US4086949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filaments coated with a fatigue reducing finish comprising a poly(vinyl alkyl ether) used as reinforcements in rubber articles
Assignee: EIDP Inc
•
Filing: 1977-02-25
•
Granted: 1978-05-02
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Expires: 1997-02-25
Abstract
Abstract A lubricating finish composition for filaments, yarns and cords used as reinforcement in rubber articles is comprised of a lubricant oil, a solid lubricant, poly(vinyl alkyl ether) and an emulsifier. A desirable combination of good adhesion and fatigue resistance is provided in reinforced rubber articles.
Inventors
- 👤 William Cheng Uy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:18
CPC Classifications
D; D06; D06M; D06M7/00; D06M2200/00; D06M2200/40; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
75 words
A synthetic filament coated with 0.4 to 2% by weight of a lubricating finish composition comprising (1) 60-96% by weight of a lubricant oil, (2) 1-6% by weight of a solid lubricant selected from the group consisting of metallic soaps, graphite, boron nitride, fumed silica, polyalkylene waxes and microcrystalline waxes, (3) 1-15% by weight of a poly(vinyl alkyl ether) having 1-4 carbon atoms in the alkyl group and (4) 0-30% by weight of an emulsifier.
Claim 2
Dependent Claim
75 words
A synthetic filament coated with 0.4 to 2% by weight of a lubricating finish composition comprising (1) 60-96% by weight of a lubricant oil, (2) 1-6% by weight of a solid lubricant selected from the group consisting of metallic soaps, graphite, boron nitride, fumed silica, polyalkylene waxes and microcrystalline waxes, (3) 1-15% by weight of a poly(vinyl alkyl ether) having 1-4 carbon atoms in the alkyl group and (4) 0-30% by weight of an emulsifier.
Claim 3
Dependent Claim
13 words
The filament of claim 1 wherein the filament is composed of poly(p-phenylene terephthalamide).
Claim 4
Dependent Claim
11 words
The filament of claim 1 wherein the filament is poly(hexamethylene adipamide).
Claim 5
Dependent Claim
11 words
The filament of claim 1 wherein the filament is poly(ethylene terephthalate).
Claim 6
Dependent Claim
40 words
The filament of claim 1 wherein the lubricant oil is selected from the group consisting of liquid phthalic acid esters of 8-14 carbon alkanols and pentaerythritol completely esterified with fatty acids or mixtures of fatty acids having 8-10 carbon atoms.
Claim 7
Dependent Claim
21 words
The filament of claim 5 wherein the lubricant oil is selected from the group consisting of diundecyl phthalate and pentaerythritol tetrapelargonate.
Claim 8
Dependent Claim
20 words
The filament of claim 5 wherein the solid lubricant is selected from the group consisting of polyalkylene and microcrystalline waxes.
Claim 9
Dependent Claim
16 words
The filament of claim 5 wherein the finish composition contains 2-30% by weight of an emulsifier.
Claim 10
Dependent Claim
22 words
The filament of claim 5 wherein the poly(vinyl alkyl ether) is poly(vinyl methyl ether) having a weight average molecular weight of 10,000-70,000.
Claim 11
Dependent Claim
26 words
The filament of claim 9 wherein the finish composition contains 4-10% by weight of poly(vinyl methyl ether) having a weight average molecular weight of about 18,000.
Claim 12
Dependent Claim
26 words
The filament of claim 9 wherein the finish composition contains 2-6% by weight of poly(vinyl methyl ether) having a weight average molecular weight of about 62,000.
Claim 13
Dependent Claim
13 words
The filament of claim 5 wherein the solid lubricant is a metallic soap.
Claim 14
Dependent Claim
12 words
The filament of claim 12 wherein the metallic soap is magnesium stearate.
Claim 15
Dependent Claim
12 words
The filament of claim 12 wherein the metallic soap is lithium stearate.
Claim 16
Dependent Claim
82 words
A synthetic filament coated with 0.4 to 2% by weight of a lubricating finish composition comprising (1) 60-96% by weight of a lubricant oil selected from the group consisting of diundecyl phthalate and pentaerythritol tetrapelargonate, (2) 1-6% by weight of a solid lubricant selected from the group consisting of magnesium stearate, lithium stearate, polyalkylene waxes and microcrystalline waxes, (3) 1-15% by weight of poly(vinyl methyl ether) having a weight average molecular weight of 10,000-70,000 and (4) 2-30% by weight of an emulsifier.
Claim 17
Dependent Claim
82 words
A synthetic filament coated with 0.4 to 2% by weight of a lubricating finish composition comprising (1) 60-96% by weight of a lubricant oil selected from the group consisting of diundecyl phthalate and pentaerythritol tetrapelargonate, (2) 1-6% by weight of a solid lubricant selected from the group consisting of magnesium stearate, lithium stearate, polyalkylene waxes and microcrystalline waxes, (3) 1-15% by weight of poly(vinyl methyl ether) having a weight average molecular weight of 10,000-70,000 and (4) 2-30% by weight of an emulsifier.
Claim 18
Dependent Claim
13 words
The filament of claim 15 wherein the finish composition also contains an antioxidant.
Claim 19
Dependent Claim
13 words
The filament of claim 15 wherein the filament is composed of poly(p-phenylene terephthalamide).
Claim 20
Dependent Claim
9 words
Tire cord comprised of the filaments of claim 17.
Claim 21
Dependent Claim
10 words
A tire reinforced with the tire cord of claim 18.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |