Balloon made of metal vapor deposited film

Details Balloon made of metal vapor deposited film Balloon made of metal vapor deposited film

1989-11-16

1990-05-29

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft, lighter-than-air

Balloons

B64B 158, B64B 140

Patent

active

049289080

ABSTRACT:
The balloon according to the invention is formed by heat-sealing at least one heat-sealable sheet which comprises a plastic film and a metal vapor deposition layer formed on one side of the plastic film. The metal vapor deposition layer is discontinuously formed so that the sheet has a metallic but insulating surface. Resultantly, the balloon having a dielectric breakdown voltage of not less than 1000 V can be easily obtained. Preferably, the metal vapor deposition layer is formed in a state of islands in the sea, the size of the island being 200 .ANG. to 1 .mu.m and the interval between the islands being 100 .ANG. to 5000 .ANG..

REFERENCES:
patent: 4077588 (1978-03-01), Hurst
patent: 4340276 (1982-07-01), Moffitt et al.
patent: 4407871 (1983-10-01), Eisfeller

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