Patent ID: 7465484

Claim:
A lightweight multilayer heat reflective concrete cure blanket, comprising: a first flexible structure having a first outer peripheral edge and comprising a first moisture-impervious outer film and a first flexible undulating film heat sealed to the first moisture-impervious outer film forming a plurality of first air-filled insulative pockets and a plurality of first open spaces between the first air-filled pockets; a second flexible structure having a second outer peripheral edge and comprising a second moisture-impervious outer film and a second flexible undulating film heat sealed to the second moisture-impervious outer film forming a plurality of second air-filled insulative pockets and a plurality of second open spaces between the second air-filled insulative pockets, wherein the second moisture-impervious outer film includes a plurality of heat reflective elements dispersed throughout the second moisture-impervious outer film; and the first flexible structure sealed to the second flexible structure about the first and second outer peripheral edges including a chamber space formed between the first air-filled insulative pockets and the second air-filled insulative pockets, wherein the first and second open spaces face the second and first air-filled pockets, respectively, and communicate in a heat transfer path as to form a flexible heat reflective concrete cure blanket.