DE202013000095U1 - Milled powder of polyethylene glycol flakes - Google Patents
Milled powder of polyethylene glycol flakes Download PDFInfo
- Publication number
- DE202013000095U1 DE202013000095U1 DE201320000095 DE202013000095U DE202013000095U1 DE 202013000095 U1 DE202013000095 U1 DE 202013000095U1 DE 201320000095 DE201320000095 DE 201320000095 DE 202013000095 U DE202013000095 U DE 202013000095U DE 202013000095 U1 DE202013000095 U1 DE 202013000095U1
- Authority
- DE
- Germany
- Prior art keywords
- polyethylene glycol
- peg
- flakes
- powder
- milled powder
- 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.)
- Ceased
Links
Classifications
-
- 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
- B29B9/02—Making granules by dividing preformed material
-
- 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
Abstract
Hauptanspruch 1.) Polyethylenglykol Pulver, dadurch gekennzeichnet, dass es aus PEG Flocken gemahlen wurde. Nebenansprüche 2.) Polyethylenglykol Pulver, dadurch gekennzeichnet, dass die Kornform unregelmässig ist. 3.) Polyethylenglykol Pulver, dadurch gekennzeichnet, dass die Kornverteilung < 0.2 mm bei max. 20% liegt und > 1.0 mm bei max. 5% liegt.Main claim 1.) Polyethylene glycol powder, characterized in that it was ground from PEG flakes. Nebenansprüche 2.) Polyethylene glycol powder, characterized in that the grain shape is irregular. 3.) Polyethylene glycol powder, characterized in that the particle size distribution <0.2 mm at max. 20% and> 1.0 mm at max. 5% lies.
Description
1.) Hintergrund der Erfindung1.) Background of the invention
Festes Polyethylenglykol (PEG) mit einer mittleren Molmasse von 1500–80000 ist ein chemisches Erzeugnis das viele Anwendungen hat. PEG wird in der Industrie als Bindemittel, Ausformhilfe, Komplexbildner aber auch als Pharmacie Wirkstoff eingesetzt. Alle PEG's sind wasserlöslich und haben je nach Molmasse verschiedene Schmelzpunkte. So hat z. b. PEG 1500 einen Schmelzpunkt von ca. 35°C und PEG 6000 einen Schmelzpunkt von ca. 65°C. Weit vor diesem Schmelzpunkt werden PEG Flakes plastisch.Solid polyethylene glycol (PEG) with an average molecular weight of 1500-80000 is a chemical product that has many uses. PEG is used in industry as a binder, forming aid, complexing agent but also as a pharmaceutic agent. All PEGs are water-soluble and have different melting points depending on the molecular weight. So z. b. PEG 1500 has a melting point of about 35 ° C and PEG 6000 has a melting point of about 65 ° C. Well before this melting point, PEG flakes become plastic.
Da die Industrie aber PEG als Flocken (Flakes) oder pulverförming zum Verarbeiten braucht habe ich die Erfindung gemacht Pulver aus PEG Flocken herzustellen.However, since the industry needs PEG as flakes or pulveriferous for processing, I have made the invention to produce powders of PEG flakes.
2.) Beschreibung Stand der Technik2.) Description of the prior art
Festes PEG wird bis zum heutigen Tage entweder als Flocken (Flakes) geliefert oder aber als Pulver welches in einem Sprühturm hergestellt wird. Die Herstellung von PEG Pulvern in einem Sprühturm ist vorallem energetisch sehr Aufwendig. Die Herstellung von 1000 kg PEG Pulver im Sprühturm verbraucht ca. 300 kw an Energie. Ebenso ist es sehr schwierig und aufwendig verschiedene Kornspectren in einem Sprühturm herzustellen. Die Kornform des im Sprühturm hergestellten PEG Pulvers ist fast sphärisch Rund bzw. kugelförmig oder tropfenförming. Diese Kornform hat eine sehr geringe spez. Oberfläche, was für einige industriellen Anwendungen, z. b. als Bindemittel, nicht optimal ist.Solid PEG is delivered to this day either as flakes or as a powder produced in a spray tower. The production of PEG powders in a spray tower is especially expensive in terms of energy. The production of 1000 kg of PEG powder in the spray tower consumes about 300 kw of energy. Likewise, it is very difficult and expensive to produce different Kornspectren in a spray tower. The grain shape of the PEG powder produced in the spray tower is almost spherical Round or spherical or drop-shaped. This grain shape has a very low spec. Surface, which for some industrial applications, eg. b. as a binder, is not optimal.
3.) Beschreibung der Erfindung3.) Description of the invention
Es wurde bisher, von Fachleuten, als nicht möglich erachtet, PEG Flocken aufgrund des niedrigen Schmelzpunktes und der Eigenschaft des plastisch werdens bei niedrigen Temperaturen, zu vermahlen.It has hitherto not been considered possible, by those skilled in the art, to grind PEG flakes because of the low melting point and plasticizing properties at low temperatures.
Aufgrund langwieriger Versuche und Einsatz von speziell dafür gebauten Mühlen und Fördergeräte ist es mir gelungen PEG Flakes, wirtschaftlich sinnvoll zu Pulver zu vermahlen.Due to lengthy trials and the use of specially built mills and conveyors, I have succeeded PEG flakes, economically meaning to powder to grind.
Der Energieeinsatz beim vermahlen von 1000 kg PEG Flocken zu Pulver beträgt ca. 30 kw. Weiterhin ist anzumerken, dass die Kornform nach dem vermahlen eine amorphe (unregelmässige) Form ausweist, was zu einer wesentlich grösseren spez. Oberfläche führt.The energy input when grinding 1000 kg PEG flakes into powder is approx. 30 kw. It should also be noted that the grain shape after grinding identifies an amorphous (irregular) shape, resulting in a much larger spec. Surface leads.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201320000095 DE202013000095U1 (en) | 2013-01-09 | 2013-01-09 | Milled powder of polyethylene glycol flakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201320000095 DE202013000095U1 (en) | 2013-01-09 | 2013-01-09 | Milled powder of polyethylene glycol flakes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202013000095U1 true DE202013000095U1 (en) | 2013-02-07 |
Family
ID=47879062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201320000095 Ceased DE202013000095U1 (en) | 2013-01-09 | 2013-01-09 | Milled powder of polyethylene glycol flakes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202013000095U1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5876707A (en) * | 1995-07-07 | 1999-03-02 | United Technologies Corporation | Extended-release chemical formulation in tablet form for urine pretreatment |
DE102004006670A1 (en) * | 2004-02-11 | 2005-09-01 | Clariant Gmbh | Solid powdery polyethylene glycol with bimodal particle size distribution, its preparation and its use |
US20050228187A1 (en) * | 2004-03-05 | 2005-10-13 | Marie-Pierre Faure | Process for the preparation of activated polyethylene glycols |
-
2013
- 2013-01-09 DE DE201320000095 patent/DE202013000095U1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5876707A (en) * | 1995-07-07 | 1999-03-02 | United Technologies Corporation | Extended-release chemical formulation in tablet form for urine pretreatment |
DE102004006670A1 (en) * | 2004-02-11 | 2005-09-01 | Clariant Gmbh | Solid powdery polyethylene glycol with bimodal particle size distribution, its preparation and its use |
US20050228187A1 (en) * | 2004-03-05 | 2005-10-13 | Marie-Pierre Faure | Process for the preparation of activated polyethylene glycols |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R207 | Utility model specification |
Effective date: 20130404 |
|
R165 | Request for cancellation or ruling filed | ||
R168 | Utility model cancelled |
Effective date: 20130519 |
|
R006 | Appeal filed | ||
R008 | Case pending at federal patents court (fpc) | ||
R011 | All appeals rejected, refused or otherwise settled |