FI78866C - Flerskiktig haolplatta och foerfarande foer dess framstaellning. - Google Patents

Flerskiktig haolplatta och foerfarande foer dess framstaellning. Download PDF

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Publication number
FI78866C
FI78866C FI834247A FI834247A FI78866C FI 78866 C FI78866 C FI 78866C FI 834247 A FI834247 A FI 834247A FI 834247 A FI834247 A FI 834247A FI 78866 C FI78866 C FI 78866C
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Finland
Prior art keywords
break
acrylic glass
elongation
strip
plastic
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FI834247A
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English (en)
Swedish (sv)
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FI78866B (fi
FI834247A (fi
FI834247A0 (fi
Inventor
Klaus Ernst Poehlmann
Heinz Vetter
Ernst Friederich
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Roehm Gmbh
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Publication of FI834247A0 publication Critical patent/FI834247A0/fi
Publication of FI834247A publication Critical patent/FI834247A/fi
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Publication of FI78866B publication Critical patent/FI78866B/fi
Publication of FI78866C publication Critical patent/FI78866C/fi

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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
    • B29C48/03—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
    • B29C48/16—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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • 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
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/54—Slab-like translucent elements
    • E04C2/543—Hollow multi-walled panels with integrated webs
    • 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
    • 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
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • 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
    • 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
    • B29C48/22—Articles comprising two or more components, e.g. co-extruded layers the components being layers with means connecting the layers, e.g. tie layers or undercuts
    • 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
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as 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
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2024/00—Articles with hollow walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744—Longitudinal or transverse tubular cavity or cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31928—Ester, halide or nitrile of addition polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Heat Treatment Of Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Stringed Musical Instruments (AREA)
  • Panels For Use In Building Construction (AREA)

Description

1 78866
Moni kerrcksinen ontelolaatta ja menetelmä sen valmistamiseksi. - Florskiktig hai rumsp 1 a t ta oeh FörFarande För d e s s f r a m s t n 11 n i n g .
Tämän keksinnön kohteena on monikerroksinen ontelolaatta, joka käsittää kaksi pääasiallisesti tasomaista ulkoseinämää ja niitä yksikappaleise sti yhdistävät väliseinät, jolloin ainatcin toinen ulkoseinämä koostuu ainakin kahdesta tarttuvasti yhdistetystä, erilaisia muoveja olevasta kerroksesta. Tämän laatuiset ontelolaatat ovat valmistettavissa suulakepurista-malla ja niillä on tavallisesti pursutussuunnassa koko pituudella samana pysyvä profiili.
Julkaisun DE-OS 28 32 676 mukaan eräs tämän laatuinen monikerroksinen ontelolaatta valmistetaan suulakepuristamalla sisäkerros polykarbonaattimuovis ta ja ulkokerros akryyli-lasista, jolloin polykarbonaattimuovikerros on muodostettu kantavaksi ja olennaisesti paksummaksi kuin akryylilasikerros, jonka paksuus on ainoastaan 10 - 100 pm. Paksummat akryyli-lasikerrokset varoittavat säröjen polykarbonaattimuovi-kerrokseen siirtymisvaarasta selvästi akryylilasikerroksen murtuessa.
Tunnetut monikerroksiset ontelolaatat eivät ole kantavan polykarbonaattikerroksen suuren sitkeydn johdosta kovin iskunarkoja ja ovat ulomman akryylilasikerroksen suuren kemiallisen vastustuskyvyn johdosta hyvin säänkestäviä. Suuremmassa määrin käytetyn polykarbonaattimuovin johdosta nämä ontelolevyt ovat valmistettavissa olennaisesti kalliimmin kuin sellaiset ontelolaatat, jotka ovat yksinomaan akryyli-lasia. Niiden epäkohtana on kuitenkin rajoitettu iskusitkeys.
Syntyi tehtävä pääasiallisesti akryylasia, jolla on pienempi murtovenymä, olevien ontelolaattojen iskunarkuuden pienentämiseksi. Tämä tehtävä ratkaistaan tämän keksinnön mukaisella moni kerroksisella ontelolaatalla.
2 78866
Eräs keksinnön mukainen sovellutusmuoto on esitetty osittain kuviossa 1 poikkileikkauksena.
Kuvio 2 esittää leikkausta laitteesta ontelolaatan valmistamiseksi .
Ainakin ulkoseinämä 1, sopivimmin molemmat ulkoseinämät 1 ja 2 käsittävät akryylilasia olevan kantavan kerroksen 4, jonka paksuus on yli puolet ulkoseinämän 1 ja 2 kokonaispaksuudesta. Se voi olla esim. 0,6 - 3 mm paksu. Ulkoseinämän 1 ja 2 sisäsivulle on sovitettu kerros 5 muovia, jolla on suurempi iskusitkeys kuin kerroksen 4 akryy 1 ila s illa.
Se on ohuempi kuin akryy 1 i1asikerro s 4, ja sen paksuus on esimerkiksi 0,05 - 0,5 mm, sopivimmin 0,1 - 0,2 mm.
Väliseinät 3, jotka sopivimmin sijaitsevat kohti suorasti ulkosein omia 1, 2 vastaan, mutta voivat olla sovitetut myöskin vinosti niihin nähden, voivat olla osittain mainittua akryylilasia ja osittain muovia, jolla on suurempi murtovenymä.
Ontelolaatan kokonaispaksuus d voi olla 6-60 mm. Väliseinät 3 ovat suunnilleen saman paksuiset kuin ulkoseinämät ja niillä voi olla välit a, jotka ovat 1-2 kertaa kokonaispaksuus ja jotka ovat sopivimmin 6 - 120 mm. Väliseinien ja ulkoseinämien paksuuden täytyy olla tarkoituksenmukaisesti 1/20 - 1/5 kokonaispaksuudesta. Kokonais leveys (poikittain väliseiniin nähden) voi olla 50 - 200 cm. Pituus (väliseinien suunnassa), kaupallinen pituus, on sopivimmin 2 - 20 m.
Akryylilasilla tarkoitetaan, mikäli ei tarkoituksellisesti toisin ilmoiteta, te rmop 1 ast i ses ti muokattavia, varsinkin suulakepuristettavia, sitkeyttä ei kohottavien lisäaineiden kanssa seostettuja metyyli a kryla atin homo- ja kopolymeere-ja, joilla on pieni murtovenymä, esimerkiksi 3-4 ?ό, jolloin me LyyJinkry laatin osuus un yli 90 py 1110-¾. Komono- 3 78866 meerit ovat esim. me takry y li hapon muita ai ky y li es':e rei t ä tai akryyli hapon aIkyyli es tereitä. Yleensä akryylilasi sisältää pienet lisäykset U V-s uoja-aineita, liukuaineita jne. Väritöntä, lasinkirkasta tai himmeää ainesta pidetään edul 1 i s irnpa na .
Keksinnön mukaisten ontelolaattojen pienennetty iskunarkuus perustuu muovin kohotettuun murtovenymään, joka muovi muodostaa ohuen sisäkerroksen. Yllättävää kylläkin, iskunarkuus alenee jo selvästi, kun sisäkerroksen muovin murtovenymä on 1 - 2 % (absoluuttinen) suurempi kuin akryylilasin murtovenymä. Se on sopivimman yli 5 % ja voi olla yli 100 %, kun taas akryylilasin murtovenymä tavallisesti on alle 5 %. Molempien muovien murtovenymien suhde on tavallisesti 1,3:1. Muovin, jolla on suurempi murtovenymä, täytyy olla myöskin termoplastisesti muokattavissa, varsinkin akryylilasin kanssa yhdessä su ui akepuristettavissa. Hyvä tartunta akry y lilasiin on myöskin tärkeä. Edullisia muoveja ovat po1ykarbonaatit, erityisesti aromaattisista bisfeno-leista, kuten bisfenoli A:sta, koostuvat muovit, samoinkuin akryyli 1 a s ilaadut, joilla on suuri murtovenymä. Niihin kuuluvat sekapolymeerit, jotka sisältävät alle 90 paino-?» me t y y li me t a kr y laa 11 i a ja yli 10 paino-?i, sopivammin 15 -30 paino-?» ak r y y li akry laa t ti a (1-8 C-atomia alkyy liryhmässä ) ja seostetut akryy li lasilaadut, joissa on iskusitkeäksi tekevä lisäys. Tällaiset massat on tunnettu esim. julkaisusta DE-AS 2 253 689. Mainitut akryylilasi laadut, joilla on korotettu murtovenymä, eivät kuulu käsitteen "akryylilasi" piiriin edellä käytetyssä merkityksessä.
Valmistus tapahtuu sopivasti molempien kerrosten 4 ja 5 koekstruusiolla. Lisäksi kahden suulakepuristimen toisessa syötetyssä moni aιnesuulakkeessa 10 muodostetaan kaksi kaksoisnauhaa 6, 7. Tosiella suulakepuristime11a valmistetaan jakokanavista 11 termoplastiset nauhat 6 4 78866 muovista, jolla on suurempi murtovenymä ja toisella suulakepuristimella jakokanavista 12 termoplastiset nauhat 7 akryyli-lasista ja liitetään tarttuvasti toisiinsa ka k soisnau hoik si 6, 7, jolloin osanauha 6, joka on suuremman murtovenymän omaavaa muovia, nojaa moniainesuulakkeen 10 painimeen 13. Alueessa, jossa painin muuttuu välin välityksellä erilliseksi sydänkappaleeksi 15 (esitetty pilkkuviivoi 1la kuviossa 2), muovausmassaa tulee osanauhoista 6 väliin IA ja juoksee sieltä yhteen väliseinien 3 kanssa.
Molemmat muovit voivat olla osallisena väliseinien rakenteessa. Niiden jakaantuminen väliseinissä riippuu molempien muovilaatujen määräsuhtees ta, niiden sulatteiden Teologisista ominaisuuksista:, ja suulakkeiden geometriasta.
Tultuaan ulos suulakkeen suusta nauha kulkee sinänsä tunnetulla tavalla tyhjömuovau skanava n läpi, jossa se jäähdytetään pehmenemisiämpöti1a n alapuolelle. Sen jälkeen se paloitellaan halutun pituisiksi laatoiksi.

Claims (5)

5 78866
1. Monikerroksinen ontelolaatta, joka käsittää kaksi pääasiallisesti tasomaista ulkoseinämää (1, 2) ja niitä yksikappalei-sesti yhdistävät väliseinät (3), jolloin ainakin toinen ulko-seinämä koostuu ainakin kahdesta tarttuvasti yhdistetystä, erilaisia muoveja olevasta kerroksesta, tunnettu siitä, että ulkoseinämän kantava kerros (4) on akryylilasia ja muodostaa yli puolet ulkoseinämän kokonaispaksuudesta ja että akryylilasikerroksen sisäpuoliseen sivuun on sovitettu ohuempi sisäkerros (5), joka on muovia, jolla on suurempi murtovenymä kuin akryylilasilla.
2. Patenttivaatimuksen 1 mukainen ontelolaatta, tunnet-t u siitä, että muovin, jolla on suurempi murtovenymä, murtovenymä on yli 5 %.
3. Patenttivaatimuksen 2 mukainen ontelolaatta, tunnet-t u siitä, että muovin, jonka murtovenymä on suurempi, murto-venymän suhde akryylilasin murtovenymään on yli 1,3:1.
4. Patenttivaatimuksen 1 mukainen ontelolaatta, tunnet-t u siitä, että sisäkerros (5) on muodostettu polykarbonaatti-muovista tai sellaisesta akryylilasilaadusta, jonka murtovenymä on kantavan kerroksen (4) akryylilasin murtovenymää suurempi.
5. Menetelmä patenttivaatimusten 1-4 mukaisen monikerroksisen ontelolaatan valmistamiseksi muodostamalla kaksi nauhaa termoplastisesta muovausmassasta ja muovaamalla toinen sivu ainakin yhdestä nauhasta, muodostamalla väliseinät ja yhdistämällä molemmat nauhat väliseinien (3) yhteenvirtauksella toisen nauhan (6) kanssa tai siitä muodostettujen väliseinien kanssa termoplastisessa tilassa ja jäähdyttämälä näin muodostetut nauhat ja väliseinät alle pehmenemislämpötilan, tunnet- 6 78866 t u siitä, että ainakin toinen nauha (6-7) valmistetaan termoplastista akryylilasia olevan osanauhan (7) ja termoplastista muovia, jolla on suurempi murtovenymä, olevan osanauhan (6) tarttuvalla sidoksella termoplastiseksi kaksoisnauhaksi (6 - 7) ja että tämän kaksoisnauhan se sivu, johon muovia, jolla on suurempi murtovenymä, oleva osanauha (6) nojaa, muovataan väliseiniksi tai annetaan virrata yhteen toisen nauhan kanssa. 7 78866
FI834247A 1983-02-03 1983-11-21 Flerskiktig haolplatta och foerfarande foer dess framstaellning. FI78866C (fi)

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EP0118683A3 (en) 1987-08-19
EP0118683B1 (de) 1988-08-31
DE8302842U1 (de) 1983-07-07
ATE36826T1 (de) 1988-09-15
FI78866B (fi) 1989-06-30
FI834247A (fi) 1984-08-04
EP0118683A2 (de) 1984-09-19
NO161545B (no) 1989-05-22
JPS59146849A (ja) 1984-08-22
DE3473741D1 (en) 1988-10-06
NO834588L (no) 1984-08-06
NO161545C (no) 1989-08-30
FI834247A0 (fi) 1983-11-21
US4569875A (en) 1986-02-11

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