US3864431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polyolefins useful as wire insulation in petroleum-jelly filled cables
Assignee: Himont Inc
•
Filing: 1973-10-12
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Granted: 1975-02-04
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Expires: 1993-10-12
Abstract
Abstract Polyolefins useful for insulating wire for use in petroleum jelly-filled cables are stabilized by a combination of additives including a phenolic antioxidant, a polymeric ester of a thiodialkanoic acid and an inhibitor against copper induced degradation.
Inventors
- 👤 Donald E Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:22
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/24; C08K5/25; C08K5/27; C08K5/28; C08L23/04; C08L23/06; C08L23/10; C08L53/00; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C08L2203/00; C08L2203/20; C08L2203/202; C08L2205/00; C08L2205/03; C08L2207/00; C08L2207/06; C08L2207/062; C08L2666/00; C08L2666/02; C08L57/00; C08L61/00; C08L61/04; C08L61/06; C08L67/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
A POLYMER SELECTED FROM THE GROUP CONSISTING OF HIGH DENSITY POLYETHYLENE AND CRYSTALLINE POLYMERS OF PROPYLENE CONTAINING STABILIZING AMOUNTS OF THE FOLLOWING ADDITIVES: A. FROM 0.1 TO 1.5 PARTS PER 100 PARTS OF POLYMER (PHP) OF A RESONOUS CONDENSATION PRODUCT OF A TERPENE AND PHENOL, HAVING A MOLECULAR WEIGHT OF AT LEAST 400, B. FROM 0.1 TO 1.0 PHP OF POLYMERIC ESTER OF A THIODIALKANOIC ACID AND A POLYHYDRIC ALOCHOL, HAVING A MOLECULAR WEIGHT OF AT LEAST 500, AND C. FROM 0.02 TO 0.5 PHP OF OXALIC ACID BIS(BENZYLIDENE HYDRAZIDE) OR ADIPIC ACID BIS(ACETYL HYDRAZIDE).
Claim 2
Dependent Claim
95 words
A POLYMER SELECTED FROM THE GROUP CONSISTING OF HIGH DENSITY POLYETHYLENE AND CRYSTALLINE POLYMERS OF PROPYLENE CONTAINING STABILIZING AMOUNTS OF THE FOLLOWING ADDITIVES: A. FROM 0.1 TO 1.5 PARTS PER 100 PARTS OF POLYMER (PHP) OF A RESONOUS CONDENSATION PRODUCT OF A TERPENE AND PHENOL, HAVING A MOLECULAR WEIGHT OF AT LEAST 400, B. FROM 0.1 TO 1.0 PHP OF POLYMERIC ESTER OF A THIODIALKANOIC ACID AND A POLYHYDRIC ALOCHOL, HAVING A MOLECULAR WEIGHT OF AT LEAST 500, AND C. FROM 0.02 TO 0.5 PHP OF OXALIC ACID BIS(BENZYLIDENE HYDRAZIDE) OR ADIPIC ACID BIS(ACETYL HYDRAZIDE).
Claim 3
Dependent Claim
17 words
The composition of claim 1 in which the polymer is a crystalline copolymer of propylene and ethylene.
Claim 4
Dependent Claim
11 words
The composition of claim 1 in which the polymer is propylene.
Claim 5
Dependent Claim
13 words
The composition of claim 1 in which the polymer is high density polyethylene.
References Cited (Backward Citations)
US3564076A
Cited
US3629189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |