Process for hydrolysis removal of condensation polymer from various objects
US4424080A · kind A · utility
3Cited by
10References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1982 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Apr 13, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Condensation polymer coatings are removed from various objects to permit their reuse. Superheated water vapor flows in contact with the coating surfaces, excluding air therefrom while heating them to temperatures above the melting point of the polymer. The water vapor further enters into an hydrolysis reaction with the polymer to decompose it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.