Claims
- 1. An anti-freezing liquid for aircrafts and runways, wherein the vapor pressure of the said liquid if less than 5 Pa and the acute oral toxicity, LD50, in rats is more than 10 000 mg/kg, and said liquid's freezing point of a 50% liquid is below −38° C.
- 2. The liquid according to claim 1, wherein said liquid's freezing point of a 35% liquid is −15° C. or below −15° C.
- 3. The liquid according to claim 1, wherein said liquid's surface tension of a50% liquid is more than 55 dyn/cm.
- 4. The liquid according to claim 1, wherein the liquid comprises 10-60 wt- % trimethyl glycine or derivative thereof, and 40-90 wt- % water.
- 5. The liquid according to claim 1, wherein the liquid comprises 40-55 wt- % trimethyl glycine or derivatives thereof, and 45-60 wt- % water.
- 6. The liquid according to claim 1, wherein the liquid comprises trimethyl glycine from a biological source, or derivatives thereof.
- 7. The liquid according to claim 1, wherein said anti-freezing liquid is used at a temperature ranging between −50 and +100° C.
- 8. The liquid according to claim 1, wherein the liquid comprises as additives corrosion inhibitors, stabilizers, markers, thickeners, surface active agents, other anti-freezes, or compounds for controlling the acidity.
- 9. The liquid according to claim 1, wherein said anti-freezing liquid is used at a temperature ranging between −40 and +80° C.
- 10. The method of preventing freezing of aircrafts and runways, comprising the step of applying a liquid comprising 10-60 wt- % trimethyl glycine or derivatives thereof, and 40-90 wt- % water to said aircraft or said runway.
- 11. A method of preventing freezing of aircrafts and runways, comprising the step of applying a liquid to said aircraft or said runway, wherein the vapor pressure of said liquid is less than 5 Pa and the acute oral toxicity, LD50, in rats is more than 10 000 mg/kg, and said liquid's freezing point of a 505 liquid is below −38° C.
- 12. A method of preventing freezing of aircrafts and runways according to claim 11, comprising the step of applying the liquid having a freezing point of a 35% liquid that is 31 15° C. or below −15° C.
- 13. A method of preventing freezing of aircrafts and runways according to claim 11, by applying the liquid to said aircraft or said runway wherein said liquid's surface tension of a 50% liquid is more than 55 dyn/cm.
- 14. A method of preventing freezing of aircrafts and runways according to claim 11, by applying the liquid to said aircraft or said runway wherein the liquid comprises 10-60 wt- % trimethyl glycine or derivatives thereof, and 40-90 wt- % water.
- 15. A method of preventing freezing of aircrafts and runways according to claim 11, by applying a liquid to said aircraft or said runway wherein the liquid comprises 40-55 wt- % trimethyl glycine or derivatives thereof, and 45-60 wt- % water.
- 16. A method of preventing freezing of aircrafts and runways according to claim 11, by applying a liquid to said aircraft or said runway wherein the liquid comprises trimethyl glycine from a biological source, or derivatives thereof.
- 17. A method of preventing freezing of aircrafts and runways according to claim 11, by applying a liquid to said aircraft or said runway wherein said anti-freezing liquid is used at a temperature ranging between −50° and +100° C.
- 18. A method of preventing freezing of aircrafts and runways according to claim 11, by applying a liquid to said aircraft or said runway wherein the liquid comprises as additives corrosion inhibitors, stablizers, markers, thickeners, surface active agents, other anti-freezes, or compounds for controlling the acidity.
- 19. A method of preventing freezing of aircrafts and runways according to claim 11, by applying a liquid to said aircraft or said runway wherein said anti-freezing liquid is used at a temperature ranging between −40° and +80° C.
Priority Claims (1)
Number |
Date |
Country |
Kind |
973552 |
Aug 1997 |
FI |
|
Parent Case Info
This application is the national phase under 35 U.S.C. §371 of PCT International Application No. PCT/FI98/00663 under which has an International filing date of Aug. 26, 1998, which designated the United States of America.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/FI98/00663 |
|
WO |
00 |
4/6/2000 |
4/6/2000 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO99/11729 |
3/11/1999 |
WO |
A |
US Referenced Citations (5)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0743305 |
Nov 1996 |
EP |
99260 |
Oct 1997 |
FI |
1664808 |
Jul 1991 |
SU |
97031988 |
Sep 1997 |
WO |