NO326194B1 - Procedure for re-stopping and stopping form for re-stopping - Google Patents

Procedure for re-stopping and stopping form for re-stopping Download PDF

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Publication number
NO326194B1
NO326194B1 NO20055035A NO20055035A NO326194B1 NO 326194 B1 NO326194 B1 NO 326194B1 NO 20055035 A NO20055035 A NO 20055035A NO 20055035 A NO20055035 A NO 20055035A NO 326194 B1 NO326194 B1 NO 326194B1
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NO
Norway
Prior art keywords
mold
foam
pieces
pushed
rebond
Prior art date
Application number
NO20055035A
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Norwegian (no)
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NO20055035D0 (en
NO20055035L (en
Inventor
Trond Kvelstad
Original Assignee
Ekornes Asa
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 Ekornes Asa filed Critical Ekornes Asa
Priority to NO20055035A priority Critical patent/NO326194B1/en
Publication of NO20055035D0 publication Critical patent/NO20055035D0/en
Priority to PCT/NO2006/000382 priority patent/WO2007049973A2/en
Publication of NO20055035L publication Critical patent/NO20055035L/en
Publication of NO326194B1 publication Critical patent/NO326194B1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0446Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by increasing the density locally by compressing part of the foam while still in the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10Applying counter-pressure during expanding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1214Anchoring by foaming into a preformed part, e.g. by penetrating through holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/3415Heating or cooling
    • B29C44/3426Heating by introducing steam in the mould

Abstract

Foreliggende oppfinnelse vedrører en fremgangsmåte ved rebondstøping hvori revet skum med lim føres inn i en støpeform, særpreget ved at volumet av reduseres før damp føres inn i kassen for å herde limet. Oppfinnelsen vedrører også en støpeboks for rebondstøping og produkter fremstilt ved denne.The present invention relates to a method for rebond molding in which shredded foam with glue is fed into a mould, characterized by the fact that the volume of is reduced before steam is fed into the box to harden the glue. The invention also relates to a casting box for rebond casting and products produced by this.

Description

Foreliggende oppfinnelse vedrører en fremgangsmåte ved rebondstøping hvori revet skum med lim føres inn i en støpeform samt en støpeform for rebondstøping av skumbiter. The present invention relates to a method for rebond molding in which torn foam with glue is fed into a mold and a mold for rebond molding of foam pieces.

Bakgrunn for oppfinnelsen Background for the invention

I produksjon av møbler benyttes ofte skumprodukter slik som polyuretan (PU) til polstring av møbeldelene, enten uteluk-ket eller i kombinasjon med andre materialer eller komfort-givende deler slik som fjærer. Under bearbeidelse av skum etter støpingen blir det en del avskjær av skum, slik som fra renskjæring, men også etter tilskjæring av skum til diverse møbeldeler. In the production of furniture, foam products such as polyurethane (PU) are often used for padding the furniture parts, either alone or in combination with other materials or comfort-providing parts such as springs. During the processing of foam after casting, there is some off-cut of foam, such as from clean cutting, but also after cutting foam for various furniture parts.

Avskjæret samles og kuttes opp i små biter som senere kan brukes som fyllstoff eller også blandes med lim for å støpes til egne enheter, slik som for eksempel madrasser og puter. Denne metoden kalles "rebond" ettersom den binder sammen avskjærsbiter av støpt skum. For å lime polyuretan benyttes for eksempel prepolymer av polyol og isocyanat. The scrap is collected and cut into small pieces that can later be used as filler or mixed with glue to be molded into separate units, such as mattresses and pillows. This method is called "rebond" as it binds together scrap pieces of molded foam. To glue polyurethane, for example, prepolymer of polyol and isocyanate is used.

Ulempen med metoden er at tettheten av produktene som frem-stilles på denne måten generelt blir relativt lav og ujevn, noe som gjøre at skumproduktet blir relativt mykt og lett faller fra hverandre. Rebondmetoden benyttes derfor fortrinnsvis til produkter som ikke utsettes for stor slitasje av kanter, og/eller produkter som har en enkel form slik som madrasser. The disadvantage of the method is that the density of the products produced in this way is generally relatively low and uneven, which means that the foam product becomes relatively soft and easily falls apart. The Rebond method is therefore preferably used for products that are not exposed to a lot of edge wear, and/or products that have a simple shape such as mattresses.

Imidlertid er den ujevne hardheten av rebondprodukter heller ikke spesielt egnet for madrasser der det stadig stilles høyere krav til komfort og kontroll av mykhetsgrad. However, the uneven hardness of rebond products is not particularly suitable for mattresses where there are increasingly high demands on comfort and control of the degree of softness.

Det er således et behov for andre måter å benytte restskum fra annen skumproduktproduksjon, samt å forbedre rebondmetoden . There is thus a need for other ways of using residual foam from other foam product production, as well as to improve the rebond method.

Kort beskrivelse Short description

Forliggende oppfinnelse vedrører en fremgangsmåte ved rebondstøping hvori revet skum med lim føres inn i en støpeform der minst én innvendig flate kan skyves inn i støpeformen for å sammenpresse skumbitene før damp tilsettes for å herde produktet og deretter avkjøles, som er kjennetegnet ved at støpeformen ristes eller vibreres før sammenpressing og herding for å fordele og/eller pakke skumbitene jevnt. The present invention relates to a method of rebound molding in which shredded foam with adhesive is fed into a mold where at least one internal surface can be pushed into the mold to compress the foam pieces before steam is added to harden the product and then cool, which is characterized by the mold being shaken or vibrated prior to compression and curing to distribute and/or pack the foam pieces evenly.

Foreliggende oppfinnelse vedrører også en støpeform for rebondstøping av skumbiter hvori minst én innvendig flate kan skyves inn i støpeformen for å redusere volumet av formen, som er kjennetegnet ved at støpeformen blir ristet eller vibrert for å pakke og/eller fordele skumbitene jevnt før herding ved at støpeformen omfatter en riste- eller vibreringsanordning som er montert på en dreibar flate, og en bevegelig leddet arm koblet til et svinghjul rister eller vibrerer støpeformen når svinghjulet blir dreiet. The present invention also relates to a mold for rebond molding of foam pieces in which at least one internal surface can be pushed into the mold to reduce the volume of the mold, which is characterized by the mold being shaken or vibrated to pack and/or distribute the foam pieces evenly before curing by the mold comprises a shaking or vibrating device mounted on a rotatable surface, and a movable articulated arm connected to a flywheel shakes or vibrates the mold when the flywheel is rotated.

Beskrivelse av tegningene Description of the drawings

Fig. 1 viser et perspektivbilde sett ovenfra av en tom støpeboks i henhold til oppfinnelsen. Fig. 2 viser en riste- eller vibreringsanordning for støpe-boksen i fig. 1. Fig. 3 viser et ferdig produkt støpt i støpeboksen i fig. 1. Fig. 1 shows a perspective view seen from above of an empty casting box according to the invention. Fig. 2 shows a shaking or vibrating device for the molding box in fig. 1. Fig. 3 shows a finished product cast in the casting box in fig. 1.

Fig. 4 viser en innstøpingsdel (kjernedel) lagt i støpebok-sen i fig. 1. Fig. 4 shows an embedment part (core part) placed in the casting box in fig. 1.

Detaljert beskrivelse Detailed description

Foreliggende oppfinnelse vil nå bli beskrevet ved en utfør-elsesmåte som ikke begrenser omfanget av oppfinnelsen, som er definert i de vedlagte patentkravene. The present invention will now be described in an embodiment which does not limit the scope of the invention, which is defined in the attached patent claims.

I denne utførelsen produseres en pute, slik som til en skammel eller stol/sofapute. In this version, a cushion is produced, such as for a stool or chair/sofa cushion.

Som nevnt benytter foreliggende fremgangsmåte rester av skum fra øvrig produksjon av skumprodukter enten internt i en produksjon, eller skumrester kan kjøpes fra andre prod-usenter. Fremgangmåten er således miljøvennlig ved at den utnytter avfall eller kan resirkulere skum, slik som poly-uretanskum. As mentioned, the present method uses leftover foam from other production of foam products either internally in a production, or leftover foam can be bought from other production centers. The method is thus environmentally friendly in that it utilizes waste or can recycle foam, such as polyurethane foam.

For å benytte rester av ujevn størrelse rives skummet opp i en granulator, for derved å gi skumbiter av noenlunde samme størrelse. Skumbitene lagres på store oppbevaringstanker og kan mates eller doseres ved en skruemater i bunnen av en slik tank. Ved å skru skumbitene ut i et blanderom med til-førsel av trykkluft kan bitene fluidiseres og transporteres til støpeformen gjennom rørganger. In order to use residues of uneven size, the foam is torn up in a granulator, thereby giving pieces of foam of approximately the same size. The pieces of foam are stored in large storage tanks and can be fed or dosed by a screw feeder at the bottom of such a tank. By screwing the pieces of foam out into a mixing room with a supply of compressed air, the pieces can be fluidized and transported to the mold through ducts.

