US3241906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing process
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1961-12-26
•
Granted: 1966-03-22
•
Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Smith Norman Brian
- 👤 Richards George
- 👤 Scott Neville Durrant
- 👤 Parkey William Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:14
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/221; D01; D01F; D01F11/00; D01F11/04; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/924; D06P1/928; D06P7/00; D06P7/005; B; B65; B65H; B65H2404/00; B65H2404/10; B65H2404/11; B65H2404/112; B65H2404/1122; B65H2404/13; B65H2404/131; B65H2404/1311; B65H2404/1313; B65H2404/1314; B65H2404/132; B65H2404/1321; B65H2404/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A RAPID CONTINUOUS INTGEGRATED PROCESS FOR COLORING FILAMENTS MELT SPUN FROM SYNTHETIC LINEAR POLYMERS SELECTED FROM THE GROUP CONSISTING OF LINEAR POLYESTERS, COPOLYESTERS OF THE POLYETHYLENE SEBACATE/TEREPHTHALATE TYPE, POLYAMIDES AND POLYOLEFINS CONSISTING ESSENTIALLY OF APPLYING A DYE DISSOLVED IN AT LEAST ONE HOT SUBSTANTIALLY NON-AQUEOUS SOLVENT TO UNDRAWN FILAMENTS HAVING A BRIEFRINGENCE OF LESS THAN 10X10-3 MELT SPUN FROM SYNTHETIC LINEAR POLYMERS UNDER CONDITINS SUCH THAT AFTER IMMERSION TIMES OF UP TO 30 SECONDS PENETRATION OF DYE INTO THE FILAMENTS IS AT LEAST 60%, DRAWING THE FILAMENTS AT LEAST THREE TIMES THEIR LENGTH AND HEATING THE FILAMENTS, SAID DYE CONSISTING ESSENTIALLY OF FINELY DIVIDED ACETATE DYE AND SAID SOLVENT BEING SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, POLYETHYLENE GLYCOLS HAVING AN AVERAGE MOLECULAR WEIGHT OF 200-6000, THEIR ESTERS AND ETHERS, DIMETHYL SEBACATE, DIETHYL SEBACATE,OLEIC ACID, MESITYLENE, TRIPHENYL PHOSPHITE, GYCEROL AND MIXTURES THEREOF WHICH ARE SOLUBLE AND COMPATIBLE WITH EACH OTHER AND WHICH ARE LIQUID UNDER THE TREATING CONDITION.
Claim 2
Dependent Claim
161 words
A RAPID CONTINUOUS INTGEGRATED PROCESS FOR COLORING FILAMENTS MELT SPUN FROM SYNTHETIC LINEAR POLYMERS SELECTED FROM THE GROUP CONSISTING OF LINEAR POLYESTERS, COPOLYESTERS OF THE POLYETHYLENE SEBACATE/TEREPHTHALATE TYPE, POLYAMIDES AND POLYOLEFINS CONSISTING ESSENTIALLY OF APPLYING A DYE DISSOLVED IN AT LEAST ONE HOT SUBSTANTIALLY NON-AQUEOUS SOLVENT TO UNDRAWN FILAMENTS HAVING A BRIEFRINGENCE OF LESS THAN 10X10-3 MELT SPUN FROM SYNTHETIC LINEAR POLYMERS UNDER CONDITINS SUCH THAT AFTER IMMERSION TIMES OF UP TO 30 SECONDS PENETRATION OF DYE INTO THE FILAMENTS IS AT LEAST 60%, DRAWING THE FILAMENTS AT LEAST THREE TIMES THEIR LENGTH AND HEATING THE FILAMENTS, SAID DYE CONSISTING ESSENTIALLY OF FINELY DIVIDED ACETATE DYE AND SAID SOLVENT BEING SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, POLYETHYLENE GLYCOLS HAVING AN AVERAGE MOLECULAR WEIGHT OF 200-6000, THEIR ESTERS AND ETHERS, DIMETHYL SEBACATE, DIETHYL SEBACATE,OLEIC ACID, MESITYLENE, TRIPHENYL PHOSPHITE, GYCEROL AND MIXTURES THEREOF WHICH ARE SOLUBLE AND COMPATIBLE WITH EACH OTHER AND WHICH ARE LIQUID UNDER THE TREATING CONDITION.
References Cited (Backward Citations)
US3073663A
Cited
US2278888A
Cited
US2545075A
Cited
US2577846A
Cited
US2878778A
Cited
US3012842A
Cited
US3069218A
Cited
US3046076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |