EP 0783387 A1 19970716 - GLANCE COAL PRODUCING AGENT FOR FOUNDRY SAND
Title (en)
GLANCE COAL PRODUCING AGENT FOR FOUNDRY SAND
Title (de)
GLANZKOHLENSTOFFBILDNER FÜR GIESSEREISANDE
Title (fr)
AGENT DE PRODUCTION DE CHARBON LUISANT POUR SABLES DE FONDERIE
Publication
Application
Priority
- DE 9601328 W 19960719
- DE 19529030 A 19950728
Abstract (en)
[origin: DE19529030A1] A glance coal producing agent consists substantially of a residue from bisphenol production set to a softening temperature of at least 70 DEG C by separating low-boiling components. It is preferably set to a softening temperature of at least 90 DEG C by a subsequent distillative and/or reactive treatment. This glance coal producing agent yields more than 40 % by weight glance coal, can be very easily crushed and stored in silos. It may be used alone or mixed with other glance coal producing agent. In a particularly appropriate manner, it is molten with polystyrene and crushed after cooling down.
IPC 1-7
IPC 8 full level
A62D 3/00 (2006.01); A62D 3/38 (2007.01); B22C 1/02 (2006.01); A62D 101/28 (2007.01); A62D 101/47 (2007.01)
CPC (source: EP)
A62D 3/38 (2013.01); B22C 1/02 (2013.01); A62D 2101/28 (2013.01); A62D 2101/47 (2013.01); A62D 2203/02 (2013.01)
Citation (search report)
See references of WO 9704899A1
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
DE 19529030 A1 19970130; AU 6610596 A 19970226; DE 19680623 D2 19980122; EP 0783387 A1 19970716; WO 9704899 A1 19970213
DOCDB simple family (application)
DE 19529030 A 19950728; AU 6610596 A 19960719; DE 19680623 T 19960719; DE 9601328 W 19960719; EP 96925639 A 19960719