Patent US3850682A successfully refreshed from Google Patents.
US3850682A
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US
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Esters of polyoxyalkylene glycols and mixed dibasic acids as fiber finishes
Assignee: Henkel Corp
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Filing: 1972-06-07
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Granted: 1974-11-26
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Expires: 1992-06-07
Abstract
Abstract Ester lubricant compositions are provided which provide a good balance of lubricity and emulsifiability. The esters are derived from polyoxyalkylene glycols with a dibasic acid mixture consisting of dimer acids and short-chain dibasic acids. The emulsions and clear, homogeneous lubricant solutions provide excellent spin finishes for fibers such as polyamides and polyesters.
Inventors
- 👤 R Sturwold
- 👤 F Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/51; C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/199; C08G63/66; C08G63/668; C08G63/672; C10; C10M; C10M3/00; D06M7/00; C10M2201/00; C10M2201/02; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/107; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/46; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/31504; Y10T428/31725; Y10T428/31736; Y10T428/31739; Y10T428/31786
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
A LUBRICATED FIBER COMPRISING A POLYESTER HAVING DEPOSITED THEREON ABOUT 0.1 TO 10% BY WEIGHT OF AN ESTER OBTAINED BY THE REACTION OF 1.5 TO 2.1 MOLS POLYOXYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT FROM ABOUT 300 TO ABOUT 4000 AND RECURRING ALKYLENE GROUPS CONTAINING FROM 2 TO 4 CARBON ATOMS WITH ONE MOL OF A MIXTURE OF DIBASIC ACIDS CONSISTING OF 5 TO 95 MOL PERCENT SHORT-CHAIN DIBASIC HYDROCARBON ACIDS CONTAINING 2 TO 12 CARBON ATOMS, SAID ESTER HAVING 70% OR MORE OF THE CARBOXYL GROUPS REACTED.
Claim 2
Dependent Claim
87 words
A LUBRICATED FIBER COMPRISING A POLYESTER HAVING DEPOSITED THEREON ABOUT 0.1 TO 10% BY WEIGHT OF AN ESTER OBTAINED BY THE REACTION OF 1.5 TO 2.1 MOLS POLYOXYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT FROM ABOUT 300 TO ABOUT 4000 AND RECURRING ALKYLENE GROUPS CONTAINING FROM 2 TO 4 CARBON ATOMS WITH ONE MOL OF A MIXTURE OF DIBASIC ACIDS CONSISTING OF 5 TO 95 MOL PERCENT SHORT-CHAIN DIBASIC HYDROCARBON ACIDS CONTAINING 2 TO 12 CARBON ATOMS, SAID ESTER HAVING 70% OR MORE OF THE CARBOXYL GROUPS REACTED.
Claim 3
Dependent Claim
42 words
The lubricated fiber of claim 1 wherein the polyoxyalkylene glycol is a polyethylene glycol of molecular weight 400 to 1000 and the dibasic acid mixture contains from 20 to 90 mol percent short-chain dibasic hydrocarbon acid containing 6 to 10 carbon atoms.
Claim 4
Dependent Claim
32 words
The lubricated fiber of claim 2 wherein the mol ratio of dibasic acids to polyoxyethylene glycol is 1:1.75-2.0 and greater than 85% of the carboxyl groups of the dibasic acids are reacted.
Claim 5
Dependent Claim
35 words
The lubricated fiber of claim 3 wherein the acid value of the ester is 15 or below and the short-chain dibasic hydrocarbon acid comprises from about 7.5 to 20 weight percent of the ester composition.
Claim 6
Dependent Claim
24 words
The lubricated fiber of claim 4 wherein the short-chain dibasic hydrocarbon acid is azelaic acid and the polyester is poly(ethylene terephthalate) or poly(1,4-cyclohexylenedimethylene terephthalate).
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |