A composite tack film includes a) a first polymer layer including a thermally conductive polymer having a melting temperature of less than about 100° C.; b) a second polymer layer adjacent the first polymer layer, the second polymer layer including a visco-elastic, thermally conductive polymer havin
A composite tack film includes a) a first polymer layer including a thermally conductive polymer having a melting temperature of less than about 100° C.; b) a second polymer layer adjacent the first polymer layer, the second polymer layer including a visco-elastic, thermally conductive polymer having a melting temperature of less than about 110° C.; and c) a third polymer layer adjacent the second polymer layer, the third polymer layer including a thermally insulative polymer having a melting temperature of less than about 100° C. Further included is a method of reinforcing pavement with the aforementioned composite tack film.
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1. A paving structure comprising: a lower layer of paving material;a composite tack film overlying the lower layer of paving material, the composite tack film comprising (a) a first polymer layer comprising a thermally conductive polymer having a melting temperature of less than about 100° C., (b) a
1. A paving structure comprising: a lower layer of paving material;a composite tack film overlying the lower layer of paving material, the composite tack film comprising (a) a first polymer layer comprising a thermally conductive polymer having a melting temperature of less than about 100° C., (b) a second polymer layer adjacent the first polymer layer, the second polymer layer comprising a visco-elastic, thermally conductive polymer having a melting temperature of less than about 110° C., and (c) a third polymer layer adjacent the second polymer layer, the third polymer layer comprising a thermally insulative polymer having a melting temperature of less than about 100° C., wherein the third polymer layer is substantially free of a filler; andan upper layer of paving material overlying the composite tack film. 2. The paving structure of claim 1, wherein the first polymer layer of the composite tack film comprises an ethylene vinyl acetate copolymer and a filler. 3. The paving structure of claim 2, wherein the ethylene vinyl acetate copolymer of the first polymer layer has a vinyl acetate content of about 10% by weight to about 40% by weight, based on the total weight of the ethylene vinyl acetate copolymer. 4. The paving structure of claim 2, wherein the filler of the first polymer layer is calcium carbonate, talc, an inorganic particle with a metal coating, carbon black, or combination thereof. 5. The paving structure of claim 1, wherein the second polymer layer of the composite tack film comprises a polymer blend of an ethylene vinyl acetate copolymer and a polyolefin with a filler. 6. The paving structure of claim 5, wherein the ethylene vinyl acetate copolymer of the second polymer layer has a vinyl acetate content of about 15% by weight to about 30% by weight, based on the total weight of the ethylene vinyl acetate copolymer. 7. The paving structure of claim 5, wherein the polyolefin of the second polymer layer has a melting temperature of less than about 120° C. 8. The paving structure of claim 7, wherein the polyolefin of the second polymer layer is low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or blends thereof. 9. The paving structure of claim 5, wherein the filler of the second polymer layer is calcium carbonate, talc, an inorganic particle with a metal coating, carbon black, or combination thereof. 10. The paving structure of claim 1, wherein the third polymer layer of the composite tack film is an ethylene vinyl acetate copolymer. 11. The paving structure of claim 10, wherein the ethylene vinyl acetate copolymer of the third polymer layer has a vinyl acetate content of about 10% by weight to about 40% by weight, based on the total weight of the ethylene vinyl acetate copolymer. 12. The paving structure of claim 1, wherein the composite tack film forms an adhesive bond to the lower layer of paving material and the upper layer of paving material. 13. The paving structure of claim 1, wherein the composite tack film has an activation temperature of less than about 300° F. when applied to the paving structure. 14. The paving structure of claim 1, further comprising a reinforcing grid over the lower layer of paving material. 15. The paving structure of claim 14, wherein the reinforcing grid comprises fiberglass. 16. The paving structure of claim 15, wherein the fiberglass comprises a resinous coating. 17. The paving structure of claim 1, wherein the upper layer of paving material is asphalt. 18. The paving structure of claim 1, wherein the lower layer of paving material is an existing road surface. 19. The paving structure of claim 18, wherein the existing road surface comprises concrete, asphalt, or combination thereof. 20. A paving structure comprising: a lower layer of paving material;a reinforcing grid overlying the lower layer of paving material;a composite tack film overlying the reinforcing grid, the composite tack film comprising (a) a first polymer layer comprising a thermally conductive polymer having a melting temperature of less than about 100° C., (b) a second polymer layer adjacent the first polymer layer, the second polymer layer comprising a visco-elastic, thermally conductive polymer having a melting temperature of less than about 110° C., and (c) a third polymer layer adjacent the second polymer layer, the third polymer layer comprising a thermally insulative polymer having a melting temperature of less than about 100° C., wherein the third polymer layer is substantially free of a filler; andan upper layer of asphaltic material overlying the composite tack film.
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이 특허에 인용된 특허 (43)
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