DE202013000095U1 - Milled powder of polyethylene glycol flakes - Google Patents

Milled powder of polyethylene glycol flakes Download PDF

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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
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Germany
Prior art keywords
polyethylene glycol
peg
flakes
powder
milled powder
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Ceased
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DE201320000095
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German (de)
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Individual
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Priority to DE201320000095 priority Critical patent/DE202013000095U1/en
Publication of DE202013000095U1 publication Critical patent/DE202013000095U1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making 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)

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.
DE201320000095 2013-01-09 2013-01-09 Milled powder of polyethylene glycol flakes Ceased DE202013000095U1 (en)

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

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ID=47879062

Family Applications (1)

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DE201320000095 Ceased DE202013000095U1 (en) 2013-01-09 2013-01-09 Milled powder of polyethylene glycol flakes

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DE (1) DE202013000095U1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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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Effective date: 20130404

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Effective date: 20130519

R006 Appeal filed
R008 Case pending at federal patents court (fpc)
R011 All appeals rejected, refused or otherwise settled