Patent ID: 6377755
Filing Date: 2002-04-23
Classification: G03B

Abstract:
A method of storing film in a car comprising placing said film in a container comprising an outer thermal insulating shell, a phase change material inside said shell, repeatedly cycling over a 24-hour period reaching 180Â° F. (82Â° C.) for up to four hours and a temperature below 110Â° F. (43Â° C.) to 130Â° F. (55Â° C.) for a period sufficient to allow the phase change material to revert entirely to a phase exhibited by said phase change material below its phase change temperature, wherein said container will maintain an internal temperature of less than 130Â° F. (55Â° C.) when cycled over a 24-hour period including up to four hours at 180Â° F. (82Â° C.), and wherein said phase change material changes phase between 110Â° F. (43Â° C.) and 130Â° F. (55Â° C.).