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1. (WO1989000759) WIRE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000759 International Application No.: PCT/GB1988/000552
Publication Date: 26.01.1989 International Filing Date: 08.07.1988
Chapter 2 Demand Filed: 10.04.1989
IPC:
H01B 3/42 (2006.01) ,H01B 3/44 (2006.01) ,H01B 7/28 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
3
Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
18
mainly consisting of organic substances
30
plastics; resins; waxes
42
polyesters; polyethers; polyacetals
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
3
Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
18
mainly consisting of organic substances
30
plastics; resins; waxes
44
vinyl resins; acrylic resins
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
7
Insulated conductors or cables characterised by their form
17
Protection against damage caused by external factors, e.g. sheaths or armouring
28
by moisture, corrosion, chemical attack or weather
Applicants:
RAYCHEM LIMITED [GB/GB]; Rolls House 7 Rolls Buildings Fetter Lane London EC4 1NH, GB (AllExceptUS)
PENNECK, Richard, John [GB/GB]; GB (UsOnly)
DAY, Stephen [GB/GB]; GB (UsOnly)
Inventors:
PENNECK, Richard, John; GB
DAY, Stephen; GB
Agent:
DLUGOSZ, A., C. @; Raychem Limited Faraday Road Dorcan, Swindon Wiltshire, GB
Priority Data:
871630710.07.1987GB
871631110.07.1987GB
Title (EN) WIRE
(FR) FIL
Abstract:
(EN) An electrical wire comprises an elongate electrical conductor and electrical insulation that comprises: (a) an inner insulating layer which comprises a polyester that has both aromatic and aliphatic moieties and has a molar carbon to hydrogen ratio of not more than 1.15 e.g. polybutylene terephthalate, (b) an outer insulating layer which comprises a fluorinated polymer. The wire exhibits a good balance of electrical and mechanical properties together with high resistance to wet tracking and dry arcing.
(FR) Un fil électrique comprend un conducteur électrique allongé et un isolant électrique qui comporte: (a) une couche isolante interne contenant un polyester ayant des parties aromatiques et aliphatiques et un rapport molaire carbone/hydrogène qui n'est pas supérieur à 1,15, tel que le téréphtalate de polybutylène; et (b) une couche isolante externe qui contient un polymère fluoré. Ledit fil présente des propriétés électriques et mécaniques bien équilibrées ainsi qu'une résistance élevée au cheminement à l'état humide et à la formation d'arc à sec.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0368886