Back to results
US 6,187,851 B1Granted
Surface protective layer for materials
AssigneeAusimont S.p.A.
InventorsStefano Netti, Camillo Di Carlo
Life of this patent
Estimating the term…
Abstract
An aqueous composition useful for the surface treatment of materials, which includes: (a) an inorganic silicate or colloidal silica present in an amount from 2 to 95% by weight based on the weight of dry product; and (b) a fluoroelastomer based on vinylidene fluoride (VDF) present in an amount from 5 to 98% by weight based on the weight of dry product.
Claims9
An aqueous composition consisting essentially of:
- (a) an inorganic compound selected from colloidal silica, silicates of sodium, potassium, ammonium, alkali or alkaline earth metals or mixtures thereof, present in an amount from 2 to 95% by weight, based on the weight of the dry product;
- and
- (b) a fluoroelastomer consisting essentially of vinylidene fluoride (VDF) and at least another ethylenically unsaturated fluorinated comonomer, or a mixture of fluoroelastomers, consisting of vinylidene fluoride (VDF) and at least another ethylenically unsaturated fluorinated comonomer, and a non-elastomeric homopolymer of VDF or a non-elastomeric VDF copolymer consisting of vinylidene fluoride (VDF) and at least another ethylenically unsaturated fluorinated comonomer, present in an amount from 5 to 98% by weight based on the weight of the dry product, wherein the VDF monomer is present in an amount between 35 and 85% by moles.
Dependencies are inferred from the claim text.