WO1996037899A1 - Compositions polymeres et cables electriques - Google Patents
Compositions polymeres et cables electriques Download PDFInfo
- Publication number
- WO1996037899A1 WO1996037899A1 PCT/GB1996/001252 GB9601252W WO9637899A1 WO 1996037899 A1 WO1996037899 A1 WO 1996037899A1 GB 9601252 W GB9601252 W GB 9601252W WO 9637899 A1 WO9637899 A1 WO 9637899A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- parts
- filler
- lead
- surface treatment
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 229920000642 polymer Polymers 0.000 title claims abstract description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000012756 surface treatment agent Substances 0.000 claims abstract description 15
- 239000011787 zinc oxide Substances 0.000 claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 239000004927 clay Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 10
- 239000005060 rubber Substances 0.000 claims abstract description 10
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims abstract description 9
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 7
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 claims abstract description 7
- 150000002611 lead compounds Chemical class 0.000 claims abstract description 6
- 239000004615 ingredient Substances 0.000 claims abstract description 5
- 239000012764 mineral filler Substances 0.000 claims abstract description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 235000005985 organic acids Nutrition 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 150000004756 silanes Chemical class 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 16
- 230000032683 aging Effects 0.000 description 7
- 230000001939 inductive effect Effects 0.000 description 7
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 6
- 239000012188 paraffin wax Substances 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- IPJGAEWUPXWFPL-UHFFFAOYSA-N 1-[3-(2,5-dioxopyrrol-1-yl)phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC(N2C(C=CC2=O)=O)=C1 IPJGAEWUPXWFPL-UHFFFAOYSA-N 0.000 description 2
- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical compound C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- ILXWFJOFKUNZJA-UHFFFAOYSA-N ethyltellanylethane Chemical group CC[Te]CC ILXWFJOFKUNZJA-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- 229940054266 2-mercaptobenzothiazole Drugs 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- CPGFMWPQXUXQRX-UHFFFAOYSA-N 3-amino-3-(4-fluorophenyl)propanoic acid Chemical compound OC(=O)CC(N)C1=CC=C(F)C=C1 CPGFMWPQXUXQRX-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FMGUJLASXUBMOP-UHFFFAOYSA-N N-Methyl-N,4-dinitrosoaniline Chemical compound O=NN(C)C1=CC=C(N=O)C=C1 FMGUJLASXUBMOP-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- JMKXRFGJWPNWOR-UHFFFAOYSA-N SC=1[N-]C2=C(N1)C=CC=C2.[Zn+2].SC=2[N-]C1=C(N2)C=CC=C1 Chemical compound SC=1[N-]C2=C(N1)C=CC=C2.[Zn+2].SC=2[N-]C1=C(N2)C=CC=C1 JMKXRFGJWPNWOR-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 235000006650 Syzygium cordatum Nutrition 0.000 description 1
- 240000005572 Syzygium cordatum Species 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- DADTZHAWDPZVFJ-UHFFFAOYSA-N [tris(diethylcarbamothioylsulfanyl)-$l^{4}-tellanyl] n,n-diethylcarbamodithioate Chemical compound CCN(CC)C(=S)S[Te](SC(=S)N(CC)CC)(SC(=S)N(CC)CC)SC(=S)N(CC)CC DADTZHAWDPZVFJ-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 229940116901 diethyldithiocarbamate Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- VYQNWZOUAUKGHI-UHFFFAOYSA-N monobenzone Chemical compound C1=CC(O)=CC=C1OCC1=CC=CC=C1 VYQNWZOUAUKGHI-UHFFFAOYSA-N 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000003142 primary aromatic amines Chemical class 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- KTGDBUHGMFATFV-UHFFFAOYSA-N zinc lead(2+) oxygen(2-) Chemical compound [O--].[O--].[Zn++].[Pb++] KTGDBUHGMFATFV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
Definitions
- This invention relates to polymer compositions for -use in electric cables, and more particularly as dielectric (insulation) in "medium voltage” power cables in which the dielectric is bounded by a conductor screen and a core screen both of conductive polymeric material; it also relates to the cables in which they are used.
- compositions based on ethylene copolymer rubbers which may be defined for certainty in the context of this application as hydrocarbon copolymers of ethylene with at least one other alkene monomer having from 3 to 10 carbon atoms which copolymers have rubbery elastic characteristics .
- the service life of medium-voltage cables is in many cases limited by the long term diminution of electric strength of the dielectric which is now attributed to the formation of water-trees (or electric trees, if water is absent) , and current EPR formulations generally contain an oxide of lead in an amount corresponding to several phr (parts per hundred of polymer) of lead, calculated as element, as the means of securing a sufficient stability of electrical strength (a tree suppressant) .
- the amount of lead used in electric cables is small compared with other usages, it is now considered desirable to eliminate any avoidable source of lead in contact with the environment.
- Zinc oxide is a conventional constituent of EPR- and EPDM-based compositions, used at a level around 5phr as a curing aid or pH stabiliser; but it has not been perceived as having a useful effect on electrical ⁇ tablility.
- compositions in accordance with the present invention comprise, in parts by weight:
- Polymer base of which at least
- Zinc oxide 10-30 Lead compounds not to exceed 1 calculated as element and appropriate amounts of conventional ingredients comprising an antioxidant, a curing system and a processing aid.
- the ethylene copolymer rubber may be an EPR or an
- EPDM each of which may be either semi-crystalline or amorphous provided that it has rubbery elastic properties.
- Ethylene copolymer rubbers made with "single-site" catalyst systems can also be used and may have advantages in some cases.
- Preferably all the filler is calcined clay.
- the surface treatment agent for the filler is preferably selected from silanes, siloxanes, metal salts of organic acids, and organic acids that are substantially insoluble in water. More than one surface treatment agent can be used. Silane surface treatment agents are preferred.
- the filler is preferably pre-treated with the surface treatment agent (or with one of them) but preferably the composition includes free surface treatment agent as well. Appropriate amounts will vary somewhat from one surface treatment agent to another, but will typically be in the range from about 1-2 parts pre-coated on the filler and about 1-5 parts added separately.
- Preferred content of zinc oxide is about 15-25 parts; conventional grades can be used, but grades of higher purity are preferred.
- compositions based on semicrystalline EPR's or EPDM's preferably contain polyethylene, preferably in an amount in the range from 3 to 10 parts, as a processing aid; larger amounts, up to the limit of 50 parts, can be used for cost reduction and/or in the case of some amorphous EPR's or EPDM's to enable granulation of the composition.
- the content of lead compounds should be as small as possible, and ideally zero; however, a small amount of certain lead compounds may achieve a major improvement in electrical stability with much less environmental hazard than conventional EPR or EPDM compositions for medium-voltage cables.
- any of the conventional antioxidants can be used in their usual amounts; we particularly prefer antioxidants of the poly-dihydroxyguinoline class, in amounts in the range 0.5 to 3 parts.
- compositions of the invention can be cured with peroxides, optionally with poly-unsaturated co-agents such as triallylisocyanurate, or with peroxides and sulfur; compositions based on EPDM's can also be cured with conventional sulfur-based systems.
- Suitable processing aids apart from those already mentioned, include paraffin wax in conventional amounts up to around 6 parts and hydrocarbon oils in amounts up to around 30 parts (varying form oil to oil) .
- compositions as detailed below were prepared on a 12-inch (300m) laboratory 2-roll mill; the polymer-base was plasticised and the other ingredients, except curing agents, added at a temperature controlled to be in the range 120- 130°; the curing agents were added in a separate step on the "cold" mill. It should be noted that a few ingredients used in experiments around 30 years ago are no longer available.
- Example 1
- the composition showed first signs of brittleness after about 35 days.
- Deterioration was detectable in about weeks 60 to 70, when readings ranged from 0.49 to 1.0 x 10 14 ohm.cm, and gradually increased with the readings falling below 0.1 x 10 14 ohm.cm for the first time at week 74 and reaching 0.014 x 10 14 when the tests were discontinued at 120 weeks.
- Specific inductive capacitance varied by no more than 5% from its value after one day's exposure until week 78, and had changed by only about 8% at the end of 120 weeks.
