DE1753903B2 - Cellular plastic layer material - Google Patents

Cellular plastic layer material

Info

Publication number
DE1753903B2
DE1753903B2 DE1753903A DE1753903A DE1753903B2 DE 1753903 B2 DE1753903 B2 DE 1753903B2 DE 1753903 A DE1753903 A DE 1753903A DE 1753903 A DE1753903 A DE 1753903A DE 1753903 B2 DE1753903 B2 DE 1753903B2
Authority
DE
Germany
Prior art keywords
layer
polyethylene
polyvinyl chloride
cellular plastic
plastic layer
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.)
Granted
Application number
DE1753903A
Other languages
German (de)
Other versions
DE1753903A1 (en
DE1753903C3 (en
Inventor
Marc Alfred Sarasota Fla. Chavannes (V.St.A.)
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.)
Individual
Original Assignee
Individual
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
Priority claimed from US33609763 external-priority patent/US3405020A/en
Application filed by Individual filed Critical Individual
Priority claimed from AU23461/67A external-priority patent/AU422483B2/en
Publication of DE1753903A1 publication Critical patent/DE1753903A1/en
Publication of DE1753903B2 publication Critical patent/DE1753903B2/en
Application granted granted Critical
Publication of DE1753903C3 publication Critical patent/DE1753903C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts
    • B29C51/22—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
    • B29C51/225—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis mounted on a vacuum drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft ein zelliges Kunststoffschichtmaterial aus einer ersten im wesentlichen aus Polyvinylchlorid oder Polyäthylen bestehenden Schicht mit einer Vielzahl von über ihre Oberfläche mit geringem Zwischenraum voneinander getrennt verteilt angeordneten Prägungen und einer zwischen den Prägungen mit der ersten Schicht verbundenen und die Prägungen verkleidenden zweiten aus im wesentlichen Polyvinylchlorid oder Polyäthylen bestehenden Schicht.The invention relates to a cellular plastic layer material from a first layer consisting essentially of polyvinyl chloride or polyethylene a plurality of spaced apart over their surface with a small gap Embossings and one connected to the first layer between the embossments and the embossments cladding second layer consisting essentially of polyvinyl chloride or polyethylene.

Ein derartiges Material ist bekannt. Bei ihm bestehen die beiden Schichten aus Polyäthylen oder Polyvinylchlorid. Diese Materialien sind für Feuchtigkeit, Wasserdampf und Gase nicht völlig undurchlässig, so daß es sich als erforderlich erwiesen hat, die Durchlässigkeit vor allem für Gase herabzusetzen.Such a material is known. With him, the two layers are made of polyethylene or polyvinyl chloride. These materials are not completely impermeable to moisture, water vapor and gases, so that it has been found necessary to reduce the permeability, especially for gases.

Es ist ferner bekannt (Technische Rundschau Nr. 40 vom 21.09.62, Seite 17), daß man gute Wasserdampfund Gasdichtigkeit bei in dieser Richtung verbesserungsbedürftigen Materialien durch Beschichtungen mit Mischpolymerisaten des Vinylidenchlorids erreichen kann. Als ein übliches Mischpolymerisat ist das Mischpolymerisat des Vinylidenchlorids mit Acrylnitril genannt. Es ist festgestellt, daß die Beschichtungen beim Verschweißen keine Schwierigkeiten bereiten.It is also known (Technische Rundschau No. 40 of 09/21/62, page 17) that you can get good water vapor Gas tightness in materials in need of improvement in this direction through coatings with Copolymers of vinylidene chloride can achieve. As a common copolymer, this is Copolymer of vinylidene chloride with acrylonitrile called. It is found that the coatings at Welding does not cause any difficulties.

Weiterhin ist bekannt (FR-PS 12 82 777), daß man Polyvinylidenchlorid auch im Zusammenhang mit zelligem Kunststoff Schichtmaterial des Aufbaus einsetzen kann, wie er einleitend oeschrieben ist.It is also known (FR-PS 12 82 777) that you can use polyvinylidene chloride in connection with cellular plastic layer material of the structure can be used, as described in the introduction.

Beim Einsatz des oben genannten Mischpolymerisats des Vinylidenchlorids im Zusammenhang mit dem eingangs beschriebenen zelligen Material haben sich aber folgende Probleme ergeben. Das Zusammenv/.alzen oder Doppeln von Streifen oder Bahnen aus diesen unterschiedlichen Materialien ist so aufwendig und dadurch so teuer, daß eine Verwendung dieser Streifen oder Bahnen für Verpackungszwecke im allgemeinen untragbar ist Außerdem ist solches zelliges Kunststoffschichtmaterial verhältnismäßig dick und schwer, was seine Verwendung als Verpackungsmaterial stark beeinträchtigt.When using the above-mentioned copolymer of vinylidene chloride in connection with the However, the cellular material described at the outset has resulted in the following problems. The salting together or doubling of strips or sheets of these different materials is so complex and so expensive that these strips or webs can generally be used for packaging purposes In addition, such cellular plastic sheet material is unsustainable relatively thick and heavy, which makes its use as a packaging material strong impaired.

j Der Erfindung liegt die Aufgabe zugrunde, ein zelliges Kunststoffschichtmaterial der eingangs genannten An zu schaffen, das gegen Wasserdampf und Gas weitgehend dicht ist und während seines Einsatzes diese seine Eigenschaft nicht verliert sowie verhältnismäßigj The invention is based on the object of a cellular To create plastic layer material of the type mentioned above, which is against water vapor and gas is largely tight and does not lose its property during its use and is proportionate

ίο billig ist. ίο is cheap.

Eine erste Lösung dieser Aufgabe sieht gemäß der Erfindung vor, daß bei dem eingangs beschriebenen Kunststoffschichtmaterial beide Schichten innen einen Oberzug aus einem Mischpolymer aus Vinylidenchlorid und Acrylnitril aufweisen.A first solution to this problem provides, according to the invention, that in the case of the initially described Plastic layer material both layers inside a cover made of a mixed polymer of vinylidene chloride and acrylonitrile.

Durch diese Ausgestaltung des Materials ist erreicht, daß der nicht außenliegende wasserdampf- und gasdichte Überzug einerseits gegen äußere Einwirkungen geschützt ist und bestimmte Metalle oder sonstige Werkstoffe nicht angreifen kann, andererseits das Verschweißen gleicher Schichtmaterialien in den Verbindungsbereichen zwischen den Zellen sichergestellt ist, wodurch eine optimale dichte Verschweißung erzielt wird. Der im Verhältnis zu den äußeren Schichten sehr dünne dichtende Überzug bewirkt außerdem, daß das zellige Kunststoffschichtmaterial mit einem entsprechenden Papiererzeugnis preislich konkurrieren kann.
Eine zweite Lösung der Aufgabe sieht gemäß der Erfindung vor, daß bei einem Kunststoffschichtmaterial der eingangs beschriebenen Art beide Schichten aus zwei Folien und einer zwischen diesen angeordneten Zwischenschicht aus einem Mischpolymer aus Vinylidenchlorid und Acrylnitril bestehen.This configuration of the material ensures that the non-external, water-vapor- and gas-tight coating is on the one hand protected against external influences and cannot attack certain metals or other materials, and on the other hand the welding of the same layer materials in the connecting areas between the cells is ensured, thereby ensuring optimal tight weld is achieved. The sealing coating, which is very thin in relation to the outer layers, also means that the cellular plastic layer material can compete in terms of price with a corresponding paper product.
According to the invention, a second solution to the problem provides that, in the case of a plastic layer material of the type described above, both layers consist of two foils and an intermediate layer arranged between them made of a mixed polymer of vinylidene chloride and acrylonitrile.

Durch diesen Vorschlag ist erreicht, daß ebenso wie bei der ersten Lösung, der die Wasserdampf und Gasdichtigkeit gewährleistende Überzug sich nicht an der Außenseite der beiden Schichten bzw. hier der beiden Folien befindet. Dadurch, daß der gasdichteBy this proposal it is achieved that, as with the first solution, the water vapor and The coating ensuring gas tightness is not on the outside of the two layers or here the two slides. Because the gas-tight

Überzug nicht nur außen sondern auch innen von der aus weniger kostspieligem Material hergestellten äußeren Deckschicht eingeschlossen ist, ist eine verstärkte Ausführungsform des zelligen Kunststoffschichtmaterials sichergestellt, ohne daß die Kosten für ihre Herstellung wesentlich höher als bei der ersten Ausführungsform sind.Coating not only on the outside but also on the inside of the one made of less expensive material outer cover layer is included is a reinforced embodiment of the cellular plastic sheet material ensured without the cost of their production being much higher than the first Embodiment are.

Die vorgeschlagenen Kunststoffschich'materialien lassen sich in einfacher Weise nach dem Verfahren herstellen, das mit dem deutschen Patent 15 46 867 geschützt und in der zugehörigen Patentschrift beschrieben ist. Danach wird folgendermaßen bei der Herstellung vorgegangen:The proposed plastic layer materials can be easily processed according to the method Manufacture, which is protected by the German patent 15 46 867 and described in the associated patent specification is. Then proceed as follows during production:

Ein Überzug aus einem Mischpolymerisat des Vinylidenchlorids mit Acrylnitril wird mittels einer Gravurwalze (Tiefdruck-Formzylinder) gleichmäßig auf eine im wesentlichen aus Polyvinylchlorid oder Polyäthylen bestehende Schicht aufgetragen. Diese wird dann um eine beheizte Trommel geführt, wobei die Temperatur mindestens eines Teils der Dicke der Schicht auf einem unterhalb ihrer Schmelztemperatur liegenden Wert gehalten wird. Die Schicht wird anschließend während ihres Umlaufs um die Trommel auf ihrer beschichteten Seite mit Heißluft getrocknet und zu einer Vorratsrolle geführt.A coating of a copolymer of vinylidene chloride with acrylonitrile is made by means of a Gravure roller (gravure forme cylinder) evenly on a substantially made of polyvinyl chloride or polyethylene existing layer applied. This is then passed around a heated drum, the Temperature of at least part of the thickness of the layer at a temperature below its melting temperature value is maintained. The layer is then as it rotates around the drum dried on their coated side with hot air and fed to a supply roll.

In der Zeichnung sind beispielsweise zwei Ausführungsformen des Erfindungsgegenstandes dargestellt.In the drawing, for example, are two embodiments of the subject matter of the invention.

Nach F i g. 1 hat man eine erste und zweite Schicht B mit jeweils innenliegendem, von ihnen eingeschlosse-According to FIG. 1 you have a first and second layer B , each with an inner, enclosed by them-

3 43 4

nem und geschütztem undurchlässigem Überzug / homogen und verschließen die Zellen dauerhaftnem and protected impermeable coating / homogeneous and permanently seal the cells

verwendet Die Schichten B bestehen aus Polyvinylchlo- abdichtend.used The layers B consist of polyvinylchlo- sealing.

rid oder Polyäthylen, während der Überzug /ein Fig.2 zeigt eine andere Ausführungsform derrid or polyethylene, while the cover / a Fig.2 shows another embodiment of the

Mischpolymerisat aus Polyvinylidenchlorid und Acrylni- Erfindung, bei der zwei Folien verwendet werden. AusMixed polymer of polyvinylidene chloride and acrylni- invention, in which two foils are used. the end

iril ist. Die Überzüge / sind dort, wo sie miteinander 5 F i g. 2 ist ersichtlich, daß in jeder Folie der Überzug /iril is. The coatings / are where they fit together 5 F i g. 2 it can be seen that the coating /

verbunden, d.h. verschmolzen, sind, im wesentlichen Zwischenschichten B eingeschlossen istconnected, ie fused, essentially intermediate layers B is included

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: 1. Zelliges Kunsistoffschichtmaterial aus einer ersten im wesentlichen aus Polyvinylchlorid oder Polyäthylen bestehenden Schicht mit einer Vielzahl von über ihre Oberfläche mit geringem Zwischenraum voneinander getrennt verteilt angeordneten Prägungen und einer zwischen den Prägungen mit der ersten Schicht verbundenen und die Prägungen verkleidenden zweiten aus im wesentlichen Polyvinylchlorid oder Polyäthylen bestehenden Schicht, dadurch gekennzeichnet, daß beide Schichten innen einen Überzug aus einem Mischpolymer aus Vinylidenchlorid und Acrylnitril aufweisen. 1. Cellular plastic layer material consisting of a first essentially made of polyvinyl chloride or Polyethylene existing layer with a multitude of closely spaced across its surface embossings arranged separated from each other and one between the embossings with the first layer connected and the embossing clad the second made essentially of polyvinyl chloride or polyethylene layer, characterized in that both Layers inside have a coating of a mixed polymer of vinylidene chloride and acrylonitrile. 2. Zelliges Kunststoffschichtmaterial aus einer ersten im wesentlichen aus Polyvinylchlorid oder Polyäthylen bestehenden Schient mit einer Vielzahl von über ihre Oberfläche mit geringem Zwischenraum voneinander getrennt verteilt angeordneten Prägungen und einer zwischen den Prägungen mit der ersten Schicht verbundenen und die Prägungen verkleidenden zweiten aus im wesentlichen Poilyvinylchlorid oder Polyäthylen bestehenden Schicht, dadurch gekennzeichnet, daß beide Schichten aus zwei Folien und einer zwischen diesen angeordneten Zwischenschicht aus einem Mischpolymer aus Vinylidenchlorid und Acrylnitril bestehen.2. Cellular plastic layer material consisting of a first essentially made of polyvinyl chloride or Polyethylene existing rail with a variety of narrowly spaced across its surface embossings arranged separated from each other and one between the embossings with the first layer, which is connected to the first layer and covers the embossments, is made of essentially polyvinyl chloride or polyethylene consisting layer, characterized in that both layers are made of two films and an intermediate layer made of a mixed polymer arranged between them Vinylidene chloride and acrylonitrile are made.
DE1753903A 1963-12-26 1964-12-23 Cellular plastic layer material Expired DE1753903C3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US33609763 US3405020A (en) 1963-12-26 1963-12-26 Method and apparatus for the manufacture of plastic laminates and cellular materials
DE1546867 1964-12-23
AU23461/67A AU422483B2 (en) 1963-12-26 1967-06-21 Method and apparatus forthe manufacture of cellular materials andthe resultant products
US73396568A 1968-06-03 1968-06-03

Publications (3)

Publication Number Publication Date
DE1753903A1 DE1753903A1 (en) 1977-05-12
DE1753903B2 true DE1753903B2 (en) 1979-12-20
DE1753903C3 DE1753903C3 (en) 1980-10-02

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ID=27422747

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1753903A Expired DE1753903C3 (en) 1963-12-26 1964-12-23 Cellular plastic layer material

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DE (1) DE1753903C3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000516A1 (en) * 1980-01-09 1981-07-16 Roland Dipl.-Kfm. 7022 Leinfelden-Echterdingen Belz COMPOSITE FILM, ESPECIALLY TOILET SEAT PAD, AND METHOD AND DEVICE FOR THEIR PRODUCTION

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910902B2 (en) * 1977-10-20 1984-03-12 マリオン・エフ・ルデイ Elastomeric cushion devices for products and objects
DE3126979A1 (en) * 1980-01-09 1982-09-30 Roland Dipl.-Kfm. 7022 Leinfelden-Echterdingen Belz COMPOSITE FILM
US6749887B1 (en) * 2001-11-28 2004-06-15 Lifescan, Inc. Solution drying system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000516A1 (en) * 1980-01-09 1981-07-16 Roland Dipl.-Kfm. 7022 Leinfelden-Echterdingen Belz COMPOSITE FILM, ESPECIALLY TOILET SEAT PAD, AND METHOD AND DEVICE FOR THEIR PRODUCTION

Also Published As

Publication number Publication date
DE1753903A1 (en) 1977-05-12
DE1753903C3 (en) 1980-10-02

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