Patent · US Expired

Very fine denier synthetic fibers

US4497868A · kind A · utility

8Cited by

4References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ulrich Reinehr · Dormagen, DE
Toni Herbertz · Dormagen, DE
Hermann-Josef Jungverdorben · Dormagen, DE
Joachim Dross · Dormagen, DE

Key dates

Filing date	Feb 22, 1983
Grant date	Feb 5, 1985
Priority date	—
Expiry date	Feb 22, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2978
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Dry-spun synthetic fibers and filaments having an individual as-spun denier of 3 dtex are obtained by dry spinning a viscosity-stable spinning solution with a draft of at least 20.

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