WO2005090054A1 - Verfahren zur coextrusion von schmelzeströmen unterschiedlicher zusammensetzung - Google Patents
Verfahren zur coextrusion von schmelzeströmen unterschiedlicher zusammensetzung Download PDFInfo
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- WO2005090054A1 WO2005090054A1 PCT/EP2005/051212 EP2005051212W WO2005090054A1 WO 2005090054 A1 WO2005090054 A1 WO 2005090054A1 EP 2005051212 W EP2005051212 W EP 2005051212W WO 2005090054 A1 WO2005090054 A1 WO 2005090054A1
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- WIPO (PCT)
- Prior art keywords
- melt
- stream
- streams
- coextrusion
- film
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Classifications
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- 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
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
-
- 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
- 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
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
-
- 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
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- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/29—Feeding the extrusion material to the extruder in liquid form
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/363—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using non-actuated dynamic mixing devices
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/69—Filters or screens for the moulding material
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
Definitions
- the invention relates to a process for the coextrusion of at least two streams of polymer melts of different compositions and a process for the extrusion of an intermediate layer having a colored strip for composite glazing.
- Objects made of plastic are often produced by coextrusion of polymer melts of different compositions. For example, in the production of plastic films with differently colored areas, a coextrusion of at least two polymeric streams with different colors is carried out.
- a colorless main stream with a colored side stream is brought together in an extrusion tool such that the two streams merge with one another and a film with two differently colored areas and a smooth color transition is produced.
- 1 schematically shows such a coextrusion plant.
- a plasticizer-containing polymer mass P is fed in the main stream through the main extruder E H and in the side stream through the side extruder E S via melt pumps P H / S and melt filters F H / S into the extrusion die D.
- the dye A is added with polymer mass P in the side extruder E.
- tool D the actual coextrusion is carried out with a film strip C to obtain the film T.
- the delivery rate and pressures of the extruders and melt pumps must be well coordinated.
- dyes and color pigments can be subject to production fluctuations, so that slightly differently colored products can be obtained even with the same recipes. Incorrect coloring can, however, only be detected on the finished extruded film, so that the film which does not meet the specification has to be disposed of at high cost.
- these processes relate to non-transparent polymers, the optical properties of which meet only minimal requirements (are they made?). The production of transparent polymers in optical quality for e.g. Glazing cannot be found in these publications.
- the object of the present invention was therefore to develop a process for the coextrusion of polymer melt streams of different compositions that does not have the disadvantages of the prior art described.
- the changing times of additives (additives) are to be reduced and faulty productions due to inhomogeneities of the coextrudate are to be recognized and eliminated more quickly. Disclosure of the invention
- the present invention therefore relates to a process for the coextrusion of at least two polymer melt streams of different composition, characterized by the process steps a) melting a polymer mass b) separating the melt into at least two melt streams c) mixing additives into at least one melt stream and d) Merging the melt streams with coextrusion in one or more extrusion tools, the polymer mass being based on polyvinyl butyral, ethylene vinyl nyl acetate, polyvinyl alcohol and / or a terpolymer based on ethylene, vinyl acetate and vinyl alcohol units.
- polymer melt streams which preferably contain the same polymer or polymer mass, but contain different additives, can be coextruded in a production-technically flexible manner.
- the procedure according to the invention also offers the advantage of being able to dispense with a not inconsiderable part of the investments in the extrusion strand to which the additives are added.
- the polymer composition used in the process according to the invention is based on polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA) and / or a terpolymer composed of ethylene vinyl acetate and vinyl alcohol units, i.e. contains these polymers to at least 60, 70, 80, 90, 95 or 100 wt.%, Based on the polymer mass used in step a).
- PVB polyvinyl butyral
- EVA ethylene vinyl acetate
- PVA polyvinyl alcohol
- terpolymer composed of ethylene vinyl acetate and vinyl alcohol units, i.e. contains these polymers to at least 60, 70, 80, 90, 95 or 100 wt.%, Based on the polymer mass used in step a).
- These polymers can each be used alone, as a blend and / or in a mixture with plasticizers and / or fillers and / or other additives.
- the polyvinyl butyrals used can have a degree of acetalization of 50-95%, preferably 65-85% and a residual PVOH content of 25-5%.
- the polyvinyl alcohols in particular have a degree of hydrolysis of 75-100%, corresponding to an acetate content of approximately 25-0%.
- the terpolymer with ethylene, vinyl alcohol and vinyl acetate units preferably has these substructures with the respective proportions 0.5-20 mol%, 80-99.5 mol% and 10-0.5 mol%.
- Different polymer masses or melt streams in the sense of the present invention can e.g. same polymers but contain different proportions of plasticizers, fillers or additives.
- the additives mentioned for process step c) can be the polymers, blends, mixtures or organic or inorganic pigments, carbon black, silica, UV stabilizers and / or titanium dioxide mentioned.
- phthalocyanines or their metal complexes have proven their worth as dyes.
- the method according to the invention can be used in particular for the production of films or plates which have at least two areas of different color intensity.
- process step d at least two melt streams of different colors are extruded here.
- the process according to the invention is particularly advantageously used for producing a film which has a colored strip and is suitable as an intermediate layer in laminated glazing.
- a PVB-containing polymer mass ie a mass containing PVB, plasticizers, adhesion regulators and possibly others
- the additives were melted in an extruder and divided into a main and a side stream. Dyes such as pigments are added to the side stream; the two streams are then coextruded into a film having a colored strip.
- polymer mixtures e.g. according to DE 101 62 338 AI or WO 02/102591 AI can be used. These consist of approximately 70-75% by weight of PVB with a PVOH content of approximately 20% and 30-25% by weight of plasticizers such as 3G8. Additional components are antiblocking agents, surfactants, adhesion regulators, UV stabilizers and antioxidants.
- the method according to the invention can be carried out, for example, according to FIG. 2:
- the polymeric mass P composed of PVB, plasticizer and UV stabilizer, etc. is melted in the extruder E.
- a defined partial stream of the transparent melt strand obtained is fed into a side strand via a melt valve (not shown).
- Color pigments and / or other additives A are metered in there and mixed homogeneously into the melt stream via a static or dynamic mixer M.
- the transparent main stream and the additive-containing side stream are injected into the nozzle D as described for example in EP 111 678 B1 and discharged as a coextrusion layer (film) T.
- the pressure required to overcome the tool resistance and the pressure loss of the mixer M is applied via melt pumps P and PH.
- the main strand can optionally be passed through the melt filter FH.
- these additives can be pasted beforehand. This means that they are incorporated into a liquid that is compatible with the melt and additive, so that a paste with a preferably honey-like viscosity is formed.
- the main strand contains 27% plasticizer, there is 27.2-27.5% plasticizer in the melt after the addition of a 10-15% additive paste. With regard to the resulting viscosity differences in the subsequent coextrusion, these differences are tolerable.
- the melting of the polymer mass in process step a) is preferably carried out in one or more extruders, particularly preferably in a single extruder. If the polymer mass used is a mixture of several components, e.g. a mixture of PVB resin, one or more plasticizers, adhesion regulators and UV stabilizers, the mixing of these components is advantageously also carried out in the extruder of process step a).
- melt obtained from a) is divided into at least two (preferably two, three or four) melt streams by means of suitable valves.
- At least one of the melt streams can be passed through a dynamic or static mixing section before and / or after the corresponding method step c).
- a dynamic or static mixing section before and / or after the corresponding method step c.
- the use of such a mixing section is also recommended before the addition of additives according to process step c).
- the mixing sections used according to the invention can be static (i.e. immobile) or dynamic (i.e. rotating) mixers.
- static mixers webs are introduced into the melt channel in such a way that several open, intersecting flow channels are created, through which a melt flow is mixed over the entire flow cross-section by continuous division, expansion and rearrangement.
- the mixing energy is applied by melt pumps or extruders.
- the length of the mixing sections determines the mixing quality.
- Other design variables are the viscosity, the density and the temperature of the materials to be mixed as well as the flow cross-section and the mass flow rate.
- mixers bring the flow profile of the melt stream in question from a parabolic to an almost rectangular shape, it makes sense not to use free melt channels without mixing elements from the place where the additives are added in order to keep the color change and cleaning times as short as possible.
- Mixers can be modular, i.e. be made up of several segments and also be integrated into curved melt channels, so that it is possible to largely avoid a parabolic flow of the melt.
- a further possibility of mixing additives in process step c) is the use of a dynamic mixer, so that process step c) at least one melt stream can be carried out in a dynamic mixer.
- a planetary gear pump from Barmag AG, type Promix AC, can be used as a dynamic mixing element. Pumps of this type have one or more inlet and outlet openings, the driven, centrally arranged planet gear being connected to a melt mixer on the melt inlet side.
- This dynamic mixer has cavities in the stator (pump housing) and in the rotor (pump shaft), which creates a three-dimensional flow.
- intensive distributive mixing also takes place in dynamic mixing systems.
- the advantage of the pump mixer is that the pressure loss of the mixer is compensated by the gear pump.
- the additives such as the color paste, are preferably fed into the melt flow in the inlet channel of the mixer, so that the melt line running from the extruder to the pump is not filled with additives or paint.
- the lines up to the mixer do not need to be flushed out.
- the mixing length of the dynamic mixer is much shorter.
- the order of the pump and mixer can also be reversed so that the color is then metered between the pump and mixer.
- melt filters which can be arranged differently, can be used to filter the melt streams. It is thus possible for the melt to be passed through a melt filter between process steps a) and b). Alternatively, after process step b), at least one melt stream can be passed through a melt filter before and / or after the corresponding process step c).
- FIG. 3 The simplest embodiment of the method according to the invention is shown in FIG. 3.
- the polymer melt is produced in the extruder E, passed through an optional melt filter F by means of a pump P and divided into a main and a side strand.
- Additives A are metered into the side strand and the melt stream thus obtained is homogenized in the mixing section M.
- the two strands / polymer streams are brought together in the nozzle D and coextruded into the film T with an additive-containing region C.
- two melt pumps are preferably used in order to be able to set the throughputs for the individual melt flows independently of one another and to overcome the resistance of the pressure consumers behind the pumps, such as static mixers, melt filters or extrusion dies.
- the question now is where, in combination with mixer and additive dosing, is the most suitable place, where the pump of the individual melt streams should be installed.
- Variant 1 offers the advantage of being able to meter in the additives immediately before the static mixer. This means that it hits the mixing elements immediately and can therefore be homogenized well.
- the disadvantage of this variant is that the additives have to be injected against a high pressure (up to 200 bar), because both the extrusion nozzle and the static mixer act as pressure consumers. With small doses of additives, problems with dosing accuracy could result if the back pressure becomes too great. If necessary, this can be avoided by using a special dosing pump from Barmag AG.
- a pump consists of two gear pumps connected in series. The first gear pump is used to build up pressure, the second pump for precise metering. The unit is set via a spring mechanism so that the pressure difference across the second pump is zero and therefore there are no leakage currents between the pressure and suction sides.
- Variant 2 avoids the problem of the high injection pressure, since the additive is metered in before the pressure booster pump and is thus injected only against low pressure ( ⁇ 30 bar). However, there is a risk that additives will be deposited in the pump's dead zones.
- variant 3 is a very precise melt metering, since the booster pump is located directly in front of the extrusion die. But here, too, the additives have to be metered in against a relatively high pressure generated by the static mixer. In this case, the pressure loss of the mixer must be applied by the extruder, which increases the shear stress on the melt in the extruder and causes the melt temperature to rise.
- the additives are metered in before the melt pump P.
- a short, intensive static mixer M 1 follows before the pre-homogenized melt reaches pump P. This is followed by a longer mixing zone M for final homogenization, with the mixing section optionally extending from the pump to the extrusion die.
- the additive injection can take place at relatively low pressures, without the risk of additive deposits in the pump. If a dynamic mixer is used, it is expedient to use this immediately before the extrusion die. Here too, additives such as paint can be injected against relatively low pressures.
- the installation of the dynamic mixer directly in front of the nozzle also offers the advantage of keeping the melt path contaminated with additive very small, which leads to extremely short additive changes. lead times.
- Such a method variant is outlined in FIG. 5.
- a polymer mass P is melted in the extruder E and then divided into two melt streams.
- the pressure drop of the optional filter F and the extrusion tool D is compensated for by the melt pump P.
- the side stream also has an optional pump P.
- the additive A is fed into the dynamic mixer M shortly before or directly, the mixer having an additional pump P.
- the streams are brought together in the nozzle D and coextruded into a film T with an additive-containing area C.
- At least one melt stream in process step d) is preferably extruded through an extrusion die with a wedge-shaped or torpedo-shaped section.
- the polymer composition may contain one or more plasticizers.
- plasticizers for the polymers mentioned are e.g. Glycerin, ethylene glycol, diethylene glycol, triethylene glycol, trimethylopropane, neopentyl glycol, triethylamine, poly (ethylene) glycols, poly (ethylene oxides) including block copolymers of the type HO- (CH2-CH2-0) n- (CH2-CH (CH3) -0 ) mH with n> 2, m> 3, n / m> 0.3 and (n + m) ⁇ 25 or poly (butylene oxides) and their derivatives.
- At least one of the two terminal hydroxyl groups of the poly (ethylene oxide) or poly (butylene oxide) is replaced by an organic radical.
- this can be ethoxylated fatty alcohols, ethoxylated fatty acids such as oleic acid polyethylene glycol ester or monoethers of polyalkylene glycol with simple aliphatic alcohols such as methanol or ethanol.
- Plasticizers from the following groups can also be used: esters of polyvalent aliphatic or aromatic acids, for example dialkyl adipates such as dihexyl adipate, dioctyl adipate, hexylcyclohexyl adipate, mixtures of heptyl and nonyl adipates, diisononyl adipate, heptylnonidodipipate and ester deradipate acid Ester alcohols, dialkyl sebazates such as dibutyl sebazate, phthalate esters such as butyl benzyl phthalate; • esters of polyhydric aliphatic or aromatic alcohols or oligoether glycols with at most four ethylene glycol units with one or more unbranched or branched aliphatic or aromatic substituents, such as esters of di-, tri- or tetraglycols with linear or branched aliphatic or cycloaliphatic carb
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/593,060 US20080272513A1 (en) | 2004-03-17 | 2005-03-16 | Process for the Coextrusion of Melt Streams of Different Composition |
EP05717077A EP1725388A1 (de) | 2004-03-17 | 2005-03-16 | Verfahren zur coextrusion von schmelzeströmen unterschiedlic her zusammensetzung |
BRPI0508938-7A BRPI0508938A (pt) | 2004-03-17 | 2005-03-16 | processo para a co-extrusão de fluxos de massa fundida de composição diferente |
JP2007503348A JP4819790B2 (ja) | 2004-03-17 | 2005-03-16 | 異なる組成の溶融物流を同時押出しする方法 |
US13/678,022 US20130127087A1 (en) | 2004-03-17 | 2012-11-15 | Process for the Coextrusion of Melt Streams of Different Composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102004013201.1 | 2004-03-17 | ||
DE102004013201A DE102004013201A1 (de) | 2004-03-17 | 2004-03-17 | Verfahren zur Coextrusion von Schmelzeströmen unterschiedlicher Zusammensetzung |
Publications (1)
Publication Number | Publication Date |
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WO2005090054A1 true WO2005090054A1 (de) | 2005-09-29 |
Family
ID=34961943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2005/051212 WO2005090054A1 (de) | 2004-03-17 | 2005-03-16 | Verfahren zur coextrusion von schmelzeströmen unterschiedlicher zusammensetzung |
