Back to results
US 12,571,166 B2Granted
Anti-icing laminate material and the use thereof
AssigneeDow Global Technologies LLC
InventorsLiang Zhang, Wei Li
Life of this patent
Estimating the term…
Abstract
A unique laminate comprising a base mat layer, a first sealing layer, a second sealing layer, and a top layer is provided, wherein the unique laminate can effectively inhibit the formation or accumulation of ice or snow on the surface of a substrate while can still achieve superior structural integration and mechanical strength. The use of the laminate material and a method for inhibiting the formation or accumulation of ice or snow on the surface of a substrate are also provided.
Claims7
An anti-icing laminate material comprising, in a sequence from bottom to top:
- (a) a base mat layer, derived from a first group of raw materials comprising (i) a first waterborne adhesive in an amount from 10 wt % to 50 wt % based on the total weight of the first group of raw materials, (ii) a gel of a first phase change material in an amount from 20 wt % to 70 wt % based on the total weight of the first group of raw materials, wherein the gel comprises the first phase change material and a binder and wherein the binder comprises a polyurethane binder or an isocyanate prepolymer binder, and (iii) first elastic particles in an amount from 20 wt % to 70 wt % based on the total weight of the first group of raw materials, wherein the base mat layer has a thickness of 5 to 20 mm;
- (b) a first sealing layer, derived from a second group of raw materials comprising a second waterborne adhesive, an emulsion of a second phase change material, and second elastic particles;
- (c) a second sealing layer, derived from a third group of raw materials comprising a third waterborne adhesive and third elastic particles, wherein the second sealing layer is free of any phase change material;
- and
- (d) a top layer derived from a fourth group of raw materials comprising a fourth waterborne adhesive and optional solid filler particles, wherein the top layer is free of any phase change material and wherein the top layer has a thickness of up to 0.60 mm;
- wherein each of the first, second, third and fourth waterborne adhesives is in the form of an aqueous dispersion and independently comprises water-miscible polymer(s) selected from the group consisting of poly (meth) acrylic polymer, polyurethane, polysiloxane, polyvinyl acetate latex, styrenic resin, styrene-acrylic resin, linseed resin, soya oil resin, alkyd resin and any copolymers or combinations thereof;
- wherein each of the first and second phase change materials are independently selected from the group consisting of silicone phase change material, fully refined paraffin phase change material, half refined paraffin phase change material, organic carboxylic acid phase change material, inorganic salt phase change material, hydrated salt phase change material, and any combinations thereof;
- and
- wherein each of the first, second and third elastic particles is formed by material(s) independently selected from the group consisting of natural rubber, synthetic rubber, polyolefin elastomer, poly (alkylene halide) elastomer, poly (meth) acrylic elastomer, polyurethane elastomer, polystyrene elastomer, polyester elastomer, polyamide elastomer, polysiloxane, soft wood, and any combinations thereof.
6 more elements
Dependencies are inferred from the claim text.