Prefabricated self-supporting panels and manufacture process thereof
AssigneePantec AG
InventorsPaolo Peccenini, Paolo Romini
Life of this patent
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Abstract
Prefabricated self-supporting panels having at least two outer layers and one inner layer provided with a foamed mixture, wherein the inner layer comprises unsaturated polyester resins, hollow microspheres of aluminum phyllosilicate having an average diameter of 150 microns and density of 0.7 kg/cu.dm., and a coupling agent of the organofunctional silane type. The process for the manufacture of these panels has also been described.
Claims15
A process of manufacturing prefabricated self-supporting panels which consists of forming a laminate having at least two outer layers and at least one inner layer, said at least one intermediate layer being made of a foamed mixture of (a) an unsaturated polyester resin, (b) hollow microspheres of aluminum phyllosilicate of an average diameter of 150 microns and density of 0.7 kg/cu.dm in a proportion of 5 to 20% by weight based on the unsaturated polyester resin, and (c) a coupling agent which comprises at least one organo-functional silane, in the proportion of 0.1 to 5.0% by weight based on the unsaturated polyester resin and the outer layers comprise a mixture of unsaturated polyester resin, granite grit and an organo-functional silane, the latter in a proportion of 0.1 to about 5.0% with respect to the unsaturated polyester resin, and allowing hardening to occur.
A prefabricated self-supporting panel which consists of a laminate having at least two outer layers and at least one inner layer, said at least one inner layer being made of a foamed mixture comprising:
- (a) an unsaturated polyester resin,
- (b) hollow microspheres of aluminum phyllosilicate having an average diameter of 150 microns and a density of 0.7 kg/dm.sup.3 in the proportion of 5-20% by weight based on the unsaturated polyester resin, and granulated material containing foamed clay having an average diameter of 15 to 20 mm and a specific gravity of 0.35 kg/dm.sup.3, and
- (c) an organo-functional silane derivative in the proportion of 0.1-5%.
Dependencies are inferred from the claim text.