GB2145447A - A building board, or building component made therefrom provided with a vapour barrier - Google Patents
A building board, or building component made therefrom provided with a vapour barrier Download PDFInfo
- Publication number
- GB2145447A GB2145447A GB08420958A GB8420958A GB2145447A GB 2145447 A GB2145447 A GB 2145447A GB 08420958 A GB08420958 A GB 08420958A GB 8420958 A GB8420958 A GB 8420958A GB 2145447 A GB2145447 A GB 2145447A
- Authority
- GB
- United Kingdom
- Prior art keywords
- board
- building
- faces
- spread
- interior cladding
- 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.)
- Granted
Links
- 230000004888 barrier function Effects 0.000 title description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 9
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 9
- 229920006214 polyvinylidene halide Polymers 0.000 claims abstract description 8
- 238000005253 cladding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 5
- 239000011247 coating layer Substances 0.000 claims 1
- 230000035515 penetration Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 29
- 239000002966 varnish Substances 0.000 description 22
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- -1 polyethylene Polymers 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 230000035699 permeability Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 229940116368 1,2-benzisothiazoline-3-one Drugs 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- KWFCBHOZCRJMHG-UHFFFAOYSA-N 1,2-benzothiazol-3-one;2-[bis(2-hydroxyethyl)amino]ethanol;2-(2-hydroxyethylamino)ethanol;morpholine Chemical compound C1COCCN1.OCCNCCO.OCCN(CCO)CCO.C1=CC=C2C(=O)NSC2=C1 KWFCBHOZCRJMHG-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/04—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C09D127/08—Homopolymers or copolymers of vinylidene chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The penetration of water vapour into a wall structure comprising a building board, or building component made therefrom is reduced by coating the said board or component on the surface which faces the warm or humid space with a moisture-impermeable layer of a polyvinylidene halide, especially polyvinylidene chloride.
Description
SPECIFICATION
A building board, or building component made therefrom provided with a vapour barrier
The present invention relates to building boards, and building components made therefrom, having as a vapour barrier a film which is substantially impermeable to moisture, and to methods for preventing water vapour from penetrating into the wall structure, by fitting on one surface of the interior cladding board of the wall structure a film which is substantially impermeable to moisture.
It is known to provide an exterior wall with a polyethylene film which serves as a vapour barrier between the interior cladding board and the thermal insulation of the exterior wall. By using such films it is not, however, possible to prevent moisture from transferring from the warm and humid space into the interior cladding board itself. This problem could be eliminated by attaching a polyethylene film on that surface of the interior cladding board which face the warm space, but this solution would give rise to insurmountable problems in that paints and wallpaper paste do not adhere to a polyethylene surface.
In practice the taping of polyethylene films to each other is laborious and unreliable, since with present-day tapes the seams often detach, whereupon the vapour barrier is no longer impermeable. Furthermore, a polyethylene film cannot be attached tightly to different structures by current work methods. Also, a polyethylene film is broken at electricity inlets and when nails or fasteners are hammered into the wall. Polyethylene film also turns brittle when it ages, and tears are then easily produced on it. The repairing of such tears is often in practice impossible, since the polyethylene film is hidden behind the interior cladding board.
The present invention eliminates or at least reduces the disadvantages mentioned above and provides a building board or a building component made from building boards, having as a vapour barrier a continuous, seamless film which is substantially impermeable to moisture and which does not turn brittle when it ages but, on the contrary, becomes more impermeable than before. The building board of the present invention, and building components made therefrom has, on that surface of the board or building component which faces the warm or humid space, a substantially moisture-impermeable layer containing a polyvinylidene halide. The said layer is preferably a liquid coating varnish layer containing a polyvinylidene halide, especially polyvinylidene chloride.
The thickness of the coating varnish layer is preferably 30-300 zm, for example about 1 60 ym. The coating varnish can also be spread on the edges of the building component or board, especially of a particle board.
The polyvinylidene halide is preferably applied on a varnish dispersion, in particular an aqueous dispersion, which contains the polyvinylidene halide, and preferably 10-60% of polyvinylidene chloride, in addition to any auxiliary agents and/or pigments.
As auxiliary agents it is possible to use an auxiliary solvent such as a glycol ether, a thickener such as a polyurethane thickener, a wetting agent such as polyethylene oxide, an antifoam agent such as a silicone oil, a pH control agent such as ammonia, and/or a preservative such as 1 ,2-benzisothiazoline-3-one. The pigment used can be, for example, a talc. The binding agent used is preferably an aqueous dispersion of polyvinylidene chloride which contains approximately 60% by weight polyvinylidene chlorde.
The present invention also provides a method of preventing water vapour from penetrating into a wall structure, which comprises providing the interior cladding board of the wall structure with a substantially moisture-impermeable film by spreading a liquid surface coating containing polyvinylidene halide on the surface of the interior cladding board which faces the humid space.
The surface coating is preferably an aqueous dispersion which contains polyvinylidene chloride at 10-60% by weight in addition to any auxiliary agent and pigment. The varnish is preferably spread at 100-500 g of varnish per one m2 of the building component or board.
The varnish dispersion used in the present invention can be used for treating all kinds of surfaces, such as gypsum, stryrox, plastic, wood, and in particular building board surfaces. The coating varnish is especially advantageous for the treatment of particle board, since it not only prevents water vapour from penetrating from the warm space into the particle board so that deformations are not produced in the particle board caused by moisture, but also effectively prevents any emission of formaldehyde from the particle board into the interior space. The edges of particle boards can also be treated with the coating varnish dispersion, in which case no separate treatment of the edges of the particle boards is required.
The invention is described below in greater detail in the following Examples.
Example 1
The vapour permeability of coated and uncoated particle boards was measured in the following manner. Particle board specimens 1 2 mm thick were coated with the coating varnish dispersion specified below, by applying varnish to one side of the particle board specimens twice in such a way that the film thickness estimated on the basis of the amount spread was approximately 1 60 ym.
Substance Amount %
Haloflex 202 R.T.M (a mixed polymer containing polyvinylidene chloride, manufacturer ICI) 89.0
Butylethoxol (glycol ether, manufacturer
Shell) 2.0
Borchigel L75 (polyurethane, manufacturer
Borchers) 1.5
Synperonic PE 39/70 R.T.M (a copolymer of propylene oxide and ethylene oxide, containing 70% by weight ethylene oxide, manufacturer ICI) 1.0
Polymekon 1488 (silicone oil, manufacturer
Goldschmidt) 0.1
Proxel HL R.T.M (1 ,2-benzisothiazoline-3-one, manufacturer ICI) 0.1
Ammonia 0.3
Water 6.0
Total 100.0
The coated and the uncoated particle board specimens were attached, with the coated side upwards, as covers on containers in which dry calcium chloride was kept.The containers were stored at a temperature of 20"C and a relative humidity of 70%, and the passage of water vapour through the particle board specimens into the containers was observed by weighing the test containers at approximately one-week intervals.
The pressure difference of water vapour between the exterior and the interior surfaces of the test specimens was 1600 Pa. The surface area of the coated and the uncoated particle boards used as test specimens was 78.5 cm2 and the test period was 28 days.
When the particle boards treated with the coating varnish according to the invention and the uncoated particle boards were measured with respect to their permeability and resistance to water vapour, it was found that the mean water vapour permeability of the particel boards treated with the coating varnish according to the invention was 0.022 g/m2h (0.0037 X 10-9 kg/m2 s Pa) and their water vapour resistance was 270 x 10-9 m2 s Pa/kg, whereas the mean water vapour permeability of the uncoated particle boards was 3.35 g/m2 h (0.582 x 10-9 kg/m2 s Pa) and their water vapour resistance 1.7 X 10-9 m2 s Pa/kg. The water vapour permeability of the particle boards treated with the coatng varnish according to the invention was thus considerably decreased as compared with the uncoated particle boards, and their resistance to water vapour was respectively elevated.
Example 2
The emission of formaldehyde from particle boards treated with coating varnish in accordance with Example 1 was determined, and the results were compared with the formaldehyde emission obtained from uncoated particle boards. Eight specimens of 400 x 600 X 1 2 mm3 were sawn from particle board, and four of them were coated with the coating varnish according to the invention on both sides twice, the amount spread being in total 300 + 10g/m2. The boards were allowed to dry for a couple of weeks, and their edges were then protected with paraffin wax. The test boards were placed in metal boxes having a volume of 0.12 m3 and an air replacement coefficient of approximately 0.5 h-l. The air temperature was 20"C and the relative humidity was 85%.The concentration of formaldehyde in the air in the box was determined after 7 days; the load in the boxes was 1 6 m2/m3. The boards were stored in a storage room for 6 months, during which time the determination was repeated twice. The formaldehyde emission measured from test boards treated with the coating varnish according to the invention was 0.11 mg/m3, and the result obtained at a repeat determination after 3 months was 0.09 mg/m3, and 3 months after the previous repeat determination the result was 0.05 mg/m3. The result obtained from untreated boards was respectively 1.04 mg/m3, after repeat measurement 0.91 mg/m3, and after 3 months from the previous repeat measurement 1.11 mg/m3.
The above examples thus clearly show that the coating varnish according to the invention can be used as an interior diffusion barrier instead of the conventional polyethylene film used in wall structures.
Example 3
The relative humidity of room air varies from season to season, but in practice it normally remains between 30 and 70%. For this reason, deformations occur in conventional wood boards without surface treatment as the boards contract and expand.
By treating particle boards or other wooden building materials with the coating varnish of the invention described in Example 1, it is possible to slow down and reduce the deformation, caused by annual changes in the conditions, of a materal which is.subject to changes in relative humidity and temperature, and thereby to improve the usable properties of the material.
When the coating varnish according to the invention was applied twice to the surface of the particle boards, allowing the surface to dry between the applications, the deformation due to shrinkage in the direction of the plane of the board decreased to about 25% as compared with the deformation of untreated particle board at two months, the temperature being 20"C and the conditions varying from 95% and 70% to 45% relative humidity. These deformations can be decreased even more by treating the edges of the board with the coating varnish according to the invention. The results are presented graphically in the accompanying drawing, which depicts the deformation of the particle boards treated in the manner described above (swelling in per mill.) as a function of relative humidity (RH). It is seen that the deformation tendency of the particle board according to the invention decreases substantially in comparison with the uncoated particle board. In a building component made from particle boards thus coated the contracting and expanding of the seams is thereby prevented, and in consequence, the seams can be sealed by taping or by some other method in order to produce a continuous surface, for example on connection with the installation of the interior boards of the exterior wall.
The surface of a particle board treated with the coating varnish according to the invention is highly water-repellant, in which case the weight increase of the board in a water spray decreases, being only approximately 7-15% of the weight increase of the reference board.
Claims (11)
1. A building, or a building component made therefrom having on that surface of the board or building component which faces the warm space, a substantially moisture-impermeable layer containing a polyvinylidene halide.
2. A board or component according to Claim 1, in which the layer is spread also on the edges of the board or component.
3. A board or component according to Claim 1 or 2, in which the said layer contains polyvinylidene chloride.
4. A board or component according to any of the preceding claims, in which the thickness of the said layer is 50-300,um.
5. A board or component according to Claim 4 in which the thickness of the said layer is approximately 1 60 Jum
6. A board or component according to Claim 1, substantially as hereinbefore described.
7. A method of preventing water vapour from penetrating into a wall structure, which comprises providing the interior cladding board of the wall structure with a substantially moisture-impermeable film by spreading a liquid surface coating containing polyvinylidene halide on the surface of the interior cladding board which faces the humid space.
8. A method according to Claim 7, in which a coating layer containing polyvinylidene chloride is spread on the surface of the interior cladding board which faces the humid space.
9. A method of according to Claim 8, in which an aqueous dispersion which contains 10-60% by weight polyvinylidene chloride and optionally auxiliary agents and/or pigments is spread on the surface of the interior cladding board which faces the humid space.
10. A method according to Claim 7, 8 or 9, in which the coating is spread at 100-500 g/m2 on the surface of the interior cladding board which faces the humid space.
11. A method according to any one of Claims 7 to 10, in which the coating is spread also on the edges of the interior cladding board.
1 2. A method according to Claim 7 substantially as hereinbefore described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI833010A FI68696B (en) | 1983-08-23 | 1983-08-23 | BYGGSKIVA FOERSEDD MED AONGSPAERR ELLER AV BYGGSKIVOR TILLVERKAT BYGGELEMENT |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8420958D0 GB8420958D0 (en) | 1984-09-19 |
| GB2145447A true GB2145447A (en) | 1985-03-27 |
| GB2145447B GB2145447B (en) | 1986-11-19 |
Family
ID=8517638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08420958A Expired GB2145447B (en) | 1983-08-23 | 1984-08-17 | A building board, or building component made therefrom provided with a vapour barrier |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS6065848A (en) |
| CN (1) | CN85104029A (en) |
| DE (1) | DE3429975A1 (en) |
| DK (1) | DK163367C (en) |
| FI (1) | FI68696B (en) |
| FR (1) | FR2551114B1 (en) |
| GB (1) | GB2145447B (en) |
| NO (1) | NO163109C (en) |
| SE (1) | SE463909B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2175820A (en) * | 1985-12-20 | 1986-12-10 | Strand Furniture Limited | Plastics laminated worktop |
| US4686148A (en) * | 1985-07-15 | 1987-08-11 | W. R. Grace & Co., Cryovac Div. | Vinylidene chloride composition and film made therefrom |
| US4698111A (en) * | 1985-07-15 | 1987-10-06 | W. R. Grace & Co., Cryovac Div. | Vinylidene chloride composition and film made therefrom |
| GB2246376A (en) * | 1990-07-28 | 1992-01-29 | Dunbrik | Method of flue insulation |
| WO2015006704A1 (en) * | 2013-07-12 | 2015-01-15 | Valspar Sourcing, Inc. | Coatings for the backsides of wooden boards |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3444862A1 (en) * | 1984-12-08 | 1986-06-12 | Hammersteiner Kunststoffe GmbH, 5142 Hückelhoven | Coated flexible web |
| DK157144C (en) * | 1986-07-03 | 1990-04-16 | Rasmussen Kann Ind As | WINDOW ELEMENT |
| DE4413608A1 (en) * | 1994-04-19 | 1995-10-26 | Sturm Otto Dipl Ing Fh | Composite wooden wound and heat-insulating board |
| DE20301161U1 (en) * | 2003-01-22 | 2004-08-26 | Baenz, Rainer, Dipl.-Ing. | Sprayable mixture for production of pigmented concrete surface finish e.g. to restore required overall appearance, contains water, binder, concrete primer, cement, concrete retarder and black oxide pigment |
| NO325564B1 (en) * | 2006-06-22 | 2008-06-23 | Litex As | Vapor-proof building panels for wet rooms |
| FR3002943B1 (en) * | 2013-03-11 | 2015-03-27 | Arkema France | LIQUID (METH) ACRYLIC SYRUP FOR IMPREGNATING A FIBROUS SUBSTRATE, METHOD FOR IMPREGNATING A FIBROUS SUBSTRATE, COMPOSITE MATERIAL OBTAINED AFTER POLYMERIZATION OF SAID PRE-IMPREGNATED SUBSTRATE. |
| CN103510403A (en) * | 2013-09-30 | 2014-01-15 | 苏州潮盛印花制版实业有限公司 | Cotton cloth with good windproof effect |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB882296A (en) * | 1957-03-14 | 1961-11-15 | Owens Corning Fiberglass Corp | A composite foam and mineral product and methods for producing same |
| GB1407770A (en) * | 1973-01-08 | 1975-09-24 | Esb Inc | Building panel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1242307B (en) * | 1958-09-09 | 1967-06-15 | Hoechst Ag | Aqueous synthetic resin dispersions for the production of effect paints and coatings |
| FR1478218A (en) * | 1965-05-19 | 1967-04-21 | Solvay | aqueous emulsions based on vinylidene chloride copolymers for coating absorbent substrates |
| DE1771774B2 (en) * | 1968-07-06 | 1975-03-20 | Disbon-Gesellschaft Mbh, Chemische Erzeugnisse, 6105 Ober-Ramstadt | Process for impregnating concrete or absorbent mineral surfaces based on synthetic resin |
| JPS5343533B2 (en) * | 1970-06-23 | 1978-11-21 | ||
| US3914201A (en) * | 1974-02-01 | 1975-10-21 | Goodrich Co B F | Flame and smoke retardant vinyl chloride and vinylidene chloride polymer compositions |
| GB1553940A (en) * | 1976-07-05 | 1979-10-17 | Monier Concrete Ind | Method of making a concrete tile |
| GB1578736A (en) * | 1977-06-24 | 1980-11-05 | Livingstone C | Vinyl-idenechloride copolymer compositions and method of use |
-
1983
- 1983-08-23 FI FI833010A patent/FI68696B/en not_active Application Discontinuation
-
1984
- 1984-08-16 DE DE3429975A patent/DE3429975A1/en active Granted
- 1984-08-17 DK DK396784A patent/DK163367C/en not_active IP Right Cessation
- 1984-08-17 GB GB08420958A patent/GB2145447B/en not_active Expired
- 1984-08-20 SE SE8404144A patent/SE463909B/en not_active IP Right Cessation
- 1984-08-21 NO NO843338A patent/NO163109C/en unknown
- 1984-08-22 FR FR8413075A patent/FR2551114B1/en not_active Expired
- 1984-08-23 JP JP59174206A patent/JPS6065848A/en active Pending
-
1985
- 1985-05-23 CN CN198585104029A patent/CN85104029A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB882296A (en) * | 1957-03-14 | 1961-11-15 | Owens Corning Fiberglass Corp | A composite foam and mineral product and methods for producing same |
| GB1407770A (en) * | 1973-01-08 | 1975-09-24 | Esb Inc | Building panel |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686148A (en) * | 1985-07-15 | 1987-08-11 | W. R. Grace & Co., Cryovac Div. | Vinylidene chloride composition and film made therefrom |
| US4698111A (en) * | 1985-07-15 | 1987-10-06 | W. R. Grace & Co., Cryovac Div. | Vinylidene chloride composition and film made therefrom |
| GB2175820A (en) * | 1985-12-20 | 1986-12-10 | Strand Furniture Limited | Plastics laminated worktop |
| GB2175820B (en) * | 1985-12-20 | 1989-10-11 | Strand Furniture Limited | Plastics laminated worktop |
| GB2246376A (en) * | 1990-07-28 | 1992-01-29 | Dunbrik | Method of flue insulation |
| GB2246376B (en) * | 1990-07-28 | 1992-12-02 | Dunbrik | Method of flue insulation |
| WO2015006704A1 (en) * | 2013-07-12 | 2015-01-15 | Valspar Sourcing, Inc. | Coatings for the backsides of wooden boards |
| CN105378006A (en) * | 2013-07-12 | 2016-03-02 | 威士伯采购公司 | Coatings for the backsides of wooden boards |
| CN105378006B (en) * | 2013-07-12 | 2018-06-08 | 威士伯采购公司 | For the coating at the plank back side |
| CN108580230A (en) * | 2013-07-12 | 2018-09-28 | 威士伯采购公司 | Coating for the plank back side |
Also Published As
| Publication number | Publication date |
|---|---|
| NO843338L (en) | 1985-02-25 |
| SE8404144D0 (en) | 1984-08-20 |
| FR2551114B1 (en) | 1988-12-23 |
| SE463909B (en) | 1991-02-11 |
| DE3429975A1 (en) | 1985-03-07 |
| NO163109C (en) | 1990-04-04 |
| JPS6065848A (en) | 1985-04-15 |
| FR2551114A1 (en) | 1985-03-01 |
| DK396784A (en) | 1985-02-24 |
| GB8420958D0 (en) | 1984-09-19 |
| FI833010L (en) | 1985-02-24 |
| GB2145447B (en) | 1986-11-19 |
| FI833010A0 (en) | 1983-08-23 |
| NO163109B (en) | 1989-12-27 |
| DK163367B (en) | 1992-02-24 |
| DK396784D0 (en) | 1984-08-17 |
| FI68696B (en) | 1985-06-28 |
| DK163367C (en) | 1992-07-13 |
| CN85104029A (en) | 1986-11-19 |
| SE8404144L (en) | 1985-02-24 |
| DE3429975C2 (en) | 1989-05-18 |
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| Date | Code | Title | Description |
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| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930817 |