Method of forming a sand base article using a decomposable binder and the article formed thereby
US5569514A · kind A · utility
35Cited by
22References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Jan 5, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Sand-based biodegradable articles, such as planar frangible targets and formed three-dimensional tableware and food containers, are disclosed. The articles are made formed of a mixture of sand and a decomposable binder, the binder preferably comprising by weight 30-40% starch, 20-30% salt, 1-3% oil and water. The articles are preferably coated with a decomposable waterproof sealant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.