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| Number | Title | Issue Date |
| 8038723 | Epilatory compositions An epilatory composition, substantially provided as flat strips, comprises a gel-like matrix material, for example a rosin-based or sugar-based material and, mixed with the matrix material, a particulate material, for example colloidal particles of fumed silica, and... | 10/18/2011 |
| 7404826 | Method for removing horn substance from skins, pelts or furs Horny substances are removed from hides, pelts or skins of dead animals by treating the hides, pelts or skins in aqueous liquor with one or more compounds of the formula I or their corresponding alkali metal or alkaline ear... | 07/29/2008 |
| 7250062 | Method for removing horn substances from animal skin The invention relates to a method for removing horn substances from animal skin. The method is characterized 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, of at least one compound of g... | 07/31/2007 |
| 7198647 | Process for lime and sulfide free unhairing of skins or hides using animal and/or plant enzymes The present invention relates to a process for lime- and sulfide-free unhairing of skins/hides using animal and/or herbal (plant) enzymes. The process comprises presoaking the skins or hides in water for 2–6 hours, pasting an enzyme solution of animal or plant ori... | 04/03/2007 |
| 7186546 | Process for the preparation of alkaline protease The present invention relates to a process for the preparation of alkaline protease using a fungal culture of the order entomophthorales and to the use of the said protease in the pretanning processes of leather manufacture. ... | 03/06/2007 |
| 7134957 | Method for reducing microbial levels on the hide of an animal Disclosed is a novel method for reducing microbial levels on a hide of an animal. In one embodiment, the method comprises stunning the animal having a hide with a quantity of microorganisms on its hair, contacting the hide of the animal with an alkaline solution hav... | 11/14/2006 |
| 7022005 | Method for reducing microbial levels on the hide of an animal Disclosed is a novel method and system for dehairing an animal, providing a system for recycling and safely disposing of chemical and biological wastes produced during such dehairing method. Included in such method are processes for handling sodium production in was... | 04/04/2006 |
| 7013838 | Bleached expanded pigskin and products Pigskin is processed to provide a bleached, expanded skin used in dog treat or chew products. The raw pigskin is dehaired and then daubed with an alkali mixture of an alkali liquid, alkali enzymes and lime, the mixture having a pH of greater than or equal to 12. The... | 03/21/2006 |
| 6916348 | Dyed leather and method for dyeing tanned leather Tanned leather is (a) pretreated in an aqueous and alkaline medium either with ammonia, primary amines or a mixture of ammonia and primary amines and then with a polyfunctional organic compound containing at least one aldehyde group as a functional group, or (b) in ... | 07/12/2005 |
| 6689172 | Auxiliary for liming and loosening hairs of animal skins The invention concerns an auxiliary for liming and loosening hairs of animal skins, containing, in aqueous solution: 10 to 50 wt. % of a polysaccharide solution; 5 to 25 wt. % of a mercapto-carboxylic acid or one of its salts; and 1 to 10 wt. % of a merca... | 02/10/2004 |
| 6589293 | Depilatory paint thickener comprising an anylopectin starch The invention relates to the dehairing (depilating) of animal pelts, hides or skins, more specifically to depilatory paint and depilatory paint (depilation paint) thickener used in the depilation process in for example fellmongeries. The invention provide... | 07/08/2003 |
| 6482240 | Method of making a collagen membrane from porcine skin Collagen membranes are formed from porcine rinds (i.e., pig skins) for us in a variety of applications and, most preferably, for wrapping food products, such as hams and the like. First, after removing skins from the porcine, the skins are promptly frozen... | 11/19/2002 |
| 6387135 | Treatment of hides A process and apparatus for the treatment of hides and skins (3). The hide or skin is placed on a support (1, 2) and sealed to the support around the edges of the skin or hide. A treatment liquor is then supplied under pressure between the skin or hide an... | 05/14/2002 |
| 6130309 | Hydrophilic polyether polyurethanes containing carboxylic acid An improved polyurethane is prepared by reacting a diol, an organic diisocyanate and a carboxylic acid with a critical selection of the amount of water in the reaction mixture. The polyurethane has improved adhesion, hydrophilicty and strength. The polyme... | 10/10/2000 |
| 5939478 | Silicone polyether stabilized silicone latex solvent thickening The viscosity of a solvent is modified by thickening the solvent with a silicone latex. A silicone latex having a plurality of crosslinked polysiloxane particles is first prepared by mixing the siloxane polymer, a surfactant, and water; emulsifying the mi... | 08/17/1999 |
| 5897857 | Depilatory compositions comprising sulfhydryl compounds The subject invention involves topical depilatory composition at a pH 7 or below, comprising sulfhydryl compounds. The subject invention further relates methods for removing vellus hair from mammalian comprising topical application of a composition, at a ... | 04/27/1999 |
| 5868798 | Treatment of hides A process and apparatus for treating animal skins or hides (10) comprises stretching the hide to extend it and to open the structures and mounting the hide in a frame (15) by ties (12) extending between the hide edge attachments (11) and the frame. The hi... | 02/09/1999 |
| 5833718 | Sodium potassium sulfide composition and method for preparing same Describes an aqueous composition of sodium potassium sulfide and methods for preparing this inter-alkali metal sulfide. One method described is the addition of sodium hydrosulfide to potassium hydroxide in an aqueous reaction medium. The aqueous sodium po... | 11/10/1998 |
| 5817155 | Emulsion for hair treatment An emulsion for hair treatment is provided which is characterized by the following: the formulation (I) is composed of a W/O type emulsion, which allows the main agent to be stable, and contains preferably an oil soluble polymer compound for the emulsifie... | 10/06/1998 |
| 5770583 | Stable sulfide compositions uses and process for preparation thereof A stable sulfide containing composition is disclosed, including a process for preparation thereof and a method for using the composition to soften nails or to treat ingrown toenail.... | 06/23/1998 |
| 5468476 | Reduction of hair growth Mammalian hair growth is reduced by applying to the skin an inhibitor of nitric oxide synthetase.... | 11/21/1995 |
| 5417966 | Depilatory composition Paste A comprising a polysulfide polymer having a specific average molecular weight and specific amounts of liquid and filler components is mixed with Paste B comprising specific amounts of an oxide or peroxide of metal, a vulcanization accelerator, a fil... | 05/23/1995 |
| 5376042 | Process for the depilation of animal skins Current enzymatic processes for the depilation of hair require long processing times and are relatively expensive and chemical processes often create odor and/or effluent disposal problems. In the present invention, skins to be depilated are contacted wit... | 12/27/1994 |
| 5102422 | Methods for leather processing including liquid enzyme formulation Liquid enzyme preparations comprising at least one anhydrous organic liquid as a vehicle for one or more enzymes and methods for using such preparations e.g. in beamhouse operations in the commercial production of leather.... | 04/07/1992 |
| 5026542 | Depilatory composition A two part depilatory composition in which the first part comprises polyvinyl alcohol and the second part comprises a cross-linking agent which consists of borax and a polyhydroxy alcohol or of Congo red, the first or second or both parts additionally con... | 06/25/1991 |
| 4935231 | Use of thioredoxin, thioredoxin-derived, or thioredoxin-like dithiol peptides in hair care preparations The subject invention enables a more efficient management of hair by providing a novel preparation for waving, straightening, softening, or removing hair, employing as a key ingredient the compound thioredoxin or a thioredoxin-derived, or thioredoxin-like... | 06/19/1990 |
| 4729768 | Deliming of hides and use of cyclic esters of sulfurous acid as deliming agents In a particularly time-saving and economical process for deliming hides, a cyclic ester of sulfurous acid with an aliphatic 1,2-diol is used as the deliming agent.... | 03/08/1988 |
| 4670016 | Method and unit for treatment of skins with a view to separating the wool from them, and constituent means The invention is concerned with a method and a unit for treatment of skins with a view to separating the wool from them. This method consists in combining the following operations: (a) steeping the skins in a waterbath in vertical or sloping stacks (M); (... | 06/02/1987 |
| 4636222 | Enzymatic unhairing method An enzymatic method for the unhairing of hides and skins in the alkaline pH range by treating them in a liquor at a pH from 9 to 11 with a proteolytic enzyme having an optimum activity in the pH range from 2 to 7.5, and then unhairing.... | 01/13/1987 |
| 4631064 | Depilatory compositions Aqueous depilatory compositions containing biguanide and active thiol agent(s) which provide for faster hair removal are disclosed.... | 12/23/1986 |
| 4618344 | Depilatory compositions Aqueous depilatory compositions containing aminoguanidine and active thiol agent(s) which provide for faster hair removal are disclosed.... | 10/21/1986 |
| 4614520 | Leather processing A process is disclosed for preparing a suede leather product from animal hides. The hide is scalded before tanning and the finished product can be washed and ironed in a manner similar to a woolen garment. The hide is pretanned in formaldehyde, neutralize... | 09/30/1986 |
| 4581148 | Depilating composition and method A hair removing composition for use on carcasses, skins, hides, and pelts, containing preselected proportions of alkali, buffering agents, surface active agents, foaming agents, and stabilizers in combination with preselected thioglycolates.... | 04/08/1986 |
| 4548608 | Depilating composition and method A composition for removing hair from full hair whole carcasses, skins, hides and pelts comprising:... | 10/22/1985 |
| 4457759 | Environment-protecting method for the liming of raw hides The invention relates to an environment-protecting method for the liming of raw hides, wherein, after an optional mechanical degreasing step, the hides are subjected to presoaking, chemical degreasing, washing, alkaline swelling and collapsing, enzymatic ... | 07/03/1984 |
| 4443221 | Tanning method What are disclosed are improved methods for the preparation of leather wherein, in one or more steps for preparing leather from limed animal skins or hides, including beamhouse operations such as deliming, bating, pickling, and degreasing to prepare unhai... | 04/17/1984 |
| 4398911 | Tanning method What is disclosed are improved methods for the preparation of leather wherein, in one or more steps for preparing leather from animal skins or hides, including beamhouse operations such as soaking, dehairing, opening of the hide structure, deliming, batin... | 08/16/1983 |
| 4351639 | Process for liming pelts of animal hides and skins What is disclosed is a method for liming animal skins and hides which comprises treating said skins and hides with an aqueous alkaline liming liquor comprising a protective colloid, for example a protein such as gelatin, glue, or casein, or a water-solubl... | 09/28/1982 |
| 4322210 | Auxiliary, and process, for the soaking of hides An auxiliary for the soaking of hides and skins, which consists of a salt of the formula I where R is an organic radical of 1 to 8 carbon atoms, which may carry one or more functional groups, and M+ is one equivalent of a cation, mixtures there... | 03/30/1982 |
| 4310328 | Process for liming pelts of animal hides and skins What is disclosed is a method for liming animal skins and hides which comprises treating said skins and hides with an aqueous alkaline liming liquor comprising a protective colloid, for example a protein such as gelatin, glue, or casein, or a water-solubl... | 01/12/1982 |