US4259078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-stable quaternary ammonium compounds for fiber lubricating
Assignee: Hoechst AG
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Filing: 1979-06-05
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Granted: 1981-03-31
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Expires: 1999-06-05
Abstract
Abstract For fiber dressing an antistatic, heat-stable fiber lubricating agent, which contains a compound of the formula ##STR1## in which R 1 denotes a C 8 -C 22 alkyl or alkenyl group, R 2 denotes a C 8 -C 22 alkyl or alkenyl group or a C 1 -C 4 alkyl group and R 3 , R 4 and R 5 denote identical or different C 1 -C 4 alkyl groups is used.
Inventors
- 👤 Rolf Kleber
- 👤 Heinz Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:35
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/11; D06M13/244; D06M13/282; D06M13/292
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A process for fiber lubricating during their manufacture wherein a compound of the formula ##STR7## in which R 1 is C 8 -C 22 alkyl or alkenyl, R 2 is C 8 -C 22 alkyl or alkenyl or C 1 -C 4 alkyl and R 3 , R 4 and R 5 are identical or different C 1 -C 4 alkyl is applied to the fibers.
Claim 2
Dependent Claim
66 words
A process for fiber lubricating during their manufacture wherein a compound of the formula ##STR7## in which R 1 is C 8 -C 22 alkyl or alkenyl, R 2 is C 8 -C 22 alkyl or alkenyl or C 1 -C 4 alkyl and R 3 , R 4 and R 5 are identical or different C 1 -C 4 alkyl is applied to the fibers.
References Cited (Backward Citations)
US2563506A
Cited
US3954633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |