| abstract |
(57) [Summary] [Problem] To eliminate the possibility of color turbidity, rubber odor, or allergy, without impairing the properties of natural rubber, which has large elongation, high elasticity, and strong coating strength. To provide a rubber balloon that can be inflated as easily as possible while eliminating and inflating with inspiration. SOLUTION: A rubber balloon is formed by a deproteinized natural rubber latex in which protein is removed to 0.1% or less as represented by a nitrogen content (N%) in a solid content. |