EP 1969295 A4 20101222 - SELF-HEATING CHEMICAL SYSTEM FOR SUSTAINED MODULATION OF TEMPERATURE
Title (en)
SELF-HEATING CHEMICAL SYSTEM FOR SUSTAINED MODULATION OF TEMPERATURE
Title (de)
SELBSTERWÄRMENDES CHEMISCHES SYSTEM ZUR VERZÖGERTEN TEMPERATURMODULATION
Title (fr)
SYSTÈME CHIMIQUE AUTOCHAUFFANT DESTINÉ À UNE MODULATION CONTINUE DE LA TEMPÉRATURE
Publication
Application
Priority
- US 2006047621 W 20061213
- US 59760505 P 20051213
Abstract (en)
[origin: WO2007087039A2] A self-heating chemical system using one or more primary components for exothermic reactions (such as calcium oxide), one or more porous components that can serve as a heat sink and conductor of heat as well as under going chemical transformations that release heat (zeolite), a weak acid (citric acid) for sustained modulation of temperature and pH. Exothermic reactions, mixing of some chemicals, sorption of certain chemicals, phase changes in chemicals, and dissolution of some chemicals in solvents release heat during these operations. The rate of heat generation coupled with mass and energy transfer rates to or from system(s) allows modulation of the temperature of systems. The modulation can be further enhanced by controlled release and availability of some of the components. This method provides with a class of self-heating product applications and focuses on the modulation of temperature through sequestering of reactions with different rates, heat release through dissolution, heat release through mixing, heat release through sorption, heat release through phase change as well as controlling mass and heat transfer rates.
IPC 8 full level
C09K 5/18 (2006.01); A47K 10/06 (2006.01)
CPC (source: EP US)
C09K 5/18 (2013.01 - EP US); Y02E 50/10 (2013.01 - EP US); Y02E 50/30 (2013.01 - EP US)
Citation (search report)
- [A] WO 2005108524 A2 20051117 - CANDLE CORP OF AMERICA [US], et al
- [A] US 3475239 A 19691028 - FEARON ROBERT EARL, et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007087039 A2 20070802; WO 2007087039 A3 20071227; CA 2633250 A1 20070802; EP 1969295 A2 20080917; EP 1969295 A4 20101222; US 2007289720 A1 20071220
DOCDB simple family (application)
US 2006047621 W 20061213; CA 2633250 A 20061213; EP 06847628 A 20061213; US 61019206 A 20061213