Patent ID: 6682793
Filing Date: 2004-01-27
Classification: B32B,Y10T

Abstract:
A multi-layered structure comprising:a) a first layer comprising an ethylene/alpha-olefin copolymer having a density of less than 0.916 g/cc and a melting peak temperature of greater than 118Â° C.; and b) a second layer comprising a polyolefin that is autoclavable as determined by a procedure wherein film specimens were prepared 1 inch wide by 4 inches long (machine direction); a line was drawn 0.5 inch from each end of the film specimen providing a 3-inch test length; a static weight of approximately 100 gram was connected to one end of the specimen at the drawn line; a clip was attached to the other end at the drawn line, and the specimen (with the 100 gram static weight) was hung in an autoclave; the specimens were sterilized for one hour at 121Â° C.; after cooling, the specimens were removed and measured to determine change in length; the test was conducted 3 times for each specimen, and the results reported are an average; a structure is considered to be autoclavable if the change in length is less than 60%.