Patent · US Expired

Hydrophilic bi-component threads

US4163078A · kind A · utility

15Cited by

13References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ulrich Reinehr · Dormagen, DE
Christian Pieper · Neuss, DE
Peter Kleinschmidt · Munich, DE

Key dates

Filing date	Jun 7, 1977
Grant date	Jul 31, 1979
Priority date	—
Expiry date	Jun 7, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2929
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a bi-component filament or fibre of a fibre-forming synthetic polymer having a core/sheath structure in at least one component and having a moisture absorption of at least 1.5% at 65% relative atmospheric humidity and at a temperature of 21.degree. C. and a moisture absorption of at least 5% at 90% relative atmospheric humidity and 21.degree. C. and a water-retention-power of at least 10% as well as to a process for the production thereof.

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