EP 0886768 A4 19990915 - METHOD AND INDICATOR FOR INDICATING THAWING
Title (en)
METHOD AND INDICATOR FOR INDICATING THAWING
Title (de)
VERFAHREN UND INDIKATIOR ZUR AUFTAUENSANGABE
Title (fr)
PROCEDE ET INDICATEUR DE CYCLE GEL-DEGEL
Publication
Application
Priority
- IL 9700229 W 19970708
- IL 11884096 A 19960711
Abstract (en)
[origin: WO9802722A1] A method of indicating whether a food article has undergone a freeze-thaw sequence by applying to the food article an indicator including a first material (3) enclosed within microcapsule walls (4), and a second material (5) normally separated from the first material by the microcapsule walls. The two materials include substances which produce a color change when brought into contact with each other, but which are normally separated from each other by the microcapsule walls. The first material further includes a liquid, preferably water, which when frozen expands sufficiently to rupture the microcapsule walls (Fig. 26), such that when the first material is thawed, it comes into contact with the second material producing a color change indicating that the food article has undergone a freeze-thaw sequence.
IPC 1-7
IPC 8 full level
G01K 11/06 (2006.01); F25D 29/00 (2006.01)
CPC (source: EP)
G01K 11/06 (2013.01); F25D 29/008 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9802722A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9802722 A1 19980122; AU 3272197 A 19980209; AU 757162 B2 20030206; BR 9711806 A 19990824; CA 2260184 A1 19980122; EP 0886768 A1 19981230; EP 0886768 A4 19990915; IL 118840 A0 19961031; JP 2003519461 A 20030617
DOCDB simple family (application)
IL 9700229 W 19970708; AU 3272197 A 19970708; BR 9711806 A 19970708; CA 2260184 A 19970708; EP 97928418 A 19970708; IL 11884096 A 19960711; JP 50580998 A 19970708