Patent ID: 8398807

Claim:
A method for manufacturing a lightweight multilayer heat reflective concrete cure blanket, comprising: a. forming a first flexible structure having a first outer peripheral edge and comprising a first moisture-impervious outer film and a first flexible undulating film; b. heat sealing the first flexible undulating film to the first moisture-impervious outer film to form a plurality of first air-filled insulative pockets and a plurality of first open spaces between the first air-filled pockets; c. forming a second flexible structure having a second outer peripheral edge and comprising a second moisture-impervious outer film and a second flexible undulating film; d. heat sealing the second flexible undulating film 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 e. sealing the first flexible structure to the second flexible structure about the first and second outer peripheral edges to include a moisture-impervious chamber space formed between the first air-filled insulative pockets and the second air-filled insulative pockets, facing the first open spaces to the second air-filled pockets and facing the second open spaces to the first air-filled pockets while maintaining a gap between the first air-filled pocket and the second air-filled pocket, overlapping the first air-filled pockets with the second air-filled pockets to form a gap between first air-filled pockets and the second air-filled pockets as to communicate in a heat transfer path therebetween, and forming a flexible heat reflective concrete cure blanket.