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GB1477378A - Manufacture of olefin polymer fibrids - Google Patents

Manufacture of olefin polymer fibrids

Info

Publication number
GB1477378A
GB1477378A GB5485474A GB5485474A GB1477378A GB 1477378 A GB1477378 A GB 1477378A GB 5485474 A GB5485474 A GB 5485474A GB 5485474 A GB5485474 A GB 5485474A GB 1477378 A GB1477378 A GB 1477378A
Authority
GB
United Kingdom
Prior art keywords
olefin polymer
solvent
pentane
solution
fibrids
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
GB5485474A
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of GB1477378A publication Critical patent/GB1477378A/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
    • D01D5/11—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)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Artificial Filaments (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1477378 Making olefin polymer fibrids BASF AG 19 Dec 1974 [21 Dec 1973] 54854/74 Heading C3P Olefin polymer fibrids are made by dissolving an olefin polymer in an organic solvent under pressure and at a temperature which is above the boiling point of the solvent at standard pressure, and flashing the solution by passing it through an orifice into a space which is at a lower pressure, the solvent used, being pentane or a mixture containing at least sufficient pentane to cause the olefin polymer to separate in the form of discrete fibrids on flashing. Preferred solvents are naphtha cuts containing 5-50 wt. per cent pentane and mixtures of n-pentane and isopentane. The concentration of the original solution may be 10-25 wt. per cent and the dissolution may be carried out at 100-180‹ C. at 10-20 atmospheres. The space into which the solution is flashed may contain a precipitant or non-solvent for the polymer, which may be the same as the solvent used to form the solution (being a non-solvent at the lower pressure). The treatment of polyethylenes, and an ethylene/ n-butyl acrylate copolymer, is exemplified.
GB5485474A 1973-12-21 1974-12-19 Manufacture of olefin polymer fibrids Expired GB1477378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2363672A DE2363672C3 (en) 1973-12-21 1973-12-21 Process for the production of short fibers from low-pressure polyethylene and their use

Publications (1)

Publication Number Publication Date
GB1477378A true GB1477378A (en) 1977-06-22

Family

ID=5901457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5485474A Expired GB1477378A (en) 1973-12-21 1974-12-19 Manufacture of olefin polymer fibrids

Country Status (8)

Country Link
JP (1) JPS5094234A (en)
BE (1) BE823440A (en)
CA (1) CA1069264A (en)
DE (1) DE2363672C3 (en)
FR (1) FR2255400B3 (en)
GB (1) GB1477378A (en)
IT (1) IT1025794B (en)
SE (1) SE406332B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181794A (en) * 1978-08-28 1980-01-01 Gulf Oil Corporation Method for manufacture of olefin polymer fibrils

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK116229B (en) * 1957-06-11 1969-12-22 Du Pont Continuously extruded or spun filament product and process for its manufacture.
US3227664A (en) * 1961-12-07 1966-01-04 Du Pont Ultramicrocellular structures of crystalline organic polymer
US3081519A (en) * 1962-01-31 1963-03-19 Fibrillated strand
NL300881A (en) * 1962-11-23
US3904804A (en) * 1968-10-14 1975-09-09 Mitsubishi Rayon Co Polyolefin micro-flake aggregation useful for manufacturing synthetic papers and polyolefin synthetic papers obtainable therewith
FR1596107A (en) * 1968-12-13 1970-06-15
JPS4813722B1 (en) * 1970-07-14 1973-04-28
JPS4813723B1 (en) * 1970-07-16 1973-04-28
BE787033A (en) * 1971-08-06 1973-02-01 Solvay
BE787032A (en) * 1971-08-06 1973-02-01 Solvay
NL169760C (en) * 1972-04-22 1982-08-16 Stamicarbon PROCESS FOR PREPARING POLYMER FIBERS

Also Published As

Publication number Publication date
FR2255400A1 (en) 1975-07-18
CA1069264A (en) 1980-01-08
DE2363672C3 (en) 1982-08-05
DE2363672A1 (en) 1975-07-10
JPS5094234A (en) 1975-07-26
DE2363672B2 (en) 1975-10-30
IT1025794B (en) 1978-08-30
SE406332B (en) 1979-02-05
BE823440A (en) 1975-06-17
SE7416069L (en) 1975-06-23
FR2255400B3 (en) 1977-09-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee