Compositions – Heat-exchange – low-freezing or pour point – or high boiling... – Organic components
Reexamination Certificate
2008-07-29
2008-07-29
Green, Anthony J. (Department: 1793)
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
Organic components
C106S013000, C062S118000, C062S235100, C126S910000, C165S104190, C165S104280, C165S104310, C252S070000, C252S071000, C252S074000, C252S075000, C252S076000, C252S077000, C252S078100, C252S079000
Reexamination Certificate
active
07404911
ABSTRACT:
The present invention relates to heat-transfer concentrates for solar installations, containinga) from 92 to 99% by weight of at least one polyglycol of the formula R—O—(CH2—CH2—O)n—H, in which n is an integer of from 3 to 500 and R is H, a C1- to C4-alkyl group or an aromatic radical having 6 to 12 carbon atoms,b) from 1 to 8% by weight of at least one corrosion inhibitor,with the proviso that its content of ethylene glycol and 1,2-propylene glycol is less than 0.2% by weight.
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English Language Abstract of DE 195 25 090, Jan. 16, 1997.
Korrosionsuntersuchungen in Waermetraegern fuer Solaranlagen, Arbeitsgemeinschaft Korrosion E.V., (1988) p. 297-304, vol. 39, Germany.
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Hafner Markus
Mauerberger Stefan
Schuster Johann
Stankowiak Achim
Clariant International Ltd.
Green Anthony J.
Silverman Richard P.
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