Method for manufacturing plastic-substitute goods by using natural materials
US6475416B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2711/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing plastic-substitute goods by using natural materials is disclosed. Agricultural byproducts and wood byproducts such as rice husks, rice plant stems, corn plant stems, bean plant stems, wheat plant stems, saw dust and the like are crushed into a particular size, then the crushed particles are mixed with natural adhesives (such as corn starch, potato starch and the like), and are coated with rosin or natural resins, and then a molding is carried out by applying a pressure in a molding machine, thereby manufacturing the plastic-substitute goods. The raw materials of the present invention are readily available from the rural areas, and the molding is carried out at a temperature of 100-300 degrees C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.