Fortrinnsvis blandes det inn ca. 10% lim med skumbitene før de blåses eller suges inn i støpeformen. Limet kan sprayes inn i den fluidiserte blandingen og kan være et varmeherd-ende lim. Preferably mix in approx. 10% glue with the foam pieces before they are blown or sucked into the mold. The adhesive can be sprayed into the fluidized mixture and can be a thermosetting adhesive.

Ettersom skumbitene fluidiseres og transporteres med luft kan fyllingen av støpeboksen utføres på særdeles kort tid sammenlignet med tradisjonell støping. I dette eksemplet fylles støpeboksen 1 i fig. 1 på under 1 sekund. As the pieces of foam are fluidized and transported with air, the filling of the molding box can be carried out in an extremely short time compared to traditional molding. In this example, the casting box 1 in fig. 1 in under 1 second.

Deretter lukkes kassen og ristes eller vibreres i omtrent 2 sekunder som er tilstrekkelig for å få en jevnere fordeling og/eller pakking av skumbitene og derved også et tettere og fastere produkt. I dette eksempelet er støpekassen 1 i fig. 2 montert på en dreibar flate 20, og en bevegelig leddet arm 21 koblet til et svinghjul 22 rister eller vibrerer kassen 1 når svinghjulet 22 dreies. The box is then closed and shaken or vibrated for approximately 2 seconds, which is sufficient to obtain a more even distribution and/or packing of the foam pieces and thereby also a denser and firmer product. In this example, the casting box 1 in fig. 2 mounted on a rotatable surface 20, and a movable articulated arm 21 connected to a flywheel 22 shakes or vibrates the case 1 when the flywheel 22 is turned.

For å ytterligere øke tettheten av støpeproduktet reduseres deretter volumet av støpeformen for å presse sammen skumbitene, som etter risting eller vibrering ligger bedre pakket og har større kontaktflate og derved bedre potensial for sammenliming. I dette eksempelet er sidekantene 30 i den øvre delen 2 av støpeboksen 1 bevegelige og kan presses innover ved hjelp av stempler 31. For å få en kompakt pute er også bunnen av støpeboksen i dette eksempelet utstyrt med lignende anordninger. I dette eksemplet hever bunnen seg først for å posisjonere og presse skummassen opp i lokkdelen av støpeboksen og deretter presses sidekantene 30 av lokket inn for å få en ekstra høy tetthet i sidekantene på produktet. In order to further increase the density of the cast product, the volume of the mold is then reduced in order to press together the foam pieces, which after shaking or vibrating are better packed and have a larger contact surface and thereby better potential for bonding. In this example, the side edges 30 in the upper part 2 of the mold box 1 are movable and can be pressed inward by means of pistons 31. In order to obtain a compact cushion, the bottom of the mold box in this example is also equipped with similar devices. In this example, the bottom first rises to position and press the foam mass up into the lid part of the mold box and then the side edges 30 of the lid are pressed in to get an extra high density in the side edges of the product.

Etter at volumet i støpeformen er redusert, tilføres damp inn i kassen i ca. 3 sekunder, og skumbitene limes og herdes øyeblikkelig. After the volume in the mold has been reduced, steam is fed into the box for approx. 3 seconds, and the foam pieces are glued and cured instantly.

Deretter kan støpeformen 1 åpnes og produktet 10 fjernes for støping av neste eksemplar. The mold 1 can then be opened and the product 10 removed for casting the next specimen.

En slik prosess tar omtrent 5-10 sekunder å gjennomføre sammenlignet med omtrent 5 minutter tradisjonell støping med flytende skum som ekspanderes og herdes. Such a process takes about 5-10 seconds to complete compared to about 5 minutes of traditional molding with liquid foam that expands and hardens.

