US2996473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing halogenated copolymers of ethylene and an alpha-olefin with an organic polythiocarbonate and a metal containing compound, and product thereof
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-05-29
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Granted: 1961-08-15
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Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 William P Cain
- 👤 Jr Leon S Minckler
- 👤 Henry S Makowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:24
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/38; C08K3/00; C08K3/02; C08K3/08; C08K3/18; C08K3/20; C08K3/22; C08K3/24; C08K5/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A CURED HALOGENATED COPOLYMER HAVING AN OLEFIN CONTENT OF 15 TO 85 MOL PERCENT ETHYLENE AND 85 TO 15 MOL PERCENT OF AN ALPHA OLEFIN CONTAINING FROM 3 TO 8 CARBON ATOMS AND A HALOGEN CONTENT OF FROM 1 TO 30 WT. PERCENT AND CHARACTERIZED IN HAVING BEFORE CURING (A) A CRYSTALLINITY OF LESS THAN 25%, (B) A SOFTENING POINT OF LESS THAN 25* C., (C) A TENSILE STRENGTH OF FROM 50 TO 1000 P.S.I (D) AN APPARENT MODULUS OF ELASTICITY AT -50* C. OF FROM 10,000 TO 400,000 P.S.I., AND (E) AN INTRINSIC VISCOSITY IN TETRALIN AT 125* C. AT A CONCENTRATION OF ONE GRAM PER LITER OF 0.4 TO 3.5, SAID CURING BEING EFFECTED WITH A CURING MIXTURE COMPRISING (A) AN ORGANIC POLYTHIOCARBONATE SELECTED FROM THE GROUP CONSISTING OF (1) A TRITHIOCARBONATE HAVING THE FORMULA
Claim 2
Dependent Claim
137 words
A CURED HALOGENATED COPOLYMER HAVING AN OLEFIN CONTENT OF 15 TO 85 MOL PERCENT ETHYLENE AND 85 TO 15 MOL PERCENT OF AN ALPHA OLEFIN CONTAINING FROM 3 TO 8 CARBON ATOMS AND A HALOGEN CONTENT OF FROM 1 TO 30 WT. PERCENT AND CHARACTERIZED IN HAVING BEFORE CURING (A) A CRYSTALLINITY OF LESS THAN 25%, (B) A SOFTENING POINT OF LESS THAN 25* C., (C) A TENSILE STRENGTH OF FROM 50 TO 1000 P.S.I (D) AN APPARENT MODULUS OF ELASTICITY AT -50* C. OF FROM 10,000 TO 400,000 P.S.I., AND (E) AN INTRINSIC VISCOSITY IN TETRALIN AT 125* C. AT A CONCENTRATION OF ONE GRAM PER LITER OF 0.4 TO 3.5, SAID CURING BEING EFFECTED WITH A CURING MIXTURE COMPRISING (A) AN ORGANIC POLYTHIOCARBONATE SELECTED FROM THE GROUP CONSISTING OF (1) A TRITHIOCARBONATE HAVING THE FORMULA
References Cited (Backward Citations)
US2858292A
Cited
US2850490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |