Active ice-phobic freeze-point reducing anti-ice coating and method for providing anti-ice protection to surfaces
OwnerJames Thomas Carterinventor
Life of this patent
Estimating the term…
Abstract
The present invention provides a method for providing anti-ice protection to surfaces, particularly aerodynamic surfaces, to prevent foul weather icing for extended periods of time and over repeated icing situations, comprising applying an organic polymer matrix layer to the surface where the organic polymer matrix layer comprises a homopolymer comprising up to 50% porous polymer solids having a pore size of up to 100 Angstroms and being capable of absorbing and chemically bonding an aqueous freeze-point depressant solution in amounts of up to 99.75% by weight.
Claims28
A freeze-point reducing method for single or repeated icing events comprising providing a freeze protection composite on a surface to be protected, said composite comprising a super absorbent polymer applied to said surface providing a continuous absorbent coating on said surface, and an aqueous freeze-point depressant solution applied to said super absorbent polymer coating whereby a content of at least 50% of said freeze-point depressant solution is absorbed and held by said super absorbent polymer providing freeze-point reduction throughout single or repeated icing events.
An anti-icing film comprising a polymer film substrate having a first side and a second side, an adhesive layer on said first side and a super absorbent polymer layer on said second side, wherein said super absorbent polymer is capable of absorbing and holding at least 50% of an aqueous freeze-point depressant solution and wherein said anti-icing film is applied to a surface with said super absorbent polymer outermost to prevent ice formation thereon.
A method for providing anti-icing to aerodynamic surfaces to prevent foul weather icing comprising applying an organic polymer matrix layer to said surface, said organic polymer matrix layer comprising a homopolymer comprising 1 to 5% porous polymer solids having a pore size of at least 90 Angstroms being capable of absorbing and chemically bonding an aqueous freeze-point depressant solutions in amounts of up to 99.75% by weight, whereby said freeze-point depressant solution is maintained on said aerodynamic surfaces for extended periods of time.
A method of applying anti-icing protection to a surface comprising:
- cleaning and degreasing said surface,
- applying a hydrophilic polyacrylic coating to said surface, wherein said hydrophilic polyacrylic coating comprises a homopolymer having a water to solid ratio when hydrated of at least 1:1 and a water content when hydrated of from 50-99.75%.
Dependencies are inferred from the claim text.