ES454025A1 - Expansible heater - Google Patents

Expansible heater

Info

Publication number
ES454025A1
ES454025A1 ES454025A ES454025A ES454025A1 ES 454025 A1 ES454025 A1 ES 454025A1 ES 454025 A ES454025 A ES 454025A ES 454025 A ES454025 A ES 454025A ES 454025 A1 ES454025 A1 ES 454025A1
Authority
ES
Spain
Prior art keywords
openings
electrodes
plane
shape
polymer
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
ES454025A
Other languages
Spanish (es)
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 Corp
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Publication of ES454025A1 publication Critical patent/ES454025A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0616—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms layered or partially layered preforms, e.g. preforms with layers of adhesive or sealing compositions
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0625—Preforms comprising incorporated or associated heating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0005—Conductive

Abstract

Improvements in heating elements, of the type comprising a pair of electrodes and a sheet member (A) comprising an organic polymer and electrically conductive particles dispersed in the polymer, in an amount sufficient to render the member electrically conductive with resistivity greater than 10ohm.cm at room temperature; characterized in that the electrodes are flexible sheet electrodes that (i) are connected to opposite faces of said sheet member; (ii) are substantially coplanar with said sheet member, (iii) are composed of a material that has a resistivity of less than 10 ohm.cm at room temperature; and (iv) they are adapted to be connected to an external energy source to make current pass through said laminar member; and in that said laminar member (A) and said laminar electrodes have a plurality of openings through their thickness, the openings being: (a) in the case of a heating element that is not deformed in the plane thereof, the openings are of a size, shape and distribution such that they allow at least one of the dimensions of the element in the plane thereof to be altered at the melting point of the polymer in a percentage that is at least 30%, based on the original dimension, without complete rupture of the electrode at any point, the dimensional change being accommodated by a change in the shape of the openings; or (b) in the case of a heating element that has undergone deformation in the plane thereof, the openings are those obtained by deformation of openings whose size, shape and distribution allow at least one of the dimensions of the element in the plane of the It alters at the melting point of the polymer by a percentage that is at least 30%, based on the original dimension, without complete rupture of the electrode at any point, accommodating the dimensional change through a change in the shape of the openings. (Machine-translation by Google Translate, not legally binding)
ES454025A 1975-12-08 1976-12-07 Expansible heater Expired ES454025A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63844075A 1975-12-08 1975-12-08

Publications (1)

Publication Number Publication Date
ES454025A1 true ES454025A1 (en) 1977-11-16

Family

ID=24560040

Family Applications (1)

Application Number Title Priority Date Filing Date
ES454025A Expired ES454025A1 (en) 1975-12-08 1976-12-07 Expansible heater

Country Status (11)

Country Link
JP (1) JPS6013277B2 (en)
AU (1) AU512189B2 (en)
BE (1) BE849186A (en)
CA (1) CA1100561A (en)
DE (1) DE2655543A1 (en)
ES (1) ES454025A1 (en)
FR (1) FR2335022A1 (en)
GB (1) GB1569161A (en)
HK (1) HK44581A (en)
IT (1) IT1133908B (en)
MY (1) MY8200283A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095044A (en) * 1976-10-26 1978-06-13 Raychem Corporation Multiple cable adapter and splice case including the same
GB1600256A (en) * 1976-12-13 1981-10-14 Raychem Corp Process for the manufacture of electrical devices comprising conductive polymer compositions
DE2832119A1 (en) * 1977-07-25 1979-02-08 Raychem Corp SELF-HEATABLE AND HEAT REPLACEMENT OBJECTIVE AND PROCESS FOR APPLYING A COVERING TO AN OBJECT
US4272471A (en) * 1979-05-21 1981-06-09 Raychem Corporation Method for forming laminates comprising an electrode and a conductive polymer layer
GB8305639D0 (en) * 1983-03-01 1983-03-30 Raychem Sa Nv Electrically heat-recoverable article
GB8314651D0 (en) * 1983-05-26 1983-06-29 Raychem Sa Nv Electrically heat-recoverable article
CA1234597A (en) * 1983-11-17 1988-03-29 Michael L. Jensen Electrical devices comprising ptc elements
GB8421357D0 (en) * 1984-08-22 1984-09-26 Raychem Gmbh Means for sealing
GB2228653B (en) * 1989-01-25 1992-03-04 Thermaflex Ltd Flexible heating element
DE19823506B4 (en) * 1998-05-26 2006-05-04 Latec Ag Heating sleeve for pipes
DE19823505A1 (en) * 1998-05-26 1999-12-09 Latec Ag Zollikon Device for heating media
DE10304761B4 (en) * 2003-02-05 2005-10-27 W.E.T. Automotive Systems Ag Flexible heating element
US20080010815A1 (en) * 2006-07-17 2008-01-17 W.E.T. Automotive Group Ag Heating tape structure
CN104270838A (en) * 2014-09-10 2015-01-07 苏州容电储能科技有限公司 Electric heating coating for interface energizing and interface heating and preparing method of electric heating coating
DE102015017122B4 (en) 2015-07-03 2023-03-23 Kautex Textron Gmbh & Co. Kg operating fluid tank
DE102017121041A1 (en) * 2017-05-24 2018-11-29 Webasto SE Heater and method of making the same
FR3072178B1 (en) * 2017-10-10 2019-10-11 Autoliv Development Ab ELECTRIC DEVICE OF VEHICLE

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB905867A (en) * 1957-11-18 1962-09-12 Eisler Paul Manufacture of electrical heating and conducting devices
US3221145A (en) * 1963-09-06 1965-11-30 Armstrong Cork Co Laminated heating sheet
US3351882A (en) * 1964-10-09 1967-11-07 Polyelectric Corp Plastic resistance elements and methods for making same
FR1436366A (en) * 1965-05-28 1966-04-22 Ici Ltd flexible heating elements
US3413442A (en) * 1965-07-15 1968-11-26 Texas Instruments Inc Self-regulating thermal apparatus
GB1168770A (en) * 1965-12-01 1969-10-29 Texas Instruments Inc Self-Regulating Heaters.
GB1265194A (en) * 1968-08-15 1972-03-01
GB1293456A (en) * 1969-04-18 1972-10-18 Breveteam Sa A process for producing a reticulated sheet and a reticulated sheet produced in accordance with the process
BE794900A (en) * 1972-02-03 1973-08-02 Cellu Prod Co STRETCHABLE TUBULAR PACKAGING MATERIAL AND PACKAGING SHAPED WITH IT
US3858144A (en) * 1972-12-29 1974-12-31 Raychem Corp Voltage stress-resistant conductive articles
GB1497051A (en) * 1974-01-23 1978-01-05 Raychem Sa Nv Reinforced heat-recoverable articles and their uses

Also Published As

Publication number Publication date
JPS52107645A (en) 1977-09-09
IT1133908B (en) 1986-07-24
AU512189B2 (en) 1980-09-25
FR2335022A1 (en) 1977-07-08
JPS6013277B2 (en) 1985-04-05
BE849186A (en) 1977-06-08
HK44581A (en) 1981-09-11
CA1100561A (en) 1981-05-05
DE2655543A1 (en) 1977-06-23
MY8200283A (en) 1982-12-31
DE2655543C2 (en) 1987-07-02
FR2335022B1 (en) 1982-03-05
AU2035276A (en) 1978-06-15
GB1569161A (en) 1980-06-11

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