GB1435488A - Process for the production of fibrous polymer particles - Google Patents

Process for the production of fibrous polymer particles

Info

Publication number
GB1435488A
GB1435488A GB3590372A GB3590372A GB1435488A GB 1435488 A GB1435488 A GB 1435488A GB 3590372 A GB3590372 A GB 3590372A GB 3590372 A GB3590372 A GB 3590372A GB 1435488 A GB1435488 A GB 1435488A
Authority
GB
United Kingdom
Prior art keywords
solution
polymer particles
flow
fibrous polymer
rate
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
GB3590372A
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals 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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Priority to GB3590372A priority Critical patent/GB1435488A/en
Priority to NL7310440A priority patent/NL7310440A/xx
Priority to IT2727473A priority patent/IT998302B/en
Priority to FR7327933A priority patent/FR2194805B1/fr
Priority to DE19732339044 priority patent/DE2339044A1/en
Priority to JP8670173A priority patent/JPS4950212A/ja
Priority to BE134152A priority patent/BE803118A/en
Publication of GB1435488A publication Critical patent/GB1435488A/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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/04—Dry spinning methods
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
    • 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

Abstract

1435488 Fibrous polymer particles BP CHEMICALS INTERNATIONAL Ltd 23 July 1973 [1 Aug 1972] 35903/72 Heading B5B [Also in Division D2] Fibrous polymer particles are made by subjecting a flow of a crystallizable polymer to a fluid stream to produce an elongational stress in the solution and allowing the polymer to crystallize while subjected to the elongational stress and to form fibrous polymer particles. Preferred polymers are high density polyethylene and polypropylene, and specified solvents include cyclohexane, n-hexane, n- .heptane, n-pentane, isopentane, xylenes, benzene, toluene, methylene dichloride, methyl chloride and mixtures thereof. A 1 to 15% by weight solution of high density polyethylene in xylene or cyclohexane is preferred, having a solution viscosity of 10<SP>2</SP> to 10<SP>4</SP> poise, and which may contain fillers, pigments, surface-active agents, anti-statics, or other paper-making additives, and the rate of flow of the solution may be 0À5 m. to 200 m./sec. The fluid stream may be nitrogen, carbon dioxide, or steam, water or superheated water, and may impinge on the polymer at an angle not greater than 30 degrees. Thus it may be directed at the flow of solution 3 as the latter emerges from a nozzle 5 mounted coaxially inside a nozzle 10 carrying the fluid -stream. Suitably the fluid stream is at a temperature of 20‹ to 160‹ C., and its rate of flow at least 10 times the rate of flow of polymer solution when a gas is used and at least 3 times when a liquid is used. Particles so made may be of length 1 to 10 mm., with an average degree of crystallinity of at least 10%, preferably 25 to 100%. The fibrous polymer particles may be deposited in the form of a sheet, e.g. by laying down on a mesh grid under gravity or by their own inertia, or the fibres may be used to make an aqueous pulp from which sheets are formed on conventional paper-making machinery. In apparatus as shown in Fig. 2, the fibrous polymer particles are collected on a gauze and provision is made for recovery of the solvent.
GB3590372A 1972-08-01 1972-08-01 Process for the production of fibrous polymer particles Expired GB1435488A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB3590372A GB1435488A (en) 1972-08-01 1972-08-01 Process for the production of fibrous polymer particles
NL7310440A NL7310440A (en) 1972-08-01 1973-07-27
IT2727473A IT998302B (en) 1972-08-01 1973-07-30 PROCESS FOR THE PRODUCTION OF FIBROUS POLYMERIC PARTICLES
FR7327933A FR2194805B1 (en) 1972-08-01 1973-07-31
DE19732339044 DE2339044A1 (en) 1972-08-01 1973-08-01 PROCESS FOR THE PRODUCTION OF FIBROUS POLYMERIZED PARTICLES
JP8670173A JPS4950212A (en) 1972-08-01 1973-08-01
BE134152A BE803118A (en) 1972-08-01 1973-08-01 POLYMERIC FIBER PRODUCTION PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3590372A GB1435488A (en) 1972-08-01 1972-08-01 Process for the production of fibrous polymer particles

Publications (1)

Publication Number Publication Date
GB1435488A true GB1435488A (en) 1976-05-12

Family

ID=10382826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3590372A Expired GB1435488A (en) 1972-08-01 1972-08-01 Process for the production of fibrous polymer particles

Country Status (7)

Country Link
JP (1) JPS4950212A (en)
BE (1) BE803118A (en)
DE (1) DE2339044A1 (en)
FR (1) FR2194805B1 (en)
GB (1) GB1435488A (en)
IT (1) IT998302B (en)
NL (1) NL7310440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283186A (en) 1976-10-06 1981-08-11 Celanese Corporation Method of forming cigarette filter material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1001664B (en) * 1973-11-08 1976-04-30 Sir Soc Italiana Resine Spa MICROFIBROUS PRODUCT SUITABLE FOR ES SERE USED IN THE PRODUCTION OF SYNTHETIC CARDS AND RELATED PROCESS OF PREPARATION
IT1054323B (en) * 1975-11-11 1981-11-10 Montedison Spa PREPARATION PROCEDURE FOR FIBRILLE FOR PAPER FROM SOLUTIONS OR POLYPROPYLENE SPERSIONS IN N HEXANE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571457A (en) * 1950-10-23 1951-10-16 Ladisch Rolf Karl Method of spinning filaments
BE560130A (en) * 1956-08-28
NL296015A (en) * 1962-05-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283186A (en) 1976-10-06 1981-08-11 Celanese Corporation Method of forming cigarette filter material

Also Published As

Publication number Publication date
IT998302B (en) 1976-01-20
FR2194805B1 (en) 1977-02-25
DE2339044A1 (en) 1974-02-21
BE803118A (en) 1974-02-01
FR2194805A1 (en) 1974-03-01
NL7310440A (en) 1974-02-05
JPS4950212A (en) 1974-05-15

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Legal Events

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