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index by sub-area 5.2. The integrated production and exploitation of biological materials for non-food uses
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Copolymers of tannins and waste lignocellulosic materials with synthetic materials for non-toxic, environmentally friendly chromesubstitutes in leather tanning

Contract nr: QLK5-CT-1999-00913
Project type: RS (Research and Technological Development Project)
Starting date: 01-02-2000
Duration: 36 months
Total cost: 860,000 EUR
EC Contribution: 430,000 EUR
Scientific Officer: Ciaran MANGAN
Research topic: 5.2. The integrated production and exploitation of biological materials for non-food uses

Abstract:
Toxic chrome salts are used for the production of 70% of today's leather, namely the majority of soft leather. The project proposes to synthesise copolymers of non-toxic vegetable tannins and waste lignocellulosic materials, both derived from the forestry industry, with
1. acrylic acid,

2. aminoplastic resins, and
3. by reacting natural vegetable tannins with small amounts of non-toxic nitroalcohols, and to show that these compounds can substitute toxic chrome salts, completely or at least partially (in retannig operations), to produce acceptable soft leather.



Coordinator
Antonio PIZZI
Université Henri Poincaré - Nancy 1
Epinal
FRANCE
Tel.: +33 3 29811150
Fax: +33 3 29340976
E-mail: pizzi@enstib.u-nancy.fr


Partners
  Marco BESSÉ
SILVA s.r.l.
S. Michele Mondovi (CN)
ITALY
Tel.: +39 0174220215
Fax: +39 0174220385
E-mail: labosilva@silvagroup.com
  Robert REID
Holmes Halls Tanners Ltd
Hull
UNITED KINGDOM
Tel.: +44 1482 449449
Fax: +44 1482 445363
E-mail: leather@holmes-halls.co.uk