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US 4,792,466 AGranted
Method of making panels of microporous thermal insulation
AssigneeMicropore International Limited
InventorsJoseph A. McWilliams, Derek E. Morgan, James D. J. Jackson
Life of this patent
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Abstract
A panel of microporous thermal insulation material is manufactured by applying a film of polyvinyl acetate emulsion to a non-porous substrate, such as a sheet of steel, and compacting powdery microporous thermal insulation material against the film so as to cause the consolidated insulation material to bond to the substrate and form a panel.
Claims7
A method of manufacturing a panel of microporous thermal insulation material, which method comprises the steps of:
- applying a film of polyvinyl acetate emulsion to a substantially rigid non-porous substrate;
- allowing the polyvinyl acetate to become dry to the touch;
- and
- compacting powdery microporous thermal insulation material against the film so as to cause the insulation material to consolidate and to bond to the substrate so as to form a panel.
1 more element
Dependencies are inferred from the claim text.