US4022729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt protective wax coating
Assignee: Citgo Petroleum Corp
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Filing: 1975-03-27
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Granted: 1977-05-10
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Expires: 1995-03-27
Abstract
Abstract A composition comprising a hydrocarbon wax having about 10-40% by weight of oil, an ethylene/propylene/non-conjugated polyene terpolymer having a combined ethylene content of about 30-85% by weight and an iodine number of about 5-15, and said terpolymer constitutes from about 6% by weight to about 30% by weight of said composition.
Inventors
- 👤 William A. Prickril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:22
CPC Classifications
C; C08; C08L; C08L91/00; C08L91/06; C08K; C08K5/00; C08K5/16; C08K5/20; C08L23/00; C08L23/02; C08L23/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
A composition comprising a hydrocarbon wax having about 10-40% by weight of oil, an ethylene/propylene/non-conjugated polyene terpolymer having a combined ethylene content of about 30- 85% by weight and an iodine number of about 5-15, and said terpolymer constitutes from about 6% by weight to about 30% by weight of said composition, said composition additionally including an N-alkyl-γ-hydroxybutyramides release agent, said composition comprising from between about 0.1% to about 0.8% by weight of said agent.
Claim 2
Dependent Claim
75 words
A composition comprising a hydrocarbon wax having about 10-40% by weight of oil, an ethylene/propylene/non-conjugated polyene terpolymer having a combined ethylene content of about 30- 85% by weight and an iodine number of about 5-15, and said terpolymer constitutes from about 6% by weight to about 30% by weight of said composition, said composition additionally including an N-alkyl-γ-hydroxybutyramides release agent, said composition comprising from between about 0.1% to about 0.8% by weight of said agent.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein the hydrocarbon wax is a paraffin wax.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the hydrocarbon wax is a microcrystalline wax.
Claim 5
Dependent Claim
23 words
The composition of claim 1 wherein the hydrocarbon wax is a blend of a refined hydrocarbon wax and an unrefined, oil-containing hydrocarbon wax.
Claim 6
Dependent Claim
16 words
The composition of claim 1 wherein the hydrocarbon wax contains about 15-35% by weight of oil.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein the terpolymer has a specific gravity of about 0.84-0.89.
Claim 8
Dependent Claim
15 words
The composition of claim 6 wherein the terpolymer has a specific gravity of about 0.85-0.87.
Claim 9
Dependent Claim
17 words
The composition of claim 1 wherein the terpolymer constitutes about 8-25% of the weight of the composition.
Claim 10
Dependent Claim
17 words
The composition of claim 8 wherein the terpolymer constitutes about 20% of the weight of the composition.
Claim 11
Dependent Claim
25 words
The composition of claim 1 wherein the terpolymer has a combined ethylene content of about 40-75% by weight and an iodine number of about 8-10.
References Cited (Backward Citations)
US3857805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |