CN103153562B - Composite wooden material - Google Patents
Composite wooden material Download PDFInfo
- Publication number
- CN103153562B CN103153562B CN201180047233.1A CN201180047233A CN103153562B CN 103153562 B CN103153562 B CN 103153562B CN 201180047233 A CN201180047233 A CN 201180047233A CN 103153562 B CN103153562 B CN 103153562B
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- Prior art keywords
- wooden material
- composite wooden
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- adhesive
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of composite wooden material, does this composite wooden material have 200-550? kg/m
3density and the rigidity of 4000-12000MPa, described rigidity is according to standard EN? 4 crooked experiments of 789 record.Described composite wooden material comprises long fibre and adhesive, and long stapled coefficient of fineness is greater than 20, and adhesive has foaming structure.
Description
Technical field
The present invention relates to a kind of composite wooden material and production method thereof of applicable production bearing parts.
Background technology
Material tare weight represents the important material parameter of of bearing bending bearing parts.Because tare weight can cause slight warpage, thus low-density and have the material of enough high strength and rigidity than same mechanical performance but highdensity material advantageously.
When keeping Rigidity and strength constant simultaneously, the minimizing of the material weight of the reduction of density association is everlasting in the middle of ergonomics and logistics and is brought many benefits.Performance advantage associated by lighter weight and cost savings are just seemed (such as manual operation in most basic work, design and transport and mobile device time energy ezpenditure), and continue in handling procedure in the operation in each stage or afterwards, until finish using (assembling of such as structure division), even likely continue to last discarded.
In in recent years, people were constantly devoted to the density reducing composite wooden material.The basic idea of of nearly all light-duty timber framed construction is Dagwood sandwich structure, and wherein strong or hard material or the wooden object of solid at edge of materials region absorption pressure and pulling force, and can mainly transmit shearing force and normal force in intermediate layer.
Therefore, now by new development and improvement, commercially occurred that the paper substrate honeycomb plate of decades just experiencings recovery in Wood industry.Although these materials are low-density, their mechanical performance and resistance to water deficiency, so can not for bearing.
The raising of material property can be realized by the light material of sandwich sandwich structure and foam-like core body.But, owing to having high shear load on low-density intermediate layer, so when bend loading, low sheraing intensity can cause serious distortion.In addition, mechanical property is also almost inadequate for the use as bearing parts.
At present, when producing the composite wooden material be made up of long fibre and adhesive, timber that is rope strand shape, particulate or fiber can embed with adhesive, and is compressed by compression Sheet Metal Forming Technology subsequently, the pressing plate solidification that adhesive is heat-treated.This process result in material and compresses significantly, particularly evident at the fringe region of pressed sheet.Therefore, traditional panel material, as hard plate, fiberboard, oriented wood chipboard etc., and there is the situation of more or less different densities section in special wood materials such as Quetschholz, Scrimber, TimTek, Srimtec, SST etc. in whole plate thickness.In order to make substantially there is not density profile, the processing that all materials should compress through brute force, or use has very low-density panel material (such as, light weight wood wool board, low density fiberboard etc.).But these materials due to its intensity level lower, so can not the material of bearing be used as.
Just as explained above, the timber compoment of conventional panels and the such as special timber of Quetschholz, Scrimber, TimTek, Srimtec, SST etc. have passed through powerful compression all aborning.Except the increase of density, this punch process is also relevant with the cyto-architectural compression (collapse) of timber.If absorption moisture, the expansion of the strong hygroscopicity of timber and cell membrane can partly reverse this distortion.But this can cause the expansion of compression section, same whole panel material also can expand.
In addition, due to the compression of marginal zone, the inside that we are difficult in this way heat is incorporated into material is for solidifying panel material.For this reason, these methods generally rely on the impact of steam, to ensure enough heat transfer.But in order to utilize steam impringement, long fibre and/or adhesive must have enough (remaining) moisture.If do not have steam impringement, the technology that panel is produced is implemented must be difficult (particularly when less dense planes plate material).
Although experienced by a large amount of trials, market both do not combine low density and rigidity yet and be suitable for bearing element, having turn avoid in production the composite wooden material compressing the shortcoming brought.Therefore the present invention is exactly to make the composite wooden material meeting These characteristics.
Summary of the invention
This object can realize according to a kind of composite wooden material of the present invention, and described composite wooden material has 200-550kg/m
3density and 4, the rigidity of 000-12,000MPa, described rigidity measures in 4 crooked experiments according to standard EN 789, described composite wooden material comprises the long fibre of a draw ratio (length of fiber and the ratio of thickness) more than 20 and adhesive, and described adhesive has foaming structure.
Composite wooden material according to the present invention has 200-550kg/m
3density, preferred 300-550kg/m
3density.4,000-12,000MPa according to the rigidity that standard EN 789 measures in 4 crooked experiments, preferably 5,000-12,000MPa, particularly preferably 6,000-12,000MPa.In an especially preferred embodiment, composite wooden material has 300-550kg/m
3density and the rigidity of 6,000-12,000MPa.
The wooden long fibre that composite wooden material according to the present invention comprises, its draw ratio (length of fiber and the ratio of thickness) is greater than 20.
The long fibre preferred length used is 100-400 millimeter, is particularly preferably 150-300 millimeter.But, it will be apparent to those skilled in the art that the fiber used still can contain a certain amount of shorter fiber, and this situation can not be excluded outside protection scope of the present invention owing to producing.
Under composite wooden material according to the present invention is also included in solid state, there is the adhesive of foaming structure.Preferred adhesive mainly has the foaming structure of micropore.Particularly preferred adhesive has so a kind of foaming structure: the hole of 90-95% has the aperture of scope at 30-500 micron, and be preferably 50-300 micron, above-mentioned measured value is obtained by microscopic material section.
In a preferred embodiment, for the adhesive of composite wooden material according to the present invention, can free foaming time, formation density is 30-300kg/m
3foam, be preferably 80-200kg/m
3foam.
In order to the density gained freedom during foaming, will also pour in an open-topped container by unreacted adhesive.Due to chemical reaction, adhesive can upwards foam, and freely can be expanded by opening.After solidification, overflowing foam can divest totally with knife.The density of the adhesive of free foaming, can calculate from the container volume previously obtained and tare weight and lathery container weight.
In the present invention, the adhesive that can form the foaming structure of closed pore is preferably used.Fiber in composite wooden material of the present invention is almost complete to be wrapped up by foam, and nearly all interfibrous space all has foam-filled, and the foam of this hole-closing structure can reduce and prevents moisture from infiltrating even completely.This has shown excellent performance when just enough making composite wooden material of the present invention be exposed to wet environment, and such as in wet environment, material only has slight expansion.
Therefore, composite wooden material of the present invention, compared with traditional wood materials, can reduce expansion rate significantly when contact wetting, quite even lower with the expansion rate of solid wood.And the expansion rate of conventional wooden material generally can exceed much than solid wood.Such as, use dragon spruce long fibre make composite wooden material of the present invention, according to standard DIN52364 measure thickness swelling rate between 2.7% and 6%, according to standard EN 317 measure expansion rate then between 1.5% and 5%.Comparatively speaking, 4% to 6% is approximately according to the expansion rate of the solid wood dragon spruce of standard DIN52364 measurement.Accordingly, the hardboard using dragon spruce to make or the expansion rate of oriented wood chipboard are then 7% to 30%.
In order to further reduce the expansion rate of composite wooden material; the long fibre used can carry out modification by some suitable measures before deep processing; such as; (1) acetylation; or (2) with suitable resin, as melamine resin or chemicals, as DMDHEU floods; or (3) heat modification, or the measure that (4) other known improvement is expanded.Modified, the expansion caused because fiber absorbs moisture is reduced, and therefore the overall expansion rate of composite wooden material is very low, is no more than 2% to 4%.Due to its thinner thickness, can be impregnated easily according to the long fibre used in composite wooden material of the present invention.In contrast, solid wood seldom can be impregnated, so the modification of solid wood often failure.
In addition, in chemical method, the timber after to dipping is often needed to heat-treat.Because heat can more promptly surround whole timber, undersized long fibre used according to the invention also than solid wood advantageously.The heat treatment that this modification needs, even all can be incorporated in the production stage of composite wooden material of the present invention more easily by part.
According to the present invention, the adhesive of use is preferably the adhesive of Polymers.Such as, epoxy resin, isocyanates (comprising polyurethane), melamine, urea, phenol resin foam or their mixture can use.Particularly preferably use polyurethane system, such as, one or Multi-component Polyurethane system, particularly two-component polyurethane systems.But also can use thermoplastic foam, as polystyrene (as expanded polystyrene (EPS) EPS or polystyrene foam plate EPX).
In a further preferred embodiment, composite wooden material of the present invention also contains particulate in addition, such as, and can by the ferric oxide particles of field excitation.When using this particulate, foaming and solidification that applied field (such as, by electromagnetic induction, microwave, high frequency, radiation etc.) causes (startup) and/or speed adhesive can be passed through.Above-mentioned particle effectively can mix in adhesive before production composite wooden material, but they also can be mixed respectively.
Alternatively, we also can utilize heat, and hot-air or steam start and/or the foaming of speed adhesive and solidification process.
In addition, composite wooden material of the present invention can comprise suitable additive, such as foaming agent, filler, pigment, fortifying fibre (nanometer, fento or long fibre), stove fire or Wood protecting agent, and improves the articles for use etc. expanded.These additives both can be added in adhesive, also can be incorporated in material respectively.In mode well known to those skilled in the art, such additive can give composite wooden material with special character, as larger hardness or shear strength, lasting durability, stronger resistance to water etc.
Composite wooden material of the present invention can be obtained by following steps:
A) long fibre is produced;
B) long fibre is arranged;
C) binding agent is applied;
D) stamping machine is closed; And
E) adhesive foaming.
In the method according to the invention, adhesive to be applied on the long fibre of alignment (sequence of steps: a, b, c, d and e).In addition, adhesive also can before arrangement long fibre application (sequence of steps: a, c, b, d and e).
Said method can carry out easily continuously, such as, utilizes coil stamping machine.
In order to produce composite wooden material of the present invention, long fibre wants dried and unidirectional (namely parallel) arrangement in large quantities on pressing plate or pressing mold.Adhesive to be applied between long fibre and/or on.The application of adhesive, can utilize existing method in wood industry to implement, such as spraying or with glue or section mixer.
In the method for a preferred embodiment of the present invention, the foamed time of adhesive needs to control, and starts mainly after stamping machine is closed to make foaming process.This means that adhesive system is by Chemical Control, the time started of foaming is delayed by.Therefore, stamping machine or press mold can be closed before foaming is significantly expanded.
When closed stamping machine or pressing mold, long fibre, preferably only by minimal compression, makes the density of the composite wooden material produced excessively can not depart from the density of the timber of use.Long fibre due to method of the present invention only has and is compressed, so the expansion contacting with water or be soaked in water occurred subsequently can be minimized or avoid by minimum.Therefore, swell value attainable scope to be positioned at or lower than the range of expansion of the timber used.Compared with traditional wood materials, this is an important advantage, because traditional arrangement material has very high wood compression rate, therefore when contacting with water, traditional timber will exceed much than using the expansion rate of solid wood.
In press forming die after closed or stamping machine, the die pressure be applied in from outside on the one hand has an effect, and diel is foamed by adhesive on the other hand, inside also produces pressure, most of adhesive is made fully to penetrate long stapled network, and long stapled surface described in most of adhesive complete wetting.Therefore, long fibre is surrounded by adhesive matrix, and obtains good protection thus to avoid absorbing moisture.
Because adhesive is introduced in long stapled network by the expansion of himself, so can form the homogeneous material that has uniform density, wherein nearly all space is full of by foaming structure, and fiber is almost complete in foam encirclement (sealing).
In addition, according to method of the present invention, especially when using two component polyurethane system as adhesive, advantageously: only need to provide negligible heat in order to start solidification.Required heat can introduce (such as 30 to 90 DEG C, preferably 50 DEG C) by long stapled slight preheating.
Because adhesive only contacts with long fibre before being about to solidification, the adhesive of 100% can be used for gummed and " encapsulation " core fiber substantially.
If can control adhesive system, so it just solidifies completely when punching press, and then stamping machine can be opened immediately again.Even if the panel according to composite wooden material of the present invention does not harden completely, different from traditional timber panel, this panel also can not by so-called Crack failure.If there is the situation of any Post RDBMS, this can cause the rear expansion of some degree of composite wooden material of the present invention.
Composite wooden material of the present invention is suitable for producing all products be made up of solid wood or wood materials, such as hardboard, oriented wood chipboard etc.Because the density of composite wooden material of the present invention is lower, so make the product produced with composite wooden material of the present invention have the weight of one also lighter.
Use composite wooden material of the present invention, especially favourable to following product: because this series products is used for outside non-protected object, except weight, also will the reservation of dimensional stability when contact wetting and strength and stiffness.Above-mentioned product comprises:
---template product, as template main beam and part object, as flange or gusset,
---coating or uncoated flat board and part object, as intermediate layer or top layer,
---working face platform and protective scaffold,
---the template product of the 1-of circle or flat pattern, 2-or 3-dimension, for creating or supporting template face, and
---loss template (lostformwork) or the part still retained in the structure.
Use composite wooden material of the present invention can benefit the production of product, comprising:
---the timber buildings beam be made up of solid matter, or there is cavity, or wherein parts as flange or gusset (advantage: light weight, performance is homogeneous and do not have weak spot, such as, node in solid wood; Also crossbeam (beam of I type beam or other metalloid beam cross section optimized) can be produced),
---wood structure plate and for furniture structural slab (advantage: at relevant electrostatic, expansion, moisture resistance, performance and glued board alike, also have very light weight and Economic productivity),
---the part (top layer, intermediate layer) of wood structure plate,
---be directed predominantly perpendicular to the intermediate layer of machine direction, described intermediate layer produces from wooden unit, to be parallel to the direction of fiber, by cutting (advantage: lightweight perpendicular to machine direction, almost there is no thickness swelling, economical production (as ripple Sa cork wood end grain substitute))
---the sandwich battenboard be made up of long fibre intermediate layer light especially, has the load-bearing top layer be made up of suitable material, as veneer, glued board even acrylic panel, has intermediate layer that is vertical or flat grain,
---the uniform plate material of " thick wooden boards "-be suitable for wall and ceiling, thickness be 5 centimetres to being greater than 20 centimetres (advantages: weight, heat insulation, electrostatic, moisture-proof),
---there is the thick wooden boards (advantage: see above, weight is lighter, saves material) of cavity
---multiple section bars that solid material is made, or there is the cavity (advantage: can not have material unaccounted-for (MUF), electrostatic loss, the loss in weight when section bar is produced) being suitable for construction set, window, door and furniture
---for the plate of Rail car manufacture, beam and section bar (advantage: weight, electrostatic, protection against the tide)
---for the circle of the timber structure of Rail car manufacture and the part of pancake two and three dimensions mould, interior decoration and furniture (advantage: almost any shape can be produced, electrostatic, weight).
Embodiment
Long fibre is dry by current of warm air (50 ° of C), and deposits a couple of days under the room temperature of 20 DEG C He in 65% relative air humidity, thus produces the timber that humidity is about 12%.210 grams of long fibres are arranged in parallel as far as possible accurately.Be heated to 50 DEG C in the aluminum die (30 × 12 centimetres) that the fiber of 50% is placed into, and soaked by 60 grams of two component polyurethanes (RAMPF numbering 80L86/4-1) equably.Then, 50% remaining fiber is placed in a mold, and close die, make the long stapled height be inserted into can be compressed into 16 millimeters.Due to the chemical reaction of the moisture in timber and two component polyurethane, water can produce foam intensely.After 30 minutes, foam is fully cured, and composite wooden material takes out from mould.
Claims (28)
1. composite wooden material, the density of described composite wooden material is 200-550kg/m
3it is characterized in that, be 4,000-12,000MPa according to the rigidity that standard EN 789 is measured in 4 bend tests, described composite wooden material comprises draw ratio (length of fiber and Thickness Ratio) and is greater than the long fibre of 20 and is characterized by the adhesive of foaming structure, described long fibre is arranged in parallel in large quantities, and described adhesive has minute aperture foaming structure, and the hole of 90-95% has the aperture that size is 30-500 μm, the adhesive used is when free foaming, and formation density is 30-300kg/m
3foams.
2. composite wooden material according to claim 1, is characterized in that, polyurethane system is used as adhesive.
3. composite wooden material according to claim 2, also containing particle.
4. composite wooden material according to claim 3, is characterized in that, according to standard EN 317, thickness swelling is less than or equal to 5%.
5. composite wooden material according to claim 4, is characterized in that, described long fibre is modified.
6. the production method of the composite wooden material according to claim 1-5 any one, is characterized in that, comprises the following steps:
---long stapled production;
---long stapled arrangement;
---the application of binding agent;
---close stamping machine; And
---adhesive foams.
7. method according to claim 6, is characterized in that, adhesive composition is controlled, so foaming process only starts after stamping machine cuts out.
8. described method according to claim 7, is characterized in that, foaming and solidification process are initiated by field and/or accelerate.
9. method according to claim 8, is characterized in that, except adhesive, also comprising can by the particle of the field excitation be employed.
10. method according to claim 9, is characterized in that, described particle is included in described adhesive.
11. methods according to claim 7, is characterized in that, described foaming and solidification process are heated or steam is initiated and/or accelerates.
12. methods according to claim 11, is characterized in that: described foaming and solidification process are initiated by hot-air and/or accelerated.
13. methods according to claim 11, is characterized in that, the method is implemented as continuous process by coil press.
The composite wooden material that 14. methods according to Claim 8 according to any one of-13 obtain.
15. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product finger print panel products and part thereof.
16. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product refers to have coating or uncoated form surfacing and part thereof.
17. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to working face platform and protective scaffold.
18. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product refers to for building or the circle of 3D shape of template of load-bearing or pancake template product.
19. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product refer to loss template or its still retain parts in the structure.
20. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to timber structure beam and accessory thereof.
21. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to wood structure plate.
22. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to furnature construction plate.
23. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to top level structure plate, filled board.
24. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product dinger thickness plank.
25. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product finger-type material, flat board.
26. products comprising the composite wooden material any one of claim 1-5 or described in 14, is characterized in that, this product fingerboard.
27. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to the section bar for Rail car manufacture.
28. products comprising the composite wooden material any one of claim 1-5 or described in 14, it is characterized in that, this product refers to forming part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010047254.9A DE102010047254B4 (en) | 2010-10-01 | 2010-10-01 | Wood composite |
| DE102010047254.9 | 2010-10-01 | ||
| PCT/EP2011/067133 WO2012042027A1 (en) | 2010-10-01 | 2011-09-30 | Wood composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103153562A CN103153562A (en) | 2013-06-12 |
| CN103153562B true CN103153562B (en) | 2016-03-09 |
Family
ID=44906023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180047233.1A Active CN103153562B (en) | 2010-10-01 | 2011-09-30 | Composite wooden material |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP2621695B1 (en) |
| JP (1) | JP5997696B2 (en) |
| KR (1) | KR101500925B1 (en) |
| CN (1) | CN103153562B (en) |
| BR (1) | BR112013007793A2 (en) |
| DE (1) | DE102010047254B4 (en) |
| ES (1) | ES2663007T3 (en) |
| NO (1) | NO2621695T3 (en) |
| PL (1) | PL2621695T3 (en) |
| RU (1) | RU2541652C2 (en) |
| WO (1) | WO2012042027A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702845B (en) * | 2018-11-29 | 2022-03-29 | 南京林业大学 | Low-density glue-free straw board, preparation method and application thereof |
| EP4286123A1 (en) | 2022-05-30 | 2023-12-06 | ETH Zurich | Rod-based wood materials |
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-
2010
- 2010-10-01 DE DE102010047254.9A patent/DE102010047254B4/en active Active
-
2011
- 2011-09-30 PL PL11771058T patent/PL2621695T3/en unknown
- 2011-09-30 WO PCT/EP2011/067133 patent/WO2012042027A1/en active Application Filing
- 2011-09-30 ES ES11771058.2T patent/ES2663007T3/en active Active
- 2011-09-30 KR KR1020137009964A patent/KR101500925B1/en active IP Right Grant
- 2011-09-30 NO NO11771058A patent/NO2621695T3/no unknown
- 2011-09-30 EP EP11771058.2A patent/EP2621695B1/en active Active
- 2011-09-30 JP JP2013530755A patent/JP5997696B2/en active Active
- 2011-09-30 RU RU2013120352/13A patent/RU2541652C2/en active
- 2011-09-30 CN CN201180047233.1A patent/CN103153562B/en active Active
- 2011-09-30 BR BR112013007793A patent/BR112013007793A2/en not_active Application Discontinuation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548861A (en) * | 1983-09-29 | 1985-10-22 | The Boeing Company | Foam rigidizing process and products produced therewith |
| US5895611A (en) * | 1994-07-19 | 1999-04-20 | Eldra Kunststofftechnik Gmbh | Process for producing interior trims for transport means and interior trims produced in this process |
| CN2595565Y (en) * | 2002-10-28 | 2003-12-31 | 南京林业大学 | Poplar wood base composite plate |
| EP1588814A1 (en) * | 2004-04-22 | 2005-10-26 | Henkel Kommanditgesellschaft auf Aktien | Method of manufacturing objects from a polyurethan-binder and a cellulosic material |
| CN1861341A (en) * | 2006-06-12 | 2006-11-15 | 中林南星（湖州）合板有限公司 | Method for prodn. of high strength high elastic wood composite material by using wood from quick growing species trees as raw material |
| CN101116994A (en) * | 2006-07-31 | 2008-02-06 | 于传敏 | Method for preparing novel vegetation composite tube |
| CN101042018A (en) * | 2007-04-10 | 2007-09-26 | 南京工业大学 | Composite material formwork |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013541444A (en) | 2013-11-14 |
| RU2013120352A (en) | 2014-11-20 |
| CN103153562A (en) | 2013-06-12 |
| DE102010047254B4 (en) | 2017-02-02 |
| DE102010047254A1 (en) | 2012-04-05 |
| EP2621695B1 (en) | 2018-01-03 |
| ES2663007T3 (en) | 2018-04-10 |
| PL2621695T3 (en) | 2018-04-30 |
| KR20130088157A (en) | 2013-08-07 |
| EP2621695A1 (en) | 2013-08-07 |
| RU2541652C2 (en) | 2015-02-20 |
| BR112013007793A2 (en) | 2016-06-07 |
| WO2012042027A1 (en) | 2012-04-05 |
| JP5997696B2 (en) | 2016-09-28 |
| NO2621695T3 (en) | 2018-06-02 |
| KR101500925B1 (en) | 2015-03-10 |
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