GB827955A - Encasing electrical components in plastic material - Google Patents

Encasing electrical components in plastic material

Info

Publication number
GB827955A
GB827955A GB107/55A GB10755A GB827955A GB 827955 A GB827955 A GB 827955A GB 107/55 A GB107/55 A GB 107/55A GB 10755 A GB10755 A GB 10755A GB 827955 A GB827955 A GB 827955A
Authority
GB
United Kingdom
Prior art keywords
component
plastic material
resin
ethoxylenes
polymers
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.)
Expired
Application number
GB107/55A
Inventor
John Peter Brennan
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.)
Murphy Radio Ltd
Original Assignee
Murphy Radio Ltd
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
Application filed by Murphy Radio Ltd filed Critical Murphy Radio Ltd
Priority to GB107/55A priority Critical patent/GB827955A/en
Publication of GB827955A publication Critical patent/GB827955A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified

Abstract

A potted electrical component or subassembly has, next to the component, a coating of flexible resin and around this a casting of rigid resin. The potting process comprises two stages. The first stage is to coat the component with a plastic material which is sufficiently flexible to stretch and contract without cracking to conform to variations of the size of the component with temperature, suitable materials being co-polymers of polyesters and ethoxylenes with the addition of di-ethylene-triamine. The second stage is to cast or mould plastic material chosen for its insulating and sealing properties, e.g., a low pressure polyester casting resin produced by cross linking a polyester with a monomeric styrene, or an epoxy resin resulting from condensation with cross linking triggered by an amine, or polyurethanes, or co-polymers of ethoxylenes and thiocol.
GB107/55A 1955-01-03 1955-01-03 Encasing electrical components in plastic material Expired GB827955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB107/55A GB827955A (en) 1955-01-03 1955-01-03 Encasing electrical components in plastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB107/55A GB827955A (en) 1955-01-03 1955-01-03 Encasing electrical components in plastic material

Publications (1)

Publication Number Publication Date
GB827955A true GB827955A (en) 1960-02-10

Family

ID=9698538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB107/55A Expired GB827955A (en) 1955-01-03 1955-01-03 Encasing electrical components in plastic material

Country Status (1)

Country Link
GB (1) GB827955A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517436A (en) * 1965-05-04 1970-06-30 Vishay Intertechnology Inc Precision resistor of great stability
US3670091A (en) * 1971-05-20 1972-06-13 Sqrague Electric Co Encapsulated electrical components with protective pre-coat containing collapsible microspheres
US4317158A (en) 1980-03-03 1982-02-23 Sprague Electric Company AC Capacitor
US4738812A (en) * 1982-11-12 1988-04-19 Teleco Oilfield Services Inc. Method of forming an electrode structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517436A (en) * 1965-05-04 1970-06-30 Vishay Intertechnology Inc Precision resistor of great stability
US3670091A (en) * 1971-05-20 1972-06-13 Sqrague Electric Co Encapsulated electrical components with protective pre-coat containing collapsible microspheres
US4317158A (en) 1980-03-03 1982-02-23 Sprague Electric Company AC Capacitor
US4738812A (en) * 1982-11-12 1988-04-19 Teleco Oilfield Services Inc. Method of forming an electrode structure

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