Patent US3790342A successfully refreshed from Google Patents.
US3790342A
Expired / Lapsed
US
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Process of producing a dyed cleaned material
Assignee: J&P Coats Ltd
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Filing: 1972-01-28
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Granted: 1974-02-05
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Expires: 1992-01-28
Abstract
Abstract A process of producing a dyed cleaned material comprising first applying to virgin material a dyeing medium, next drying the material and then treating the material with a cleaning substance containing acetone. The acetone may be diluted with water in a proportion up to 50 percent water. The dyeing medium may be a non-aqueous solvent dyeing medium. The non-aqueous dyeing medium may be combined with a material for which the solvent has an affinity higher than it has for the dye, e.g., a silicone.
Inventors
- 👤 R Love
- 👤 A Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:25
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06B; D06B9/00; D06B9/02; D06B9/04; D06P1/0004; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65112; D06P1/928; D06P5/00; D06P5/02; D06P5/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
15 words
A process as claimed in claim 1 in which the diluent is a neutral diluent.
Claim 2
Dependent Claim
14 words
A process as claimed in claim 2 in which the neutral diluent is water.
Claim 3
Dependent Claim
28 words
A process as claimed in claim 1 in which the material is treated with the cleaning substance at a temperature lying within the range 40* - 50* C.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 1 including the additional step of drying the material after treatment with the cleaning substance.
Claim 5
Dependent Claim
32 words
A process as claimed in claim 5 in which the step of drying the material consists in subjecting the material to a sub-atmospheric pressure below the vapour pressure of the cleaning substance.
Claim 6
Dependent Claim
29 words
A process as claimed in claim 1 in which the dyeing medium is an aqueous dyeing medium, i.e., a dyeing medium containing a dyestuff dispersed or dissolved in water.
Claim 7
Dependent Claim
31 words
A process as claimed in claim 1 in which the dyeing medium is a solvent dyeing medium, i.e., a dyeing medium containing a dyestuff dispersed or dissolved in a non-aqueous solvent.
Claim 8
Dependent Claim
38 words
A process as claimed in claim 8 in which the solvent dyeing medium is a dye, a solvent of the dye and a material for which the solvent has a higher affinity than it has for the dye.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |