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GB1298121A - Method for making powdered thermoplastics - Google Patents

Method for making powdered thermoplastics

Info

Publication number
GB1298121A
GB1298121A GB09442/70A GB1944270A GB1298121A GB 1298121 A GB1298121 A GB 1298121A GB 09442/70 A GB09442/70 A GB 09442/70A GB 1944270 A GB1944270 A GB 1944270A GB 1298121 A GB1298121 A GB 1298121A
Authority
GB
United Kingdom
Prior art keywords
tube
guided
polyethylene
degrees
angle
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
GB09442/70A
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
Badische Anilin and Sodafabrik AG
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, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1298121A publication Critical patent/GB1298121A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7457—Mixing heads without moving stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B2009/125—Micropellets, microgranules, microparticles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Nozzles (AREA)
  • Glanulating (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1298121 Thermoplastics powders BADISCHE ANILIN- & SODA-FABRIK AG 23 April 1970 [24 April 1969] 19442/70 Headings C3P and C3R [Also in Division B2] A method of making powdered thermoplasts comprises extruding a melt of the thermoplast at 5 to 300 atmospheres and a nozzle speed of 0À2 to 4 m./s. in an annular flow which tapers at a cone angle of 5 to 40 degrees and has an angle of twist of 0 to 60 degrees to form a tube of internal diameter 1 to 30 mm and a wall thickness of 0À2 to 3 mm, and atomizing the extruded tube with 0À5 to 20 kg. per kg. of melt of a gas at 4 to 200 atmospheres, 20‹ to 350‹ C. and a speed of 200 to 700 m./s., the atomizing gas being divided into two streams in a ratio of 1 : 3 to 3 : 1, one stream being guided so as to act on the inside of the molten tube while the outer surface thereof is guided over a distance of 2 to 8 mm., the other stream, which has a thickness of 0À3 to 5 mm, then being guided coaxially with the molten tube so as to impinge thereon at an angle of 15 to 70 degrees to the tube axis, the total gas being guided virtually parallel to the tube axis for a further 1 to 6 mm. Examples describe the atomization of (1-8, 12-14 and 16-20) polyethylene, (21) ethylene vinyl acetate copolymer and (22) ethylene/ n-butyl acrylate copolymer; and compositions comprising (9 and 10) polyethylene and titanium dioxide, (11) polyethylene and carbon black, and (15) polycaprolactam and glass fibres.
GB09442/70A 1969-04-24 1970-04-23 Method for making powdered thermoplastics Expired GB1298121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1920777A DE1920777C3 (en) 1969-04-24 1969-04-24 Method and device for the production of thermoplastic powders

Publications (1)

Publication Number Publication Date
GB1298121A true GB1298121A (en) 1972-11-29

Family

ID=5732141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09442/70A Expired GB1298121A (en) 1969-04-24 1970-04-23 Method for making powdered thermoplastics

Country Status (11)

Country Link
JP (1) JPS5122023B1 (en)
AT (1) AT311667B (en)
BE (1) BE749382A (en)
CA (1) CA922465A (en)
CH (1) CH504941A (en)
DE (1) DE1920777C3 (en)
FR (1) FR2039455A1 (en)
GB (1) GB1298121A (en)
NL (1) NL7006033A (en)
SE (1) SE355521B (en)
ZA (1) ZA702690B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246571A (en) * 1990-07-02 1992-02-05 Courtaulds Coatings Manufacture of powder coating compositions
US5147593A (en) * 1990-01-10 1992-09-15 Herbert Huttllin Method to prepare extruded particles by breaking with an air stream
EP0488218B1 (en) * 1990-11-27 1997-07-09 United States Surgical Corporation Process for preparing polymer particles
GB2316022A (en) * 1996-02-16 1998-02-18 Fujisaki Electric Co Ltd Spray nozzle
US5845846A (en) * 1969-12-17 1998-12-08 Fujisaki Electric Co., Ltd. Spraying nozzle and method for ejecting liquid as fine particles
WO2002030645A3 (en) * 2000-10-12 2002-07-18 Cognis Deutschland Gmbh Crystallized polyamide resin droplets with a narrow particle size distribution, the production and use thereof
EP1930071A1 (en) * 2006-12-06 2008-06-11 ECKA Granulate GmbH & Ko. KG Method for producing particles from flowable material and atomisation equipment therefor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141423U (en) * 1976-04-16 1977-10-26
FR2460973A1 (en) * 1979-07-13 1981-01-30 Okhtinskoe Ob Plastpoli Homogeneous thermoplastic polymer powder prodn. - by atomising hollow cylinder-shaped melt with gas jet directed against internal surface
JP2014223603A (en) * 2013-05-15 2014-12-04 光弘 高橋 Production method of powder, and device therefor
JP6596250B2 (en) * 2015-07-22 2019-10-23 大陽日酸株式会社 Droplet production equipment
KR102615889B1 (en) * 2019-09-11 2023-12-20 (주)엘엑스하우시스 Thermoplasticity polymer particles and method for preparing the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845846A (en) * 1969-12-17 1998-12-08 Fujisaki Electric Co., Ltd. Spraying nozzle and method for ejecting liquid as fine particles
US5147593A (en) * 1990-01-10 1992-09-15 Herbert Huttllin Method to prepare extruded particles by breaking with an air stream
GB2246571A (en) * 1990-07-02 1992-02-05 Courtaulds Coatings Manufacture of powder coating compositions
GB2246571B (en) * 1990-07-02 1994-06-01 Courtaulds Coatings Powder coating compositions and process for the manufacture thereof
EP0488218B1 (en) * 1990-11-27 1997-07-09 United States Surgical Corporation Process for preparing polymer particles
GB2316022A (en) * 1996-02-16 1998-02-18 Fujisaki Electric Co Ltd Spray nozzle
GB2316022B (en) * 1996-02-16 2000-12-20 Fujisaki Electric Co Ltd Spraying nozzle and method for ejecting liquid as fine particles
WO2002030645A3 (en) * 2000-10-12 2002-07-18 Cognis Deutschland Gmbh Crystallized polyamide resin droplets with a narrow particle size distribution, the production and use thereof
EP1930071A1 (en) * 2006-12-06 2008-06-11 ECKA Granulate GmbH & Ko. KG Method for producing particles from flowable material and atomisation equipment therefor
WO2008067868A1 (en) * 2006-12-06 2008-06-12 Ecka Granulate Gmbh & Co. Kg Process for production of particles of free-flowing material and spraying unit therefor

Also Published As

Publication number Publication date
CH504941A (en) 1971-03-31
ZA702690B (en) 1971-01-27
NL7006033A (en) 1970-10-27
BE749382A (en) 1970-10-23
DE1920777A1 (en) 1970-11-12
SE355521B (en) 1973-04-30
JPS5122023B1 (en) 1976-07-07
DE1920777B2 (en) 1978-01-05
DE1920777C3 (en) 1978-08-24
FR2039455A1 (en) 1971-01-15
AT311667B (en) 1973-11-26
CA922465A (en) 1973-03-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years