| Patents for C14C 3 - Tanning; Compositions for tanning (2,056) |
|---|
| 03/01/2006 | CN1740343A A method of clean high-absorption chrome tanning |
| 02/15/2006 | EP1625237A1 Use of copolymers as auxiliary agents for producing leather |
| 02/08/2006 | CN1730293A Artificial panda made of rex rabbit skin and making method thereof |
| 02/01/2006 | CN1727336A Compound composition prepared in alkylimidazolidone (meth)acrylates solution |
| 01/31/2006 | US6991659 Production of tanned and optionally retanned leather by treatment of an optionally (pre)tanned animal hide or pelt with an aldehyde-based treatment agent (A), wherein the optionally (pre)tanned animal or hide or pelt is treated |
| 01/11/2006 | CN1720338A Process for tanning and tanning agent |
| 01/11/2006 | CN1720337A Process for preparing a synthetic aluminium tanning agent |
| 01/11/2006 | CN1236072C Leather flame-retardant amino resin tanning agent and its preparation method |
| 01/04/2006 | EP1611258A1 Composition comprising chromium salts for tanning |
| 01/04/2006 | CN1715425A Filling type leather retanning agent and its preparing method |
| 12/29/2005 | WO2005123968A1 Tanning agent and process for tanning of animal skin |
| 12/28/2005 | CN1714158A Method for producing a leather semi-finished product |
| 12/22/2005 | DE10320061B4 Verfahren zur Herstellung eines Werkstoffs unter Verwendung von Lederabfällen und damit erzeugtes Formteil A process for the production of a material with use of leather waste generated and thus form part |
| 12/21/2005 | CN1710110A Method for preparing modified cyanurotriamide resin for leather retanning and filling |
| 12/14/2005 | CN1708590A A novel ecofriendly bio-process for leather processing |
| 12/08/2005 | US20050268671 Process of tanning hide |
| 12/07/2005 | CN1230558C Tanning material/complex tanning material products |
| 11/23/2005 | CN2741987Y Waste gas treatment and recovering device in leather tanning liquid production |
| 11/09/2005 | EP1592814A1 Method for producing leather |
| 11/02/2005 | EP1590492A1 Tanning agents and preservatives |
| 11/02/2005 | EP1590491A1 Adducts based on cyclic compounds and the use thereof as tanning agents and curing agents |
| 10/26/2005 | CN1687463A Leather tanning agent of modified aminoresin and preparation method thereof |
| 10/26/2005 | CN1687462A Synthetic method for preparing retanning agent of modified starch for leather |
| 10/26/2005 | CN1224719C Method for preparing oligomer of ethylene group in used for aluminium tanning |
| 10/26/2005 | CN1224718C Preparation technology of vinyl polymer/modified montmorillonoid nano composite tanoing agent |
| 10/20/2005 | US20050229325 Novel process for the preparation of aldehyde from a proteinous source for industrial applications |
| 10/20/2005 | US20050229324 Process and auxiliaries for the treatment of organically tanned leather |
| 10/19/2005 | CN1223684C Modified collagen fiber and its preparing process |
| 10/18/2005 | US6955826 Polymerizing (meth)acrylic acid using a thioglycolic acid catalyst; adding an aqueous solution of powdered acacia; sulfonation by sodium bisulfite; increased tannin weight and solubility for better leather penetration |
| 10/06/2005 | DE19615436B4 Verfahren zur Gewinnung von Gerbstoffen aus Polygonaceae als nachwachsende Rohstoffe Process for obtaining tannins from Polygonaceae as renewable resources |
| 10/05/2005 | CN1678760A Process of tanning hide |
| 09/29/2005 | US20050210596 Producing semifinished materials having tensile strength, colorability and body; reusable waste |
| 09/28/2005 | CN1675381A Formulation for use in chrome or chrome-free tannage |
| 09/28/2005 | CN1220781C Method for producing tanning agents containing sulphone |
| 09/21/2005 | EP1576196A1 Process for preparing a synthetic aluminium tanning agent |
| 09/15/2005 | DE102004009096A1 Lederhilfsmittel Lederhilfsmittel |
| 09/15/2005 | DE10042993B4 Verfahren zum enzymatischen Gerben von Häuten A method for enzymatic tanning of hides |
| 09/14/2005 | CN1219077C Chrome free or less chrome main tanning agent for leather and preparation process thereof |
| 09/07/2005 | CN1218050C Method for preparing lecithoid retanning agent with lipide being added |
| 09/07/2005 | CN1218049C Method for preparing amphiprotic tanning agents in aryl-sulfone type |
| 08/31/2005 | EP1568788A2 Aromatic sulfonic acids, their process of preparation, their aldehyde condensation products and their use in the field of leather, paper and textiles. |
| 08/31/2005 | EP1567679A1 Method for producing a leather semi-finished product |
| 08/31/2005 | EP1567678A1 Process for tanning and tanning agent |
| 08/31/2005 | CN1660796A Leather agent |
| 08/24/2005 | EP1565584A1 An ecofriendly bio-process for leather processing |
| 08/24/2005 | EP1297189B1 Use of hydrolysates of vegetable tanning agents for stabilising chrome-iii against oxidation in chrome-tanned leather |
| 08/04/2005 | WO2005071118A1 A process for making leather |
| 08/03/2005 | CN1650034A Tanning agent and curing agent based on dialdehydes |
| 08/03/2005 | CN1213151C Tanning method for fish skin and after finishing method for fish skin leather |
| 07/20/2005 | CN1643166A Use of polyelectrolytes in the production of leather |
| 07/06/2005 | CN1209467C Foaming-bath method for producing tanned leather |
| 06/30/2005 | US20050138738 pretanning wet treatment; controlling pH, temperature |
