EP0297414A2
Expired / Lapsed
EP
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Bow-tie tree resistant electrical insulating composition
Assignee: Hitachi Cable Ltd
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Filing: 1988-06-22
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Granted: —
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Expires: 2008-06-22
Abstract
Abstract A bow-tie tree resistant electrical insulating composition comprises 100 parts by weight of at least one polymer selected from polyolefins and ethylene copolymers, 0.005 - 1.0 part by weight of a metal salt of a fatty acid containing a hydroxyl group in the molecule, and 0.005 - 1.0 part by weight of a fatty acid or a derivative thereof.
Inventors
- 👤 Kiyoshi Watanabe
- 👤 Takanori Yamazaki
- 👤 Hideki Yagyu
- 👤 Mamoru Kanaoka
- 👤 Katsutoshi Hanawa
- 👤 Chuki Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 08:57
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/2813; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/10; C08K5/101; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
61 words
A bow-tie tree resistant electrical insulating composition comprising 100 parts by weight of at least one polymer selected from a polyolefin and an ethylene copolymer, 0.005 - 1.0 part by weight of a metal salt of a fatty acid containing a hydroxyl group in the molecule, and 0.005 - 1.0 part by weight of a fatty acid or a derivative thereof.
Claim 2
Dependent Claim
61 words
A bow-tie tree resistant electrical insulating composition comprising 100 parts by weight of at least one polymer selected from a polyolefin and an ethylene copolymer, 0.005 - 1.0 part by weight of a metal salt of a fatty acid containing a hydroxyl group in the molecule, and 0.005 - 1.0 part by weight of a fatty acid or a derivative thereof.
Claim 3
Dependent Claim
18 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is a low-density polyethylene.
Claim 4
Dependent Claim
18 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is a high-density polyethylene.
Claim 5
Dependent Claim
16 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is polypropylene.
Claim 6
Dependent Claim
19 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is an ethylene-vinyl acetate copolymer.
Claim 7
Dependent Claim
19 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is an ethylene-ethyl acrylate copolymer.
Claim 8
Dependent Claim
27 words
A bwo tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is a mixture of a low-density polyethylene and an ethylene-vinyl acetate copolymer.
Claim 9
Dependent Claim
26 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the polymer is a mixture of a low-density polyethylene and an ethylene-ethyl acrylate copolymer.
Claim 10
Dependent Claim
29 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the metal salt of the fatty acid containing a hydroxyl group in the molecule is calcium hydroxystearate.
Claim 11
Dependent Claim
29 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the metal salt fo the fatty acid containing a hydroxyl group in the molecule is magnesium ricinoleate.
Claim 12
Dependent Claim
18 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the fatty acid is hydroxystearic acid.
Claim 13
Dependent Claim
21 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein fthe fatty acid derivative is a fatty acid ester.
Claim 14
Dependent Claim
21 words
A bow-tie tree resistant electrical insulating composition according to claim 12, wherein the fatty acid ester is a monotanic acid ester.
Claim 15
Dependent Claim
21 words
A bow-tie tree resistant electrical insulating composition according to claim 1, wherein the fatty acid derivative is a fatty acid amide.
Claim 16
Dependent Claim
19 words
Abow-tie tree resistant electrical insulating composition according to claim 14, wherein the fatty acid amide is stearic acid amide.
Claim 17
Dependent Claim
20 words
A bow-tie tree resistant electrical insulating composition according to claim 14, wherein the fatty acid amide is hydroxystearic acid amide.
Claim 18
Dependent Claim
19 words
A bow-tie tree resistant electrical insulating composition according to claim 14, wherein the fatty acid amide is N,N′-ethylenebis(hydroxystearic acid)amide.
Claim 19
Dependent Claim
23 words
A bow-tie tree resistant electrical insulating composition according to claim 1, which further contains 0.01 - 1.0 part by weight of an antioxidant.
Claim 20
Dependent Claim
16 words
A bow-tie tree resistant electrical insulating composition according to claim 18, wherein the antioxidant is 4,4′-thiobis(3-methyl-6-tert-butylphenol).
Claim 21
Dependent Claim
24 words
A bow-tie tree resistant electrical insulating composition according to claim 1, which further contains 1.0 - 3.0 parts by weight of a crosslinking agent.
Claim 22
Dependent Claim
18 words
A bow-tie tree resistant electrical insulating composition according to claim 20, wherein the crosslinking agent is dicumyl peroxide.
References Cited (Backward Citations)
No citation records indexed.
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