I tillegg er fremgangsmåten av foreliggende oppfinnelse spesielt egnet til å støpe inn deler i skummet. I fig. 4 er det vist en kjernedel 40 av hard plast som skal støpes inn i puten. Ved å plassere kjernedelen 40 i støpeformen 1 slik at det er åpninger 42 rundt kjernedelen eller hull 43 i kjernedelen 40 vil skumbitene blåses rundt kjernen 40 og omhylle denne. På denne måten kan kjernedelen enkelt støpes inn i en polstring. Dette er mye raskere og enklere enn å innstøpe kjernedelen ved å benytte flytende ekspanderende skum, eller å produsere to skumdeler som må limes rundt kjernen i etterkant. In addition, the method of the present invention is particularly suitable for molding parts into the foam. In fig. 4 shows a core part 40 of hard plastic which is to be molded into the cushion. By placing the core part 40 in the mold 1 so that there are openings 42 around the core part or holes 43 in the core part 40, the pieces of foam will be blown around the core 40 and envelop it. In this way, the core part can be easily molded into a padding. This is much faster and easier than embedding the core part using liquid expanding foam, or producing two foam parts that must be glued around the core afterwards.

Foreliggende oppfinnelse vedrører derfor også en støpeform for anvendelse i rebondstøping der én eller flere sider av formen kan skyves inn i formen for å sammenpresse skumbiter. Støpeformen har ett innløp for skumbitene eller et lokk slik at skumbiter kan fylles i formen, samt et innløp for damp for å herde limet som binder skumbitene sammen. The present invention therefore also relates to a mold for use in rebond molding where one or more sides of the mold can be pushed into the mold to compress pieces of foam. The mold has one inlet for the foam pieces or a lid so that foam pieces can be filled into the mold, as well as an inlet for steam to harden the glue that binds the foam pieces together.

Fortrinnsvis har støpeformen en riste- eller vibreringsanordning for å pakke skumbitene sammen før herding og eventuelt har støpeformen holde- eller støttepunkter for å plassere en kjerne, slik som en kjerne av hard plast, for fullstendig eller delvis innstøping i skumproduktet. Preferably the mold has a shaking or vibrating device to pack the foam pieces together before curing and optionally the mold has holding or support points for placing a core, such as a hard plastic core, for full or partial embedding in the foam product.

Alternative utførelser Alternative designs

Fremgangmåten og apparatet ifølge oppfinnelsen kan selv-følgelig benyttes til alle typer skum som kan limes på tilsvarende måter. Videre er det forutsett at en rekke additiver kan være innblandet i skumbitene på forhånd eller tilsettes til skumblandingen som går inn i støpeformen. Slike additiver kan være farge, varmereaktive midler (f.eks. lim, bindemidler og herdere), eller brannhemmende midler slik som grafitt. The method and apparatus according to the invention can of course be used for all types of foam that can be glued in similar ways. Furthermore, it is assumed that a number of additives can be mixed into the foam pieces in advance or added to the foam mixture that goes into the mold. Such additives can be colour, heat reactive agents (eg adhesives, binders and hardeners), or fire retardants such as graphite.

Claims (8)

