GB1298121A - Method for making powdered thermoplastics - Google Patents
Method for making powdered thermoplasticsInfo
- 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
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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Nozzles (AREA)
- Glanulating (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2246571A (en) * | 1990-07-02 | 1992-02-05 | Courtaulds Coatings | Manufacture of powder coating compositions |
EP0488218A2 (en) * | 1990-11-27 | 1992-06-03 | United States Surgical Corporation | Process for preparing polymer particles |
US5147593A (en) * | 1990-01-10 | 1992-09-15 | Herbert Huttllin | Method to prepare extruded particles by breaking with an air stream |
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 |
WO2002030645A2 (en) * | 2000-10-12 | 2002-04-18 | Cognis Deutschland Gmbh & Co. Kg | 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)
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 |
-
1969
- 1969-04-24 DE DE1920777A patent/DE1920777C3/en not_active Expired
-
1970
- 1970-04-17 CH CH581170A patent/CH504941A/en not_active IP Right Cessation
- 1970-04-20 SE SE05409/70A patent/SE355521B/xx unknown
- 1970-04-22 CA CA080890A patent/CA922465A/en not_active Expired
- 1970-04-22 ZA ZA702690A patent/ZA702690B/en unknown
- 1970-04-23 BE BE749382D patent/BE749382A/en not_active IP Right Cessation
- 1970-04-23 AT AT371770A patent/AT311667B/en not_active IP Right Cessation
- 1970-04-23 GB GB09442/70A patent/GB1298121A/en not_active Expired
- 1970-04-24 NL NL7006033A patent/NL7006033A/xx unknown
- 1970-04-24 JP JP45034806A patent/JPS5122023B1/ja active Pending
- 1970-04-24 FR FR7015069A patent/FR2039455A1/fr active Pending
Cited By (12)
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 |
EP0488218A2 (en) * | 1990-11-27 | 1992-06-03 | United States Surgical Corporation | Process for preparing polymer particles |
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 |
WO2002030645A2 (en) * | 2000-10-12 | 2002-04-18 | Cognis Deutschland Gmbh & Co. Kg | Crystallized polyamide resin droplets with a narrow particle size distribution, the production and use thereof |
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 |
---|---|
CA922465A (en) | 1973-03-13 |
ZA702690B (en) | 1971-01-27 |
CH504941A (en) | 1971-03-31 |
JPS5122023B1 (en) | 1976-07-07 |
BE749382A (en) | 1970-10-23 |
DE1920777B2 (en) | 1978-01-05 |
DE1920777A1 (en) | 1970-11-12 |
SE355521B (en) | 1973-04-30 |
NL7006033A (en) | 1970-10-27 |
FR2039455A1 (en) | 1971-01-15 |
DE1920777C3 (en) | 1978-08-24 |
AT311667B (en) | 1973-11-26 |
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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 |