EP1725328A1 - Procede pour produire un element a partir de matiere plastique expansee pu souple, et element ainsi produit - Google Patents

Procede pour produire un element a partir de matiere plastique expansee pu souple, et element ainsi produit

Info

Publication number
EP1725328A1
EP1725328A1 EP05716112A EP05716112A EP1725328A1 EP 1725328 A1 EP1725328 A1 EP 1725328A1 EP 05716112 A EP05716112 A EP 05716112A EP 05716112 A EP05716112 A EP 05716112A EP 1725328 A1 EP1725328 A1 EP 1725328A1
Authority
EP
European Patent Office
Prior art keywords
foam plastic
closed
cut
cells
polyurethane foam
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.)
Withdrawn
Application number
EP05716112A
Other languages
German (de)
English (en)
Inventor
Erich Kumpf
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.)
Bulling Walter
Wagner Guenter
Original Assignee
Bulling Walter
Wagner Guenter
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 Bulling Walter, Wagner Guenter filed Critical Bulling Walter
Publication of EP1725328A1 publication Critical patent/EP1725328A1/fr
Withdrawn legal-status Critical Current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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges

Definitions

  • the present invention relates to a method for producing contaminants, such as oils, liquid plastics, absorbent and yet floating or floating elements in cubes, disks, snippets or the like form made of flexible polyurethane foam plastic, according to the preamble of Claim 1, as well as suitable elements for absorbing contaminants, such as oils, liquid plastics and the like, which remain and float or float in cubes, disks, snippets or the like form made of flexible polyurethane foam plastic according to the preamble of claim 3.
  • contaminants such as oils, liquid plastics, absorbent and yet floating or floating elements in cubes, disks, snippets or the like form made of flexible polyurethane foam plastic
  • Soft elastic polyurethane foam plastics have a density or a specific weight that makes them float or float in the water.
  • the polyurethane foam plastics have a hydrophobic (water-repellent) character on the one hand and, on the other hand, if open-cell polyurethane foam plastics are used, an oleophilic or lipophilic (oil absorbing) character. For this reason, it is described in DE 100 58 270 AI that flexible, open-celled polyurethane foam plastics in disks, snippets or the like form are suitable for combating oil spills on the seas or on inland waters.
  • the features specified in claim 1 are provided in a method for producing such elements, and the features specified in claim 3 are provided in an element that remains buoyant or floatable for absorbing contaminants.
  • the dimensions of the cut surfaces having the open cells are a measure of the amount of contaminants to be taken up or sucked in, and that the rows or number of closed cells in the polyurethane foam plastic between the open cell cut surfaces is a measure of the existing buoyancy of the elements is.
  • the latter measure of buoyancy leads from a certain number of closed cells to no further increase in buoyancy necessary for the application, so that avoiding too much closed-cell material makes an optimization of the buoyancy seem reasonable.
  • the single figure shows a schematic, sectional illustration of a section through a flexible, elastic polyurethane foam plastic with a closed-cell and open-cell portion according to a preferred exemplary embodiment of the present invention.
  • the polyurethane foam plastic element 11 shown in the drawing is cut out of a block 10 from a soft, elastic, closed-cell polyurethane foam plastic and, due to its hydrophobic (water-repellent) character on the one hand and its oleophilic or lipophilic (oil-absorbing) character on the other hand, is used for absorption or absorption of contaminants floating on a body of water, such as oils, liquid plastics or the like, the ability of the element 11 to float on or float near the surface of the body of water in question, even with, for example, oils of relatively high density.
  • the block 10 is usually produced, for example, from a viscous polyol mass as a starting base as a closed-cell foam plastic.
  • Such flexible, closed-cell polyurethane foam plastic blocks 10 are relatively large or voluminous.
  • Such a soft, elastic, closed-cell polyurethane foam block 10 although floatable, has no non-lipophilic character.
  • the element 11 is cut out of the block 10 in such a way that the element 11 has, apart from a central closed-cell portion 12, an open-cell portion 10 arranged along the two cut surfaces 14 and 15, for example.
  • This open-cell portion 13 on the two approximately parallel cut surfaces 14 and 15 is due to the fact that when the element 11 is cut out of the closed-cell block 10, the closed cells of the block 10 lying in this cut plane are cut through and thus cut open cells. It goes without saying that this also applies to the circumferential end faces 16 and 17 and can also apply to the left transverse end face 18, which is not shown here as a cut face.
  • the cut element 11 is elongated rectangular in a flat manner and thus has an approximately plate-like shape, the dimensions of which are significantly smaller than those of the block 10.
  • the closed-cell block 10 becomes a multiplicity of elements 11 with closed-cell and open-cell portions 12, 13 cut. While the absorption capacity and capacity of, for example, oils of the element 11 depend on the open-cell portion 12 and thus on the size of the cut surfaces in question, the buoyancy of the element 11 depends on the size or the volume of the closed-cell portion 12.
  • the open cell portion 13 depends on the shape of the element 11 an optimization with regard to the size or the volume of the closed-cell portion is possible, which is such that an element 11 soaked with, for example, a relatively high-density oil still floats on the water surface or in salt or fresh water near the surface floats.
  • Such optimization is achieved in accordance with the shape of the element 11 when the cut surfaces 14 and 15 in the exemplary embodiment shown are a distance of approximately between greater than the simple and less than four times the diameter of the closed cells of polyurethane foam plastic. This has resulted in a preferred value of 2.5 times the diameter of the closed cells of the polyurethane foam.
  • the closed-cell portion 12 has the thickness of two rows of closed cells. This is only a possible value, since the closed cells are not in a row, but are offset from one another and next to one another due to their approximately spherical shape. In any case, it must be ensured that the closed-cell portion 12 consists of at least one layer of closed cells.
  • An optimal average diameter of the closed cells is in the range of approximately 4 mm to 6 mm.
  • the element 11 is described here as a plate with, for example, a dimension of approximately 60 mm ⁇ 100 mm ⁇ 12.5 mm, it goes without saying that the element is also designed in large or small format in the form of chips or chips or also in Disk shape or the like can be made.
  • the element 11 is cut as a cube with an edge length of preferably 25 mm x 25 mm. All six cube faces can preferably be provided with an open-cell portion 13.
  • the elements 11 can take up light heating oil to heavy oil and can be used on the sea, harbor basins, rivers, lakes, sewers, storage basins, sewage treatment plants and the like.
  • the elements are easy to handle during use and disposal on or from water surfaces.
  • Essential to the water-repellent, lipophilic, floating element 11 according to the invention is the balanced or optimized proportion (number and shape) of closed cells for buoyancy or buoyancy and the correspondingly optimized proportion (number and shape) of open cells for lipophilicity or Adsorption.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

La présente invention concerne un procédé pour produire des substances de contamination telles que des huiles, des plastiques liquides, des éléments absorbants mais cependant aptes à la flottaison ou à la suspension sous forme de dés, de tranches, de rondelles ou analogue, à partir de matière plastique expansée polyuréthane souple. A cet effet, une matière plastique expansée polyuréthane à cellules fermées réalisée par exemple sous la forme d'un bloc de grande taille, est découpée en forme de tranches, de rondelles ou analogue, de petite taille, de sorte que des cellules de matière plastique expansée ouvertes côté face de coupe sont formées, une ou plusieurs couches de cellules de matière plastique expansée fermées, restant entre lesdites cellules ouvertes.
EP05716112A 2004-03-16 2005-03-16 Procede pour produire un element a partir de matiere plastique expansee pu souple, et element ainsi produit Withdrawn EP1725328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410013827 DE102004013827A1 (de) 2004-03-16 2004-03-16 Verfahren zum Herstellen eines Elementes aus weichelastischem PU-Schaumkunststoff und danach hergestelltes Element
PCT/EP2005/002792 WO2005089932A1 (fr) 2004-03-16 2005-03-16 Procede pour produire un element a partir de matiere plastique expansee pu souple, et element ainsi produit

Publications (1)

Publication Number Publication Date
EP1725328A1 true EP1725328A1 (fr) 2006-11-29

Family

ID=34963813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05716112A Withdrawn EP1725328A1 (fr) 2004-03-16 2005-03-16 Procede pour produire un element a partir de matiere plastique expansee pu souple, et element ainsi produit

Country Status (3)

Country Link
EP (1) EP1725328A1 (fr)
DE (1) DE102004013827A1 (fr)
WO (1) WO2005089932A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005010806U1 (de) * 2005-07-08 2006-11-16 Bulling, Walter Sperrvorrichtung für Gewässer
DE202005016850U1 (de) * 2005-10-25 2007-03-01 Bulling, Walter Vorrichtung zum Verteilen von Kunststoffelementen auf einer Gewässeroberfläche
DE102007020910A1 (de) 2007-04-27 2008-11-06 Erich Kumpf Verfahren zum Herstellen eines Formstücks aus weichelastischem PU-Schaumkunststoff und danach hergestelltes Formstück zur Absorption von Kontaminationsstoffen im Wasser

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738268A1 (de) * 1977-08-25 1979-03-08 Basf Ag Hydrophobe polyurethanschaumstoffe zur oelabsorption
FR2605014A1 (fr) * 1986-10-09 1988-04-15 Inpal Expansion Sa Poudre absorbante et procede pour son utilisation notamment contre la pollution.
DE19707251A1 (de) * 1997-02-25 1998-08-27 Lucyna Budny Adsorptionsmittel, Verfahren und Vorrichtung zur Reinigung von ölverschmutzten Böden
DE19720485A1 (de) * 1997-05-16 1998-11-19 Lucyna Budny Verfahren zur Aufbereitung sowie Verwendung von aufbereiteten Kunststoffen als Adsorptionsmittel für Mineralöl und dergleichen
FR2816855B1 (fr) * 2000-11-23 2004-01-09 Patrice Stengel Procede de regeneration des sols pollues par les hydrocarbures a base de dechets provenant du recyclage des emballages expanses
DE10138099A1 (de) * 2001-08-03 2003-02-13 Erich Kumpf Weichelastischer offenzelliger Polyurethan-Schaumkunststoff

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005089932A1 *

Also Published As

Publication number Publication date
WO2005089932A1 (fr) 2005-09-29
DE102004013827A1 (de) 2005-10-06

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Inventor name: KUMPF, ERICHC/O E.ROLEFF GMBH & CO KG

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