MXPA97007722A - A method for making the material of alveolar soul of expanded paper resistant to moisture or water, and alveolar soul material asi obtain - Google Patents
A method for making the material of alveolar soul of expanded paper resistant to moisture or water, and alveolar soul material asi obtainInfo
- Publication number
- MXPA97007722A MXPA97007722A MXPA/A/1997/007722A MX9707722A MXPA97007722A MX PA97007722 A MXPA97007722 A MX PA97007722A MX 9707722 A MX9707722 A MX 9707722A MX PA97007722 A MXPA97007722 A MX PA97007722A
- Authority
- MX
- Mexico
- Prior art keywords
- core material
- alveolar
- powder
- water
- paper
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 title claims description 9
- 239000011162 core material Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 210000003660 Reticulum Anatomy 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 125000003700 epoxy group Chemical group 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 229920002456 HOTAIR Polymers 0.000 claims description 2
- 238000009998 heat setting Methods 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 7
- 235000019256 formaldehyde Nutrition 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 241001661194 Dives Species 0.000 description 1
- 231100000614 Poison Toxicity 0.000 description 1
- 210000004027 cells Anatomy 0.000 description 1
- 210000003850 cellular structures Anatomy 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The present invention relates to a method for making the alveolar core material of expended paper resistant to moisture or water, as well as the alveolar core material obtained by using this method. According to the invention, the honeycomb core material is provided with a coating after expansion, the coating preferably being applied as a polymer plastic powder.
Description
A METHOD FOR MAKING THE ALVEOLAR SOUL MATERIAL
EXPANDED PAPER RESISTANT TO MOISTURE OR WATER, AND THE
ALVEOLAR SOUL MATERIAL SO OBTAINED
The invention relates to a method for making the alveolar core material of expanded paper resistant to moisture or water, as well as the honeycomb core material obtained using this method. The alveolar paper core material is frequently used as a rigid and light construction material. In a number of applications it is necessary that the paper core material is resistant to moisture or water, as for example in building panels for external use, for use in transportation and for use in floors and the like. In such cases, the honeycomb core material is usually supplied in a moisture and water proof condition, after which the user provides the material on one or both sides with a plastic or metal coating layer, for example. The alveolar paper core material is obtained by glued together a number of paper strips on each other in certain places and, after the glue has dried, to expand this paper bundle by pulling the outer paper strips laterally, thereby obtaining the hexagonal cellular structure. After the expanded form has stabilized, the honeycomb core material is cut into slices of the desired thickness, which are used as a honeycomb core in honeycomb panels, for example. It is known how to make the alveolar core material of paper resistant to moisture and water after expansion by impregnating the paper. The impregnation is carried out by immersing the expanded core material in a solution of formaldehyde and water. In known processes the dipping is usually carried out a number of times to apply the desired amount of resin. After immersion, the impregnated core material should be dried with the aid of a drying facility in order to remove excess water from the core material. This way of making alveolar core material of paper resistant to moisture and water has a number of disadvantages. Formaldehyde is a poisonous substance that makes recycling or discharge difficult. Due to the fact that immersion has to be done a number of times, the treatment is time consuming and elaborate, resulting in high process costs. The drying, at the end of the process, is an extra stage in which the solvent with formaldehyde gases must be disposed of in a safe way. It is a purpose of the present invention to provide a method for making alveolar core material of expanded paper resistant to moisture or water that overcomes those disadvantages. In accordance with the invention, this purpose is achieved by providing the honeycomb core material with a coating after expansion.
This results in the alveolar paper core material being provided with a sealing layer that offers effective protection against moisture and water. The coating can be applied in one layer, so that repeated dives are not necessary. The formaldehydes do not have to be used anymore. Applying the coating results in a paper-coating-paper interleaving, which produces a lighter and stronger construction compared to the impregnated paper. This method is less expensive than one in which the paper strips are provided with a coating before they are glued together and expanded, since less coating material is needed, which is not over areas bonded with glue and can use the usual glues. In addition, costs are saved due to the fact that waste of the honeycomb material during production has not been provided with the coating that raises the cost price. The coating is preferably applied as a powder of a polymer material, since, in this way, it is possible to apply the coating of essentially equal thickness throughout the entire length of the honeycomb cells in a short time. In an advantageous embodiment of the method, the powder is applied provided the alveolar core material of paper and the powder with an opposite electrical charge, as a result of which, a predetermined quantity of powder can be applied to the core material in a simple and fast manner, allowing the Alveolar core material attracts dust electrically. In this case it is advantageous to moisten the paper core material with water before the powder is applied, since this makes it easier to give the paper core material a suitable electrical charge. The wetting is preferably carried out by spraying with water, preferably using a quantity of water such that a moisture level equal to 15-30 weight percent of the foamed paper is obtained. By spraying, the paper quickly and easily acquires a uniform and adequate degree of moisture. It has been established that the determined degree of humidity achieves good results in practice. For the polymer powder, a thermosetting polyester or epoxy is preferably used, since a strong moisture and water resistant coating can be made from a thermosetting polyester or epoxy or a mixture of the two. Advantageously, the honeycomb core material is heated after the heat setting powder has been applied, to convert the powder into a hard and thick coating and to stabilize the coated core material in the expanded state, wherein the Heating is preferably carried out by means of hot air or by infrared radiation to obtain the rapid and uniform heating.