| 06/30/2005 | DE10355402A1 Producing aqueous copolymer dispersions, e.g. useful for treating leather, comprises copolymerizing an ethylenically unsaturated dicarboxylic acid anhydride and an alkene oligomer and adding water |
| 06/29/2005 | CN1208470C Processing method of making leather using frog skin |
| 06/29/2005 | CN1208415C Process for gelatines extraction and chromium salts recovery from tanned hides and skins shavings |
| 06/23/2005 | DE10354396A1 Production of di-, oligo- and polymers of dicarbonyl compounds as aqueous formulation or powder, used for tanning and as preservative, involves acid-catalyzed condensation of 2-substituted heterocyclic compound in water |
| 06/16/2005 | US20050125906 Tanning agent and curing agent based on dialdehydes |
| 06/09/2005 | US20050120489 Formulation and process for making formulation for preservation of animal and vegetable tissues |
| 06/01/2005 | CN1204268C Ultrasonic wave chromium removing process for tannery containing chrome leather scraps oxidation |
| 05/18/2005 | EP1530647A1 Formulation for use in chrome or chrome-free tannage |
| 05/18/2005 | CN1202267C Treatment of part processed leather |
| 05/06/2005 | WO2005040490A1 Method for the reactive colouring of leather |
| 04/28/2005 | WO2005038124A1 Process and compositions for pigment-dyeing of leather |
| 04/28/2005 | WO2005038058A1 Composition for the pretanning of pelts |
| 04/19/2005 | US6881356 Using phenolsulfonic acid, dihydroxydiphenylsulfonate as chemical intermediates; reacting with aldehyde, urea; neutralization |
| 04/14/2005 | WO2005033151A1 Method for the production of copolymers |
| 04/07/2005 | WO2005031062A1 Method for treating fibrous substrates |
| 04/07/2005 | WO2005031007A1 Method for the production of leather and semifinished products, and formulations that are suitable therefor |
| 04/07/2005 | WO2005030865A1 Aqueous dispersions of copolymers, production thereof and use of the same |
| 03/31/2005 | US20050069472 Complex of protein and chromate; reuse of wastes from tanning process |
| 03/30/2005 | EP1517999A1 Process and auxiliaries for the treatment of organically tanned leather |
| 03/30/2005 | CN1195072C Chrome tanning agent for blending and reducing animal and plant fiber and its prepn |
| 03/23/2005 | CN1597993A Treatment process for reducing content of hexavalence chromate in leather |
| 03/23/2005 | CN1194103C Plant polyphenol reduced chrome-aluminium tanning agent and its prepn |
| 03/17/2005 | US20050059125 Converting protenious material: fleshings, skin trimmings, keratin to protein hydrolyzate by hydrolysis, sterilization, traeating with sodium borohydrate to form alcohol containing slurry, oxidizing the slurry with an organo-oxidizer to form aldehyde; use as tanning agent in leather industry |
| 03/16/2005 | EP1514890A1 A process for the preparation of aldehyde from a proteinous source for tanning of leather |
| 03/16/2005 | EP1161566B1 Tanning leather |
| 03/16/2005 | CN1594598A Saltless hydrophilic powdered tanning agent and preparing method thereof |
| 03/16/2005 | CN1594597A Flame retardant and moldproof tanning agent with high absorption property and preparation method thereof |
| 03/09/2005 | EP1362128B1 Production of tanned leather and products suitable therefore |
| 03/03/2005 | WO2005019480A1 Method for the production of leather by using polymers |
| 03/02/2005 | CN1191375C Circrlar utilizing process for waste lixivium of tanning |
| 02/23/2005 | CN1584058A Preparing method for aldehyde acid tanning agent |
| 02/23/2005 | CN1190501C Plant polyphenol-protein composite leather filler and preparation process thereof |
| 02/17/2005 | WO2005014865A1 A process for the preparation of a synthetic tanning agent |
| 02/17/2005 | DE10320061A1 Verfahren zur Herstellung eines Werkstoffs unter Verwendung von Lederabfällen und damit erzeugtes Formteil A process for the production of a material with use of leather waste generated and thus form part |
| 02/16/2005 | EP1506319A1 Tanning agent and curing agent based on dialdehydes |
| 02/16/2005 | CN1189574C Process for preparing high astringency light color leather main tanning agent |
| 02/10/2005 | DE10333749A1 Preparation of leather, e.g. for producing clothing or furniture, by treating with new copolymer of unsaturated acid or anhydride, vinyl aromatic compound and alkoxylated unsaturated ether |
| 02/01/2005 | US6849095 Crosslinking the structural protein (collagen) in the hide using transglutaminases. |
| 01/25/2005 | US6846336 Leveling, dispersants, colorfastness as textile finishing |
| 01/12/2005 | CN1563429A Method for preparing lecithoid retanning agent with lipide being added |
| 01/12/2005 | CN1563428A Method for preparing oligomer of ethylene group in used for aluminium tanning |
| 01/12/2005 | CN1563427A Method for synthesizing retanning agent modified by starch in use for leather |
| 01/12/2005 | CN1563426A Method for preparing amphiprotic tanning agents in aryl-sulfone type |
| 01/12/2005 | CN1563425A Method for fabricating chroming agent by using leather mea containing chrome |
| 12/22/2004 | EP1488013A1 Use of polyelectrolytes in the production of leather |
| 12/22/2004 | CN1556225A Preparation technology of ving/polymer/modified montmorillonoid nano composite tanoing agent |
| 12/16/2004 | US20040250353 Using phenolsulfonic acid, dihydroxydiphenylsulfonate as chemical intermediates; reacting with aldehyde, urea; neutralization |
| 12/15/2004 | EP1485508A1 A process for making chrome tanned leathers |