- composition had a tensile strength of 7.07MPa (1025psi) , elongation of 390% and volume resistivity of 13 x 10 15 ohm.cm. This composition showed first signs of brittleness in the preliminary air ageing test after 48 days at 150°C. The volume resistivity in the wet electrical
- Example 4 This was identical with Example 1, except that 1 part of lead stearate was added. After press cure for 45 minutes at 160°, the composition had a tensile strength of 6.4MPa (925p ⁇ i) , elongation of 515% and volume resistivity of 9.2 x 10 1E ohm.cm.
- the volume resistivity remained in the range 1.1 to 3.6 x 10 14 ohm.cm throughout the 120-week period of the test in water, with values in the upper part of the' range (over 2.5) observed mostly in the period from 34 to 68 weeks.
- Measurements of increase in specific inductive capacitance showed no very clear pattern, but were mostly below 5% for the first 64 weeks and mostly in the range 5-10% in weeks 65-120. Power factors observed were all in the range from 1.7 to 2.8, with only about five readings over 2.0% after week 30.
- Example 5 The composition of this example comprises 95 parts of a semicrystalline EPR (Nordel® 2722), 5 parts of a low-density polyethylene of Melt Index 2.0, 60 parts of surface-treated calcined clay (Translink® 37), l part of vinyl tris i 2-methoxy ethoxy) silane, 20 parts zinc oxide, 5 parts paraffin wax, 1.5 parts antioxidant (Flectol ® H) and 2.5 parts of dicumyl peroxide (Dicup®) .
- a semicrystalline EPR Naordel® 2722
- 5 parts of a low-density polyethylene of Melt Index 2.0 60 parts of surface-treated calcined clay (Translink® 37), l part of vinyl tris i 2-methoxy ethoxy) silane, 20 parts zinc oxide, 5 parts paraffin wax, 1.5 parts antioxidant (Flectol ® H) and 2.5 parts of dicumyl peroxide (Dicup®) .
- Example 6 Example 6
- composition of this example comprises 100 parts of an amorphous EPR (Nordel ® 2522) , 60 parts of surface-treated calcined clay (Translink® 37) , 1 part of vinyl tris ( 2-methoxy ethoxy) silane, 20 parts zinc oxide, 5 parts paraffin wax, 1.5 parts antioxidant (Flectol® H) and 2.5 parts of dicumyl peroxide (Dicup®) .
- Example 7 The composition of this example comprises 100 parts of an semicrystalline EPR (Nordel® 2722) , 60 parts of surface- treated calcined clay (Translink® 37) , 1 part of vinyl tris ⁇ 2-methoxy ethoxy) silane, 20 parts zinc oxide, 1.5 parts paraffin wax, 1.5 parts antioxidant (Agerite ® MA) and 2.5 parts of dicumyl peroxide (Dicup ® ) .
- EPR semicrystalline EPR
- Translink® 37 surface- treated calcined clay
- vinyl tris ⁇ 2-methoxy ethoxy silane 20 parts zinc oxide
- 1.5 parts paraffin wax 1.5 parts
- antioxidant antioxidant
- Dicup ® MA dicumyl peroxide
- Example 9 This was identical with Example 7 except that the clay was a non-commercial untreated one, identical with Translink 37 except for the omission of the surface treatment normally applied to it.
- Example 9 This was identical with Example 7 except that the clay was a non-commercial untreated one, identical with Translink 37 except for the omission of the surface treatment normally applied to it.
- Comparison Example B dicumyl peroxide (Dicup ® ) (3 parts) and sulfur (0.3 part) . Both these comparison examples were rejected on the basis of preliminary screening tests in air at 150°C, and were not subjected to electrical stability tests; comparison Example A exhibited brittleness in this test at 11 days and Comparison Example B surface degradation at 6 days.
