CA2278246A1 - Polymer composition - Google Patents

Polymer composition Download PDF

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Publication number
CA2278246A1
CA2278246A1 CA002278246A CA2278246A CA2278246A1 CA 2278246 A1 CA2278246 A1 CA 2278246A1 CA 002278246 A CA002278246 A CA 002278246A CA 2278246 A CA2278246 A CA 2278246A CA 2278246 A1 CA2278246 A1 CA 2278246A1
Authority
CA
Canada
Prior art keywords
composition
filler
polymer composition
quiescent state
distortion forces
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
CA002278246A
Other languages
French (fr)
Other versions
CA2278246C (en
Inventor
David Lussey
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.)
Peratech Ltd
Original Assignee
Peratech Limited
David Lussey
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 GBGB9701577.0A external-priority patent/GB9701577D0/en
Priority claimed from GBGB9704389.7A external-priority patent/GB9704389D0/en
Priority claimed from GBGB9710844.3A external-priority patent/GB9710844D0/en
Priority claimed from GBGB9717367.8A external-priority patent/GB9717367D0/en
Priority claimed from GBGB9721401.9A external-priority patent/GB9721401D0/en
Application filed by Peratech Limited, David Lussey filed Critical Peratech Limited
Publication of CA2278246A1 publication Critical patent/CA2278246A1/en
Application granted granted Critical
Publication of CA2278246C publication Critical patent/CA2278246C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
    • H01C10/106—Adjustable resistors adjustable by mechanical pressure or force on resistive material dispersed in an elastic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04703—Mounting of controlling member
    • G05G2009/04722—Mounting of controlling member elastic, e.g. flexible shaft
    • G05G2009/04729—Mounting of controlling member elastic, e.g. flexible shaft melastomeric
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
    • G05G2009/04762—Force transducer, e.g. strain gauge

Abstract

A polymer composition is elastically deformable from a quiescent state. The composition includes at least one electrically conductive filler dispersed within and encapsulated by a non-conductive elastomer, the nature and concentration of the filler being such that the electrical resistivity of the composition is variable in response to distortion forces down to a value substantially equal to that of the conductor bridges of the filler. The composition further includes a modifier which, on release of the distortion forces, accelerates the elastic return of the composition to its quiescent state.
CA002278246A 1997-01-25 1998-01-23 Polymer composition Expired - Fee Related CA2278246C (en)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
GB9701577.0 1997-01-25
GBGB9701577.0A GB9701577D0 (en) 1997-01-25 1997-01-25 Elastomeric conductive polymer
GBGB9704389.7A GB9704389D0 (en) 1997-03-03 1997-03-03 Elastomeric conductive polymer
GB9704389.7 1997-03-03
GB9710844.3 1997-05-28
GBGB9710844.3A GB9710844D0 (en) 1997-05-28 1997-05-28 Electrically conductive polymers for switching, sensing and charge generation
GBGB9717367.8A GB9717367D0 (en) 1997-03-03 1997-08-18 Pressure sensitive battery cells
GB9717367.8 1997-08-18
GBGB9721401.9A GB9721401D0 (en) 1997-03-03 1997-10-10 Elastomeric conductive polymers
GB9721401.9 1997-10-10
GBGB9722399.4A GB9722399D0 (en) 1997-03-03 1997-10-24 Elastomeric conductive polymers
GB9722399.4 1997-10-24
PCT/GB1998/000206 WO1998033193A1 (en) 1997-01-25 1998-01-23 Polymer composition

Publications (2)

Publication Number Publication Date
CA2278246A1 true CA2278246A1 (en) 1998-07-30
CA2278246C CA2278246C (en) 2007-04-03

Family

ID=27547283

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002278246A Expired - Fee Related CA2278246C (en) 1997-01-25 1998-01-23 Polymer composition

Country Status (9)

Country Link
US (1) US6291568B1 (en)
EP (1) EP0956565B1 (en)
JP (1) JP2001509311A (en)
CN (1) CN1248341A (en)
AT (1) ATE370503T1 (en)
AU (1) AU5674898A (en)
CA (1) CA2278246C (en)
DE (1) DE69838245T2 (en)
WO (1) WO1998033193A1 (en)

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Also Published As

Publication number Publication date
WO1998033193A1 (en) 1998-07-30
AU5674898A (en) 1998-08-18
CN1248341A (en) 2000-03-22
EP0956565A1 (en) 1999-11-17
JP2001509311A (en) 2001-07-10
US6291568B1 (en) 2001-09-18
CA2278246C (en) 2007-04-03
ATE370503T1 (en) 2007-09-15
EP0956565B1 (en) 2007-08-15
DE69838245T2 (en) 2008-05-15
DE69838245D1 (en) 2007-09-27

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Effective date: 20160125