Country Status (8)
Country | Link |
---|---|
US (2) | US20080272513A1 (de) |
EP (1) | EP1725388A1 (de) |
JP (1) | JP4819790B2 (de) |
CN (1) | CN100548625C (de) |
BR (1) | BRPI0508938A (de) |
DE (1) | DE102004013201A1 (de) |
RU (1) | RU2417887C2 (de) |
WO (1) | WO2005090054A1 (de) |
Cited By (5)
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US7754124B2 (en) * | 2006-04-21 | 2010-07-13 | Southwire Company | Method and apparatus for multi-stream metered extrusion |
ITMI20102044A1 (it) * | 2010-11-03 | 2012-05-04 | Ribes Ricerche E Formazione S R L | Manufatto composito in forma di lastra con proprieta' termiche duali |
EP3205487A1 (de) * | 2016-02-15 | 2017-08-16 | Kuraray Europe GmbH | Verfahren zur herstellung von folien auf basis von weichpolyvinylacetal durch beschichtung |
EP3401092A1 (de) | 2017-05-10 | 2018-11-14 | Kuraray Europe GmbH | Zwischenschichtfilm mit schattenband |
WO2021004898A1 (en) * | 2019-07-11 | 2021-01-14 | Industria Termoplastica Pavese S.P.A. | System for the production by blowing extrusion of a film containing at least one layer of hot-melt polymer and/or polymer with high melt flow index |
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DE102007021103A1 (de) * | 2007-05-03 | 2008-11-06 | Kuraray Europe Gmbh | Herstellung von Folien für Verbundverglasungen durch Spritzgieß- oder Spritzprägeverfahren |
DE102007050640B4 (de) * | 2007-10-23 | 2015-11-12 | Automatik Plastics Machinery Gmbh | Verfahren und Vorrichtung zur Herstellung von Kunststoffgranulat mit in diesem enthaltenen Feststoffteilchen |
DE102008029433A1 (de) | 2008-06-20 | 2009-12-31 | Giesecke & Devrient Gmbh | Datenträgerkarte und Verfahren zur Herstellung einer Datenträgerkarte |
DE102009058803A1 (de) | 2009-12-18 | 2011-06-22 | Giesecke & Devrient GmbH, 81677 | Datenträgerkarte und Verfahren zur Herstellung einer Datenträgerkarte |
DE102010019941B4 (de) * | 2010-05-08 | 2014-11-13 | Horst Pabst | Vorrichtung zur Coextrusion von thermoplastischen Schmelzeströmen zur Herstellung von Verbundglasscheiben |
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- 2005-03-16 CN CNB2005800081120A patent/CN100548625C/zh not_active Expired - Fee Related
- 2005-03-16 BR BRPI0508938-7A patent/BRPI0508938A/pt not_active Application Discontinuation
- 2005-03-16 US US10/593,060 patent/US20080272513A1/en not_active Abandoned
- 2005-03-16 WO PCT/EP2005/051212 patent/WO2005090054A1/de active Application Filing
- 2005-03-16 EP EP05717077A patent/EP1725388A1/de not_active Withdrawn
- 2005-03-16 JP JP2007503348A patent/JP4819790B2/ja not_active Expired - Fee Related
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ITMI20102044A1 (it) * | 2010-11-03 | 2012-05-04 | Ribes Ricerche E Formazione S R L | Manufatto composito in forma di lastra con proprieta' termiche duali |
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EP3401092B1 (de) | 2017-05-10 | 2021-03-03 | Kuraray Europe GmbH | Zwischenschichtfilm mit schattenband |
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Also Published As
Publication number | Publication date |
---|---|
CN1929984A (zh) | 2007-03-14 |
DE102004013201A1 (de) | 2005-10-06 |
US20080272513A1 (en) | 2008-11-06 |
RU2006136273A (ru) | 2008-04-27 |
US20130127087A1 (en) | 2013-05-23 |
EP1725388A1 (de) | 2006-11-29 |
RU2417887C2 (ru) | 2011-05-10 |
BRPI0508938A (pt) | 2007-08-14 |
JP4819790B2 (ja) | 2011-11-24 |
CN100548625C (zh) | 2009-10-14 |
JP2007529341A (ja) | 2007-10-25 |
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