Reuse of plastic
US5203067A · kind A · utility
10Cited by
7References
6Claims
0Family size
Inventor
Key dates
| Filing date | May 22, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | May 22, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49821
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Plastics having coatings are reused by first removing the coatings as by shaving or treatment with solvents or jets of hot liquid or vapor that melt the coatings and blow them away. Thin plastic pieces like compact discs are passed through surface milling apparatus which shaves off the coatings. After the shaving, the discs are brushed while rotating around their centers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.