Aqueous coating composition for meat, method for coating or crust leather tanned or crust leather tanned.

摘要

The present invention provides aqueous coating compositions of meat comprising one or more vinyl or acrylic acid copolymers functional and 0.003 to 1.0 equivalent, based on equivalents of carboxylic acid in the polymer, of one or more active compounds selected from a Aminoguanidine, semicarbazide, diidrazida, guanamina, hydrazine and a salt of the same.In addition, the invention provides methods for application of the composition coated leather crust or to the tanned leather, and the leather coated or coated leather crust meat produced in the same.The crust leather tanned leather produced by the invention, for example, finished leather or coated with meat, will emit low levels of aldeidos over time and particularly valuable in the purification of aldeidos from perforated leather for automotive use.