EP 0029170 B2 19890823 - METHOD OF FINISHING LEATHER BY TREATMENT WITH RUBBER LATICES
Title (en)
METHOD OF FINISHING LEATHER BY TREATMENT WITH RUBBER LATICES
Publication
Application
Priority
DE 2946435 A 19791117
Abstract (en)
[origin: US4330597A] Advantages in the dressing of leather, especially of split leather, with a synthetic rubber latex are obtained if in the leather dressing, the rubber latex is reacted with from 0.5 to 50% by weight, based on solid rubber, of one or more oxides and/or hydroxides of one or more bivalent metals and the leather is treated with a non-polymerized rubber latex which is produced in a one-stage process up to a monomer conversion of from 70 to 95% by weight, by emulsion polymerization of: (A) from 1 to 10 parts by weight of one or more alpha , beta -monoethylenically unsaturated carboxylic acids; and (B) from 90 to 99 parts by weight of a mixture of (a) from 10 to 90 parts by weight of butadiene and (b) from 10 to 90 parts by weight of styrene and/or acrylonitrile, wherein the quantity of acrylonitrile in the mixture amounts to a maximum of 50 parts by weight.
IPC 1-7
IPC 8 full level
C08F 212/00 (2006.01); C08F 220/00 (2006.01); C08F 236/04 (2006.01); C14C 11/00 (2006.01)
CPC (source: EP US)
C14C 11/003 (2013.01 - EP US); Y10T 428/4935 (2015.04 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0029170 A1 19810527; EP 0029170 B1 19831207; EP 0029170 B2 19890823; BR 8007487 A 19810602; CA 1142817 A 19830315; DE 2946435 A1 19810521; DE 2946435 C2 19820218; DE 3065841 D1 19840112; ES 496847 A0 19830601; ES 8306507 A1 19830601; JP S5684800 A 19810710; JP S6131760 B2 19860722; US 4330597 A 19820518
DOCDB simple family (application)
EP 80106796 A 19801105; BR 8007487 A 19801117; CA 364730 A 19801114; DE 2946435 A 19791117; DE 3065841 T 19801105; ES 496847 A 19801114; JP 15970580 A 19801114; US 20606980 A 19801112