Patent · US Expired

Process for the production of polyester fibers and filaments which can be dyed in the absence of carriers and the filaments and fibers produced thereby

US4282137A · kind A · utility

7Cited by

6References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Armin Kohler · Ingolstadt, DE
Peter Hoffmann · Senden, DE
Herbert Pelousek · Dormagen, DE
Eduard Specht · Dormagen, DE

Key dates

Filing date	May 11, 1978
Grant date	Aug 4, 1981
Priority date	—
Expiry date	May 11, 1998

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F1/08
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to polyester filaments and fibers and a process for the production of such polyester filaments and fibers which can be dyed in the absence of a carrier which comprises introducing into the polymer to be spun a silicate charged with an inert gas melt, spinning the mixture obtained in known manner and further processing into filaments or fibers.

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