CA2158656A1 - Polymer composition and electrical wire insulation - Google Patents

Polymer composition and electrical wire insulation

Info

Publication number
CA2158656A1
CA2158656A1 CA002158656A CA2158656A CA2158656A1 CA 2158656 A1 CA2158656 A1 CA 2158656A1 CA 002158656 A CA002158656 A CA 002158656A CA 2158656 A CA2158656 A CA 2158656A CA 2158656 A1 CA2158656 A1 CA 2158656A1
Authority
CA
Canada
Prior art keywords
polyester
polymer composition
electrical wire
wire insulation
pis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002158656A
Other languages
French (fr)
Other versions
CA2158656C (en
Inventor
David John Durston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raychem Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB939310146A external-priority patent/GB9310146D0/en
Application filed by Individual filed Critical Individual
Publication of CA2158656A1 publication Critical patent/CA2158656A1/en
Application granted granted Critical
Publication of CA2158656C publication Critical patent/CA2158656C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H01B3/46—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 silicones
    • 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
    • H01B3/42—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 polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

Polymer blend for insulating electrical wires comprises a first polymer (polyester) having an inherent L.O.I. not higher than 21 % and up to 40 % by weight of a polyimide-siloxane (PIS) copolymer. Preferred polyesters are polybutylene terephthalate or polyester-ester block copolymers. Preferred wire constructions have core insulation layer of polyethylene or polyester overlaid with jacket of the polyester/PIS
copolymer blend.
CA002158656A 1993-05-17 1994-05-16 Polymer composition and electrical wire insulation Expired - Fee Related CA2158656C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9310146.7 1993-05-17
GB939310146A GB9310146D0 (en) 1993-05-17 1993-05-17 Polymer composition and electrical wire insulation
PCT/GB1994/001042 WO1994027298A1 (en) 1993-05-17 1994-05-16 Polymer composition and electrical wire insulation

Publications (2)

Publication Number Publication Date
CA2158656A1 true CA2158656A1 (en) 1994-11-27
CA2158656C CA2158656C (en) 2006-07-25

Family

ID=36707354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002158656A Expired - Fee Related CA2158656C (en) 1993-05-17 1994-05-16 Polymer composition and electrical wire insulation

Country Status (1)

Country Link
CA (1) CA2158656C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115353744A (en) * 2022-09-21 2022-11-18 临海市亚东特种电缆料厂 Halogen-free low-smoke flame-retardant polyolefin insulating material for nuclear-grade cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115353744A (en) * 2022-09-21 2022-11-18 临海市亚东特种电缆料厂 Halogen-free low-smoke flame-retardant polyolefin insulating material for nuclear-grade cable
CN115353744B (en) * 2022-09-21 2023-08-29 临海市亚东特种电缆料厂 Halogen-free low-smoke flame-retardant polyolefin insulating material for nuclear-grade cable

Also Published As

Publication number Publication date
CA2158656C (en) 2006-07-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed