Patent · US Expired

Water-insoluble fibers of cellulose acetate, cellulose propionate and cellulose butyrate with an extremely high absorptive capacity for water and physiological liquids

US4543409A · kind A · utility

16Cited by

6References

2Claims

0Family size

Assignee

Akzo N.V. · NL

Inventors

Michael Diamantoglou · Zell am Harmersbach, DE
Alexander Brandner · Erlenbach a.Main, DE
Gerhard Meyer · Erlangen, DE

Key dates

Filing date	Dec 12, 1983
Grant date	Sep 24, 1985
Priority date	—
Expiry date	Dec 12, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2913
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention refers to water-insoluble fibers of cellulose acetate cellulose propionate and cellulose butyrate with an extremely high absorptive capacity for water and physiological liquids and to a process for their preparation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.