Process for protecting and consolidating stone materials
AssigneeAusimont S.p.A.
InventorsLiberato Mascia, Giovanni Moggi, Desiderata Ingoglia
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Abstract
Surfaces of stone materials, marble, sandstone, bricks, concrete and articles manufactured therefrom are consolidated and protected from atmospheric agents and pollutants by applying onto said surfaces a mixture consisting of: (a) 2-40% by weight of polyvinylidene fluoride, or 1-20% by weight of a polyalkylmethacrylate wherein the alkyl group contains from 1 to 4 carbon atoms; (b) an elastomeric copolymer of vinylidene fluoride, constituting the balance to 100% and being, in moles, 55-85% of vinylidene fluoride, 15-45% of hexafluoropropene and 0-30% of tetrafluoroethylene.
Claims8
A process for consolidating and protecting stone materials, marble, bricks, concrete and manufactured articles therefrom, from the degrading action caused by atmospheric agents and pollutants, which process comprises applying a protecting and consolidating agent thereto, said protective and consolidating agent comprising:
- (a) 2-40% by weight of a non-elastomeric (co)polymer based on vinylidene fluoride, or 1-20% by weight of a polyalkylmethacrylate, wherein the alkyl group contains form 1 to 4 carbon atoms;
- and
- (b) an elastomeric copolymer of vinylidene fluoride, constituting the balance to 100% by weight and formed of, in moles, 55-85% of vinylidene fluoride, 15-45% of hexafluoropropene and 0-30% of tetrafluorethylene.
Dependencies are inferred from the claim text.