- Example 2 This was identical with Example 1 except that a conventional
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU58267/96A AU5826796A (en) | 1995-05-25 | 1996-05-24 | Polymer compositions and electric cables |
MX9708717A MX9708717A (es) | 1995-05-25 | 1996-05-24 | Composiciones polimericas y cables electricos. |
GB9722800A GB2314562A (en) | 1995-05-25 | 1996-05-24 | Polymer compositions and electric cables |
EP96919899A EP0829090A1 (fr) | 1995-05-25 | 1996-05-24 | Compositions polymeres et cables electriques |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9510620.9 | 1995-05-25 | ||
GB9510620A GB9510620D0 (en) | 1995-05-25 | 1995-05-25 | Polymer compositions and electric cables |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996037899A1 true WO1996037899A1 (fr) | 1996-11-28 |
Family
ID=10775029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1996/001252 WO1996037899A1 (fr) | 1995-05-25 | 1996-05-24 | Compositions polymeres et cables electriques |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0829090A1 (fr) |
AR (1) | AR010975A1 (fr) |
AU (1) | AU5826796A (fr) |
CA (1) | CA2222094A1 (fr) |
GB (2) | GB9510620D0 (fr) |
MX (1) | MX9708717A (fr) |
PE (1) | PE2798A1 (fr) |
WO (1) | WO1996037899A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6815062B2 (en) | 1999-06-21 | 2004-11-09 | Pirelli Cavi E Sistemi S.P.A. | Cable, in particular for electric energy transportation or distribution, and an insulating composition used therein |
US7985804B2 (en) | 2006-11-06 | 2011-07-26 | Exxonmobil Chemical Patents Inc. | Rubber toughened compositions, articles, films, and methods of making the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2344613A1 (fr) * | 1976-03-15 | 1977-10-14 | Alcan Res & Dev | Revetement a base de polyethylene et cable conducteur electrique comportant un tel revetement |
US4204024A (en) * | 1978-06-15 | 1980-05-20 | Harvey Hubbell, Incorporated | Electrical insulation composition having low power factor |
EP0042440A1 (fr) * | 1979-12-25 | 1981-12-30 | Acome, Societe Cooperative De Travailleurs | Composition organique de poids moleculaire eleve de retardement du feu |
-
1995
- 1995-05-25 GB GB9510620A patent/GB9510620D0/en active Pending
-
1996
- 1996-05-22 PE PE00037896A patent/PE2798A1/es not_active Application Discontinuation
- 1996-05-24 CA CA 2222094 patent/CA2222094A1/fr not_active Abandoned
- 1996-05-24 WO PCT/GB1996/001252 patent/WO1996037899A1/fr not_active Application Discontinuation
- 1996-05-24 AU AU58267/96A patent/AU5826796A/en not_active Abandoned
- 1996-05-24 MX MX9708717A patent/MX9708717A/es unknown
- 1996-05-24 EP EP96919899A patent/EP0829090A1/fr not_active Withdrawn
- 1996-05-24 AR ARP010270496 patent/AR010975A1/es unknown
- 1996-05-24 GB GB9722800A patent/GB2314562A/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2344613A1 (fr) * | 1976-03-15 | 1977-10-14 | Alcan Res & Dev | Revetement a base de polyethylene et cable conducteur electrique comportant un tel revetement |
US4204024A (en) * | 1978-06-15 | 1980-05-20 | Harvey Hubbell, Incorporated | Electrical insulation composition having low power factor |
EP0042440A1 (fr) * | 1979-12-25 | 1981-12-30 | Acome, Societe Cooperative De Travailleurs | Composition organique de poids moleculaire eleve de retardement du feu |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6815062B2 (en) | 1999-06-21 | 2004-11-09 | Pirelli Cavi E Sistemi S.P.A. | Cable, in particular for electric energy transportation or distribution, and an insulating composition used therein |
US7985804B2 (en) | 2006-11-06 | 2011-07-26 | Exxonmobil Chemical Patents Inc. | Rubber toughened compositions, articles, films, and methods of making the same |
Also Published As
Publication number | Publication date |
---|---|
EP0829090A1 (fr) | 1998-03-18 |
AR010975A1 (es) | 2000-08-02 |
GB9722800D0 (en) | 1997-12-24 |
CA2222094A1 (fr) | 1996-11-28 |
MX9708717A (es) | 1997-12-31 |
PE2798A1 (es) | 1998-02-28 |
GB2314562A (en) | 1998-01-07 |
AU5826796A (en) | 1996-12-11 |
GB9510620D0 (en) | 1995-07-19 |
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