Oxidation leather resistance

All the tannins readily react with proteins, forming insoluble, stable compounds when they react with collagen, the main constituent of animal skin, they form leather, a material that is resistant to hydrolysis, oxidation, and biological attack and therefore stable to weathering and resistant to decomposition. Since tannins from different plant sources have different chemical compositions, each tannin used for tanning skin produces a leather having slightly different properties and color. Tannins that have... 

Other uses of iron oxide pigments are in porcelaine, rubber, paper, in floor and furniture stains, plastics, fabrics and in leather finishes. Iron oxides are especially suitable colourants for floor coverings as their resistance to alkali enables them to... 

This oil is very stable and lasts for a long time without oxidizing. It was originally promoted as a substitute for spermaceti, the oil derived from whales. Most of its uses are cosmetic, in soap, shampoo, sun-tan lotions, and skin cream. Mixed with other compounds, it is useful in lubricants, candles, polish for wood and leather, and as moisture-resistant coatings. 

Chem. Descrip. Oxidized polyethylene aq. emulsion based on A-C 392 CAS 68441-17-8 EINECS/ELINCS 200-815-3 Uses Lubricant, antiblocking agent, mar resist, aid, rub resist, aid for paints, coatings, varnishes, can and coil coatings, textiles, leather, building materials, inks, graphic arts lubricant, mar resist, aid, rub resist, aid, water resist, aid in floor finishes... 

Polysulfide High viscosity, characteristic odor, low cure exotherm Good flexibility and adhesion, excellent resistance to solvents and oxidation, poor physical properties Sealants, leather impregnation... 

Polyurethane adhesives are frequently applied in solution as thermoplastics made from reacting diols, such as polyesters or polyethers with hydroxyl end gronps, with di-isocyanates. These materials are rubbery, tough and, because of the urethane and other polar groups, have good adhesion to textiles and leathers. In addition they are more resistant to oxidation than diene-type rubbers. However, they are still unstable. They can be cross-linked and bound to the substrate by incorporating a small quantity of di-isocyanate either free or attached to the polyol. Strength is increased and resistance to solvents is ensured. 

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