Inventors:
Gianfranco Chicarella - North Providence RI, US
Nao Yokota - Saunderstown RI, US
Tracy A. Paolilli - East Greenwich RI, US
John J. Fitch - Middletown RI, US
Todd Richard Sarnstrom - Ellsworth WI, US
Dean Borchardt - River Falls WI, US
Paul Andrew Ansolabehere - Minnetonka MN, US
Steven Sargeant - Kingston RI, US
Assignee:
Toray Plastics (America), Inc. - North Kingstown RI
Anagram International, Inc. - Eden Prairie MN
International Classification:
B32B 1/00
B32B 1/08
US Classification:
428 357, 428 341, 428 344, 428 359, 428 369, 428480
Abstract:
A long life balloon formed from a lamination. The lamination includes a polyester film with a total thickness of 4 μm to 12 μm. The polyester film includes a biaxially oriented polyester core layer and at least one amorphous copolyester skin layer. The lamination also includes a sealant layer and a gas barrier layer on an opposite side of the polyester film from the sealant layer. The oxygen transmission rate of the balloon is less than 0. 1 cc/100 sqin/day, a bonding strength of the gas barrier layer to the surface of the polyester film is more than 300 g/in at dry conditions, a sealing strength of the balloon is more than 3. 5 kg/in, and a floating time of the balloon is more than 20 days.