Patent CA1043034A successfully refreshed from Google Patents.
CA1043034A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Fire retardant ethylene-propylene copolymer
Assignee: Millennium Petrochemicals Inc
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Filing: 1974-05-16
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Granted: 1978-11-21
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Expires: 1994-05-16
Abstract
Abstract IMPROVED FLAME RETARDANT COPOLYMERIC COMPOSITIONS ABSTRACT OF THE DISCLOSURE Improved flame retardant copolymeric compositions comprising a propylene-ethylene copolymer, a halogen-containing fire retardant, an antimony compound, and a minor amount of oxalyl bis (2-benzylidene hydrazide). The copolyermic compositions are particularly suitable for coating copper electrical wire and cable.
Inventors
- 👤 Joseph J. Krackeler
- 👤 Joseph A. Merkert
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 13:35
CPC Classifications
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Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
A flame retardant copolymeric composition compris-ing a propylene-ethylene block copolymer; 1,4,7,10-dimethanocycl-oocta-1,2,3,4,7,8,9,10,13,13,14,14-dodecachloro-1,4,4a,5,6,6a,7, 10,10a,11,12,12a-dodecahydro (1,2,5,6) dibenzene as a fire retard-ant; an antimony compound in an amount less than about 10% by weight, based on the total weight of the composition; and from 0.05 to 1.0% by weight based on the total weight of the composi-tion of oxalyl bis (2-benzylidene hydrazide); the ratio of the said fire retardant to the antimony compound being at least 5/1 by weight.
Claim 2
Dependent Claim
75 words
A flame retardant copolymeric composition compris-ing a propylene-ethylene block copolymer; 1,4,7,10-dimethanocycl-oocta-1,2,3,4,7,8,9,10,13,13,14,14-dodecachloro-1,4,4a,5,6,6a,7, 10,10a,11,12,12a-dodecahydro (1,2,5,6) dibenzene as a fire retard-ant; an antimony compound in an amount less than about 10% by weight, based on the total weight of the composition; and from 0.05 to 1.0% by weight based on the total weight of the composi-tion of oxalyl bis (2-benzylidene hydrazide); the ratio of the said fire retardant to the antimony compound being at least 5/1 by weight.
Claim 3
Dependent Claim
15 words
The flame retardant copolymeric composition of claim 1 wherein the antimony compound is antimony trioxide.
Claim 4
Dependent Claim
29 words
The flame retardant copolymeric composition of claim 1 wherein the weight ratio of the fire retardant of the antimony compound is within the range of about 5/1 to 7/1.
Claim 5
Dependent Claim
23 words
The flame retardant copolymeric composition of claim 1 wherein the amount of oxalyl bis(2-benzylidene hydrazide) ranges from about 0.1 to 0.5% by weight.
Claim 6
Dependent Claim
23 words
The flame retardant copolymeric composition of claim 1 wherein the amount of the antimony compound ranges from about 3 to 7% by weight.
Claim 7
Dependent Claim
23 words
The flame retardant copolymeric composition of claim 1 wherein the amount of the fire retardant ranges from about 25 to 30% by weight.
Claim 8
Dependent Claim
13 words
The flame retardant copolymeric composition of claim 1 containing at least one antioxidant.
References Cited (Backward Citations)
No citation records indexed.
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