Patents
Sitemap › C14 - Skins; Hides; Pelts; Leather › C14C - Treating skins, hides or leather with chemicals, enzymes or micro-organisms, e.g. tanning, impregnating or finishing; Apparatus therefor; Compositions for tanning › C14C 3 - Tanning; Compositions for tanning
Patents for C14C 3 - Tanning; Compositions for tanning (2,056)
11/1986
11/11/1986US4622156 Chromium compound and alumina hydrate
08/1986
08/27/1986CN85100819A New pollution-free tanning technology
07/1986
07/16/1986EP0187473A1 Process for tanning hides
06/1986
06/24/1986US4596581 Acrylic and methacrylic acid with dimethylaminopropyl methacrylamide and acrylonitrile and acrylamide
04/1986
04/23/1986EP0178557A1 Process for the production of greasing agents for leather and furs
04/22/1986CA1203353A1 Process for producing leather
04/09/1986EP0084045B1 Low-pressure fixation of valvular tissue intended for implantation
02/1986
02/26/1986CN85201554U Oxidation device for tanning
02/11/1986US4569830 Method and plant to recover chromium salts from tannery reflux water
01/1986
01/15/1986EP0167809A1 Process for the quick tanning of leather, and pretanning agent used therein
12/1985
12/27/1985EP0165622A1 Apparatus for use in fixation of animal heart valves
12/27/1985EP0165481A1 Method for the manufacture of leather and pelts
12/24/1985US4560384 Process for tanning hides
12/24/1985CA1198260A1 Extraction of protein and chromium from tannery wastes
12/04/1985EP0163057A1 Process for retanning mineral or combined tanned leather with polymeric tanning agents
11/1985
11/21/1985EP0161778A1 Tanning of leather
10/1985
10/16/1985EP0158077A1 Process for retanning mineral-tanned leather
09/1985
09/24/1985CA1193804A1 Leather tanning agent and process for making same
09/03/1985CA1192703A1 Process for retanning leather with acrylic-based oligomers
08/1985
08/20/1985EP0138808A4 Process for tanning fish skins.
08/14/1985EP0151290A1 Amphoteric condensation products and use thereof in retanning
07/1985
07/02/1985US4526581 Process for producing leather
05/1985
05/21/1985US4518745 Metal chelates of water soluble copolymers
05/02/1985EP0138808A1 Process for tanning fish skins
03/1985
03/12/1985US4504316 Aluminum salts of aromatic sulfonic acids formaldehyde condensates
03/12/1985US4504271 Leather tanning agent and process for making same
03/05/1985US4502859 Borax, alum and emulsifier in water and oil
02/1985
02/05/1985US4497634 Tanning material containing basic chromic sulfate and mercaptoacetic acid
12/1984
12/19/1984EP0128702A1 Process for tanning hides
11/1984
11/27/1984US4484925 Tanning method designed to make leathers mycostatic, antimycotic, and antifungal, and the resulting products
11/20/1984US4483829 Comminution, hydrolysis producing polypeptide and solid chromium hydroxide
11/13/1984CA1177602A1 Low-pressure fixation of valvular tissue intended for implantation
10/1984
10/24/1984EP0122501A1 Process for the production of basic chromium-aluminium sulfates
10/17/1984EP0121697A1 Method of tanning hides with a high basicity chrome tanning agent
09/1984
09/27/1984WO1984003718A1 Process for tanning fish skins
09/12/1984EP0118213A1 Process for tanning leather
07/1984
07/18/1984EP0113438A2 Water soluble polymers, their preparation and their use
07/04/1984EP0112520A2 Metal chelates of water-soluble copolymers, water soluble polymers, their preparation and their use
05/1984
05/22/1984CA1167608A1 Polymer products in the form of solutions or aqueous dispersions for treating pelts and leather
04/1984
04/17/1984US4443382 Aluminum hydroxide, cement, leather tanning
04/17/1984US4443221 Tanning method
04/10/1984US4441342 Tanning apparatus
04/03/1984CA1164607A2 Method for preparing titanium agent and use thereof in leather tanning process
03/1984
03/27/1984US4439201 Process for retanning leather with acrylic-based oligomers
03/27/1984CA1164156A1 Tanning process and tanning compositions
12/1983
12/28/1983EP0096811A1 Improved tanning material containing basic chromic sulfate and mercaptoacetic acid
11/1983
11/16/1983EP0094329A1 Tanning process for rendering leathers mycostatic, antimycosic and antifungicidal, and articles produced thereby
11/08/1983US4413997 Dicarbamoylsulfonate tanning agent
10/1983
10/26/1983EP0084045A4 Low-pressure fixation of valvular tissue intended for implantation.
09/1983
09/13/1983US4403993 Reacting melamine, urea, form-aldehyde, sodium bisulfite
08/1983
08/23/1983CA1152284A1 Method for preparing titanium agent and use thereof in leather tanning process
08/16/1983US4398911 Cellulose ethers as thickeners
08/10/1983EP0085107A1 Tanning agent for skins and method of obtaining it
08/02/1983US4396387 Method for preparing titanium tanning agent and use thereof in leather tanning process
07/1983
07/27/1983EP0084134A2 Retanning process
07/27/1983EP0084045A1 Low-pressure fixation of valvular tissue intended for implantation.
06/1983
06/28/1983US4390340 Condensation product of an aliphatic aldehyde with an aromatic amino methylene sulfonic acid
05/1983
05/31/1983US4386037 Sulphonic acids of tolyl ether sulphones
05/17/1983CA1146303A1 Chrome utilization in chrome tanning
05/17/1983CA1146302A1 Process for producing leather
04/1983
04/27/1983EP0077495A1 Polymeric tanning agent and method of retanning
04/12/1983US4379708 Process for tanning fish skins
02/1983
02/23/1983EP0072493A1 Tanning salt containing chromium (III), and method for its manufacture
02/08/1983US4372743 Low-pressure fixation of valvular tissue intended for implantation
01/1983
01/06/1983WO1983000049A1 Low-pressure fixation of valvular tissue intended for implantation
11/1982
11/25/1982WO1982004071A1 Tanning agent for skins and method of obtaining it
11/17/1982EP0064761A1 Pickling and tanning process and pickling composition
11/16/1982CA1135725A1 Leather tanning composition and method
10/1982
10/27/1982EP0063319A1 Method of making water-soluble or self-dispersing resinous tanning agents and their use
09/1982
09/29/1982EP0061420A1 Method of retanning leather with acrylic oligomers
09/14/1982CA1131409A1 Age resistant chrome tanning agents
09/07/1982US4348201 Chromium or aluminum salts; upgrading; pollution control; high speed
08/1982
08/24/1982CA1130055A1 Use of water-insoluble aluminosilicates as tanning agents for the dressing of fur skins
08/17/1982CA1129887A1 Stabilized tanning composition and method
07/1982
07/20/1982US4340571 Process for chrome recovery from industrial waste and the like, as from chrome-ladened tannery waste
06/1982
06/15/1982US4334876 Process for producing leather
06/08/1982US4333731 Lime, pickling, fat liquoring
05/1982
05/04/1982US4327997 Chrome utilization in chrome tanning
04/1982
04/20/1982US4325890 Phenol-formaldehyde condensates, their preparation and their use as dispersing agents, liquefaction agents and tanning agents
04/06/1982CA1121527A1 Process for chrome recovery from industrial waste and the like, including pollution control of the same
04/06/1982CA1121109A1 Use of water-insoluble alkali metal aluminosilicates and polycarboxylic acids in the tanning process for the production of leather
03/1982
03/03/1982EP0046644A2 Improved chrome utilization in chrome tanning
02/1982
02/09/1982US4314975 Method for preparing titanium tanning agent
02/09/1982US4314803 Chrome, pickling, hexamethylenetetramine
02/09/1982US4314802 Process for producing leather
02/09/1982US4314800 Method for treating pelts and leather
01/1982
01/26/1982US4312632 Method of tanning skins or hides
11/1981
11/03/1981US4298344 Age resistant chrome tanning agents
10/1981
10/21/1981EP0038106A1 Process for reclaiming chromium from roasted chromium ash containing hexavalent chromium
10/21/1981EP0038105A2 Process for improving the conversion of trivalent chromium in ash to hexavalent chromium
10/07/1981EP0037250A2 Synthetic tanning agents and process for their production
09/1981
09/29/1981CA1109875A1 Tanning agent, its preparation and its use for retanning
09/29/1981CA1109606A1 Method of absorption of hydro-carbons or organic solvents
09/01/1981CA1108338A1 Water-soluble cationic oligourethane resins and the use thereof for the treatment of pelts or leather
08/1981
08/25/1981US4285689 Leather tanning composition and method
08/04/1981CA1106108A1 Chrome-tanning
06/1981
06/23/1981CA1103408A1 Use of water-insoluble aluminosilicates in tanning process for the production of leather
06/10/1981EP0029906A1 Method of reducing the friction in the wet steps of leather manufacture
06/09/1981US4272242 Use of water-insoluble aluminosilicates in tanning process for the production of leather
06/02/1981US4270912 Stabilized tanning composition comprising a reaction product of (a) polyaldehyde (b) secondary amine and (c) an alcohol and method
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