DE1753903A1 - CELLULAR PLASTIC LAYER MATERIAL - Google Patents
CELLULAR PLASTIC LAYER MATERIALInfo
- Publication number
- DE1753903A1 DE1753903A1 DE19641753903 DE1753903A DE1753903A1 DE 1753903 A1 DE1753903 A1 DE 1753903A1 DE 19641753903 DE19641753903 DE 19641753903 DE 1753903 A DE1753903 A DE 1753903A DE 1753903 A1 DE1753903 A1 DE 1753903A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- plastic layer
- gas
- impermeable
- material according
- 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
Links
- 239000000463 material Substances 0.000 title claims description 47
- 229920003023 plastic Polymers 0.000 title claims description 42
- 239000004033 plastic Substances 0.000 title claims description 42
- 230000001413 cellular effect Effects 0.000 title claims description 16
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 10
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 10
- 239000012876 carrier material Substances 0.000 claims description 9
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 7
- 238000004049 embossing Methods 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims 5
- 238000005253 cladding Methods 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 .The invention relates to a cellular plastic layer material .
Während man Kunststoffe und insbesondere Schichtstoffe aus Kunststoffen für die verschiedenartigsten Anwendungen gebraucht, werden sie vor allem als Verpackungs- und Polstermaterial verwendet, da Kunststoffe im allgemeinen gegenüber Papiererzeugnissen zahlreiche Vorteile bieten. Beispielsweise sind Kunststoffe gegenüber den schädlichen Wirkungen von Feuchtigkeit und sonstigen Flüssigkeiten und Gasen, die Papier beschädigen oder zerstören, im allgemeinen beständig. Die mehr gebräuchlichen, zum Verpacken verwendeten Kunststoffe, wie beispielsweise Polyäthylen und Polyvinylchlorid, sind nicht ganz zufriedenstellend, weil sie für Feuchtigkeit, Wasserdampf und Gase nicht ganz undurchlässig sind. Einige der kostspieli-geren Kunststoffe, v/ie beispielsv/eise PoIy^->jjt vinylidenchlorid, sind für Feuchtigkeit, Wasserdampf und sonstige Gase im wesentlichen undurchlässig, wofür sie aber teurer sind und ein höheres Gewicht haben. Die Doppelung vonWhile plastics and especially laminates made of plastics are used for a wide variety of applications, They are mainly used as packaging and cushioning material, as plastics are generally opposed to Offer numerous advantages to paper products. For example, plastics are opposed to the harmful effects generally resistant to moisture and other liquids and gases that damage or destroy paper. The more common plastics used for packaging, such as polyethylene and polyvinyl chloride, are not entirely satisfactory because they are not entirely impermeable to moisture, water vapor and gases. Some of the more expensive plastics, v / ie for example PoIy ^ -> jjt vinylidene chloride, are essentially impermeable to moisture, water vapor and other gases, but what they do are more expensive and heavier. The duplication of
—2——2—
709819/0816709819/0816
BERLIN: TELEFON (O3O) 8312088
KABEL: PROPINDUS · TELEX 01 84O57BERLIN: TELEPHONE (O3O) 8312088
CABLE: PROPINDUS TELEX 01 84O57
MÜNCHEN: TELEFON (O8 11) 22 56 88 KABEL: PROPINDUS · TELEX OO 24244 MUNICH: TELEPHONE (O8 11) 22 56 88 CABLE: PROPINDUS TELEX OO 24244
Kunststoffen, v/ie Polyäthylen und Polyvinylchlorid, mit den weniger durchlässigen Kunststoffen, v/ie Polyvinylidenchlorid, ist bereits angeregt worden, jedoch machen die beim Zusammenwalzen oder Doppeln von Streifen oder Bahnen aus diesen Kunststoffen entstehenden Kosten ihre Verwendung für Verpackungszwecko im allgemeinen untragbar, wobei das entstehende Schichtmaterial natürlich verhältnismäßig dick und schwer ist.Plastics, v / ie polyethylene and polyvinyl chloride, with the less permeable plastics, v / ie polyvinylidene chloride, has already been suggested, but they do when rolling or doubling strips or sheets costs arising from these plastics make their use for packaging purposes generally prohibitive the resulting layer material is of course relatively thick and heavy.
Demzufolge ist es Aufgabe der Erfindung, ein neuartiges und verbessertes zelliges Kunststoffschichtmaterial anzugeben, das aus Kunststoffen, wie Polyäthylen, Polyvinylchlorid, Polypropylen, Nylon, Zelluloseacetat, Polystyrol, u. a. besteht, mit einem sehr dünnen Überzug aus einem weniger durchlässigen Kunststoff, v/ie Polyvinylidenchlorid, Fluorkohlenstoffen u. dgl., das verhältnismäßig billig ist und trotzdem solch erstrebenswerte Eigenschaften bes*-itzt, wie Feuchtigkeits- und Gasundurchlässigkeit sowie geringes Gewicht und ausreichende mechanische FestigkeiAccordingly, it is the object of the invention to provide a novel and improved cellular plastic layer material, made of plastics such as polyethylene, polyvinyl chloride, polypropylene, nylon, cellulose acetate, polystyrene, i.a. consists, with a very thin coating of a less permeable plastic, v / ie polyvinylidene chloride, Fluorocarbons and the like that are relatively cheap and yet have such desirable properties, such as moisture and gas impermeability as well as low weight and sufficient mechanical strength
t.t.
Diese Aufgabe wird erfindungsgemäß gelöst durch mindestens eine äußere Kunststoffschicht mit einer Vielzahl von über ihre Oberfläche mit geringem Zwischenraum voneinander getrennt verteilt angeordneten Prägungen, eine verhältnismäßig dünne, an der ersten Schicht haftende und die Prägungen verkleidende zweite Kunststoffschicht, wobei eine sich mit der zweiten Schicht deckende und mit ihr zum Bilden voneinander getrennter, abdichtend verschlossener Zellen an den Kanten jeder Prägung abdichtend verbundene, d. h. verschmolzene, dritte Schicht und eine sich mit der dritten Schicht deckende, an ihr haftende vierte Kunststoffschicht vorgesehen ist.This object is achieved according to the invention by at least one outer plastic layer with a plurality of over their surface with a small space between them distributed separately arranged embossings, a relatively thin, second plastic layer adhering to the first layer and covering the embossments, with a with the second layer covering and with it to form separate, sealingly closed cells sealingly connected at the edges of each embossing, d. H. fused, third layer and one with the third Layer covering, adhering to it fourth plastic layer is provided.
Zweckmäßige Ausführungsformen der Erfindung sind in den obigen Ansprüchen 2 bisl4 angegeben.Expedient embodiments of the invention are specified in claims 2 to 14 above.
-3-709819/0816 -3- 709819/0816
Eine ausführlichere Erläuterung der Erfindung wird in der nachstellenden Beschreibung unter Bezugnalune auf die Zeichnung gegeben. In dieser zeilen:A more detailed explanation of the invention is provided in subsequent description with reference to the drawing given. In these lines:
Fig. 1 bis 4 verschiedene Ausführungeformen von zelligomFig. 1 to 4 different embodiments of zelligom
Schichtmaterial genäi3 der Erfindung stark vergrößert in Schnitt.Layer material similar to the invention is strong enlarged in section.
In Fig» 1 bis 4 ist in jeden Fall das Grund- oder Trägermaterial mit B und das auf das Trägermaterial aufgebrachte Material mit I bezeichnet. Nach Fig. 1 hat man zweischichtige Schichtmaterialteile mit durch das Grund- oder Trägermaterial eingeschlossenem und geschützten undurchlässigen llaterial 1 verwendet« Das Grund- oder Trägermaterial kann natürlich ein beliebiges geeignetes Material, wie beispielsweise Polyvinylchlorid, Polystyrol ο„dgl. sein, während das undurchlässige llaterial eine Verbindung aus Polyvinylidenchlorid und Acrylonitril sein kann, obwohl zum Erreichen der gleichen Ziele auch andere geeignete Kunststoffe verwendet werden können. Es sei bemerkt, daß die Schichten I dort, wo sie zum Bilden der Zellen abdichtend miteinander verbunden, d.h. verschmolzen, werden, ein im -wesentlichen homogenes, die Zellen dauerhaft abdichtend verschließendes Bauteil bilden.In FIGS. 1 to 4, the base or carrier material is in any case with B and the material applied to the carrier material with I. According to Fig. 1, there are two layers Layer material parts with impermeable material enclosed and protected by the base or carrier material 1 used «The base or carrier material can of course be any suitable material, such as polyvinyl chloride, Polystyrene ο "like. be while the impermeable llmaterial can be a combination of polyvinylidene chloride and acrylonitrile, although to achieve the same goals as well other suitable plastics can be used. It should be noted that the layers I where they are used to form the Cells are sealingly connected to one another, i.e. fused, and the cells become permanent, an essentially homogeneous one Form sealing component.
Figo 2 zeigt eine andere Ausführungsforni der Erfindung, bei der dreischichtige Schichtmaterialteile verwendet werdeno Aus Figo 2 ist ersichtlich, daß in jedem der Schichtmaterialteile das undurchlässige Material I zwischen Außenschichten aus dem Grund- oder Trägermaterial eingeschlossen ist«Figo 2 shows another Ausführungsforni of the invention are used in the three-layer sheet material parts o o From Figure 2 it is seen that in each of the layer pieces of material the impermeable material is I sandwiched between outer layers of the base, or carrier material "
Fig. 3 und 4 zeigen andere Bauarten, die die Verwendung von zwei- und dreischichtigen Schichtmaterialteilen bedingen.Figs. 3 and 4 show other types that utilize Condition two- and three-layer layer material parts.
-4--4-
709819/0816709819/0816
BAD ORIGINALBATH ORIGINAL
Bei der Darstellung der Produkte nach Fig. 1 bis 4 ist die Dicke der einzelnen Schichten zum Zwecke der deutlicheren Darstellung übertrieben worden, wobei die Schichten aus Grundoder Trägermaterial eine Dicke in der Größenordnung von 0,025 bis 0,050 mm haben können, während der Überzug ais undurchlässigem Material eine Dicke in der Größenordnung von einem Zehntel des Grund- oder Trägermaterials haben kann und die Zellen jede beliebige Größe und Form aufweisen können.In the illustration of the products according to FIGS. 1 to 4, the thickness of the individual layers is for the sake of clarity Representation has been exaggerated, the layers of base or carrier material having a thickness on the order of 0.025 to 0.050 mm, while the coating ais impermeable material can have a thickness on the order of one tenth of the base or carrier material and the cells can be of any size and shape.
■·—·—·■ · - · - ·
Wb/je - 23 863Wb / each - 23 863
-.5—-.5-
709819/0816709819/0816
Claims (14)
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 true DE1753903A1 (en) | 1977-05-12 |
DE1753903B2 DE1753903B2 (en) | 1979-12-20 |
DE1753903C3 DE1753903C3 (en) | 1980-10-02 |
Family
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 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1753903C3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2845798A1 (en) * | 1977-10-20 | 1979-04-26 | Marion F Rudy | SUSPENSION DEVICE |
US4671982A (en) * | 1980-01-09 | 1987-06-09 | Rb Kunststoffpatent-Verwertungs Ag | Composite foil |
CN1326691C (en) * | 2001-11-28 | 2007-07-18 | 生命扫描有限公司 | Solution drying system |
Families Citing this family (1)
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 |
-
1964
- 1964-12-23 DE DE1753903A patent/DE1753903C3/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2845798A1 (en) * | 1977-10-20 | 1979-04-26 | Marion F Rudy | SUSPENSION DEVICE |
US4671982A (en) * | 1980-01-09 | 1987-06-09 | Rb Kunststoffpatent-Verwertungs Ag | Composite foil |
CN1326691C (en) * | 2001-11-28 | 2007-07-18 | 生命扫描有限公司 | Solution drying system |
Also Published As
Publication number | Publication date |
---|---|
DE1753903B2 (en) | 1979-12-20 |
DE1753903C3 (en) | 1980-10-02 |
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OGA | New person/name/address of the applicant | ||
BGA | New person/name/address of the applicant | ||
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |