsules with PCMs (paraffins, hydrated salts or others), organic and inorganic inert pigment fill...
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WO/2003/076670A1 |
The invention relates to laminar materials having a low-heat-absorption capacity and suitable optical and thermodynamic properties for thermal control purposes. The inventive materials can be used in the motor vehicle industry, for furni...
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WO/2003/076175A2 |
The invention relates to laminar materials comprising incorporated microspheres, said microspheres containing agents that can alter properties such as heat-absorption capacity, aroma-release capacity or resistance to micro-organisms for ...
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WO/2003/072833A1 |
The present invention provides an improved pickling and bating free process suitable for both hides and skins for making chrome tanned leathers by using a mixture of conventional chrome tanning salt and alkali metal salt is used at a pH ...
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WO/2003/072834A1 |
The invention relates to the technical field of collagen-based substrates, such as skins, leathers, flesh splits and composition leathers. More specifically, the invention relates to the use of acrylic graft polymers with one or more pro...
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WO/2003/070988A1 |
The invention relates to agents for stuffing especially Cr-free tanned leather and skins. Said agents contain A) at least one modified native oil, in addition to B) at least one stabiliser LnR, wherein L represents formula (I) and Ra = H...
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WO/2003/066909A1 |
A method of forming packs of skins coming in sequence from a previous processing characterized in that the first skin of the pack to be formed is submitted to a revolution on a vertical plane, in order to be placed over the subsequent on...
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WO/2003/066791A1 |
The present invention relates to a surface protection composition comprising a polymer having at least one amide monomer unit, where the amide monomers are free of amine linkages. The invention is also directed to a substrate coated with...
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