US4430472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric compositions with improved chemical, water and heat resistance
Assignee: Baker Hughes Holdings LLC
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Filing: 1982-12-17
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Granted: 1984-02-07
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Expires: 2002-12-17
Abstract
Abstract An elastomeric composition of the type used as a jacketing material for electrical wires and cables is shown having improved chemical, water and heat resistance. An ethylene/acrylic elastomer comprising a terpolymer of ethylene, methyl acrylate, and a cure site monomer is used as the base polymer and has blended therewith a polybutadiene. The polybutadiene has greater than 50% 1,2 polymerized units and has a molecular weight between about 1,500 and 25,000 grams/mole.
Inventors
- 👤 Raymond L. Guzy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:28
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0853; C08L2203/00; C08L2203/20; C08L2203/202; C08L9/00; Y; Y10; Y10S; Y10S525/00; Y10S525/914
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
In a process of producing a curable elastomeric jacketing composition having improved chemical and heat resistance when cured from an ethylene/acrylic elastomer which is a copolymer of ethylene and methyl acrylate plus a cure site monomer and which has a polymer content of approximately 81% by weight, a specific gravity of 1.12±0.03 and a Mooney Viscosity at 100° of 29±5, the improvement comprising: the step of blending said ethylene/acrylic elastomer with a polybutadiene having greater than 50% 1,2 polymerized units and having a molecular weight between 1,500 and 25,000 grams/mole.
Claim 2
Dependent Claim
90 words
In a process of producing a curable elastomeric jacketing composition having improved chemical and heat resistance when cured from an ethylene/acrylic elastomer which is a copolymer of ethylene and methyl acrylate plus a cure site monomer and which has a polymer content of approximately 81% by weight, a specific gravity of 1.12±0.03 and a Mooney Viscosity at 100° of 29±5, the improvement comprising: the step of blending said ethylene/acrylic elastomer with a polybutadiene having greater than 50% 1,2 polymerized units and having a molecular weight between 1,500 and 25,000 grams/mole.
Claim 3
Dependent Claim
29 words
The process of claim 1, wherein polybutadiene is a normally liquid polybutadiene having greater than 80% 1,2 polymerized units and having a molecular weight between 1,500 and 25,000 grams/mole.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |