Microporous thermal insulation material
First Claim
1. A thermal insulation material comprising an intimate, dry mixture of a particulate microporous material and reinforcing glass filaments, wherein the glass constituting the glass filaments contains not more than 1 per cent by weight Na2 O.
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Accused Products
Abstract
A microporous thermal insulation material is formed from an intimate mixture of a dry particulate microporous material and reinforcing glass filaments. The glass constituting the glass filaments contains not more than 1 per cent by weight Na2 O and preferably has the following composition:
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SiO2 50-100 percent by weight Al2 O3 up to 25 percent by weight B2 O3 up to 8 percent by weight MgO up to 10 percent by weight CaO up to 21 percent by weight Na2 O up to 1 percent by weight K2 O up to 2 percent by weight Fe2 O3 up to 1 percent by weight F2 up to 1 percent by weight. ______________________________________
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Citations
22 Claims
- 1. A thermal insulation material comprising an intimate, dry mixture of a particulate microporous material and reinforcing glass filaments, wherein the glass constituting the glass filaments contains not more than 1 per cent by weight Na2 O.
- 12. An insulation member formed from a dry thermal insulation material comprising an intimate mixture of a particulate microporous material and reinforcing glass filaments, wherein the glass constituting the glass filaments contains not more than 1 percent by weight Na2 O.
Specification