| 摘要 |
1411175 Coated leather BADISCHE ANILIN- & SODA-FABRIK AG 16 Feb 1973 [17 Feb 1972] 7641/73 Heading B2E A method of coating leather comprises applying a powdered thermoplastics material to the surface of the leather and heating the coated side of the leather to 120 to 200‹C with a plating press. The thermoplastics material is preferably plasticised and may be polyethylene, p.v.c., polymeric (meth)acrylates, polyurethanes or polyamides. Plasticisers are normally included and many conventional plasticisers are listed. Other additives which may be added to the thermoplastics material are stabilisers including zinc and cadmium complexes, and Pb, Sn, Ba/Cd and Ca/Zn complexes and soaps The heated plating press may be capable of exerting up to 100 atmospheres. When p.v.c. is used as the coating, a primer layer of an aqueous dispersion containing p.v.c. is first applied. |
