US3853607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic filaments coated with a lubricating finish
Assignee: EIDP Inc
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Filing: 1973-10-18
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Granted: 1974-12-10
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Expires: 1993-10-18
Abstract
Abstract A lubricating finish composition for filaments, yarns and cords used as reinforcement in rubber articles is composed of a polyorganosiloxane oil and a microcrystalline or polyalkylene wax dispersed in a dialkyl phthalate oil having 8 to 14 carbon atoms in each of the alkyl groups. A desirable combination of good adhesion and fatigue resistance is provided in reinforced rubber tires.
Inventors
- 👤 Y Iyengar
- 👤 J Lemley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:31
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2962; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31786; Y10T428/31801
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
A SYNTHETIC FILAMENT COATED WITH A LUBRICATING FINISH COMPOSITION CONSISTING ESSENTIALLY OF A LINEAR POLYDIMETHYLSILOXANE OIL AND MICROCRYSTALLINE OR POLYALKYLENE WAX DISPERSED IN DIALKYL PHTHALATE OIL CARRIER HAVING FROM 8 TO 14 CARBON ATOMS IN EACH OF SAID ALKYL GROUPS, THE PROPORTIONS OF THE SPECIFIED INGREDIENTS BEING FROM 0.1 TO 25 WEIGHT PERCENT OF THE POLYDIMETHYLSILOXANE OIL, FROM 0.1 TO 10 WEIGHT PERCENT OF THE WAX AND AT LEAST 65 WEIGHT PERCENT OF THE DIALKYL PHTHALATE OIL CARRIER.
Claim 2
Dependent Claim
78 words
A SYNTHETIC FILAMENT COATED WITH A LUBRICATING FINISH COMPOSITION CONSISTING ESSENTIALLY OF A LINEAR POLYDIMETHYLSILOXANE OIL AND MICROCRYSTALLINE OR POLYALKYLENE WAX DISPERSED IN DIALKYL PHTHALATE OIL CARRIER HAVING FROM 8 TO 14 CARBON ATOMS IN EACH OF SAID ALKYL GROUPS, THE PROPORTIONS OF THE SPECIFIED INGREDIENTS BEING FROM 0.1 TO 25 WEIGHT PERCENT OF THE POLYDIMETHYLSILOXANE OIL, FROM 0.1 TO 10 WEIGHT PERCENT OF THE WAX AND AT LEAST 65 WEIGHT PERCENT OF THE DIALKYL PHTHALATE OIL CARRIER.
Claim 3
Dependent Claim
22 words
The coated filament defined in claim 1 wherein the finish composition contains from 0.1 to 3 weight percent of an organic antioxidant.
Claim 4
Dependent Claim
18 words
The coated filament defined in claim 1 wherein the dialkyl phthalate oil carrier consists essentially of diundecyl phthalate.
Claim 5
Dependent Claim
37 words
The coated filament defined in claim 1 wherein the wax is a polyethylene wax having a melting point between 80*C. and 200*C., a penetration number between 1 and 10, and a saponification number between 9 and 100.
Claim 6
Dependent Claim
44 words
The coated filament defined in claim 1 wherein the wax is a microcrystalline wax having a melting point between 80*C. and 150*C., a penetration number between 1 and 10, an acid number between 10 and 50, and a saponification number between 30 and 100.
Claim 7
Dependent Claim
41 words
The coated filament defined in claim 1 wherein the polydimethylsiloxane oil is a polydimethylsiloxane having at 25*C. a viscosity of 100 cenTistokes, a specific gravity of 0.968, a refractive index of 1.4030, and a surface tension of 20.9 dynes per centimeter.
Claim 8
Dependent Claim
27 words
The coated filament defined in claim 1 wherein there is from 0.1 to 5 weight percent of the finish composition, based on the weight of the filament.
Claim 9
Dependent Claim
16 words
The coated filament defined in claim 1 wherein the synthetic filament consists essentially of polyethylene terephthalate.
Claim 10
Dependent Claim
12 words
An industrial yarn composed of the coated filaments defined in claim 1.
Claim 11
Dependent Claim
12 words
A high-tenacity tire-cord composed of the coated filaments defined in claim 1.
References Cited (Backward Citations)
US3155537A
Cited
US3113369A
Cited
US3103448A
Cited
US3423235A
Cited
US3475204A
Cited
GB1269962A
Cited
US3795538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |