초록 ▼

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

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.

대표청구항 ▼

A method of coating an inflatable elastomeric toy balloon having an inflated diameter of from about 15 cm to about 50 cm with a diffusion barrier film to increase the floating lifetime of the balloon when in an inflated condition, comprising the steps of: applying a liquid comprising an aqueous solu

A method of coating an inflatable elastomeric toy balloon having an inflated diameter of from about 15 cm to about 50 cm with a diffusion barrier film to increase the floating lifetime of the balloon when in an inflated condition, comprising the steps of: applying a liquid comprising an aqueous solution of a dispersed gas diffusion barrier coating material to a surface of the balloon; expanding the coated surface by inflating the balloon; and drying the liquid while the balloon is in an inflated condition with said surface expanded. An inflatable balloon comprising an elastomeric material, said elastomeric material having inside and outside surfaces adapted to be expanded by inflation of said balloon, and a gas barrier coating on at least one of said surfaces comprising a polyvinyl alcohol.