Apparatus and method for extracting plasticizer
US6063899A · kind A · utility
10Cited by
23References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for extracting plasticizer from polymer structures includes, in one embodiment, a vacuum chamber, a heating member and a condenser, the plasticizer being vaporized from the polymer structure by a combination of low temperature and heat, and in another embodiment, an evaporation chamber, a conveyer belt, and a plasticizer removal system, the plasticizer removal system including a duct having mounted therein a heating member, a fan and a condenser so that plasticizer may be extracted by forced air convection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.