Water-soluble balloon
US5387147A · kind A · utility
30Cited by
12References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 19, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | May 19, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H2027/1025
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A balloon is formed from a water-soluble film which mainly comprises a polyvinyl alcohol. Coloring agents as food additives are used for pigmenting the balloon. The balloon per se is soluble in water upon coming in contact with water and accordingly, it never becomes a cause of environmental pollution. The coloring agents used are those for use in foods and thus they do not become a cause of environmental pollution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.