| Patents for C14C 3 - Tanning; Compositions for tanning (2,056) |
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| 09/18/2013 | EP2638179A1 Non metal tanning |
| 09/18/2013 | CN102363820B Reutilization method of chromium-containing leather production sludge |
| 09/18/2013 | CN101835909B Method for producing leather |
| 09/18/2013 | CN101831512B Retaining agent with compound function and preparation method thereof |
| 09/11/2013 | CN203187697U Novel tan-sheep skin tightening equipment |
| 09/11/2013 | CN103290151A Method for preparing leather by using chromium-free retanning agent |
| 09/11/2013 | CN103290150A Production technology of cow rug |
| 09/11/2013 | CN103290149A Process for making goat upper leather |
| 09/11/2013 | CN103290148A Process for making goat denim line simulated upper leather |
| 09/11/2013 | CN103289038A Star-like oxazolidine latent curing agent and preparation method as well as use thereof |
| 09/11/2013 | CN102277457B Collagen-lossless circular dechroming method of chrome-containing leather waste in leather working by ethylenediaminetetraacetic acid under photocatalysis |
| 09/05/2013 | US20130227799 Non Metal Tanning |
| 09/05/2013 | US20130227798 Non Metal Tanning |
| 09/04/2013 | EP2633089A1 Non metal tanning |
| 09/04/2013 | EP2633088A1 Non metal tanning |
| 09/04/2013 | EP2633087A1 Non-metal tanning process |
| 09/04/2013 | EP2633086A1 Non-metal tanning process |
| 09/04/2013 | CN203174119U Device for intelligently tanning tan-sheep skins |
| 09/04/2013 | CN103276120A Solid phase tanning method for nature hide powder |
| 09/04/2013 | CN103276119A Amphiprotic leather tanning agent and preparation method thereof |
| 09/04/2013 | CN103276118A Amphiprotic acrylic resin leather tanning agent |
| 09/04/2013 | CN103276117A Method for processing sheepskin into fur or leather in multiple steps by using biological enzyme |
| 09/04/2013 | CN102493230B Under-fur and skin homochromatic dyeing process |
| 09/04/2013 | CN102127605B Leather tanning preparation and application method thereof |
| 09/04/2013 | CN101705314B Plant biomass-metal in-situ leather combining-tanning method |
| 08/29/2013 | US20130219634 Non Metal Tanning |
| 08/28/2013 | CN103266187A Shorn sheepskin tanning method |
| 08/28/2013 | CN103266186A Chrome-free tanning method for sheep shorn velvet |
| 08/28/2013 | CN102115797B Wood rotary drum structure |
| 08/21/2013 | CN103255243A Preparation method of soft acrylic resin leather retanning agent |
| 08/21/2013 | CN103255242A Preparation method of sulfone bridge type synthetic tanning agent |
| 08/21/2013 | CN102080134B Manufacturing process of semi-vegetable tanned wrinkled leather of cattlehide |
| 08/21/2013 | CN101993960B Leatherworking retanning method using chromium leather scraps |
| 08/15/2013 | US20130205516 Non Metal Tanning |
| 08/14/2013 | CN203128592U Pressure rotary drum applied to tanning process |
| 08/14/2013 | CN103243587A Technique for dyeing Tan sheep skin |
| 08/14/2013 | CN103243586A Method for dyeing Tan sheep skin |
| 08/14/2013 | CN103243186A Clean production technology of Tibet lamb skin |
| 08/14/2013 | CN103243185A Tibet lamb skin tanning technology |
| 08/14/2013 | CN103243183A Process for quickly producing domestic goat skins |
| 08/14/2013 | CN103243182A Tanning method free of lime, sulfide, chloride ion and heavy metal chromium pollution |
| 08/08/2013 | WO2013114414A1 Use of aluminosilicates in combination with neutralizing agents and tanning materials to obtain chrome-free leathers in tanning and retanning treatments |
| 08/08/2013 | US20130198974 Non-Metal Tanning Process |
| 08/07/2013 | CN103237903A Process for producing leather and aqueous formulations suited therefor |
| 08/07/2013 | CN103232604A An epoxy resin-modified hydrolyzed collagen, a retanning filler prepared from the epoxy resin-modified hydrolyzed collagen, and method for preparing both |
| 08/07/2013 | CN101787401B Preparation method of half aldehyde type high molecular leather retanning agent |
| 07/31/2013 | CN103225004A Xilu goat fur treatment process |
| 07/25/2013 | WO2013107293A1 Method for treating leather by using leather production wastewater and method for producing leather |
| 07/25/2013 | WO2013107208A1 Diethoxyl diallyl ammonium chloride derivatives, preparation method and use thereof in leather retanning and fat-liquoring agent |
| 07/24/2013 | CN103215391A Non-chromium leather tanning method |
| 07/24/2013 | CN102517409B Leather retanning method |
| 07/24/2013 | CN102517407B Processing method of leather semi-finished product |
| 07/24/2013 | CN102304592B Production process of suede leather |
| 07/24/2013 | CN101886093B Preparation method of phenol leather synthetic tanning agent through HRP (Horse Radish Peroxidase) catalytic synthesis |
| 07/17/2013 | CN103210096A Non metal tanning |
| 07/17/2013 | CN102051419B Dyeing and retanning tanning process |
| 07/17/2013 | CN101965411B Leather tanning process based on the recycling of poly hydroxyl alkyl phosphine and its derivatives |
| 07/10/2013 | CN103201396A Non-metal tanning |
| 07/10/2013 | CN103194549A Method for preparing chromium-aluminum tanning agent by utilizing chromium-containing aluminum mud and optional chromic chromate waste residues |
| 07/10/2013 | CN103194548A Zirconium-aluminum-titanium tannage waterproof clothing leather and making method thereof |
| 07/10/2013 | CN102212625B Amphoteric vinyl copolymer retanning agent and preparation method thereof |
| 07/10/2013 | CN101868555B Agent and method for tanning skins and pelts |
| 07/10/2013 | CN101489568B Condensation products, method for their production and use thereof in medicaments, as disinfectants or as a tannin |
| 07/09/2013 | US8481169 Leather |
| 07/03/2013 | CN103189527A Non metal tanning |
| 07/03/2013 | CN101993959B Glutaraldehyde-based leather synchronous tanning-dyeing material and novel active material |
| 06/27/2013 | WO2013093098A1 Leather manufacturing process using a soluble oxidized starch-derived polysaccharide and compositions containing it. |
| 06/26/2013 | EP2607500A1 Leather manufacturing process using a soluble oxidized starch-derived polysaccharide and compositions containing it |
| 06/19/2013 | CN102168153B Processing method of seawater-proof vamp leather |
| 06/12/2013 | EP2601317A1 Compositions comprising at least one compound containing a carbamoyl sulfonate group and use of the same as tanning agents |
| 06/12/2013 | CN103146850A Salt-free pickling-free amphoteric polymer chrome-free tanning agent |
| 06/12/2013 | CN102312023B Secondary recycling method of pigskin chrome-free combination tannage waste liquid |
| 06/12/2013 | CN101649362B Leather retanning filling agent in branched structure and preparation method thereof |
| 06/06/2013 | WO2013078777A1 Method for preparing nanometer composite highly-absorptive chrome tanning additive by combining polycarboxylic copolymer and montmorillonite |
| 06/05/2013 | CN103131804A Amphiprotic amphiphilic leather retanning fatting agent and preparation method thereof |
| 06/05/2013 | CN103131803A Tanning agent of non-chromium non-aldehyde multi-metal ecological leather and tanning method |
| 06/05/2013 | CN102303940B Method for treating sludge containing trivalent chromium |
| 05/29/2013 | CN101982547B Light-proof and sweat-proof leathers for steering wheels |
| 05/23/2013 | WO2013072063A1 Method for tanning or retanning rawhide, rawhide scraps, or an untanned article containing collagen |
| 05/22/2013 | CN103114157A Processing method of furs of fur clothing |
| 05/15/2013 | CN103103296A Method for improving tear strength of leather |
| 05/15/2013 | CN102493229B Printing and color developing method of fur |
| 05/15/2013 | CN101974655B Method for tanning non-pickling high-pH chrome leather by using chrome formate |
| 05/08/2013 | CN103088168A Process for circularly tanning cowhide sofa leather by using waste liquor for pickling without bath salt |
| 05/08/2013 | CN102168154B Method for preparing polynuclear low-chromium leather tanning agent |
| 05/01/2013 | CN103080341A Compositions comprising at least one compound containing a carbamoyl sulfonate group and use of the same as tanning agents |
| 05/01/2013 | CN103074455A Method for preparing multifunctional polymer-based nanometer ZnO composite tanning agent |
| 05/01/2013 | CN103073681A Method for preparing soft-type amphoteric vinyl polymer retanning fixing agent |
| 04/24/2013 | CN103060490A Tanning method for tanning sheepskin clothing leather by hyperbranched polymer-aluminum salt tanning agent |
| 04/24/2013 | CN103060488A Environment-friendly type crust leather production method |
| 04/24/2013 | CN103060484A Salt-free tanning method |
| 04/24/2013 | CN103060483A Double waterproof chromium-free tanned sheep fur and its making method |
| 04/24/2013 | CN102392083B Method for manufacturing high temperature-resistant wool sheepskin for shoes and boots |
| 04/24/2013 | CN102002541B Integrated process of tanning leather from quebracho extracts |
| 04/24/2013 | CN101796088B Method for the production of leather, copolymers that are suitable therefor, and further uses thereof |
| 04/17/2013 | EP2580356A1 Process for producing leather |
| 04/17/2013 | CN103045776A Method for producing fur clothes |
| 04/17/2013 | CN103045772A Processing technology for manufacturing leather by waste leather |
| 04/17/2013 | CN103045771A Preparation method of dual-purpose Spanish clothes wool leather free from dry cleaning |
| 04/17/2013 | CN103045769A Making method of goose down fur coat |