Patent US3849331A successfully refreshed from Google Patents.
US3849331A
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4-naphthalimido cycloammonium-acrylic fiber compositions
Assignee: ICI FRANCOLORS SA
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Filing: 1971-12-01
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Granted: 1974-11-19
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Expires: 1991-12-01
Abstract
Abstract Acrylic fibre-bleaching cation composition of matter in which the cation has the formula: IN WHICH R is an alkyl radical or a hydroxy or alkoxy substituted alkyl radical, said alkyl having one to four carbon atoms, X is a direct linkage or p-phenylene, B is an N - (lower alkyl) cycloammonium group attached to X through a carbon atom, the remaining carbon atoms in B being unsubstituted or substituted by chlorine, lower alkyl, phenyl or methylthio group.
Inventors
- 👤 G Minagasson
- 👤 A Domergue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:13
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/04; C07D221/00; C07D221/02; C07D221/04; C07D221/06; C07D221/14; C07D403/00; C07D403/02; C07D403/04; D; D06; D06L; D06L4/00; D06L4/60
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
32 words
A COMPOSITION OF MATTER CONSISTING OF CATIONS AND AN ACRYLIC FIBER HAVING NEGATIVE POSITIONS, SAID CATIONS BEING ATTACHED AT THE NEGATIVE POSITIONS OF SAID FIBER, IN WHICH THE CATIONS HAVE THE FORMULA:
Claim 2
Dependent Claim
32 words
A COMPOSITION OF MATTER CONSISTING OF CATIONS AND AN ACRYLIC FIBER HAVING NEGATIVE POSITIONS, SAID CATIONS BEING ATTACHED AT THE NEGATIVE POSITIONS OF SAID FIBER, IN WHICH THE CATIONS HAVE THE FORMULA:
Claim 3
Dependent Claim
13 words
composition of matter as claimed in claim 1 in which B is benzimidazolium.
Claim 4
Dependent Claim
13 words
composition of matter as claimed in claim 1 in which B is pyrazolium.
Claim 5
Dependent Claim
13 words
Composition of matter as claimed in claim 1 in which B is triazolium.
Claim 6
Dependent Claim
13 words
Composition of matter as claimed in claim 1 in which B is thiazolium.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |