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US4857232A Expired / Lapsed US ⏱️ 0.0 years remaining

Cable conductor shield

Assignee: Union Carbide Corp
•
Filing: 1988-03-23
•
Granted: 1989-08-15
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Expires: 2008-03-23
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Abstract

Abstract A cable conductor shield composition comprising (i) ethylene-vinyl acetate copolymer wherein the vinyl acetate is present in an amount of about 8 to about 14 parts by weight and (ii) the following components in about the following parts by weight, all based on 100 parts by weight of copolymer: ______________________________________ Components Parts by Weight ______________________________________ polyethylene having a density 29 to 36 of about 0.90 to about 0.95 carbon black having a surface 19 to 25 area of about 650 to about 1200 square meters per gram an antioxidant at least 0.1 a processing aid at least 0.1 an organic peroxide curing agent at least 0.5 ______________________________________

Inventors

  • 👤 Norman M. Burns, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:30
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/292; Y10T428/2927

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 93 words
An extruded crosslinked cable conductor shield consisting essentially of (i) 100 parts by weight of ethylene-vinyl acetate copolymer wherein the vinyl acetate is present in an amount of about 8 to about 14 parts by weight; (ii) polyethylene having a density of about 0.90 to about 0.95 gram per cubic centimeter in an amount of about 29 to about 36 parts by weight; and (iii) carbon black having a surface area of about 650 to about 1200 square meters per gram in an amount of about 19 to about 25 parts by weight
Claim 2
Dependent Claim 93 words
An extruded crosslinked cable conductor shield consisting essentially of (i) 100 parts by weight of ethylene-vinyl acetate copolymer wherein the vinyl acetate is present in an amount of about 8 to about 14 parts by weight; (ii) polyethylene having a density of about 0.90 to about 0.95 gram per cubic centimeter in an amount of about 29 to about 36 parts by weight; and (iii) carbon black having a surface area of about 650 to about 1200 square meters per gram in an amount of about 19 to about 25 parts by weight
Claim 3
Dependent Claim 104 words
The cable conductor shield defined in claim 1 wherein: (i) the vinyl acetate is present in the copolymer in an amount of the vinyl acetate is present in the copolymer in an amount of about 10 to about 12 parts by weight; (ii) the polyethylene has a density of about 0.920 to about 0.935 gram per cubic centimeter and is present in an amount of about 32 to about 34 parts by weight; and (iii) the carbon black has a surface area of about 750 to about 850 square meters per gram in an amount of about 21 to about 24 parts by weight.

References Cited (Backward Citations)

US4246142A Cited
US4246142B1 Cited
US4421678A Cited
US4493787A Cited
US4696765A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-08-14 1993-02-13 1993-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-08-14 1997-02-13 1997-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-08-14 2001-02-13 2001-08-15 $7700.00 Window Closed / Lapsed

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