B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 13/00 (2006.01) E04B 1/78 (2006.01)
Patent
CA 2266906
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 ~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 - 322 Pa of less than or equal to (0.260lnP + 4.53) milliWatt/meterK (mW/m.K) and a TC at 1333.322 - 13332.2 Pa of less than or equal to (0.824lnP + 0.47) mW/m.K. A preferred particulate composition is a gel composition. Also disclosed are insulation bodies comprising the particulate compositions.
L'invention concerne des compositions particulaires présentant une conductivité thermique améliorée. Dans un mode de réalisation, une composition particulaire qui, sous une charge de 103421 Pa, à 20 ·C et à une pression (P) variant entre 133,322 et 13332,2 Pa, dans un milieu azoté, présente une densité de tassement inférieure ou égale à 160 kg/m?3¿, une conductivité thermique (CT) entre 133, 322 et 1333,322 Pa inférieure ou égale à (0,260lnP + 4,53) milliwatt/mètreK (mW/m.K) et une CT entre 1333,322 et 13332,2 Pa inférieure ou égale à (0,824lnP + 0,47) mW/m.K. Une composition particulaire préférée est une composition à base de gel. L'invention concerne également des corps isolants contenant lesdites compositions particulaires.
Ackerman William C.
Maskara Alok
Smith Douglas M.
Cabot Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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