GB1125956A - A process for the production of paper with a low dielectric loss factor - Google Patents

A process for the production of paper with a low dielectric loss factor

Info

Publication number
GB1125956A
GB1125956A GB3900565A GB3900565A GB1125956A GB 1125956 A GB1125956 A GB 1125956A GB 3900565 A GB3900565 A GB 3900565A GB 3900565 A GB3900565 A GB 3900565A GB 1125956 A GB1125956 A GB 1125956A
Authority
GB
United Kingdom
Prior art keywords
cellulose
paper
water
oxide
treated
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
GB3900565A
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.)
FIDES TREUHAND VEREINIGUNG
Original Assignee
FIDES TREUHAND VEREINIGUNG
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 FIDES TREUHAND VEREINIGUNG filed Critical FIDES TREUHAND VEREINIGUNG
Publication of GB1125956A publication Critical patent/GB1125956A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/20—Chemically or biochemically modified fibres
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/52—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials wood; paper; press board

Abstract

1,125,956. Cellulosic pulps; paper. FIDES TREUHAND-VEREINIGUNG. 13 Sept., 1965 [14 Sept.. 1964], No. 39005/65. Headings D2B and D2W. Paper having a low dielectric loss is obtained by treating an aqueous dispersion of finelydivided cellulose comprising at least 80% of alpha-cellulose with an aqueous solution of a water-soluble salt, oxide or hydroxide of lead, mercury, nickel, beryllium, aluminium, germanium, cadmium, tin, zinc or zirconium, washing the treated cellulose with water and converting the washed cellulose into paper the washed cellulose comprising substantially the sole cellulose constituent of the paper. The aqueous suspension may be placed in an electrolytic tank having an anode, which may be a wall of the tank of a separate anode, of one of the metals listed, and the water-soluble salt, oxide or hydroxide formed therein. The cathode may then be in a compartment separated from the reaction compartment by a cation-exchange diaphragm. The water in which the salt is dissolved, and that used to wash the treated pulp may be deionized. The pulp to be treated may be first washed with an acid to remove ashforming constituents, and in this case the watersoluble salt, oxide or hydroxide may serve to neutralize excess acid.
GB3900565A 1964-09-14 1965-09-13 A process for the production of paper with a low dielectric loss factor Expired GB1125956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0035062 1964-09-14

Publications (1)

Publication Number Publication Date
GB1125956A true GB1125956A (en) 1968-09-05

Family

ID=7374019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3900565A Expired GB1125956A (en) 1964-09-14 1965-09-13 A process for the production of paper with a low dielectric loss factor

Country Status (6)

Country Link
CH (1) CH442961A (en)
DE (1) DE1546428B2 (en)
FI (1) FI52232C (en)
GB (1) GB1125956A (en)
NL (1) NL6511529A (en)
SE (1) SE312066B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140045684A1 (en) * 2010-07-28 2014-02-13 Nippon Paper Papylia Co., Ltd. Water-dispersible paper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142652A (en) * 1977-05-17 1978-12-12 Nippon Kodoshi Kogyo Kk Paper for electrolytic capacitor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140045684A1 (en) * 2010-07-28 2014-02-13 Nippon Paper Papylia Co., Ltd. Water-dispersible paper
US8877678B2 (en) * 2010-07-28 2014-11-04 Nippon Paper Papylia Co., Ltd. Water-dispersible paper
US9388532B2 (en) 2010-07-28 2016-07-12 Nippon Paper Papylia Co., Ltd. Water-dispersible paper

Also Published As

Publication number Publication date
NL6511529A (en) 1966-03-15
DE1546428B2 (en) 1973-03-22
DE1546428C3 (en) 1973-10-11
SE312066B (en) 1969-06-30
FI52232C (en) 1977-07-11
FI52232B (en) 1977-03-31
DE1546428A1 (en) 1969-07-24
CH442961A (en) 1967-08-31

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