IT202300008952A1 - METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS. - Google Patents
METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS. Download PDFInfo
- Publication number
- IT202300008952A1 IT202300008952A1 IT102023000008952A IT202300008952A IT202300008952A1 IT 202300008952 A1 IT202300008952 A1 IT 202300008952A1 IT 102023000008952 A IT102023000008952 A IT 102023000008952A IT 202300008952 A IT202300008952 A IT 202300008952A IT 202300008952 A1 IT202300008952 A1 IT 202300008952A1
- Authority
- IT
- Italy
- Prior art keywords
- plastic material
- composition
- insulation device
- sheet
- extrusion
- Prior art date
Links
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0633—LDPE, i.e. low density polyethylene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
DESCRIZIONE DESCRIPTION
a corredo di una domanda di brevetto per invenzione industriale avente per titolo: in support of a patent application for an industrial invention entitled:
?METODO DI PRODUZIONE DI UN DISPOSITIVO DI ISOLAMENTO PER PORTE?. ?METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS?.
TESTO DELLA DESCRIZIONE DESCRIPTION TEXT
La presente invenzione si riferisce ad un metodo di produzione di un dispositivo di isolamento per porte. The present invention relates to a method of manufacturing an insulation device for doors.
Come ? noto, una porta comprende un?anta destinata a chiudere un?apertura di accesso ad un ambiente disposta al di sopra di un pavimento. L?anta ha un bordo inferiore distanziato dal pavimento per evitare che il bordo inferiore dell?anta strisci sul pavimento durante il movimento della porta. Pertanto tra il bordo inferiore dell?anta e il pavimento si genera un?intercapedine di circa 2-4 mm che consente il passaggio di spifferi d?aria. As is known, a door comprises a leaf intended to close an access opening to a room located above a floor. The leaf has a lower edge spaced from the floor to prevent the lower edge of the leaf from scraping on the floor during the movement of the door. Therefore, between the lower edge of the leaf and the floor, a gap of approximately 2-4 mm is created which allows the passage of drafts of air.
Per potere isolare l?ambiente chiuso dalla porta ? noto applicare sul bordo inferiore dell?anta della porta un dispositivo di isolamento atto a tamponare tale intercapedine tra il bordo inferiore dell?anta e il pavimento ed atto a scorrere sul pavimento. In order to isolate the environment closed by the door, it is known to apply an insulation device to the lower edge of the door leaf, capable of plugging the gap between the lower edge of the door leaf and the floor and capable of sliding on the floor.
La Fig. 1 illustra un dispositivo di isolamento (101), secondo la tecnica nota, applicato sotto un bordo inferiore (201) di un?anta (200) di una porta, in modo da strisciare su un pavimento (300). Fig. 1 illustrates an isolation device (101), according to the known art, applied under a lower edge (201) of a door leaf (200), so as to slide on a floor (300).
Tale dispositivo di isolamento (102) comprende: This isolation device (102) comprises:
- un foglio (102) di polietilene, - a sheet (102) of polyethylene,
- due tubi (103) di polietilenate a bassa densit? che sono incollati sul foglio (102), - two low density polyethylene tubes (103) which are glued onto the sheet (102),
- un tessuto (104) in cotone o poliestere che ? accoppiato sotto il foglio (102). - a cotton or polyester fabric (104) which is coupled under the sheet (102).
I tubi (103) sono disposti sul foglio (102) paralleli tra loro e distanziati di una distanza pari allo spessore dell?anta (200) della porta, in modo che il dispositivo di isolamento (101) possa essere incastrato sotto il bordo inferiore (201) dell?anta della porta ed il tessuto (104) possa strisciare sul pavimento (300). The tubes (103) are arranged on the sheet (102) parallel to each other and spaced apart by a distance equal to the thickness of the door leaf (200), so that the insulation device (101) can be fitted under the lower edge (201) of the door leaf and the fabric (104) can slide on the floor (300).
Il foglio (101) ha uno spessore inferiore ad 1 mm; mentre il tessuto (104) ha uno spessore maggiore ad 1 mm, in modo che la somma dello spessore del foglio e lo spessore del tessuto sia pari all?intercapedine tra il pavimento (300) e il bordo inferiore (201) dell?anta. The sheet (101) has a thickness of less than 1 mm; while the fabric (104) has a thickness greater than 1 mm, so that the sum of the thickness of the sheet and the thickness of the fabric is equal to the gap between the floor (300) and the lower edge (201) of the door.
Il processo di produzione di un tale disposavo di isolamento (101) prevede almeno quattro fasi di lavorazione: The production process of such an isolation device (101) involves at least four processing steps:
- estrusione dei tubi (103), - tube extrusion (103),
- estrusione del foglio (102), - sheet extrusion (102),
- accoppiamento del foglio (102) al tessuto (104), mediante accoppiamento a caldo con colla, e - coupling of the sheet (102) to the fabric (104), by hot coupling with glue, and
- fissaggio dei tubi (103) al foglio (102) mediante incollaggio. - fixing the tubes (103) to the sheet (102) by gluing.
Pertanto un tale processo di produzione ? lungo, complesso e costoso. Therefore, such a production process is long, complex and expensive.
Bisogna considerare che in questo caso non si pu? produrre per estrusione un unico elemento monolitico che comprende il foglio (102) e i tubi (103), in quanto un tale elemento non potrebbe essere accoppiato al tessuto (104) per la presenza dei tubi (103), dato che la pressa utilizzata per l?accoppiamento non pu? esercitare una pressione uniforme su tuta la superficie del foglio per la presenza dei tubi. It must be considered that in this case it is not possible to produce by extrusion a single monolithic element comprising the sheet (102) and the tubes (103), as such an element could not be coupled to the fabric (104) due to the presence of the tubes (103), given that the press used for the coupling cannot exert uniform pressure on the entire surface of the sheet due to the presence of the tubes.
Inoltre il dispositivo di isolamento (101) secondo la tecnica nota non pu? essere riciclato o biodegradato, soprattutto per la presenza di colla utilizzata per fissare i tubi (103) sul foglio (102) e per accoppiare il tessuto (104) al foglio (102). Furthermore, the insulation device (101) according to the known technique cannot be recycled or biodegraded, especially due to the presence of glue used to fix the tubes (103) on the sheet (102) and to couple the fabric (104) to the sheet (102).
Come ? noto il mercato richiede prodotti ecologici che possono essere biodegradabili o quantomeno riciclabili. As is known, the market requires ecological products that can be biodegradable or at least recyclable.
Scopo della presente invenzione ? di eliminare gli inconvenienti della tecnica nota, fornendo un procedimento di produzione di un dispositivo di isolamento per porte che sia semplice, pratico ed economico. The purpose of the present invention is to eliminate the drawbacks of the prior art by providing a process for producing a door insulation device that is simple, practical and economical.
Altro scopo ? di fornire un tale procedimento che consenta di produrre di un dispositivo di isolamento per porte di tipo riciclabile e biodegradabile. Another aim is to provide such a process that allows the production of a recyclable and biodegradable door insulation device.
Questi scopi sono raggiunti in accordo all?invenzione con le caratteristiche dell?annessa rivendicazione indipendente 1. These objects are achieved in accordance with the invention with the features of the attached independent claim 1.
Realizzazioni vantaggiose dell?invenzione appaiono dalle rivendicazioni dipendenti. Advantageous embodiments of the invention appear from the dependent claims.
Ulteriori caratteristiche dell?invenzione appariranno pi? chiare dalla descrizione dettagliata che segue, riferita a una sua forma di realizzazione puramente esemplificativa e quindi non limitativa, illustrata nei disegni annessi, in cui: Further features of the invention will appear clearer from the detailed description that follows, referring to a purely exemplary and therefore non-limiting embodiment thereof, illustrated in the attached drawings, in which:
la Fig. 1 ? una vista in prospettiva illustrante un dispositivo di isolamento per porte secondo la tecnica nota applicato sotto il bordo inferiore di un?anta di una porta; Fig. 1 is a perspective view illustrating a prior art door insulation device applied under the lower edge of a door leaf;
la Fig. 2 ? una vista in esploso illustrante il dispositivo di isolamento per porte di Fig. 1; Fig. 2 is an exploded view illustrating the door isolation device of Fig. 1;
la Fig. 3 ? una vista in prospettiva del dispositivo di isolamento per porte ottenuto con il metodo secondo l?invenzione; Fig. 3 is a perspective view of the door insulation device obtained with the method according to the invention;
la Fig. 4 ? una vista in sezione trasversale del dispositivo di isolamento per porte di Fig. 3. Fig. 4 is a cross-sectional view of the door isolation device of Fig. 3.
Con l?ausilio delle Figg. 3 e 4 viene descritto il metodo di produzione del dispositivo di isolamento per porte secondo l?invenzione. With the aid of Figs. 3 and 4, the manufacturing method of the door insulation device according to the invention is described.
Il dispositivo di isolamento (1) comprende un elemento monolitico ottenuto per estrusione di materiale plastico espanso di tipo riciclabile e biodegradabile, senza la previsione di colle e tessuto accoppiato. The insulation device (1) comprises a monolithic element obtained by extrusion of recyclable and biodegradable expanded plastic material, without the need for glues or coupled fabric.
Il dispositivo di isolamento (1) comprende una porzione centrale (2) costituita da un foglio avente uno spessore (S) compreso tra 2 e 4 mm e due porzioni laterali (3) costituite da tubi aventi un diametro (D) compreso tra 20 e 30 mm, preferibilmente 25 mm. The insulation device (1) comprises a central portion (2) made of a sheet having a thickness (S) between 2 and 4 mm and two lateral portions (3) made of tubes having a diameter (D) between 20 and 30 mm, preferably 25 mm.
Il dispositivo di isolamento (1) ha una lunghezza ((L) compresa tra 800 e 1000 mm e una larghezza (W) compresa tra 90 e 130 mm. The isolation device (1) has a length ((L) between 800 and 1000 mm and a width (W) between 90 and 130 mm.
Per potere realizzare un elemento monolitico per estrusione ? stata studiata una particolare composizione del materiale plastico espanso che comprende polietilene a bassa densit? ed un agente espandente, quale ad esempio un gas espandente, quale butano. In order to create a monolithic element by extrusion, a particular composition of the expanded plastic material was studied which includes low density polyethylene and a blowing agent, such as an blowing gas such as butane.
La composizione comprende inoltre uno stabilizzante, quale monogliceride, in una percentuale peso compresa tra 1-3%, preferibilmente 2% rispetto al peso totale del materiale plastico. Lo stabilizzante ha la funzione di stabilizzare il materiale plastico espanso ed aiutare il processo di espansione. Infatti quando il materiale plastico viene espanso con gas, le bolle che si ottengono durante l?espansione non sono stabili e potranno collassare. The composition also includes a stabilizer, such as monoglyceride, in a weight percentage between 1-3%, preferably 2% with respect to the total weight of the plastic material. The stabilizer has the function of stabilizing the expanded plastic material and aiding the expansion process. In fact, when the plastic material is expanded with gas, the bubbles that are obtained during the expansion are not stable and may collapse.
La composizione comprende inoltre un additivo di biodegradazione, quale ad esempio un additivo organico, a base di microorganismi, in una percentuale peso compresa tra 0,5-2 % rispetto al peso totale del materiale plastico. The composition also includes a biodegradation additive, such as an organic additive, based on microorganisms, in a weight percentage between 0.5-2% with respect to the total weight of the plastic material.
L?additivo organico genera microorganismi per creare un biofilm che ricopre il dispositivo isolante in materiale plastico espanso. I microrganismi nel biofilm penetrano nel materiale plastico espanso ed espandono la struttura molecolare per fare spazio ai microorganismi. Inoltre tali microorganismi inviano segnali chimici per attrarre altri microorganismi nella struttura molecolare del materiale plastico espanso. Attraverso questo processo, i microorganismi rompono i legami chimici delle catene polimeriche a un ritmo accelerato. Quindi si ottiene una biodegradazione del dispositivo di isolamento dopo circa 5-6 anni. The organic additive generates microorganisms to create a biofilm that covers the foam insulation device. The microorganisms in the biofilm penetrate the foam and expand the molecular structure to make room for the microorganisms. These microorganisms also send chemical signals to attract other microorganisms into the molecular structure of the foam. Through this process, the microorganisms break the chemical bonds of the polymer chains at an accelerated rate. Therefore, the insulation device biodegrades after about 5-6 years.
Con riferimento a Fig. 5, tale composizione viene alimentatala in una tramoggia (40) di un estrusore (4) avente una vite di estrusione (41) disposta in un cilindro di estrusione (42) mantenuto ad una temperatura di 70-90 ?C, preferibilmente 80 ?C, mediante un sistema di riscaldamento (43). L?estrusore ha una testa di estrusione (5) avete un?apertura (50) con la sagoma del dispositivo di isolamento (1). With reference to Fig. 5, this composition is fed into a hopper (40) of an extruder (4) having an extrusion screw (41) arranged in an extrusion cylinder (42) maintained at a temperature of 70-90 °C, preferably 80 °C, by means of a heating system (43). The extruder has an extrusion head (5) having an opening (50) with the shape of the insulation device (1).
Con riferimento a Fig. 6, l?apertura (50) della testa di estrusione ha una fessura centrale (52) comunicante con due fori laterali (53). La fessura centrale (52) dell?apertura della testa di estrusione ? compatibile con le dimensioni della porzione centrale (2) del dispositivo di isolamento. I fori laterali (3) della testa di estrusione sono compatibili con le dimensioni delle porzioni laterali (3) del dispositivo di isolamento. Referring to Fig. 6, the opening (50) of the extrusion head has a central slot (52) communicating with two lateral holes (53). The central slot (52) of the opening of the extrusion head is compatible with the dimensions of the central portion (2) of the isolation device. The lateral holes (3) of the extrusion head are compatible with the dimensions of the lateral portions (3) of the isolation device.
Dall?apertura (50) della testa di estrusione esce una striscia continua (6) che viene tagliata da un dispositivo di taglio (7) in modo da ottenere il dispositivo di isolamento (1) con una lunghezza (L) compresa tra 800 e 1000 mm. La velocit? di estrusione ? di circa 7-9 secondi per ogni dispositivo di isolamento prodotto. From the opening (50) of the extrusion head a continuous strip (6) comes out and is cut by a cutting device (7) in order to obtain the insulation device (1) with a length (L) between 800 and 1000 mm. The extrusion speed is approximately 7-9 seconds for each insulation device produced.
In seguito a diverse prove sperimentali fatte su diversi tipi di porte e diversi tipi di pavimenti, ? stato appurato che la superficie inferiore della porzione centrale (2) del dispositivo di isolamento scorreva perfettamente sul pavimento, senza la necessit? di uno strato di rivestimento inferiore in tessuto. Following several experimental tests carried out on different types of doors and different types of floors, it was found that the lower surface of the central portion (2) of the isolation device slid perfectly on the floor, without the need for a lower fabric covering layer.
Per la produzione del dispositivo di isolamento (1) secondo l?invenzione con un?unica fase di estrusione, si ottiene un notevole risparmio energetico rispetto alla produzione del dispositivo di isolamento (101) secondo la tecnica nota che richiede quattro fasi diverse. For the production of the insulation device (1) according to the invention with a single extrusion phase, a significant energy saving is obtained compared to the production of the insulation device (101) according to the known technique which requires four different phases.
Inoltre il dispositivo di isolamento (1) secondo l?invenzione consente un risparmio di materiale rispetto al dispositivo di isolamento (101) secondo la tecnica nota, in quanto per il dispositivo di isolamento (1) secondo l?invenzione non ? necessario il rivestimento inferiore in tessuto. Furthermore, the insulation device (1) according to the invention allows for a saving of material compared to the insulation device (101) according to the known art, since the insulation device (1) according to the invention does not require the lower fabric covering.
Inoltre il dispositivo di isolamento (1) secondo l?invenzione ? totalmente in materiale plastico espanso, senza presenza di colle e tessuto e pu? essere riciclato tra i materiali plastici. Furthermore, the insulation device (1) according to the invention is entirely made of expanded plastic material, without the presence of glues and fabric and can be recycled among plastic materials.
Inoltre il dispositivo di isolamento (1) secondo l?invenzione, contenendo un additivo di biodegradazione ? un prodotto biodegradabile. Furthermore, the isolation device (1) according to the invention, containing a biodegradation additive, is a biodegradable product.
Alla presente forma di realizzazione dell'invenzione, possono essere apportate variazioni e modifiche equivalenti, alla portata di un tecnico del ramo, che rientrano comunque entro l'ambito dell'invenzione espresso dalle rivendicazioni annesse. Equivalent variations and modifications may be made to the present embodiment of the invention, within the reach of a person skilled in the art, which however fall within the scope of the invention expressed in the attached claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102023000008952A IT202300008952A1 (en) | 2023-05-05 | 2023-05-05 | METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102023000008952A IT202300008952A1 (en) | 2023-05-05 | 2023-05-05 | METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT202300008952A1 true IT202300008952A1 (en) | 2024-11-05 |
Family
ID=87418720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT102023000008952A IT202300008952A1 (en) | 2023-05-05 | 2023-05-05 | METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS. |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT202300008952A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066063A (en) * | 1975-06-25 | 1978-01-03 | Hoechst Aktiengesellschaft | Device for the transmission of solar energy to a liquid medium |
| JPS63233817A (en) * | 1987-03-23 | 1988-09-29 | Sekisui Jushi Co Ltd | Manufacture of cushioning packaging material |
| JPH0596603A (en) * | 1991-01-31 | 1993-04-20 | Sekisui Plastics Co Ltd | METHOD FOR PRODUCING FOAMED RESIN SHEET HAVING PROJECTS ON SURFACE AND DIE TYPE FOR THE SAME |
| US6228449B1 (en) * | 1994-01-31 | 2001-05-08 | 3M Innovative Properties Company | Sheet material |
| US20220266495A1 (en) * | 2019-08-12 | 2022-08-25 | 3M Innovative Properties Company | Extruding connected hollow strands |
-
2023
- 2023-05-05 IT IT102023000008952A patent/IT202300008952A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066063A (en) * | 1975-06-25 | 1978-01-03 | Hoechst Aktiengesellschaft | Device for the transmission of solar energy to a liquid medium |
| JPS63233817A (en) * | 1987-03-23 | 1988-09-29 | Sekisui Jushi Co Ltd | Manufacture of cushioning packaging material |
| JPH0596603A (en) * | 1991-01-31 | 1993-04-20 | Sekisui Plastics Co Ltd | METHOD FOR PRODUCING FOAMED RESIN SHEET HAVING PROJECTS ON SURFACE AND DIE TYPE FOR THE SAME |
| US6228449B1 (en) * | 1994-01-31 | 2001-05-08 | 3M Innovative Properties Company | Sheet material |
| US20220266495A1 (en) * | 2019-08-12 | 2022-08-25 | 3M Innovative Properties Company | Extruding connected hollow strands |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE38485T1 (en) | PROCESS FOR MANUFACTURING MULTILAYER PANELS. | |
| FI82637B (en) | FOERFARANDE FOER KONTINUERLIG TILLVERKNING AV PRODUKTER AV TERMOPLASTMATERIAL OCH ANORDNING FOER GENOMFOERFARANDE AV FOERFARANDET. | |
| DE60023510D1 (en) | PLASTIC OBJECTS WITH EMBEDDED PHASES | |
| DK1479842T3 (en) | Hollow section | |
| US20060260213A1 (en) | Pan flashing with sill wedge | |
| IT202300008952A1 (en) | METHOD OF MANUFACTURING AN ISOLATION DEVICE FOR DOORS. | |
| DE69711658D1 (en) | SELF-SUPPORTING COMPONENT FROM EXPANDED PLASTIC, IN PARTICULAR FOR THE PRODUCTION OF FLOOR PANELS AND BUILDING WALLS IN GENERAL | |
| CN201144517Y (en) | Wood-plastic plate | |
| CN201225075Y (en) | Fire-proof expansion seal strip | |
| ES350626A1 (en) | A METHOD OF PRODUCING A LAMINATED SPONGY THERMOPLASTIC MATERIAL SHEET. | |
| TW201711926A (en) | Method for manufacturing a right-angled pulp product | |
| CN107867014B (en) | Honeycomb core board with hexagonal structure and its forming method | |
| US8621811B2 (en) | Thermoplastic siding insulation | |
| EP0357765A1 (en) | A material, preferably in strip form, for use as wrapping material. | |
| CN205777213U (en) | A kind of Wood plastic wall board | |
| ES2178480T3 (en) | PROCEDURE FOR THE MANUFACTURE OF CELLULOSICAL FLAT SHEETS. | |
| ITRM20110015A1 (en) | BIODEGRADABLE COMPOSITE TAPE WITH TRANSPARENT WINDOWS. | |
| JPH06238783A (en) | Honeycomb sandwich structure panel material and method of manufacturing the same | |
| CN221646267U (en) | A wall panel installed on both sides | |
| CN207377059U (en) | A kind of floor edge strip | |
| KR200291497Y1 (en) | panel brim for furniture | |
| WO2024197272A3 (en) | Continuous roll molding of frangible cap strip | |
| AU5108598A (en) | Honeycomb paperboard top and bottom layers attaching techniques and procedure | |
| CN108979077A (en) | A kind of floor edge strip easy for installation | |
| MX2009013135A (en) | Paper products having solid support materials. |