EP0145213A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Oil resistant flame retardant compositions
Assignee: STC PLC
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Filing: 1984-10-29
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Granted: —
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Expires: 2004-10-29
Abstract
Abstract A fire retardant, oil resistant polymer composition includes an ethylene methyl acrylate copolymer blended with one or more of ethylene vinyl acetate, ethylene ethyl acrylate, ethylene butyl acrylate or ethylene propylene diene monomor. The composition also contains a cross-linking initiator and a hydrated metal oxide filler. The material may be used as a insulant coating on electrical or fibre optic cables.
Inventors
- 👤 John Robert Ivor Bury
- 👤 Douglas Charles Brett
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:25
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/29; H01B7/295; C; C03; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/106; C08; C08L; C08L31/00; C08L31/02; C08L31/04; C08L33/00; C08L33/04; C08L33/06; C08L33/08; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/4436; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C08L23/00; C08L23/02; C08L23/04; C08L23/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
51 words
An electrical or fibre optic cable having a protective sheath of a fire retardent, oil resistant plastics composition, characterised in that the plastics comprises a cross-linked copolymer blend of ethylene methyl acrylate (EMA) together with ethylene ethyl acrylate (EEA), a thylene butyl acrylate (EBA), ethylene propylene diene monomer or mixtures thereof.
Claim 2
Dependent Claim
51 words
An electrical or fibre optic cable having a protective sheath of a fire retardent, oil resistant plastics composition, characterised in that the plastics comprises a cross-linked copolymer blend of ethylene methyl acrylate (EMA) together with ethylene ethyl acrylate (EEA), a thylene butyl acrylate (EBA), ethylene propylene diene monomer or mixtures thereof.
Claim 3
Dependent Claim
81 words
A flame retardent, oil resistent plastics composition, including an ethylene methyl acrylate copolymer (EMA) blended with ethylene vinyl acetate (EVA), ethylene ethyl acrylate (EEA), ethylene butyl acrylate (EBA), ethylene propylene diene monomer or mixtures thereof, a coupling agent, a cross linking agent and a filler comprising a hydrated metal oxide, characterised in that the EMA copolymer comprises 50 to 95 weight percent of the total plastics blend, and that the filler comprises 80 to 250 weight percent of the plastics blend.
Claim 4
Dependent Claim
81 words
A flame retardent, oil resistent plastics composition, including an ethylene methyl acrylate copolymer (EMA) blended with ethylene vinyl acetate (EVA), ethylene ethyl acrylate (EEA), ethylene butyl acrylate (EBA), ethylene propylene diene monomer or mixtures thereof, a coupling agent, a cross linking agent and a filler comprising a hydrated metal oxide, characterised in that the EMA copolymer comprises 50 to 95 weight percent of the total plastics blend, and that the filler comprises 80 to 250 weight percent of the plastics blend.
Claim 5
Dependent Claim
22 words
A plastics composition as claimed in claim 2 characterised in that the filler comprises alumina trihydrate, hydrated magnesium oxide or mixtures thereof.
Claim 6
Dependent Claim
21 words
A plastics composition as claimed in claim 2 or 3, characterised in that the cross linking agent is a methacrylate initiator.
Claim 7
Dependent Claim
19 words
A plastics composition as claimed in claim 2, 3 or 4, and incorporating a silane or titanate coupling agent.
Claim 8
Dependent Claim
17 words
A plastics composition as claimed in any one of claims 2 to 5 and incorporating a lubricant.
Claim 9
Dependent Claim
18 words
A plastics composition as claimed in claim 6, characterised in that the lubricant is a stearate or oleate.
Claim 10
Dependent Claim
21 words
An electrical or fibre optic cable coated with a plastics composition as claimed in any one of claims 2 to 7.
Claim 11
Independent Claim
67 words
A method of making a flame retardant, oil resistant plastics composition, the method including blending at a temperature below 160°C an ethylene methyl acrylate copolymer (EMA) together with, ethylene vinyl acetate (EVA), ethylene ethyl acrylate (EEA), ethylene butyl acrylate (EBA), ethylene propylene diene monomer or mixtures thereof, a coupling agent, a non linking agent and a hydrated metal oxide filler, and pellitising and cross-linking the blended composition.
Claim 12
Independent Claim
67 words
A method of making a flame retardant, oil resistant plastics composition, the method including blending at a temperature below 160°C an ethylene methyl acrylate copolymer (EMA) together with, ethylene vinyl acetate (EVA), ethylene ethyl acrylate (EEA), ethylene butyl acrylate (EBA), ethylene propylene diene monomer or mixtures thereof, a coupling agent, a non linking agent and a hydrated metal oxide filler, and pellitising and cross-linking the blended composition.
Claim 13
Dependent Claim
17 words
_A method as claimed in claim 9, characterised in that the composition is cross-linked by ironising radiation.
References Cited (Backward Citations)
No citation records indexed.
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