Amusement devices: toys – Inflatable – Including externally applied sealing element
Patent
1984-03-22
1987-01-06
Shay, F. Barry
Amusement devices: toys
Inflatable
Including externally applied sealing element
427230, 427231, 428 12, 428492, 446220, A63H 306
Patent
active
046343954
ABSTRACT:
A composition and method and apparatus for increasing the buoyant lifetime of a gas inflatable elastomeric balloon wherein a surface of a balloon is coated with an aqueous solution containing 3 to 50 percent polyvinyl alcohol, and up to 20 percent of a water soluble plasticizer for polyvinyl alcohol such as glycerine, which coating is dried while the balloon is in the inflated condition. Treatment of a rubber latex balloon having an inflated diameter of about 15 cm to about 50 cm by the method of this invention can increase its buoyant lifetime about 600 percent without significantly changing the appearance of the balloon.
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