US3993571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spin finish for yarn used in food packaging
Assignee: Honeywell International Inc
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Filing: 1975-04-11
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Granted: 1976-11-23
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Expires: 1995-04-11
Abstract
Abstract This invention relates to a yarn finishing composition and more specifically to a spin finish for multifilament yarns used in food packaging. The preferred finishing composition comprises butyl stearate, sorbitan monooleate and polyoxyethylene (20) sorbitan monooleate.
Inventors
- 👤 Robert Moore Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:03
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
78 words
A spin finish composition for treating synthetic filamentary yarn used in food packaging consisting essentially of about 47 to 53 weight percent of said composition of a compound selected from the group consisting of butyl stearate and coconut oil; about 16 to 20 weight percent of said composition of sorbitan monooleate; and about 30 to 34 weight percent of said composition of ethoxylated sorbitan monooleate, said ethoxylated sorbitan monooleate being ethoxylated with about 20 moles of ethylene oxide.
Claim 2
Dependent Claim
78 words
A spin finish composition for treating synthetic filamentary yarn used in food packaging consisting essentially of about 47 to 53 weight percent of said composition of a compound selected from the group consisting of butyl stearate and coconut oil; about 16 to 20 weight percent of said composition of sorbitan monooleate; and about 30 to 34 weight percent of said composition of ethoxylated sorbitan monooleate, said ethoxylated sorbitan monooleate being ethoxylated with about 20 moles of ethylene oxide.
Claim 3
Dependent Claim
24 words
The spin finish composition of claim 1 wherein the compound selected from the group consisting of butyl stearate and coconut oil is butyl stearate.
Claim 4
Dependent Claim
24 words
The spin finish composition of claim 1 wherein the compound selected from the group consisting of butyl stearate and coconut oil is coconut oil.
Claim 5
Dependent Claim
11 words
The spin finish composition of claim 1 as an aqueous emulsion.
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) | 1979-11-23 | 1980-05-24 | 1980-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-23 | 1984-05-24 | 1984-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-23 | 1988-05-24 | 1988-11-23 | $7700.00 | Window Closed / Lapsed |