US3755166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease sealant
Assignee: Witco Corp
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Filing: 1972-06-28
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Granted: 1973-08-28
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Expires: 1992-06-28
Abstract
Abstract A viscous resilient deformable grease composition having a penetration of about 250*-350 at 77*F., which develops a protective skin when exposed to air, comprising a lubricating oil having a viscosity range of 100-250 SSU at 210*F., thickened with an organophylic clay such as dimethyldioctodecyl ammonium montmorillonite, and containing a drying oil such as soya oil and a drier such as cobalt naphthenate. After homogenizing, this composition is an effective sealant, particularly for energy absorbing devices as used in automobile bumpers wherein bleeding of hydraulic fluid and moisture penetration are problems.
Inventors
- 👤 W Abbott
- 👤 G Rathfon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:46
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/086; C10M2201/14; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/16; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/32; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/10; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/04; C10M2219/044; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
20 words
A sealant composition as in claim 1 wherein the drying oil is soya oil and the drier is cobalt naphthenate.
Claim 2
Dependent Claim
16 words
A sealant composition as in claim 1 wherein the clay thickener is dimethyldioctadecyl quaternary ammonium bentonite.
Claim 3
Dependent Claim
31 words
A sealant composition as in claim 1 to which a a minor dispersing amount of a dispersing agent selected from the group consisting of methanol, acetone, and propylene carbonate is added.
Claim 4
Dependent Claim
13 words
A sealant composition as in claim 4 in which the dispersant is methanol.
Claim 5
Dependent Claim
27 words
A sealant composition as in claim 1 in which the lubricating oil is a bright stock lubricating oil having a viscosity of about 150 SUS at 210*F.
Claim 6
Dependent Claim
47 words
A sealant composition as in claim 4 comprising about 50 parts by weight of a mineral lubricating oil, about 20-30 parts of a drying oil, a minor drying amount of a drier, about 25 parts of the clay thickener, and a minor dispersing amount of a dispersant.
Claim 7
Dependent Claim
73 words
A sealant composition as in claim 4 comprising a mixture of about 52 parts by weight of a bright stock lubricating oil, about 25 parts by weight of degummed soya oil, about 2 parts by weight of a cobalt naphthenate solution containing 6 percent cobalt, about 20 parts by weight of the clay thickener, and about 6 parts by weight of methyl alcohol, said sealant having a penetrating range of 300-325 at 77*F.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |