Method for manufacture of biodegradable disposable container
US5389322A · kind A · utility
Inventors
Key dates
| Filing date | Sep 20, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Sep 20, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1348
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for manufacture of a biodegradable disposable container, which container is biodegradable and reduces generation amount of the refuse, and prevents environmental pollution. The method comprises the steps of i) mixing 40-46 weight % of fine granular sawdust powder with 29-35 weight % of albumen and agitating, ii) mixing the result mixture with 17-23% of a potato starch and 4-6% of sodium metaphosphate and agitating, iii) compression-molding the result mixture into a container by a compression mold under the pressure of about 3 Kg/cm.sup.2, iv) steaming the compression-molded container in a steaming box for about 30 minutes at a temperature in the range of about 85.degree. C.-95.degree. C. and drying, and v) applying a resin coating to inner and outer surfaces of the container and drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.