The invention also relates to the alveolar paper core material obtained with the method described above.
Claims (10)
1. A method for making the alveolar core material of expanded paper resistant to moisture or water, characterized in that the honeycomb core material is provided with a coating after expansion.
2. A method according to claim 1, characterized in that the coating is applied as a powder of a polymeric material.
3. A method according to claim 2, characterized in that the powder is applied by providing the alveolar paper core material and the powder with an opposite electrical charge.
4. A method according to claim 3, characterized in that the paper core material is moistened with water before the powder is applied.
5. A method according to claim 4, characterized in that the wetting is carried out by spraying with water, preferably using an amount of water such that a moisture level equal to 15-30% by weight of the alveolar paper is obtained .
6. A method according to one of claims 2 to and including 5, characterized in that a thermosetting polyester or epoxy is used for the polymer powder. A method according to claim 6, characterized in that the honeycomb core material is heated after the heat-setting powder has been applied, to convert the powder flow into a hard and thick coating and to stabilize the material of the powder. alveolar soul coated in the expanded state. 8. A method according to claim 7, characterized in that the heating is carried out by means of hot air. 9. A method according to claim 7, characterized in that the heating is carried out by means of infrared radiation. 10. The alveolar paper core material provided with a coating that is obtained by a method described in one of the preceding claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1000088A NL1000088C2 (en) | 1995-04-07 | 1995-04-07 | Method for rendering expanded paper honeycomb core material, and honeycomb core material obtained therewith, moisture- or water-resistant. |
| NL1000088 | 1995-04-07 | ||
| PCT/NL1996/000150 WO1996031339A1 (en) | 1995-04-07 | 1996-04-09 | A method for making expanded paper honeycomb core material moisture- or waterproof, and the thus obtained honeycomb core material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MXPA97007722A true MXPA97007722A (en) | 1998-02-01 |
| MX9707722A MX9707722A (en) | 1998-02-28 |
Family
ID=19760850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9707722A MX9707722A (en) | 1995-04-07 | 1996-04-09 | A method for making expanded paper honeycomb core material moisture- or waterproof, and the thus obtained honeycomb core material. |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0819053B1 (en) |
| KR (1) | KR19980703682A (en) |
| CN (1) | CN1184448A (en) |
| AU (1) | AU5126696A (en) |
| BR (1) | BR9604834A (en) |
| CA (1) | CA2217658A1 (en) |
| DE (1) | DE69602737T2 (en) |
| ES (1) | ES2135220T3 (en) |
| HU (1) | HUP9802331A3 (en) |
| MX (1) | MX9707722A (en) |
| NL (1) | NL1000088C2 (en) |
| PL (1) | PL322718A1 (en) |
| WO (1) | WO1996031339A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0918625B1 (en) * | 1996-07-30 | 2000-11-02 | Swap Technology AG | Core of corrugated cardboard, method and apparatus for its manufacture |
| CN1070415C (en) * | 1996-12-20 | 2001-09-05 | 洪志修 | Method for producing honey-comb like pressure resistant body jointing top and bottom plate |
| CN100448658C (en) * | 2005-10-01 | 2009-01-07 | 陈明新 | Process of producing honeycomb card board with waste paper product |
| DE102007034543B4 (en) | 2007-07-20 | 2018-11-22 | Fritz Egger Gmbh & Co. Og | Method and device for producing a lightweight board and lightweight board |
| PL2186940T3 (en) | 2008-11-14 | 2013-05-31 | Ruehl Puromer Gmbh | Method for continuous production of impregnated paper honeycomb |
| CA2913967C (en) * | 2013-09-04 | 2017-05-30 | Halliburton Energy Services, Inc. | Nano-carbohydrate composites as lost circulation materials - lcm origami and other drilling fluid applications |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2731379A (en) * | 1953-04-21 | 1956-01-17 | Union Bag & Paper Corp | Method of making honeycomb material |
| US3519510A (en) * | 1967-05-26 | 1970-07-07 | Edward J Ardolino | Formation of structural honeycomb |
| FR2171949A1 (en) * | 1972-02-16 | 1973-09-28 | Interlocking Systems Int | Honeycomb core structure - with firm bond to end facing sheets |
| FR2568513B1 (en) * | 1984-07-31 | 1986-11-14 | Hexagone | DRAWING-CALIBRATION PROCESS OF PAPER BAND WITH ALVEOLAR NETWORK AND MACHINE FOR IMPLEMENTING SAME |
-
1995
- 1995-04-07 NL NL1000088A patent/NL1000088C2/en not_active IP Right Cessation
-
1996
- 1996-04-09 WO PCT/NL1996/000150 patent/WO1996031339A1/en not_active Application Discontinuation
- 1996-04-09 DE DE69602737T patent/DE69602737T2/en not_active Expired - Fee Related
- 1996-04-09 HU HU9802331A patent/HUP9802331A3/en unknown
- 1996-04-09 KR KR1019970707081A patent/KR19980703682A/en not_active Application Discontinuation
- 1996-04-09 ES ES96907796T patent/ES2135220T3/en not_active Expired - Lifetime
- 1996-04-09 MX MX9707722A patent/MX9707722A/en not_active Application Discontinuation
- 1996-04-09 PL PL96322718A patent/PL322718A1/en unknown
- 1996-04-09 EP EP96907796A patent/EP0819053B1/en not_active Expired - Lifetime
- 1996-04-09 CN CN96193924.9A patent/CN1184448A/en active Pending
- 1996-04-09 BR BR9604834A patent/BR9604834A/en not_active Application Discontinuation
- 1996-04-09 CA CA002217658A patent/CA2217658A1/en not_active Abandoned
- 1996-04-09 AU AU51266/96A patent/AU5126696A/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4874648A (en) | Method of making flame resistant polyimide foam insulation and the resulting insulation | |
| US4353947A (en) | Laminated composite structure and method of manufacture | |
| US3302362A (en) | Method for forming roof structure | |
| MX9706921A (en) | Polyisocyanurate boards with reduced moisture absorbency and lower air permeability and related methods. | |
| CA2216027A1 (en) | Composite roofing members having improved dimensional stability and related methods | |
| MXPA97007722A (en) | A method for making the material of alveolar soul of expanded paper resistant to moisture or water, and alveolar soul material asi obtain | |
| US4696710A (en) | Method of manufacturing a composite reinforced structure of ceramics material | |
| EP0819053B1 (en) | A method for making expanded paper honeycomb core material moisture- or waterproof, and the thus obtained honeycomb core material | |
| US5965207A (en) | Method of applying a polyurethane coating on engineered particleboards | |
| US2173622A (en) | Facing and method of securing the same to a support | |
| US4563321A (en) | Method of producing a plastic unitary curved structure with two surfaces and a honeycomb shaped core | |
| US2418233A (en) | Production of plywood products | |
| JPS56115216A (en) | Prepreg material and manufacture thereof | |
| RU2379188C2 (en) | Damp-proof covering material, sheet product covered with such material and methods of their manufacturing | |
| US4079170A (en) | Wax saturated expanded polystyrene and method of manufacture | |
| CH454440A (en) | Process for producing a lightweight construction material and lightweight construction material produced by the process | |
| GB2045684A (en) | Method of manufacturing boards of soft cellular plastics | |
| US2955642A (en) | Method for forming laminated objects | |
| JP2000167856A (en) | Heater for thermally press-bonding prepreg and method for reinforcing concrete structural material using this heater | |
| DK0763387T3 (en) | Process for producing a foil suitable as surface protection layer on a profile element | |
| KR950012786B1 (en) | Lpm panel and method of making same | |
| EP0422281A1 (en) | A method of making flame resistent polyimide foam insulation and the resulting insulation | |
| GB2029765A (en) | Method of Coating Surfaces of Buildings | |
| US2991190A (en) | Method of producing moisture resistant building units | |
| JPH0437214B2 (en) |