GB820786A - Improvements in or relating to methods for making filter paper from fibrous materials - Google Patents

Improvements in or relating to methods for making filter paper from fibrous materials

Info

Publication number
GB820786A
GB820786A GB39244/56A GB3924456A GB820786A GB 820786 A GB820786 A GB 820786A GB 39244/56 A GB39244/56 A GB 39244/56A GB 3924456 A GB3924456 A GB 3924456A GB 820786 A GB820786 A GB 820786A
Authority
GB
United Kingdom
Prior art keywords
filter paper
paper
relating
methods
fibrous materials
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
GB39244/56A
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.)
HAROLD MALCOLM GORDON WILLIAMS
Portals Ltd
Original Assignee
HAROLD MALCOLM GORDON WILLIAMS
Portals 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 HAROLD MALCOLM GORDON WILLIAMS, Portals Ltd filed Critical HAROLD MALCOLM GORDON WILLIAMS
Publication of GB820786A publication Critical patent/GB820786A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/31739—Nylon type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2762—Coated or impregnated natural fiber fabric [e.g., cotton, wool, silk, linen, etc.]
    • Y10T442/277—Coated or impregnated cellulosic fiber fabric
    • Y10T442/2811—Coating or impregnation contains polyimide or polyamide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
    • Y10T442/2893—Coated or impregnated polyamide fiber fabric

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)

Abstract

820,786. Filter paper containing nylon &c. PORTALS Ltd., and WILLIAMS, H. M. G. Dec. 4, 1957 [Dec. 24, 1956], No. 39244/56. Class 96. Filter paper of high flexibility and high bursting strength is made from synthetic fibres, e.g. cut nylon, optionally with over 10% of rag or cellulosic fibres, a methyl methoxy derivative of nylon being added to the paper or to the paper pulp, e.g. at the beater, and the binder being made insoluble in alcohol by heating the paper, e.g. to 120‹ to 160‹ C. for half an hour. Specification 820,785 is referred to.
GB39244/56A 1956-08-23 1956-12-24 Improvements in or relating to methods for making filter paper from fibrous materials Expired GB820786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25844/56A GB820785A (en) 1956-08-23 1956-08-23 Improvements in or relating to methods of making webs of paper containing synthetic fibrous material

Publications (1)

Publication Number Publication Date
GB820786A true GB820786A (en) 1959-09-23

Family

ID=10234259

Family Applications (2)

Application Number Title Priority Date Filing Date
GB25844/56A Expired GB820785A (en) 1956-08-23 1956-08-23 Improvements in or relating to methods of making webs of paper containing synthetic fibrous material
GB39244/56A Expired GB820786A (en) 1956-08-23 1956-12-24 Improvements in or relating to methods for making filter paper from fibrous materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB25844/56A Expired GB820785A (en) 1956-08-23 1956-08-23 Improvements in or relating to methods of making webs of paper containing synthetic fibrous material

Country Status (4)

Country Link
US (1) US2983627A (en)
DE (1) DE1070491B (en)
FR (2) FR1181575A (en)
GB (2) GB820785A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB948750A (en) * 1960-09-01 1964-02-05 Schweizerische Viscose Improvements in the production of paper
US3054147A (en) * 1960-12-30 1962-09-18 Paul B Archibald Method for solvent-isostatic pressing
DE1206763B (en) * 1961-01-28 1965-12-09 Ornapress A G Process for decorating molded bodies
US3620797A (en) * 1969-01-14 1971-11-16 Dhj Ind Inc Impregnation of a nonwoven fabric
US4028457A (en) * 1973-04-16 1977-06-07 Domtar Limited Consolidation of dry formed webs
DE3814996A1 (en) * 1988-05-03 1989-11-16 Kast Casimir Formteile METHOD FOR PRODUCING A FIBER MAT

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL70708C (en) * 1941-03-01
US2581069A (en) * 1945-09-24 1952-01-01 Raybestos Manhattan Inc Apparatus for producing airlaid fibrous webs
US2496665A (en) * 1949-06-10 1950-02-07 William A Hermanson Composite transparent sheet
GB715932A (en) * 1952-09-23 1954-09-22 C H Dexter & Sons Inc Improvements in porous fibrous web material and method of making same
GB708622A (en) * 1950-07-27 1954-05-05 Ici Ltd Improvements in or relating to impregnated paper
US2714097A (en) * 1951-11-27 1955-07-26 Du Pont Aqueous dispersions of n-alkoxymethylpolyhexamethylene adipamides and their application
US2816851A (en) * 1956-07-27 1957-12-17 Hurlbut Paper Company Decorative laminate containing a transparent printed overlay sheet

Also Published As

Publication number Publication date
US2983627A (en) 1961-05-09
GB820785A (en) 1959-09-23
FR1181575A (en) 1959-06-17
FR1190722A (en) 1959-10-14
DE1070491B (en) 1959-12-03

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