Process for dyeing or printing/flame retarding aramids with N-octyl-pyrrolidone swelling agent
US5215545A · kind A · utility
22Cited by
8References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 16, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Mar 16, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/925
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Poly(m-phenyleneisophthalamide) fabrics are printed and optionally flame retarded in a two-step process in which the dye diffusion promoting agent N-octyl-2-pyrrolidone optionally with a flame retardant is applied following by printing and print fixation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.