D06P 3/702
Dyeing of material in the gel state
Official title: {dyeing of material in the gel state}
D06P3/702 (Dyeing of material in the gel state) appears on 9 US grants and 1 published applications in this corpus.
Search patents in D06P- Granted patents
- 9
- Published applications
- 1
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 27 May 1986
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of producing acrylonitrile-base in-line dyed fibers using rapidly alternating dye solution cross flow27 May 1986US 4,591,361 ASnia Fibre S.p.A.
- Process for dyeing, in the gel state, fiber material composed of wet spun acrylonitrile polymers using dyes with two basic groups7 Jan 1986US 4,563,191 AHoechst Aktiengesellschaft
- Process for continuously dyeing in the gel state fiber material of acrylonitrile polymers spun from organic solvents with carbinol- or anhydro base of basic dye1 May 1984US 4,445,904 AHoechst Aktiengesellschaft
- Method for dyeing acrylonitrile polymer and copolymer fibres12 May 1981US 4,266,940 AYorkshire Chemicals Limited
- Process for the dyeing or printing of polyacrylonitrile material31 Oct 1978US 4,123,222 ACiba-Geigy Corporation
Most cited
By later US patents
- Process for dyeing, in the gel state, fiber material composed of wet spun acrylonitrile polymers using dyes with two basic groups11US 4,563,191 AHoechst Aktiengesellschaft · 1986
- Process for continuously dyeing in the gel state fiber material of acrylonitrile polymers spun from organic solvents with carbinol- or anhydro base of basic dye9US 4,445,904 AHoechst Aktiengesellschaft · 1984
- Process for the dyeing or printing of polyacrylonitrile material7US 4,123,222 ACiba-Geigy Corporation · 1978
- Method for dyeing acrylonitrile polymer and copolymer fibres7US 4,266,940 AYorkshire Chemicals Limited · 1981
- Process for dyeing undrawn acrylonitrile polymer filaments5US 3,932,571 AE. I. Du Pont de Nemours and Company · 1976