GB1324971A – Duplicating stencils
– Google Patents
GB1324971A – Duplicating stencils
– Google Patents
Duplicating stencils
Info
Publication number
GB1324971A
GB1324971A
GB31071A
GB1324971DA
GB1324971A
GB 1324971 A
GB1324971 A
GB 1324971A
GB 31071 A
GB31071 A
GB 31071A
GB 1324971D A
GB1324971D A
GB 1324971DA
GB 1324971 A
GB1324971 A
GB 1324971A
Authority
GB
United Kingdom
Prior art keywords
layer
layers
jan
electrically conductive
chloride
Prior art date
1971-01-04
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
GB31071A
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.)
NRG Manufacturing Ltd
Original Assignee
NRG Manufacturing 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.)
1971-01-04
Filing date
1972-01-04
Publication date
1973-07-25
1972-01-04
Application filed by NRG Manufacturing Ltd
filed
Critical
NRG Manufacturing Ltd
1973-07-25
Publication of GB1324971A
publication
Critical
patent/GB1324971A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
B41N1/00—Printing plates or foils; Materials therefor
B41N1/24—Stencils; Stencil materials; Carriers therefor
Abstract
1324971 Stencils GESTETNER Ltd 4 Jan 1972 [4 Jan 1971] 310/71 Heading B6C A stencil blank, adapted to be cut by an electric stylus comprises two adjacent thermoplastic layers, each having electrically conductive particles dispersed in it, one of the layers being ink-impervious having a higher electrical resistance than the other and having semiconductor particles also dispersed in it. The electrically conductive particles may be of carbon, and the semi-conductor particles of silicon, germanium, cuprous oxide, cadmium sulphide, cadmium selenide or indium oxide. The thermoplastic layers may comprise polyvinyl chloride, polyvinylidene chloride, polyvinyl butyral, polyvinyl formal, a vinyl chloride/ vinyl acetate copolymer or a mixture of any of these. The layer of higher resistance may be impregnated into a layer of stencil tissue, and may comprise plasticized nitrocellulose or cellulose acetate propionate (in place of a vinyl resin), the other layer being either coated upon it or upon the face of an adjacent backing paper. The layer of higher resistance may be built up from multiple sub-layers, and its surface may be given a grey colour by addition of titanium dioxide, zinc oxide, zinc sulphide or mixtures thereof.
GB31071A
1971-01-04
1972-01-04
Duplicating stencils
Expired
GB1324971A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB31071
1971-01-04
Publications (1)
Publication Number
Publication Date
GB1324971A
true
GB1324971A
(en)
1973-07-25
Family
ID=9702145
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB31071A
Expired
GB1324971A
(en)
1971-01-04
1972-01-04
Duplicating stencils
Country Status (15)
Country
Link
JP
(1)
JPS527366B2
(en)
AR
(1)
AR192733A1
(en)
AT
(1)
AT325637B
(en)
BR
(1)
BR7200007D0
(en)
CA
(1)
CA956178A
(en)
CH
(1)
CH601028A5
(en)
DK
(1)
DK135108C
(en)
ES
(1)
ES398548A1
(en)
FR
(1)
FR2121253A5
(en)
GB
(1)
GB1324971A
(en)
IL
(1)
IL38465A
(en)
IT
(1)
IT944659B
(en)
NL
(1)
NL7200016A
(en)
NO
(1)
NO129779B
(en)
ZA
(1)
ZA718628B
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5426175B2
(en)
*
1974-01-21
1979-09-03
JPS5149045A
(en)
*
1974-10-25
1976-04-27
Asia Stencil Paper
DENKIKIROKU SHIKITOSHAGENSHI
JPS5397846A
(en)
*
1977-02-05
1978-08-26
Ricoh Co Ltd
Copying original for electronic recording
US4308314A
(en)
*
1978-08-04
1981-12-29
Sekisui Kagaku Kogyo Kabushiki Kaisha
Electric recording material
US5250698A
(en)
*
1992-08-05
1993-10-05
Ciba-Geigy Corporation
2-(2-hydroxy-3-perfluoroalkyl thiomethyl-5-alkylphenyl)2H-benzotriazoles and stabilized compositions thereof
US6166218A
(en)
1996-11-07
2000-12-26
Ciba Specialty Chemicals Corporation
Benzotriazole UV absorbers having enhanced durability
1971
1971-12-23
CA
CA130,957A
patent/CA956178A/en
not_active
Expired
1971-12-27
IL
IL38465A
patent/IL38465A/en
unknown
1971-12-28
ZA
ZA718628A
patent/ZA718628B/en
unknown
1971-12-30
NO
NO04979/71A
patent/NO129779B/no
unknown
1971-12-31
IT
IT33233/71A
patent/IT944659B/en
active
1972
1972-01-03
NL
NL7200016A
patent/NL7200016A/xx
not_active
Application Discontinuation
1972-01-03
ES
ES398548A
patent/ES398548A1/en
not_active
Expired
1972-01-03
BR
BR7/72A
patent/BR7200007D0/en
unknown
1972-01-03
DK
DK1972A
patent/DK135108C/en
not_active
Application Discontinuation
1972-01-03
CH
CH2672A
patent/CH601028A5/xx
not_active
IP Right Cessation
1972-01-04
AR
AR239948A
patent/AR192733A1/en
active
1972-01-04
FR
FR7200154A
patent/FR2121253A5/fr
not_active
Expired
1972-01-04
AT
AT3472A
patent/AT325637B/en
not_active
IP Right Cessation
1972-01-04
GB
GB31071A
patent/GB1324971A/en
not_active
Expired
1972-01-05
JP
JP47003816A
patent/JPS527366B2/ja
not_active
Expired
Also Published As
Publication number
Publication date
IL38465A
(en)
1974-10-22
AT325637B
(en)
1975-10-27
FR2121253A5
(en)
1972-08-18
NL7200016A
(en)
1972-07-06
JPS4715210A
(en)
1972-08-19
AR192733A1
(en)
1973-03-14
IT944659B
(en)
1973-04-20
DE2200101A1
(en)
1972-08-03
DK135108C
(en)
1977-08-08
BR7200007D0
(en)
1973-06-14
ES398548A1
(en)
1975-06-16
DE2200101B2
(en)
1977-06-30
ATA3472A
(en)
1975-01-15
JPS527366B2
(en)
1977-03-02
ZA718628B
(en)
1972-09-27
AU3747671A
(en)
1973-07-05
CH601028A5
(en)
1978-06-30
IL38465A0
(en)
1972-02-29
NO129779B
(en)
1974-05-27
CA956178A
(en)
1974-10-15
DK135108B
(en)
1977-03-07
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(en)
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Legal Events
Date
Code
Title
Description
1973-12-05
PS
Patent sealed [section 19, patents act 1949]
1981-07-08
PCNP
Patent ceased through non-payment of renewal fee
