GB1372116A - Fibril and a process for its manufacture - Google Patents

Fibril and a process for its manufacture

Info

Publication number
GB1372116A
GB1372116A GB4968172A GB4968172A GB1372116A GB 1372116 A GB1372116 A GB 1372116A GB 4968172 A GB4968172 A GB 4968172A GB 4968172 A GB4968172 A GB 4968172A GB 1372116 A GB1372116 A GB 1372116A
Authority
GB
United Kingdom
Prior art keywords
solvent
polymer
fibrils
paper
inlet
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
GB4968172A
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.)
Gulf Research and Development Co
Original Assignee
Gulf Research and Development Co
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 Gulf Research and Development Co filed Critical Gulf Research and Development Co
Publication of GB1372116A publication Critical patent/GB1372116A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/40—Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/11—Flash-spinning
    • 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
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/20—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres
    • D21H5/202—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres polyolefins

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1372116 Paper made from synthetic polymer fibrils GULF RESEARCH & DEVELOPMENT CO 27 Oct 1972 [29 Oct 1971] 49681/72 Heading D2B [Also in Division B5] A process for preparing polyolefin fibrils for use in papermaking comprises feeding a heated hydrocarbon solvent solution of a polyolefin having an inherent viscosity (defined in the Specification) of at least 3.5 to the inlet 80 of a centrifugal spinning device 22 while simultaneously cooling the periphery of the interior 84 of the device (e.g. by feeding non- solvent for the polymer at a temperature of -10‹C to 40‹C into the interior via inlets 10 and 112), removing the resultant solvent swollen fibrous mass through outlet 64, separating the polymer solvent from the fibrous mass by means of a wringer and/or filtration, beating the fibrous mass in a non-solvent for the polymer (e.g. - isopropanol) which is soluble in the hydrocarbon solvent to separate the mass into a plurality of fibrils containing preferably between 0.25% and 5% by weight of the hydrocarbon solvent and removing the fibrils from the non-solvent liquid by filtration. The centrifugal spinning device 22 comprises stationary cover plate 68 in which is formed the inlet 80 for the polymer solution, disc-like plates 86 and 100 rotatable at high speeds (e.g. 4,000 to 18,000 r.p.m.) via shaft 88, pulley 90 and belt 92, and flails 102 pivotally mounted on pins 104 between the plates 86 and 100 and the heated polymer solution is fed through the inlet 80 to contact the face of plate 86 at a point having a tangential velocity of 100 cm/sec. The hydrocarbon solvent preferably has a boiling range of 155‹-180‹C and the polymer is heated therein to a temperature of 140 to 160‹C. The coolant liquid used to cool the peripherary of the interior of the spinning device is preferably the same solvent used for dissolving the polymer. Where the subsequent use of the fibrils is for non-aqueous solution paper-making the beating non-solvent may be an aliphatic hydrocarbon. Examples relate to the preparation of fibrils of polyethylene and polypropylene and their conversion into paper sheets by slurrying the fibrils to the head box of a Noble and Wood machine and forming the sheets by conventional paper-making techniques.
GB4968172A 1971-10-29 1972-10-27 Fibril and a process for its manufacture Expired GB1372116A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19371671A 1971-10-29 1971-10-29

Publications (1)

Publication Number Publication Date
GB1372116A true GB1372116A (en) 1974-10-30

Family

ID=22714741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4968172A Expired GB1372116A (en) 1971-10-29 1972-10-27 Fibril and a process for its manufacture

Country Status (11)

Country Link
JP (1) JPS4850020A (en)
CA (1) CA1024708A (en)
DE (1) DE2252758A1 (en)
FI (1) FI54334C (en)
FR (1) FR2158006B1 (en)
GB (1) GB1372116A (en)
IT (1) IT966818B (en)
NL (1) NL7214608A (en)
NO (1) NO133815C (en)
SE (1) SE387373B (en)
SU (1) SU555861A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU76197A1 (en) 1976-11-12 1978-07-10
DE2720701C2 (en) * 1977-05-07 1985-05-02 Hughes Aircraft Co., Culver City, Calif. Process for the production of synthetic fibers from a non-crystalline polymer
DE102016115714A1 (en) 2016-08-24 2018-03-01 Schäfer E. Technik u. Sondermaschinen GmbH baffle reactor
DE102016120467A1 (en) * 2016-10-26 2018-04-26 Schäfer Elektrotechnik und Sondermaschinen GmbH Impact reactor for comminuting composite material and method for comminuting composite material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1601881A (en) * 1967-12-16 1970-09-21

Also Published As

Publication number Publication date
CA1024708A (en) 1978-01-24
SE387373B (en) 1976-09-06
FR2158006A1 (en) 1973-06-08
IT966818B (en) 1974-02-20
JPS4850020A (en) 1973-07-14
NO133815C (en) 1976-06-30
FR2158006B1 (en) 1976-08-20
DE2252758A1 (en) 1973-05-03
FI54334B (en) 1978-07-31
NL7214608A (en) 1973-05-02
FI54334C (en) 1978-11-10
NO133815B (en) 1976-03-22
SU555861A3 (en) 1977-04-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee