EP0260435B1 - Bauverbundplatte - Google Patents

Bauverbundplatte Download PDF

Info

Publication number
EP0260435B1
EP0260435B1 EP87111611A EP87111611A EP0260435B1 EP 0260435 B1 EP0260435 B1 EP 0260435B1 EP 87111611 A EP87111611 A EP 87111611A EP 87111611 A EP87111611 A EP 87111611A EP 0260435 B1 EP0260435 B1 EP 0260435B1
Authority
EP
European Patent Office
Prior art keywords
laths
core panel
composite building
building element
frame
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP87111611A
Other languages
English (en)
French (fr)
Other versions
EP0260435A1 (de
Inventor
Jean-Philippe Jacques Deblander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to AT87111611T priority Critical patent/ATE50612T1/de
Publication of EP0260435A1 publication Critical patent/EP0260435A1/de
Application granted granted Critical
Publication of EP0260435B1 publication Critical patent/EP0260435B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • E04C2/386—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a frame of unreconstituted or laminated wood
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • E04C2/382—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a frame of concrete or other stone-like substance
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • E04C2/384—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a metal frame

Definitions

  • the present invention relates to composite building elements and in particular to composite building panels which have various applications in the building industry, for example for building walls, floors, ceilings and roofs.
  • One popular method of building a wall is to build a timber frame which is then filled with glass wool. Since these timber frames are not highly shear resistant, a plywood sheathing is usually nailed to the timber frame. However, the plywood sheathing is relatively expensive and it does not always provide the building element with sufficient shear resistance. Insufficient shear resistance is also experienced when a chip board is nailed to the timber frame instead of plywood. The use of a chip board is furthermore disadvantageous because of the excessive weignt of the chip board which is required to obtain satisfactory strength.
  • GB patent specification 1 587 012 it is suggested to close a wall space defined by the timber frames of a building with a foamed polyurethane or a foamed polystyrene.
  • such timber frames of which the wall space is filled with foamed polyurethane or polystyrene sheets have several disadvantages when building the walls.
  • the size of the frame and of the foam sheet or slab must be very well adjusted to each other in order to avoid gaps between the frame and the foam sheet or slab.
  • Special seals have been suggested in GB patent specification 1 587 012 in order to fill such difficult to avoid gaps, but such seals increase the installation costs.
  • the timber frame has much lower insulation properties than the foam sheet or slab and therefore forms thermal bridges in the building panel.
  • a module block which consists of two parallel fiber plates. To each fiber plate two parallel laths are fixed. For connecting the two fiber plates with each other, side plates, for example fiber plates or chip boards, are fixed to the laths perpendicularly to the first two fiber plates. Between the four plates, an insulation material such as rock-wool is placed. However, fiber-plates, ply-wood or chip boards of heavy weight are required for providing sufficient shear strength to the module block. Furthermore, the side plates produced of fiber plates, chip board or ply-wood boards have insufficient insulation properties and therefore form thermal bridges in the module block.
  • a composite building element which does not only have good insulation properties but also high strength, in particular high shear resistance. It is also desirable to provide a building element which can be prefabricated and easily installed and which preferably has a relatively low weight.
  • the present invention provides a composite building element which comprises
  • the composite building element of the present invention has a surprisingly high resistance to shearing forces.
  • the composite building element of the present invention does not provide thermal bridges.
  • the composite building element comprises a core panel 1 of a rigid foamed material of an expanded synthetic resin, such rigid foamed polyurethane or rigid foamed polystyrene.
  • the core panel 1 is a rigid extruded polystyrene panel which has a density of from 20 kg/m , preferably of from 30 kg/m 3 , to 60 kg/m 3 , preferably to 50 kg/m 3 .
  • the core panel is moisture resistant.
  • the thickness of the core panel 1 depends on the desired insulating properties and strength of the building element. Preferably, the thickness is from 30 mm to 200 mm, most preferably from 50 mm to 120 mm.
  • the length and width of the panel is not critical. Usual lengths are from 2 to 6 m, preferably from 2 to 3 m. Usual widths are from 0.6 to 12 m, preferably from 1 to 5.
  • a stiff back frame 3 and a stiff front frame 5 are fixed to the back surface 2 and front surface of the core panel 1.
  • the frames 3, 5 have essentially the same length and same width as the length and width of the core panel 1, however, it is not necessary that the length and width of the frames 3, 5 are exactly the same as those of the core panel 1.
  • the back frame 3 consists of a first set of at least two parallel laths 7a, 7b and a second set of at least two parallel laths 7c, 7d which are perpendicular to the laths 7a, 7b. As illustrated by Fig. 1, the back frame 3 can be subdivided by one or more additional laths 8 which are preferably parallel to the main laths 7c, 7d.
  • the laths 7a, 7b, 7c, 7d and 8 can be produced of any sufficiently strong and stiff material to resist forces which are applied perpendicularly to the smallest cross-section of the back frame 3, i.e. to the cross-section along line A - A and perpendicularly to the plane defined by the back frame 3.
  • Usual materials are for example wood, metal, concrete or hard plastic materials.
  • the main laths 7a, 7b, 7c, 7d have preferably a cross-section of from 20 x 20 mm to 150 x 150 mm, most preferably of from 50 x 50 mm to 100 x 100 mm.
  • the additional lath 8 can have the same cross-section.
  • the cross-section of the additional lath 8 is smaller, for example from 20 x 20 mm to 80 x 80 mm, preferably from 25 x 25 mm to 50 x 50 mm.
  • Fig. 1 illustrates that the back frame 3 and the front frame 5 are not in contact with each other. Therefore, the composite building element of the present invention does not provide the undesired thermal bridges through the thickness of the building element.
  • the back frame 3 and front frame 5 can be fixed to the core panel 1 in any suitable means, preferably by applying an adhesive such as a polyurethane adhesive between the adjacent surfaces of the back frame 3 and the core panel 1 and between the adjacent surfaces of the front frame 5 and the core panel 1.
  • the main back laths 7a, 7b, 7c, 7d and optionally the additional back lath 8 can be fixed to each other by any suitable means to build the back frame 3 such as nailing or gluing.
  • the corners of the back frame 3 can be reinforced, for example by metal plates which are fixed to the corners of the back frame 3 and to the core panel 1.
  • Fig. 2 illustrates the same embodiment of the composite building element of the present invention as Fig. 1, however, Fig. 2 represents a perspective front view on the building element.
  • Fig. 2 illustrates a core panel 1 as described with reference to Fig. 1.
  • a stiff front frame 5 is fixed to the front surface 12 of the core panel 1.
  • the front frame 5 is built of a first set of at least two parallel laths 9a, 9b and a second set of at least two parallel laths 9c, 9d which are perpendicular to the first set of laths 9a, 9b.
  • the frame consisting of the main laths 9a, 9b, 9c, 9d can be subdivided by one or more optional additional front laths 10.
  • the front laths 9a, 9b, 9c, 9d and 10 can have the same dimension as the back laths 7a, 7b, 7c, 7d and 8 described with reference to Fig. 1. Cut out along the edges of the front surface 12 of the core panel 1 are rabbets (see 14a and 14b in Fig. 3) which have essentially the same widths and depths as the widths and thickness of the main front laths 9a, 9b, 9c, 9d.
  • the front surface 12 of the core panel 1 is further provided with a groove (see 16 in Fig. 3) extending parallel to the edges of the core panel 1 and which has essentially the same dimensions as the cross-section of the additional front lath 10.
  • the front laths 9a, 9b, 9c, 9d and 10 are placed in these rabbets and this groove and fixed to the core panel 1.
  • the back surface 2 of the core-panel 1 can be provided with rabbets and/or one or more grooves.
  • Fig. 1 and 2 illustrate composite building elements of rectangular shape.
  • the core panel does not have a rectangular back or front surface but that is has surfaces of a triangular or trapezoid shape.
  • Such shapes are for example preferred when building the portion of a wall which will be in contact with a sloped roof.
  • the two stiff frames are adjusted to the shape of the core panel.
  • each frame consists of one set of at least two parallel laths, a lath which is perpendicular to this set of parallel laths and one lath which is neither parallel nor perpendicular to this set of parallel laths.
  • Fig. 3 illustrates a cross-section along the line A - A in Figs. 1 and 2.
  • Fig. 3 illustrates how the main back laths 7c, 7d and the additional back lath 8 are arranged on the back surface 2 of the core panel 1.
  • the front surface 12 of the core panel 1 is provided with rabbets 14a, 14b and with a groove 16.
  • the main front laths 9c, 9d and the additional front lath 10 are placed in these rabbets 14a, 14b and the groove 16 respectively and fixed to the core panel 1.
  • Fig. 4 illustrates how the composite building panel described with reference to Fig. 3 can be combined with other materials to build a complete wall.
  • An interior finishing layer 20, for example a wood sheet or a gypsum plaster board is attached to the main back laths 7c, 7d and to the additional lath 8 as well as to the main back laths 7a, 7b (not shown).
  • a space 22 is built which allows any pipes and electric cables to be fit into the building element in a convenient way.
  • the front surface 12 of the core panel 1 is covered with an external rendering 24.
  • Fig. 5 illustrates a cross-section through another embodiment of the composite building element of the present invention.
  • the main front laths 9e, 9f, the main front laths 9a, 9b (not shown) and the additional front lath 11 are not flush with the front surface 12 of the core panel 1 but are protruding.
  • An external finishing material 26 such as a wood cladding can be attached to the main front laths 9e, 9f, to the main front laths 9a, 9b (not shown) and to the additional front lath 11 whereby a second space 28 in addition to space 22 is provided.
  • a type of cross-section of the main back laths 7e, 7f and of the additional back lath 18 is illustrated which allows the attachment of a fire protection material 30, such as a gypsum layer, directly to the back surface 2 of the core panel 1.
  • a fire protection material 30 such as a gypsum layer
  • Fig. 7 illustrates a cross-section through an embodiment of the composite building element similar to that illustrated by Fig. 5.
  • the front surface 12 of the core panel 1 is not provided with grooves or rabbets.
  • the following example illustrates the composite building element of the present invention and its shear resistance compared to known building elements used in the industry.
  • the core panel consists of rigid extruded polystyrene foam of a density of about 45 kg/m 3 .
  • the length of the panel is 240 cm, the width 120 cm and the thickness 80 mm.
  • the stiff back frame is built of four main spruce laths of 75 mm x 55 mm cross-section and an additional spruce lath of 40 mm x 55 mm cross-section. In the corners, the main timber frame built by the spruce laths of 75 mm x 55 mm cross-section is reinforced by diagonally divided square steel nail plates of 300 mm side length and a thickness of 2 mm.
  • the steel plates are nailed irregularly and glued with a polyurethane adhesive to the back frame and to the core panel.
  • the stiff front frame is built of four main spruce laths and an additional spruce lath of 50 mm x 30 mm cross-section.
  • the back and front timber frames are glued with a polyurethane adhesive to the back and front surfaces of the core panel.
  • a spruce frame of 240 cm length and the same width is produced of
  • the shear resistance of this frame is provided by a sheet of 8 mm plywood nailed with nails (2.1 x 45 mm) on each lath and stud of the frame, every 15 cm on the studs and the two outside laths and every 30 cm on the three middle laths.
  • a gypsum plaster board is nailed to the other side of the frame. The space between these two faces is filled with a glass fiber insulation of 100 mm thickness.
  • the same frame as described in comparative Example A is produced.
  • the shear resistance is provided on both sides by a sheet of 12 mm chipboard nailed with nails (2.8 x 55 mm) every 15 cm on the studs and the two outside laths and every 30 cm on the three middle laths of the frame.
  • the space between the two chipboard sheets is filled with a glass fiber insulation of 100 mm thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Panels For Use In Building Construction (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Claims (7)

1. Verbundbauelement enthaltend
a) eine Kernplatte (1) aus hartem aufgeschäumten Material eines expandierten synthetischen Harzes und
b) zwei steife Rahmen (3, 5) von im wesentlichen der gleichen Länge und Breite wie die Länge und Breite der Kernplatte (1), die mit der hinteren und vorderen Oberfläche (2, 12) der Kernplatte (1) verbunden sind.
2. Verbundbauelement nach Anspruch 1, dadurch gekennzeichnet, daß jeder Rahmen (3, 5) aus einem ersten Satz aus mindestens zwei Latten (7a, 7b, 9a, 9b) und einem zweiten Satz von Latten (7c, 7d, 7e, 7f, 8, 9c, 9d, 9e, 9f, 10, 11) besteht, wobei die Latten des zweiten Satzes jeweils parallel zueinander und senkrecht zu mindestens einer Latte des ersten Satzes angeordnet sind.
3. Verbundbauelement nach Anspruch 1, dadurch gekennzeichnet, daß jeder Rahmen (3, 5) aus einem ersten Satz von mindestens zwei parallelen Latten (7a, 7b, 9a, 9b) und einem zweiten Satz von mindestens zwei parallelen Latten (7c, 7d, 7e, 7f, 8, 9c, 9d, 9e, 9f, 10, 11) besteht, wobei der zweite Satz von Latten senkrecht zum ersten Satz von Latten angeordnet ist, und die Latten einen Querschnitt von 20 mm x 20 mm bis 150 mm x 150 mm aufweisen.
4. Verbundbauelement nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Latten der Rahmen aus Holz, Metall oder Zement sind.
5. Verbundbauelement nach jedem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß die Kernplatte (1) eine extrudierte Polystyrolhartschaumplatte mit einer Dichte von 20 - 60 kg/m3 ist.
6. Verbundbauelement nach Anspruch 5, dadurch gekennzeichnet, daß die Kemplatte (1) eine extrudierte Polystyrolhartschaumplatte mit einer Dichte von 30 - 50 kg/m3 ist.
7. Verbundbauelement nach jedem der Ansprüche 1 - 6, dadurch gekennzeichnet, daß die Vorder- und/oder Rückseite (12, 2) der Kernplatte (1) mit einem Falz (14a, 14b) entlang der Kanten der Kernplatte (1) und/oder mit einer oder mehreren Nuten (16) versehen sind.
EP87111611A 1986-08-15 1987-08-11 Bauverbundplatte Expired - Lifetime EP0260435B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87111611T ATE50612T1 (de) 1986-08-15 1987-08-11 Bauverbundplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3290/86A CH670671A5 (de) 1986-08-15 1986-08-15
CH3290/86 1986-08-15

Publications (2)

Publication Number Publication Date
EP0260435A1 EP0260435A1 (de) 1988-03-23
EP0260435B1 true EP0260435B1 (de) 1990-02-28

Family

ID=4252786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111611A Expired - Lifetime EP0260435B1 (de) 1986-08-15 1987-08-11 Bauverbundplatte

Country Status (8)

Country Link
EP (1) EP0260435B1 (de)
AT (1) ATE50612T1 (de)
AU (1) AU596683B2 (de)
CH (1) CH670671A5 (de)
DE (1) DE3761775D1 (de)
ES (1) ES2013279B3 (de)
NO (1) NO171647C (de)
NZ (1) NZ221389A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ528776A (en) 2001-04-03 2006-08-31 James Hardie Int Finance Bv Two-piece siding plank, methods of making and installing
WO2004007193A2 (en) 2002-07-16 2004-01-22 James Hardie International Finance B.V. Packaging prefinished fiber cement products
US8281535B2 (en) 2002-07-16 2012-10-09 James Hardie Technology Limited Packaging prefinished fiber cement articles
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
HRP20021035B1 (en) * 2002-12-30 2011-02-28 Jurić Rozarijo Wall panels for fast construction of structures
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
AU2007236561B2 (en) 2006-04-12 2012-12-20 James Hardie Technology Limited A surface sealed reinforced building element
GB201009727D0 (en) * 2010-06-11 2010-07-21 Module Home Future Bvba Building system
DE102014112987A1 (de) * 2014-09-09 2016-03-10 Holz Element Produktion Gmbh & Co. Kg Modulelement
JP6386430B2 (ja) * 2015-09-14 2018-09-05 大建工業株式会社 化粧目地付きパネル及びドア

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305986A (en) * 1962-08-07 1967-02-28 Foam Products Corp Insulated enclosures and panels therefor
SE405029B (sv) * 1977-04-19 1978-11-13 Samuelsson Sture Lennart Modulblock och modulsystem for husbyggnad samt sett att tillverka modulblock
CA1124482A (en) * 1978-06-28 1982-06-01 Cano Thermo Systems Inc. Panel structure and building structures made therefrom
DE3440297A1 (de) * 1984-11-05 1986-05-22 Greschbach, Manfred, 7637 Ettenheim Plattenfoermiges wandelement

Also Published As

Publication number Publication date
CH670671A5 (de) 1989-06-30
NO171647B (no) 1993-01-04
DE3761775D1 (de) 1990-04-05
ATE50612T1 (de) 1990-03-15
AU596683B2 (en) 1990-05-10
AU7673487A (en) 1988-02-18
NO171647C (no) 1993-04-14
NZ221389A (en) 1991-12-23
ES2013279B3 (es) 1990-05-01
NO873431D0 (no) 1987-08-14
NO873431L (no) 1988-02-16
EP0260435A1 (de) 1988-03-23

Similar Documents

Publication Publication Date Title
US6205729B1 (en) Asymmetric structural insulated panel
US5899037A (en) Composite wall structure
US10024057B2 (en) Construction panel system and methods of assembly thereof
US6209284B1 (en) Asymmetric structural insulated panels for use in 2X stick construction
US5685124A (en) Wall, ceiling or roof elements with heat insulation properties on one side and sound insulation properties on the other
US4304080A (en) Construction beam
US4603531A (en) Structural panels
US5483778A (en) Modular panel system having a releasable tongue member
US4896469A (en) Prefabricated building panel assembly
US5475961A (en) Vertical post assembly
EP0260435B1 (de) Bauverbundplatte
EP0536161A1 (de) Fussbodenkonstruktion.
US5617700A (en) Prefabricated building panel
WO1994013897A1 (en) Foam sandwich enclosure with interlocking integral frame
US6032434A (en) Half-timber frame and half-timber compartment element
US6330775B1 (en) Prefabricated building wall structure
DE4413953A1 (de) Wand-, Decken-, oder Dachelement für Gebäude in Tafelbauart
US20040226255A1 (en) Composite beam
FI98398C (fi) Seinäelementti
US20050102962A1 (en) Timber block
JP7504111B2 (ja) 建物間柱、このような建物間柱を備える壁構造体、及び壁構造体を形成するための方法
KR20130055945A (ko) 구조용 목재가 포함된 단열복합패널 및 그 단열복합패널을 이용한 벽체 시공 방법
JPH11131683A (ja) 複合パネル
US4490955A (en) Residential wall construction
JP2561588B2 (ja) 建物における間仕切りの施工方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19880603

17Q First examination report despatched

Effective date: 19890605

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THE DOW CHEMICAL COMPANY

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900228

Ref country code: CH

Effective date: 19900228

REF Corresponds to:

Ref document number: 50612

Country of ref document: AT

Date of ref document: 19900315

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3761775

Country of ref document: DE

Date of ref document: 19900405

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 87111611.7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000619

Year of fee payment: 14

Ref country code: GB

Payment date: 20000619

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000627

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000630

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20000717

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000718

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20000808

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000818

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010811

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010812

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010812

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010831

BERE Be: lapsed

Owner name: THE DOW CHEMICAL CY

Effective date: 20010831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020301

EUG Se: european patent has lapsed

Ref document number: 87111611.7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020430

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050811