1. Fremgangsmåte ved rebondstøping hvori revet skum med lim føres inn i en støpeform der minst én innvendig flate kan skyves inn i støpeformen for å sammenpresse skumbitene før damp tilsettes for å herde produktet og deretter avkjøles, karakterisert ved at støpeformen ristes eller vibreres før sammenpressing og herding for å fordele og/eller pakke skumbitene jevnt.1. Method of rebond molding in which shredded foam with adhesive is fed into a mold where at least one internal surface can be pushed into the mold to compress the pieces of foam before steam is added to cure the product and then cooled, characterized in that the mold is shaken or vibrated before compression and curing in order to distribute and/or pack the foam pieces evenly. 2. Fremgangsmåte ifølge krav 1, karakterisert ved at skumbitene føres inn i støpeformen ved hjelp av trykkluft, luftstrøm eller vakuum.2. Method according to claim 1, characterized in that the pieces of foam are fed into the mold by means of compressed air, air flow or vacuum. 3. Fremgangsmåte ifølge krav 1 eller 2, karakterisert ved at en kjernedel støpes inn i formen.3. Method according to claim 1 or 2, characterized in that a core part is cast into the mold. 4. Fremgangsmåte ifølge krav 3, karakterisert ved at åpninger rundt eller i kjernedelen tillater skumbitene å fullstendig eller delvis omhylle kjernedelen under innføring i støpeformen.4. Method according to claim 3, characterized in that openings around or in the core part allow the foam pieces to completely or partially envelop the core part during introduction into the mould. 5. Fremgangsmåte ifølge ethvert foregående krav, karakterisert ved at to, fortrinnsvis tre, eller flere innvendige flater skyves inn i støpeformen for å redusere volumet av formen, samtidig eller i sekvens før og/eller under støping.5. Method according to any preceding claim, characterized in that two, preferably three, or more internal surfaces are pushed into the mold to reduce the volume of the mold, simultaneously or in sequence before and/or during casting. 6. Fremgangsmåte ifølge krav 5, karakterisert ved at bunnen av støpeformen hever seg først for å posisjonere og presse skummassen opp i en lokkdel av støpeboksen og deretter presses sidekantene av lokket inn for å få en ekstra høy tetthet i sidekantene på skumproduktet.6. Method according to claim 5, characterized in that the bottom of the mold rises first to position and press the foam mass up into a lid part of the mold box and then the side edges of the lid are pressed in to get an extra high density in the side edges of the foam product. 7. Støpeform for rebondstøping av skumbiter hvori minst én innvendig flate kan skyves inn i støpeformen for å redusere volumet av formen, karakterisert ved at støpeformen blir ristet eller vibrert for å pakke og/eller fordele skumbitene jevnt før herding ved at støpeformen omfatter en riste- eller vibreringsanordning som er montert på en dreibar flate, og en bevegelig leddet arm koblet til et svinghjul rister eller vibrerer støpeformen når svinghjulet blir dreiet.7. Mold for rebond molding of foam pieces in which at least one internal surface can be pushed into the mold to reduce the volume of the mold, characterized in that the mold is shaken or vibrated to pack and/or distribute the foam pieces evenly before curing in that the mold comprises a shaking or vibrating device mounted on a rotatable surface, and a movable jointed arm connected to a flywheel shakes or vibrates the mold when the flywheel is turned. 8. Støpeform ifølge krav 6 eller 7, karakterisert ved at to, fortrinnsvis tre, eller flere innvendige flater kan skyves inn i støpeformen for å redusere volumet av formen, samtidig eller i sekvens.8. Mold according to claim 6 or 7, characterized in that two, preferably three, or more internal surfaces can be pushed into the mold to reduce the volume of the mold, simultaneously or in sequence.
NO20055035A 2005-10-28 2005-10-28 Procedure for re-stopping and stopping form for re-stopping NO326194B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO20055035A NO326194B1 (en) 2005-10-28 2005-10-28 Procedure for re-stopping and stopping form for re-stopping
PCT/NO2006/000382 WO2007049973A2 (en) 2005-10-28 2006-10-30 Rebond mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20055035A NO326194B1 (en) 2005-10-28 2005-10-28 Procedure for re-stopping and stopping form for re-stopping

Publications (3)

Publication Number Publication Date
NO20055035D0 NO20055035D0 (en) 2005-10-28
NO20055035L NO20055035L (en) 2007-04-30
NO326194B1 true NO326194B1 (en) 2008-10-13

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WO (1) WO2007049973A2 (en)

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* Cited by examiner, † Cited by third party
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US9410026B1 (en) 2009-05-22 2016-08-09 Columbia Insurance Company Rebond polyurethane foam comprising reclaimed carpet material and methods for the manufacture of same
US9724852B1 (en) 2009-05-22 2017-08-08 Columbia Insurance Company High density composites comprising reclaimed carpet material

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JPS58173630A (en) * 1982-04-05 1983-10-12 Honda Motor Co Ltd Interior finish board and preparation thereof
JP3095262B2 (en) * 1991-07-05 2000-10-03 株式会社イノアックコーポレーション Manufacturing method of synthetic resin molded products
CA2052754C (en) * 1991-10-03 1994-11-01 Ken Yamamoto Expansion molding method and apparatus
DE4333330A1 (en) * 1993-09-30 1995-04-06 Basf Ag Process for the production of foam molded parts
EP0657266B2 (en) * 1993-11-29 2005-09-07 C.A. Greiner & Söhne Gesellschaft M.B.H. Method and apparatus for the production of a plastic foam moulding
JP2003080546A (en) * 2001-09-12 2003-03-19 Mikio Bessho Beads molding method
AT500271B1 (en) * 2004-03-25 2008-02-15 Greiner Perfoam Gmbh DEVICE AND METHOD FOR PRODUCING A SHAPE AND MOLDED PART

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NO20055035D0 (en) 2005-10-28
NO20055035L (en) 2007-04-30
WO2007049973A2 (en) 2007-05-03
WO2007049973A3 (en) 2010-08-26

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