EP 0164076 B1 19891213 - PROCESS FOR PRODUCING ARTIFICIAL LEATHER SIMILAR TO REAL LEATHER BY CHEMICALLY PROCESSING SYNTHETIC SHEET MATERIALS
Title (en)
PROCESS FOR PRODUCING ARTIFICIAL LEATHER SIMILAR TO REAL LEATHER BY CHEMICALLY PROCESSING SYNTHETIC SHEET MATERIALS
Publication
Application
Priority
IT 6758584 A 19840606
Abstract (en)
[origin: EP0164076A2] Process particularly suitable for sheet material of the type comprising a porous polyurethane resin matrix, the latter containing polyester or polyethylene fibres, and a pressed polyurethane resin cover film patterned to imitate real leather; the said process consisting in treating the said material, inside rotary tanning drums, with a trivalent metal salt solution which is brought up to precipitation pH level in such a manner as to fill the pores in the said polyurethane matrix on the said sheet material with a corresponding hydroxide, after which, the material is treated with a dialdehyde, fireproofing, colouring and softening substances.
IPC 1-7
IPC 8 full level
D06N 7/00 (2006.01); C08J 9/34 (2006.01); D06N 3/14 (2006.01); D06N 3/18 (2006.01); D06N 7/04 (2006.01)
CPC (source: EP)
D06N 3/14 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
EP 0164076 A2 19851211; EP 0164076 A3 19861203; EP 0164076 B1 19891213; AT E48666 T1 19891215; DE 3574749 D1 19900118; IT 1178956 B 19870916; IT 8467585 A0 19840606; IT 8467585 A1 19851206; JP H0555633 B2 19930817; JP S6141378 A 19860227
DOCDB simple family (application)
EP 85106681 A 19850530; AT 85106681 T 19850530; DE 3574749 T 19850530; IT 6758584 A 19840606; JP 12238585 A 19850606