pH-regulating Cellulose fiber
US4634439A · kind A · utility
15Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1984 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Oct 12, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cellulose fiber which is carboxyalkylated in free acid form, a fiber mass formed therefrom, and a method for producing such fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.