Compositions and insulation bodies having low thermal conductivi

Details Compositions and insulation bodies having low thermal conductivi Compositions and insulation bodies having low thermal conductivi

1996-09-27

1999-03-02

Marcantoni, Paul

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

252 62, 25231501, 2523151, 2523156, 2523157, 423335, 423338, 423592, 423610, 423625, C04B 300

Patent

active

058771000

ABSTRACT:
The present invention relates to particulate compositions having improved thermal conductivity values. An embodiment of the present invention is a particulate composition which under a 103421 Pa load, at 20.degree. C., and at a pressure (P) within the range of 133.322-13332.2 Pa, in Nitrogen, has: a packing density of less than or equal to 160 kg/m3, and a Thermal Conductivity (TC) at 133.322-1333.22 Pa of less than or equal to (0.260 lnP+4.53) milliWatt/meterK (mW/m.multidot.K) and a TC at 1333.22-13332.2 Pa of less than or equal to (0.824 lnP+0.47) mW/m.multidot.K. A preferred particulate composition is a gel composition. Also disclosed are insulation bodies comprising the particulate compositions.

REFERENCES:
patent: 2745173 (1956-05-01), Janos
patent: 2973282 (1961-02-01), Gross
patent: 3367742 (1968-02-01), Marotta et al.
patent: 3453127 (1969-07-01), Marotta et al.
patent: 3790243 (1974-02-01), Whorton, III
patent: 3869334 (1975-03-01), Hughes et al.
patent: 3962014 (1976-06-01), Hughes et al.
patent: 4150101 (1979-04-01), Schmidt et al.
patent: 4159359 (1979-06-01), Pelloux-Gervais et al.
patent: 4284674 (1981-08-01), Sheptak
patent: 4399175 (1983-08-01), Kummermehr et al.
patent: 4444821 (1984-04-01), Young et al.
patent: 4564547 (1986-01-01), Hughes
patent: 4583351 (1986-04-01), Takahashi et al.
patent: 4594279 (1986-06-01), Yoneno et al.
patent: 4636416 (1987-01-01), Kratel et al.
patent: 4667417 (1987-05-01), Graser et al.
patent: 4681788 (1987-07-01), Barito et al.
patent: 4704374 (1987-11-01), Jacques
patent: 4726974 (1988-02-01), Nowobilski et al.
patent: 4798753 (1989-01-01), Abuaf et al.
patent: 4954327 (1990-09-01), Blount
patent: 4997804 (1991-03-01), Pekala
patent: 5018328 (1991-05-01), Cur et al.
patent: 5032439 (1991-07-01), Glicksman et al.
patent: 5076984 (1991-12-01), Bisplinghoff et al.
patent: 5082335 (1992-01-01), Cur et al.
patent: 5084320 (1992-01-01), Barito et al.
patent: 5086085 (1992-02-01), Pekala
patent: 5091233 (1992-02-01), Kirby et al.
patent: 5122291 (1992-06-01), Wolff et al.
patent: 5124101 (1992-06-01), Hirao et al.
patent: 5124364 (1992-06-01), Wolff et al.
patent: 5137927 (1992-08-01), Wolff et al.
patent: 5252408 (1993-10-01), Bridges et al.
patent: 5273801 (1993-12-01), Barry et al.
patent: 5275796 (1994-01-01), Tillotson et al.
patent: 5294480 (1994-03-01), Mielke et al.
patent: 5306555 (1994-04-01), Ramamurthi et al.
patent: 5316816 (1994-05-01), Sextl et al.
patent: 5327703 (1994-07-01), Cur et al.
patent: 5331789 (1994-07-01), Cur et al.
patent: 5364577 (1994-11-01), Cur et al.
patent: 5376348 (1994-12-01), Stolilov et al.
patent: 5376449 (1994-12-01), Harris et al.
patent: 5391364 (1995-02-01), Cogliati
patent: 5395805 (1995-03-01), Droege et al.
patent: 5399408 (1995-03-01), Nowara
patent: 5409683 (1995-04-01), Tillotson et al.
patent: 5420168 (1995-05-01), Mayer et al.
patent: 5478867 (1995-12-01), Tabor
patent: 5480696 (1996-01-01), Harris et al.
patent: 5587107 (1996-12-01), Schwertfeger et al.
patent: 5646079 (1997-07-01), Eckstein
"Powder-Filled Evacuated Thermal Insulation Panel," New Materials & New Processes, vol. 3 (1985), by H. Yoneno.
Proceedings of the Fourth International Symposium on AEROGELS, Sep. 19-21, 1994, Journal of Non-Crystalline Solids, vol. 186.
Sol-Gel Science, The Physics and Chemistry of Sol-Gel Processing, by c. Jeffrey Brinker, Sandia National Laboratories and George W. Scherer, E.I. du Pont de Nemours & Company.
"Microcellular Polyurea Xerogels for Use in Vacuum Panels" by R.L. Tabor, 35th Annual Polyurethane Technical/Marketing Conference, Oct. 9-12, 1994.
"Thermal Conductivity of Granular SiO.sub.2 Aerogel," by D. Buttner, E. Hummer and J. Fricke, Physikalisches Institut der Universitat, Am Hubland, D-8700, Wurzburg, F.R.G.
"Thermal Properties of Silica Aerogels," by J. Fricke, E. Hummer, H.-J. Morper and P. Scheuerpflug, Revue de Physique Appliquee, Colloque, C4, Supplement au No. 4, Tome 24, Avril 1989.
"Thermal transport in organic and opacified silica monolithic aerogels," Journal of Non-Crystalline Solids 145 (1992) 207-210 North-Holland, by X. Lu, P. Wang, M.C. Arduini-Schuster, J. Kuhn, D. Buttner, O. Nilsson, U. Heinemann and J. Fricke.
"Thermal conductivity of silica aerogel powders at temperatures from 10 to 275 K," Journal of Non-Crystalline Solids 186 (1995) 278-284, by Th. Rettelbach, J. Sauberlich, S. Korder, J. Fricke.
"Santocel," Technical Bulletin 1-180, Oct., 1959, Monsanto Chemical Company.
"Heat-transfer in opacified aerogel powders," Journal of Non-Crystalline Solids 145 (1992) 211-216 North-Holland by E. Hummer, X. Lu, Th. Rettelbach and J. Fricke.
Proceedings of the International Conference on Thermal Insulation, vol. Eight, 1992, presented at the Eigth International Conference on Thermal Insulation, Mar. 9 to 11, 1992.
"Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus," Annual Book of ASTM Standards, vol. 04.06, Designation C 1114-92.
"Standard Terminology Relating to Thermal Insulating Materials," Annual Book of ASTM Standards, Designation C 168-90.
"Literature Review: Heat Transfer Through Two-Phase Insulation Systems Consisting of Powders in a Continuous Gas Phase," ORNL, Martin Marietta Energy Systems, Inc., by David W. Yarbrough.
"Thermal Properties of Organic and Inorganic Aerogels", J. Mater, vol. 9, No. 3, Mar. 1994 by Lawrence W. Hrubesh and Richard W. Pekala.
"On the Way to Commercial Production of Silica Aerogel," Journal of Non-Crystalline Solids 186 (1995) 380-387 by G. Herrmann, R. Iden, M. Mielke, F. Teich, B. Ziegler.
"Optimization of monolithic silica aerogel insultants," Int. J. Heat Mass Transfer, vol. 35, No. 9, pp. 2305-2309, 1992, by J. Fricke, X. Lu, P. Wang, D. Buttner and U. Heinemann.
"Opacified Silica Aerogel Powder Insulation," Thermochimica Acia. 218 (1993) 269-276, by E. Hummer, Th. Rettelbach, X. Lu, J. Fricke.
"Open Cel Isocyanurate Foams for Vacuum Insulation Panels," Journal of Cellular Plastics, vol. 31, Mar. 1995, by Kaneyoshi Ashida and Josho Iashiwame.
"Development of Micro Cellular Open Cell Rigid Polyurethane Foams," Polyurethanes World Congress 1993---Oct. 10-13, 1993, by K. Kodama, K. Yuge, Y. Masuda and Y. Tanimoto.
"The Thermal Resistance of Fine Powders at Atmospheric Pressure and under Vacuum," Metals and Ceramics Division, Oak Ridge National Laboratory, by D.L. McElroy, F.J. Weaver, D.W. Yarbrough and R.S. Graves.
"New organic aerogels based on a phenolic-furfural reaction," Journal of Non-Crystalline Solids 188 (1995) 34-40, by R.W. Pekala, C.T. Alviso, X. Lu, J. Gross and J. Fricke.
"Deformation of aerogels during characterization," Journal of Non-Crystalline Solids 186 (1995) 309-315, by George W. Scherer, Douglas M. Smith and David Stein.
"Preparation of low-density xerogels at ambient pressure," Journal of Non-Crystalline Solids 186 (1995) 104-112, by Douglas M. Smith, David Stein, Julie M. Anderson and William Ackerman.
"Aerogels -- A Fascinating Class of High-Performance Porous Solids," Proceedings of the First International Symposium, Wurzberg, Fed. Rep. of Germany, Sep. 23-25, 1985, by J. Fricke.
"Plastic behaviour of aerogels under isostatic pressure," Journal of Non-Crystalline Solids 186 (1995) 321-327, by L. Duffours, T. Woignier and J. Phalippou.
"Interpretation of mercury porosimetry applied to aerogels," J. Mater. Res., vol. 10, No. 8, Aug. 1995, by R. Pirard, S. Blacher, F. Brouers and J.P. Pirard.
"Aerogels -- Nanoporous Materials, Part I: Sol-Gel Process and Drying of Gels," Journal of Porous Materials, 1.7-17 (1995), by T. Heinrich, U. Klett and J. Fricke.

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