Heat-insulating body and a method of making same

Details Heat-insulating body and a method of making same Heat-insulating body and a method of making same

E - Fixed Constructions

04

B

154/143, 20/38.1

E04B 1/62 (2006.01) E04B 1/80 (2006.01) E04B 1/90 (2006.01) F16L 59/00 (2006.01) F16L 59/02 (2006.01)

Patent

CA 1127369

ABSTRACT OF THE DISCLOSURE A heat-insulating body such as a heat-insulating slab is made whose insulating and heat-absorbing material includes a fine powder, in particular a silica aerogel which is pressed to form the body. To carry out the pressing operation a sack-like sheath is required but between the sheath and the insulating material a separating agent is provided which results in the fact that the surface of the insulating material does not intimately engage with the sheath which is for example of glass fibre fabric, the sheath being movable with respect to the insulating material after the pressing operation. Apart from the fact that the sheath can be removed for any cases where it would be a cause of disturbance, additionally the insulating body provides improved bending properties and even when made with a high pressing rate has a homogeneous structure. To make the insulating body the separating agent may be applied to the inner surfaces of the sheath, the particulate insulating material then being introduced and the sheath sealed, whereafter pressure is applied.

356198

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