Forming solutions
US5534113A · kind A · utility
18Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1995 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Mar 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S159/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A solution of cellulose is formed by moving a premix of a tertiary amine N-oxide, water and cellulose through a thin-film evaporator using a bladed rotor under treatment conditions which specify, inter alia, an area of heated surface (1 m.sup.2 to 125 m.sup.2), a blade speed (2.5 to 8 m/sec), a pressure (25 to 100 mb) and a temperature (90.degree. to 135.degree. C.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.