LV11446B - Fireproof panel and a method for its manufacture - Google Patents

Fireproof panel and a method for its manufacture Download PDF

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Publication number
LV11446B
LV11446B LVP-95-86A LV950086A LV11446B LV 11446 B LV11446 B LV 11446B LV 950086 A LV950086 A LV 950086A LV 11446 B LV11446 B LV 11446B
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LV
Latvia
Prior art keywords
resin
fireproof
temperature
sheet
pressing
Prior art date
Application number
LVP-95-86A
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English (en)
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LV11446A (lv
Inventor
Adriano Lusardi
Original Assignee
Eurocompositi Srl
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Filing date
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Application filed by Eurocompositi Srl filed Critical Eurocompositi Srl
Publication of LV11446A publication Critical patent/LV11446A/lv
Publication of LV11446B publication Critical patent/LV11446B/en

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Classifications

    • 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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—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 discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • B32B17/04—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/067—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of fibres or filaments
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
    • B32B17/10055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet with at least one intermediate air space
    • 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
    • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/105—Ceramic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • B32B2309/022—Temperature vs pressure profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • B32B2309/025—Temperature vs time profiles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C08J2361/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols with monohydric phenols
    • C08J2361/10—Phenol-formaldehyde condensates
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y10S428/921—Fire or flameproofing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polymers & Plastics (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Panels For Use In Building Construction (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Reinforced Plastic Materials (AREA)

Claims (13)

  1. LV 11446 IZGUDROJUMA FORMULA 1. Ugunsdrošs panelis, kas atšķiras ar to, ka tajā ir vismaz viena loksne, kas satur stikla šķiedras slāni, piesātinātu vismaz ar viena veida ugunsdrošiem sveķiem bez šķīdinātāja.
  2. 2. Ugunsdrošs panelis pēc formulas 1. punkta, kas atšķiras ar to, ka sveķi ir uz fenolformaldehīda bāzes.
  3. 3. Ugunsdrošs panelis pēc formulas 2. punkta, kas atšķiras ar to, ka sveķi ir novolaksveķi LERIPHEN CM 1112.
  4. 4. Ugunsdrošs panelis pēc formulas 1. punkta, kas atšķiras ar to, ka tajā ir vismaz divas loksnes, kuras satur stikla šķiedras slāni piesātinātu ar vismaz viena veida ugunsdrošiem sveķiem bez šķīdinātāja.
  5. 5. Ugunsdrošs panelis pēc formulas 4. punkta, kas atšķiras ar to, ka tas satur vismaz vienu elementu, kurš sastāv no divām iepriekš minētām loksnēm un starp tām izvietotu alumīnija šūnveida struktūru.
  6. 6. Ugunsdrošs panelis pēc formulas 5. punkta, kas atšķiras ar to, ka minētais elements satur papildus loksni, saturošu stikla šķiedras slāni, piesātinātu ar vismaz vienu ugunsdrošu sveķu veidu bez šķīdinātāja un kam ir vismaz viens silikonalumīnija šķiedru pildījums starp vienu no minētajām divām loksnēm un šo papildus loksni.
  7. 7. Paņēmiens ugunsdroša paneļa izgatavošanai, kurš satur vismaz vienu loksni no stikla šķiedras, atšķiras ar to, ka tam ir sekojošas fāzes: - vienmērīgi uznes ugunsdrošos sveķus pulvera veidā bez šķīdinātāja uz stikla šķiedras kārtas ne mazākā daudzumā kā vismaz 5 grami sveķu uz 100 gramiem stikla šķiedras, - kārtu presē un karsē līdz temperatūrai, kura mīkstina sveķus, tik ilgi, kamēr tie kļūst mīksti, - kārtu presējot atkārtoti pie sveķu strukturizēšanās temperatūras, iegūst minēto loksni.
  8. 8. Paņēmiens pēc formulas 7. punkta, kas atšķiras ar to, ka ugunsdrošie sveķi ir fenolformaldehīda sveķi.
  9. 9. Paņēmiens pēc formulas 8. punkta, kas atšķiras ar to, ka presēšanas un sveķu mīkstināšanas fāzi realizē pie temperatūras 80 - 100 °C un spiediena 1,5 - 2 atmosfēras 5-7 minūtes ilgi.
  10. 10. Paņēmiens pēc formulas 9. punkta, kas atšķiras ar to, ka presēšanas un strukturizācijas fāzi realizē pie temperatūras 180 - 220 °C un spiediena 1,5-2 atmosfēras 5-7 minūtes ilgi. 2
  11. 11. Paņēmiens pēc formulas 10. punkta, kas atšķiras ar to, ka presēšanas-mīkstināšanas un strukturēšanas fāzes realizē, novietojot kārtu starp atbilstošas preses sakarsētām presvirsmām.
  12. 12. Paņēmiens pēc formulas 11. punkta, kas atšķiras ar to, ka pie sveķu presēšanas un 5 mīkstināšanas fāzes presvirsmas tiek uzkarsētas līdz 90 °C temperatūrai.
  13. 13. Paņēmiens pēc formulas 12. punkta, kas atšķiras ar to, ka pie sveķu presēšanas un strukturēšanas fāzes presvirsmas tiek uzkarsētas līdz 200 °C temperatūrai.
LVP-95-86A 1994-04-14 1995-04-04 Fireproof panel and a method for its manufacture LV11446B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT94MI000709A IT1276840B1 (it) 1994-04-14 1994-04-14 Pannello incombustibile e metodo per il suo ottenimento

Publications (2)

Publication Number Publication Date
LV11446A LV11446A (lv) 1996-08-20
LV11446B true LV11446B (en) 1997-02-20

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US (1) US6149971A (lv)
EP (1) EP0677380B1 (lv)
JP (1) JPH07279308A (lv)
KR (1) KR100317650B1 (lv)
CN (1) CN1118741A (lv)
AT (1) ATE192767T1 (lv)
AU (1) AU698434B2 (lv)
CA (1) CA2117881A1 (lv)
DE (1) DE69424403T2 (lv)
EE (1) EE9500023A (lv)
FI (1) FI944604A (lv)
IL (1) IL111136A (lv)
IT (1) IT1276840B1 (lv)
LT (1) LT3861B (lv)
LV (1) LV11446B (lv)
NO (1) NO313560B1 (lv)
PL (1) PL308076A1 (lv)
RU (1) RU2112845C1 (lv)
SG (1) SG67917A1 (lv)
ZA (1) ZA952684B (lv)

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CN1118741A (zh) 1996-03-20
EP0677380A3 (en) 1996-01-24
AU1615395A (en) 1995-10-26
ITMI940709A1 (it) 1995-10-14
ZA952684B (en) 1996-02-08
JPH07279308A (ja) 1995-10-27
KR100317650B1 (ko) 2002-11-16
ATE192767T1 (de) 2000-05-15
DE69424403D1 (de) 2000-06-15
LV11446A (lv) 1996-08-20
NO951419D0 (no) 1995-04-11
DE69424403T2 (de) 2001-01-04
AU698434B2 (en) 1998-10-29
KR950028911A (ko) 1995-11-22
SG67917A1 (en) 2001-07-24
LT3861B (en) 1996-04-25
EP0677380B1 (en) 2000-05-10
IL111136A (en) 1999-11-30
ITMI940709A0 (it) 1994-04-14
EP0677380A2 (en) 1995-10-18
FI944604A (fi) 1995-10-15
EE9500023A (et) 1995-12-15
CA2117881A1 (en) 1995-10-15
PL308076A1 (en) 1995-10-16
IL111136A0 (en) 1994-12-29
US6149971A (en) 2000-11-21
LT95040A (en) 1995-10-25
NO951419L (no) 1995-10-16
FI944604A0 (fi) 1994-10-03
NO313560B1 (no) 2002-10-21
RU2112845C1 (ru) 1998-06-10
RU94035651A (ru) 1996-09-10
IT1276840B1 (it) 1997-11-03

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