US3979356A
Expired / Lapsed
US
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Polymeric composition and insulated products
Assignee: Vulkor Inc
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Filing: 1975-05-21
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Granted: 1976-09-07
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Expires: 1995-05-21
Abstract
Abstract Cured polymeric compositions having increased resistance to flow and dripping at flame temperatures, comprising copolymers of ethylene-vinyl acetate, hydrated alumina, and silicone elastomer; and electrical conductors insulated therewith.
Inventors
- 👤 Robert B. Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/14; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0853; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; H01B7/00; H01B7/17; H01B7/29; H01B7/292; C08L2312/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
91 words
A polymeric composition resistant to flow and dripping at flame temperatures, comprising the cross-link cured product of the following ingredients, in relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 70 to 95 parts by weight of ethylene and about 30 to 5 parts by weight of vinyl acetate; about 25 to 150 parts of hydrated alumina; about 2 to 25 parts of silicone elastomer having a viscosity in excess of about 1 million centipoise; and about 2 to 10 parts of an organo tertiary peroxide curing agent.
Claim 2
Dependent Claim
91 words
A polymeric composition resistant to flow and dripping at flame temperatures, comprising the cross-link cured product of the following ingredients, in relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 70 to 95 parts by weight of ethylene and about 30 to 5 parts by weight of vinyl acetate; about 25 to 150 parts of hydrated alumina; about 2 to 25 parts of silicone elastomer having a viscosity in excess of about 1 million centipoise; and about 2 to 10 parts of an organo tertiary peroxide curing agent.
Claim 3
Dependent Claim
30 words
The cured polymeric composition of claim 1, wherein the copolymer of ethylene-vinyl acetate comprises about 80 parts by weight of ethylene and about 20 parts by weight of vinyl acetate.
Claim 4
Dependent Claim
21 words
The cured polymeric composition of claim 2, wherein the silicone elastomer has a viscosity in excess of about 8 million centipoise.
Claim 5
Dependent Claim
13 words
The cured polymeric composition of claim 3, wherein the silicone elastomer is dimethylpolysiloxane.
Claim 6
Dependent Claim
14 words
The cured polymeric composition of claim 3, wherein the silicone elastomer is methyl-phenyl polysiloxane.
Claim 7
Dependent Claim
18 words
The cured polymeric composition of claim 2, comprising about 0.5 to 3.0 parts by weight of vinyl silane.
Claim 8
Dependent Claim
90 words
A polymeric composition resistant to flow and dripping at flame temperatures, comprising the cross-link cured product of the following ingredients, in relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 70 to 95 parts by weight of ethylene and about 30 to 5 parts by weight of vinyl acetate; about 50 to 150 parts of hydrated alumina, about 5 to 20 parts of silicone elastomer having a viscosity of at least one million centipoise, and about 3 to 8 parts of an organo tertiary peroxide curing agent.
Claim 9
Dependent Claim
90 words
A polymeric composition resistant to flow and dripping at flame temperatures, comprising the cross-link cured product of the following ingredients, in relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 70 to 95 parts by weight of ethylene and about 30 to 5 parts by weight of vinyl acetate; about 50 to 150 parts of hydrated alumina, about 5 to 20 parts of silicone elastomer having a viscosity of at least one million centipoise, and about 3 to 8 parts of an organo tertiary peroxide curing agent.
Claim 10
Dependent Claim
19 words
The cured polymeric composition of claim 7, wherein the silicone elastomer is a dimethylpolysiloxane having the chemical structure: ##EQU2##
Claim 11
Dependent Claim
14 words
The cured polymeric composition of claim 7, wherein the silicone elastomer is methyl-phenyl polysiloxane.
Claim 12
Dependent Claim
82 words
A polymeric composition resistant to flow and dripping at flame temperatures, comprising the cross-link cured product of the following ingredients, in approximate relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 82 parts by weight of ethylene and about 18 parts by weight of vinyl acetate; about 100 parts of hydrated alumina; about 6 parts of dimethylpolysiloxane silicone elastomer having a viscosity of at least about 1 million centipoise; and about 4.5 parts of organo tertiary peroxide curing agent.
Claim 13
Dependent Claim
82 words
A polymeric composition resistant to flow and dripping at flame temperatures, comprising the cross-link cured product of the following ingredients, in approximate relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 82 parts by weight of ethylene and about 18 parts by weight of vinyl acetate; about 100 parts of hydrated alumina; about 6 parts of dimethylpolysiloxane silicone elastomer having a viscosity of at least about 1 million centipoise; and about 4.5 parts of organo tertiary peroxide curing agent.
Claim 14
Dependent Claim
93 words
A polymeric composition curable to a thermoset state wherein it is resistant to flow and dripping at flame temperatures comprising, in relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 70 to about 95 parts by weight of ethylene and about 30 to about 5 parts by weight of vinyl acetate; about 25 to 150 parts of hydrated alumina; about 2 to 25 parts of silicone elastomer having a viscosity in excess of about 8 million centipoise; and about 2 to 10 parts of an organo tertiary peroxide curing agent.
Claim 15
Dependent Claim
93 words
A polymeric composition curable to a thermoset state wherein it is resistant to flow and dripping at flame temperatures comprising, in relative parts by weight: 100 parts of ethylene-vinyl acetate copolymer comprising about 70 to about 95 parts by weight of ethylene and about 30 to about 5 parts by weight of vinyl acetate; about 25 to 150 parts of hydrated alumina; about 2 to 25 parts of silicone elastomer having a viscosity in excess of about 8 million centipoise; and about 2 to 10 parts of an organo tertiary peroxide curing agent.
Claim 16
Dependent Claim
29 words
The curable polymeric composition of claim 11, wherein copolymer of ethylene-vinyl acetate comprises about 80 parts by weight of ethylene and about 20 parts by weight of vinyl acetate.
Claim 17
Dependent Claim
24 words
The curable polymeric composition of claim 12, wherein the silicone elastomer is present in amount of about 5 to about 20 parts by weight.
Claim 18
Dependent Claim
13 words
The curable polymeric composition of claim 13, wherein the silicone elastomer is dimethylpolysiloxane.
Claim 19
Dependent Claim
14 words
The curable polymeric composition of claim 13, wherein the silicone elastomer is methyl-phenyl polysiloxane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |