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GB1387233A - Fibril formation process - Google Patents

Fibril formation process

Info

Publication number
GB1387233A
GB1387233A GB1299473A GB1299473A GB1387233A GB 1387233 A GB1387233 A GB 1387233A GB 1299473 A GB1299473 A GB 1299473A GB 1299473 A GB1299473 A GB 1299473A GB 1387233 A GB1387233 A GB 1387233A
Authority
GB
United Kingdom
Prior art keywords
solution
solvent
fibrils
polyolefin
low density
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
GB1299473A
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 GB1387233A publication Critical patent/GB1387233A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/02—Preparation of spinning solutions
    • 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
    • D01D5/18—Formation of filaments, threads, or the like by means of rotating spinnerets
    • 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
    • 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

Landscapes

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

Abstract

1387233 Polyolefin fibres GULF RESEARCH & DEVELOPMENT CO 19 March 1973 [20 March 1972] 12994/73 Heading B5B [Also in Division D2] Fibrils for making synthetic paper are made by preparing a hot solution of an olefin polymer having an inherent viscosity of at least 3À5 (at 0À05 gm./100 ml. in decaline at 135‹ C.) in a solvent and incorporating 5 to 35% (by weight of polyolefin) of a low density ethylene homopolymer having a mol. wt. less than the polyolefin, shearing the solution, and precipitating the fibrils by cooling. The polyolefin may be linear polyethylene, and may form 0À25 to 5% by wt. of the solution. The low density polyethylene has a melt index above 1À0 (as determined by ASTM test D1238-65T, Condition E) and a density below 0À94. The solvent may be kerosene, mineral spirit, tetraline xylene or a chlorinated substance, but is preferably aliphatic and boils at 155‹ to 180‹ C. The hot solution is formed at 140‹ to 160‹ C. and has a viscosity of 50 to 30,000 cp. at 145‹ C. The solution may include antioxidants, e.g. Ionol, Santonox R, (Registered Trade Marks) or dilauryl thiodipropionate. The low density polyethylene may be added to the solution before or after heating, and before or after the other polyolefin. The solution is sheared and oriented in a centrifugal spinning apparatus and cooled by introducing chilled liquid, which may be the solvent or another non-solvent, so that a fibrous mass is precipitated. The mass is then passed through a wringer and then a beater where it is treated with, e.g. isopropanol, acetone, or hydrocarbon, to remove solvent. After cutting fibrils of 1 to 5 mm. length are produced. Preferably the fibrils contain up to 5% of residual solvent. The fibrils are then filtered and formed into sheets.
GB1299473A 1972-03-20 1973-03-19 Fibril formation process Expired GB1387233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23618972A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
GB1387233A true GB1387233A (en) 1975-03-12

Family

ID=22888500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1299473A Expired GB1387233A (en) 1972-03-20 1973-03-19 Fibril formation process

Country Status (5)

Country Link
JP (1) JPS496203A (en)
DE (1) DE2313701A1 (en)
FR (1) FR2176843B3 (en)
GB (1) GB1387233A (en)
IT (1) IT979922B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016202813A1 (en) * 2015-06-15 2016-12-22 Total Research & Technology Feluy Process for the preparation of polyolefin fibers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456133A1 (en) * 1979-05-10 1980-12-05 Solvay PROCESS FOR PRODUCING FIBRILLES BASED ON POLYOLEFINS AND FIBRILLES OBTAINED
JPS61614A (en) * 1984-06-12 1986-01-06 Kuraray Co Ltd Method of spinning of mixed spun yarn
US5217760A (en) * 1990-07-20 1993-06-08 Loctite Corporation Free radically curable formulations employing dithiolate catalysts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016202813A1 (en) * 2015-06-15 2016-12-22 Total Research & Technology Feluy Process for the preparation of polyolefin fibers
CN107750285A (en) * 2015-06-15 2018-03-02 道达尔研究技术弗吕公司 For the technique for preparing polyolefine fiber

Also Published As

Publication number Publication date
FR2176843A1 (en) 1973-11-02
JPS496203A (en) 1974-01-19
FR2176843B3 (en) 1976-03-12
IT979922B (en) 1974-09-30
DE2313701A1 (en) 1973-10-04

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees