WO2022148925A1 - Procédé d'amélioration de l'étanchéité à l'air de bâtiments utilisant une membrane à base de biopolymères - Google Patents
Procédé d'amélioration de l'étanchéité à l'air de bâtiments utilisant une membrane à base de biopolymères Download PDFInfo
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- WO2022148925A1 WO2022148925A1 PCT/FR2022/050009 FR2022050009W WO2022148925A1 WO 2022148925 A1 WO2022148925 A1 WO 2022148925A1 FR 2022050009 W FR2022050009 W FR 2022050009W WO 2022148925 A1 WO2022148925 A1 WO 2022148925A1
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Definitions
- the present invention relates to a method for improving the airtightness of buildings or parts of buildings using a vapor barrier membrane, comprising a hydrophilic middle layer based on biopolymer and two outer layers relatively more hydrophobic than the layer median.
- Hygroregulating vapor barrier membranes or hygroregulating membranes, whose permeability to water vapor varies according to the humidity of the air, have been known for many years. For the reasons explained, for example, in application W096/33321, it is sought to obtain membranes which allow water vapor to pass easily when the relative humidity (RH) is high (70% to 100% RH) and which block effectively at low relative humidity (50% RH and below).
- RH relative humidity
- Such membranes when laid on the internal face of a thermal insulation material (face facing the interior of a building or a room), prevent as much as possible during the cold and dry season the water vapor to penetrate from inside the building into the space between the membrane and the wall and to condense on the latter (cold wall).
- the high permeability of the membrane allows any moisture present in the structural elements of the building to evacuate towards the interior of the building. This property is particularly important in the case of new constructions where, during installation, certain elements may have a very high water content due to storage conditions, but also in the case of water infiltration in existing structures. . In both cases, it is important to be able to let the entire structure dry efficiently in the summer, both outside and inside the building. This need is crucial especially if the elements making up the system are conducive to the proliferation of microorganisms.
- Such vapor barrier membranes having a differentiated behavior as a function of the relative humidity conditions which surround it are frequently qualified as “intelligent” (in English Smart vapor retarder (SVR)).
- intelligent in English Smart vapor retarder (SVR)
- the adjectives “moisture regulator”, “moisture regulator” and “intelligent” are used as synonyms when they describe the variation of the water vapor permeability of vapor barrier membranes.
- a humidity-regulating vapor barrier membrane is generally considered to be all the more interesting and efficient when its equivalent air thickness is high at low relative humidity and low at high relative humidity.
- the moisture-regulating vapor barrier membranes available on the market and described in the state of the art are generally based on synthetic organic polymers made from petroleum-based monomers.
- the most frequently described and used polymers are polyamides, in particular polycaprolactam, poly(vinyl alcohol) (PVOH), copolymers of ethylene and vinyl acetate and/or vinyl alcohol (EVA and EVOH).
- the most hydrophilic polymers can be associated, in multi-layer structures, with thin more hydrophobic layers, in particular based on polyolefins, such as polyethylene, polypropylene and copolymers of ethylene and propylene .
- Examples of documents describing such “smart” vapor barrier membranes include documents W02007/010388, W02006/034381, W02005/110892, US7008890, US 6808772 and US 6878455.
- biopolymers are preferably biobased, that is to say based on materials of biological origin that are renewable in the short term.
- the biopolymers used in the membranes of the present application are both biobased and biodegradable.
- Bio-based biopolymers encompass both natural organic polymers, present as such in biomass, organic polymers obtained by physical and/or chemical modification of these natural polymers, and synthetic organic polymers obtained by polymerization of bio-based ingredients.
- Membranes based on such biopolymers for example based on cellulose, chitosan or even based on poly(3-hydroxybutyrate) (PHB) are known and have been used, replacing films based on petroleum-based synthetic polymers, in particular in the field of food packaging where membranes are generally required to have water vapor permeability that is relatively independent of humidity and temperature conditions.
- the lifespan of packaging films is quite limited and generally ranges from a few days to a few weeks, at most a few months.
- a long service life of at least several years, or even several decades, is sought.
- Membranes based on biopolymers are most often quite hydrophilic and their permeability to water vapor is high.
- the equivalent air thickness of these membranes is generally less than 1m and its absolute value varies only slightly with the relative humidity of the atmosphere surrounding them. These membranes therefore remain extremely permeable to water vapor whatever the surrounding conditions.
- hydrophilic membranes based on biopolymers used in the field of food packaging remain too permeable to water vapor under conditions of low relative humidity (cold season). They are therefore not “intelligent” enough to be able to function correctly as vapor barriers in the field of thermal insulation of buildings, in particular in improving airtightness and managing the flow of water vapor in buildings.
- the present invention is based on the surprising discovery that it is possible to very significantly increase the "intelligence" of membranes based on biopolymers and thus to make them compatible with use as a vapor barrier membrane in the field of building, by applying on each of their two faces a very thin layer of hydrophobic polymer, very little permeable to water vapour.
- the subject of the present application is thus a method for improving the airtightness of a building or of a room of a building comprising the application of a vapor barrier membrane on the internal face of the walls or walls of said building or of said room of a building, characterized in that the vapor barrier membrane is a moisture-regulating vapor barrier membrane comprising an active part comprising
- a middle layer with a thickness of between 2 prrn and 200 miti, preferably between 4 prrn and 100 miti, in particular between 5 and 50 miti, consisting of a biopolymer having a water vapor permeability coefficient Pi which increases with the average relative humidity and which, when determined at 23°C and an average relative humidity of 25.5%, is at least equal to 300 Barrers, and, on either side of the middle layer and preferably in contact with it,
- the active part of the membrane is preferably a three-layer structure consisting of a middle layer and two outer layers as defined above.
- the middle layer and the two outer layers are of course continuous, non-perforated layers. They are therefore impermeable to fluids, whether liquid or gaseous.
- the permeability coefficients Pi and P2 are those of the polymers respectively forming the middle layer and the outer layers. They correspond to the ratio of the mass flux of water vapor (Q) which crosses a zone (A) of a membrane of the polymer to be tested having a given thickness (E), under the effect of a difference in vapor pressure of water (dP) existing on either side of the membrane.
- the membrane of the present invention therefore comprises a relatively thick layer based on a hydrophilic biopolymer (middle layer), coated on both sides with a continuous layer of a hydrophobic polymer (outer layers).
- the two outer layers are generally less thick than the middle layer.
- the ratio of the thickness of the middle layer to the thickness of each of the outer layers is advantageously between 1.5/1 and 1000/1, preferably between 2/1 and 500/1, in particular between 3/1 and 200/1.
- the two outer layers are preferably directly in contact with the middle layer, i.e. the interface between the layers is preferably free of adhesive.
- the outer layers are fixed to the middle layer by means of an adhesive
- the latter would preferably have a permeability coefficient P3 greater than Pi and P2.
- the adhesive should not oppose to the diffusion of water vapor a resistance greater than that of each of the layers constituting the membrane.
- the layers defined above form the “active part” of the membranes of the present invention.
- This part is preferably a membrane obtained in known manner by co-extrusion of thermoplastic polymers forming the different layers, by thermal bonding of films (outer layers) on the middle layer, or by depositing a coating on both sides of the layer median.
- the active part has in principle a mechanical strength allowing it to be used alone, that is to say without a support layer, it can be interesting, in particular for thin active layers (less than 50 ⁇ m ), to reinforce it with a mechanical structure that is permeable to air and whose resistance to the diffusion of water vapor is therefore negligible compared to that of the active layer, which is impermeable to air.
- the vapor barrier membrane therefore also comprises an air-permeable reinforcement or protection layer, directly in contact with the active part, that is to say with one of the layers external.
- This support layer can be a grid, a perforated plate, an open-pored foam or a woven or non-woven fabric, permeable to air. It is preferably a breathable textile, preferably a nonwoven. Mention may be made, as examples of particularly preferred support layers, of nonwovens made of polypropylene or polyester fibers or of glass fibers.
- the support layer or layers are preferably fixed to the active membrane, or active layer, by bonding using a polyurethane glue.
- the present invention also encompasses membranes where a reinforcing structure, such as a grid or a nonwoven, is incorporated into the active part of the membrane and more particularly into the middle layer.
- the water vapor permeability coefficient P2 of the organic polymer constituting the outer layers does not vary significantly with the average relative humidity.
- the P2wet/P2dry ratio is generally between 1.0 and 1.10, preferably between 1.0 and 1.05.
- the biopolymers forming the middle layer are biosourced and/or biodegradable organic polymers. They are preferably biobased.
- biobased biopolymers are preferably chosen from the group consisting of
- the osides include the glycosides, the hydrolysis of which produces monosaccharides and non-carbohydrate compounds, and the holosides which are polymers exclusively of monosaccharides.
- osides which can be used to form the middle layer of the vapor barrier membrane of the present invention, those chosen from the group consisting of alginate, carrageenan, cellulose, in particular regenerated cellulose (cellulose hydrate) , chitin, chitosan, pectin, dextrin, starch, curdlan, FucoPol, gellan gum, pullulan and xanthan.
- the proteins are advantageously selected from the group consisting of gluten, soy protein isolate, zein, whey protein, casein, collagen and gelatin.
- bio-based polymers extracted from biomass, have a high affinity for water and dissolve or swell in water to form hydrogels. It may therefore be interesting, or even necessary, to modify them chemically in order to reduce their hydrophilic nature, in particular to crosslink them in order to make them insoluble in water.
- Examples of chemically modified biobased biopolymers include cellulose esters, in particular cellulose acetate, cellulose ethers (in particular ethylcellulose, hydroxyethylcellulose), nitrocellulose, starch esters and ethers .
- the third category of biobased biopolymers is formed by polymers synthesized from biobased monomers.
- These polymers can be linear or branched, and therefore thermoplastic, or thermoset.
- PHA polyhydroxyalkanoates
- PHB polyhydroxybutyrate
- PHBV poly(hydroxybutyrate-co-hydroxyvalerate)
- PLA poly(lactic acid)
- PGA poly(glycolic acid)
- PLGA poly(lactide-co-glycolide)
- thermoset polymers obtained by reaction monosaccharides, disaccharides, oligosaccharides and/or alditols with a polycarboxylic acid and/or a polyaldehyde.
- thermoset polymers obtained by reaction of monosaccharides, disaccharides, oligosaccharides and/or alditols with a polycarboxylic acid and/or a polyaldehyde are well known in the field of binders for mineral wools and are described in detail, for example, in international applications WO2009/080938 , WO2010/029266, WO2013/014399,
- the biodegradable biopolymers can advantageously be chosen from the group consisting of aliphatic polyester homopolymers such as poly(caprolactone) (PCL) and poly(butylene succinate) (PBS), aliphatic copolyesters such as and poly(butylene succinate-co- adipate), aromatic copolyesters such as poly(butylene adipate-co-terephthalate) (PBAT) and polyesteramides.
- PCL poly(caprolactone)
- PBS poly(butylene succinate)
- aliphatic copolyesters such as and poly(butylene succinate-co- adipate)
- aromatic copolyesters such as poly(butylene adipate-co-terephthalate) (PBAT) and polyesteramides.
- All the biopolymers constituting the middle layer have a permeability coefficient Pi, determined at 23°C under dry conditions (approximately 25% average relative humidity), greater than or equal to 300 Barrers, preferably between 300 and 50,000 Barrers, in particular between 400 and 30,000 Barrers, and ideally between 500 and 20,000 Barrers.
- This permeability coefficient is determined as follows:
- the hydrophilic middle layer of the vapor barrier membrane of the present invention is covered on both sides with a continuous layer of an organic polymer that is more hydrophobic and less permeable to water vapor than the middle layer.
- continuous here means that each of the outer layers totally covers one of the sides of the middle membrane so that the latter is not in contact with the atmosphere.
- the two continuous layers can be of the same chemical nature and of the same thickness, or else of chemical nature and/or of different thickness from one another. Each of them is directly in contact with the middle layer.
- the permeability coefficient P2 of each of the outer layers is at most equal to 250 Barrers, preferably between 0.05 and 100 Barrers, in particular between 1.0 and 20 Barrers.
- the permeability coefficient is determined in the same way as the Pi coefficient.
- the organic polymer constituting the outer layers is advantageously chosen from the group consisting of polypropylene, polyethylene, poly(ethylene-co-propylene), homopolymers and copolymers of vinyl monomers chosen from vinyl chloride, vinylidene chloride, vinyl fluoride, fluoride vinylidene, tetrafluoroethylene and acrylonitrile.
- a vapor barrier membrane with a middle layer consisting of cellulose, in particular regenerated cellulose, and two outer layers consisting of polyethylene, polypropylene, an ethylene-propylene copolymer or poly(vinylidene chloride), preferably poly (chloride of vinylidene), is a particularly preferred embodiment of the vapor barrier membrane used in the process of the present invention.
- the active part of the vapor barrier membrane used in the process of the present invention advantageously has a thickness comprised between 5.0 mm and 240 mm, preferably between 10 mm and 120 mm, in particular between 15 and 80 mm, these values corresponding to the active part (trilayer) of the membrane but do not include any reinforcement and/or protection structure.
- the wall or the wall of the room or the wall of the building whose airtightness is to be improved are insulated, that is to say covered, by a thermally insulating material and the vapor barrier membrane is attached to the thermal insulation material or incorporated into the thermal insulation material.
- the vapor barrier membrane of the present invention is therefore applied in an internal position by relative to the thermal insulation material, preferably in direct contact with it. Fixing can be done by any appropriate means that does not significantly affect the airtightness of the membrane. It can be done for example by gluing, stapling or by means of a mechanical fastening system using textile hooks and loops (in English hook and loop fastener) of the scratch/ Velcro® type.
- the vapor barrier membrane is integrated into the insulating material and attached to the wall of the room or building at the same time as the latter.
- the membrane is then oriented parallel to the two main surfaces of the insulation material and is preferably located closer to the main surface facing the interior of the room or building than to the main surface facing the wall.
- the thermal insulating material can be any insulating material that is permeable to water vapor and includes in particular foams and fiber-based materials. It is preferably made of mineral fibers (mineral wool) or natural organic fibers (lignocellulosic fibers, cellulose wadding, animal wool), synthetic (polyester fibers) or artificial. It is preferably made of mineral wool. Examples
- each membrane was positioned so as to close an aluminum cup using as a joint product melted paraffin wax (mixture of 60% microcrystalline wax and 40% refined crystalline paraffin) to ensure the tightness.
- melted paraffin wax mixture of 60% microcrystalline wax and 40% refined crystalline paraffin
- calcium chloride is introduced into the cup before sealing it with the membrane in order to impose a relative humidity of approximately 1% inside.
- the cup/membrane assembly is then introduced into a climatic chamber in which the relative humidity is set at 50% and the temperature at 23°C, so as to create a difference in water vapor pressure (dP) from and sides of the membrane.
- the permeability coefficient Pi thus calculated corresponds to an average relative humidity of 25.5% ((1%+50%)/2).
- the procedure is analogous, except that liquid water is introduced into the dish in order to fix the relative humidity. at 100%, and the relative humidity in the climate chamber is set at 80%.
- the equivalent air thickness (Sd) is also determined for each membrane in accordance with standard EN IS012572.
- the first membrane is a vapor barrier membrane according to the invention. It consists of a middle layer of cellulose with a thickness of 17.5 ⁇ m sandwiched between two layers of poly(vinylidene chloride) (PVDC) with a thickness of 750 nm each.
- the permeability coefficient Pi of the cellulose middle layer is 5600 Barrers at a relative humidity of 25.5% (23°C) and 34600 Barrers at a relative humidity of 90% (23°C); the P2 permeability coefficient of the PVDC layers is 5 Barrers (23°C). It does not vary with relative humidity.
- the second and third membranes consist solely of cellulose and have the same permeability coefficients Pi as the middle layer of the first membrane.
- the fourth membrane is a membrane consisting of a single active layer of polyamide 6 with a thickness of 40 ⁇ m attached to a polypropylene nonwoven. It is available on the market under the name Vario KM Duplex® (Saint-Gobain Isover)
- the fifth membrane is a three-layer membrane according to the state of the art, with an active part consisting of a middle layer of ethylene copolymer and of vinyl alcohol (EVOH) sandwiched between two layers of polyamide 6, attached to a non-woven polypropylene. This membrane is available on the market under the name Vario Xtra® (Saint-Gobain Isover).
- the difference between the equivalent air thickness in dry and wet conditions of the three-layer vapor barrier membrane according to the invention is significantly greater than that of all the comparative membranes (membranes 2 to 5).
- the two cellulose membranes (membranes 2 and 3) have an equivalent air thickness (Sd) of less than 1 m, whether under the conditions wet or dry. They are not suitable as vapor barrier membranes because their hygroregulating power is insufficient. During the dry and cold season these membranes would allow too much water to pass through the space between the membrane and the wall of the building. This insufficiently intelligent behavior is corrected in a spectacularly effective manner by the presence of the two thin layers of PVDC.
- the membrane according to the invention has a total thickness (19 ⁇ m) much lower than those of the active parts of the two membranes marketed by the Applicant which are respectively equal to 40 ⁇ m (Vario KM Duplex®) and 30 ⁇ m (Vario Xtra®).
- the excellent performance of the membrane according to the invention therefore allows a reduction in raw materials and consequently in costs.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/260,436 US20240058766A1 (en) | 2021-01-07 | 2022-01-04 | Method for improving the airtightness of buildings using a biopolymer-based membrane |
| EP22702749.7A EP4274736A1 (fr) | 2021-01-07 | 2022-01-04 | Procédé d'amélioration de l'étanchéité à l'air de bâtiments utilisant une membrane à base de biopolymères |
| JP2023541278A JP7766694B2 (ja) | 2021-01-07 | 2022-01-04 | バイオポリマーに基づくメンブレンを用いて建物の気密性を向上させる方法 |
| KR1020237022603A KR20230129990A (ko) | 2021-01-07 | 2022-01-04 | 생체중합체 기반 막을 사용하여 건물의 기밀성을 개선하는방법 |
| CA3202601A CA3202601A1 (fr) | 2021-01-07 | 2022-01-04 | Procede d'amelioration de l'etancheite a l'air de batiments utilisant une membrane a base de biopolymeres |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2100107 | 2021-01-07 | ||
| FR2100107A FR3118636A1 (fr) | 2021-01-07 | 2021-01-07 | Procédé d’amélioration de l’étanchéité à l’air de bâtiments utilisant une membrane à base de biopolymères |
| FR2100377 | 2021-01-15 | ||
| FR2100377A FR3118637B1 (fr) | 2021-01-07 | 2021-01-15 | Procédé d’amélioration de l’étanchéité à l’air de bâtiments utilisant une membrane à base de biopolymères |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022148925A1 true WO2022148925A1 (fr) | 2022-07-14 |
Family
ID=80218457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2022/050009 Ceased WO2022148925A1 (fr) | 2021-01-07 | 2022-01-04 | Procédé d'amélioration de l'étanchéité à l'air de bâtiments utilisant une membrane à base de biopolymères |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240058766A1 (fr) |
| EP (1) | EP4274736A1 (fr) |
| JP (1) | JP7766694B2 (fr) |
| KR (1) | KR20230129990A (fr) |
| CA (1) | CA3202601A1 (fr) |
| WO (1) | WO2022148925A1 (fr) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996033321A1 (fr) | 1995-04-19 | 1996-10-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Barriere de vapeur servant a isoler des batiments contre les effets de la chaleur |
| WO2000037751A1 (fr) * | 1998-12-21 | 2000-06-29 | Icopal A/S | Pare-vapeur d'eau et son procede de fabrication |
| US6808772B2 (en) | 1995-04-19 | 2004-10-26 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Vapor barrier for use in the heat insulation of buildings |
| WO2005110892A1 (fr) | 2004-05-18 | 2005-11-24 | Saint-Gobain Isover | Emballage destine a des produits isolants |
| WO2006034381A2 (fr) | 2004-09-23 | 2006-03-30 | Saint-Gobain Isover | Materiaux de construction lamines |
| WO2007010388A1 (fr) | 2005-07-15 | 2007-01-25 | Saint-Gobain Isover | Substrat a base de materiau de construction possedant un retardateur de vapeur |
| WO2009080938A2 (fr) | 2007-12-05 | 2009-07-02 | Saint-Gobain Isover | Composition d'encollage pour laine minerale comprenant un monosaccharide et/ou un polysaccharide et un acide organique polycarboxylique, et produits isolants obtenus |
| WO2010029266A1 (fr) | 2008-09-11 | 2010-03-18 | Saint-Gobain Isover | Composition d'encollage pour laine minerale a base de sucre hydrogene et produits isolants obtenus |
| WO2013014399A1 (fr) | 2011-07-27 | 2013-01-31 | Saint-Gobain Isover | Composition d'encollage pour laine minerale a base de maltitol et produits isolants obtenus |
| WO2013021112A1 (fr) | 2011-08-05 | 2013-02-14 | Saint-Gobain Isover | Composition d'encollage pour laine minerale a base de saccharide reducteur et de saccharide hydrogene, et produits isolants obtenus. |
| FR2997649A1 (fr) * | 2012-11-08 | 2014-05-09 | Saint Gobain Isover | Membrane pare-vapeur tricouche pa/evoh/pa |
| WO2015095786A1 (fr) * | 2013-12-19 | 2015-06-25 | Certainteed Corporation | Compositions de revêtement pour matériaux de construction et substrats de matériaux de construction revêtus |
| WO2015132518A1 (fr) | 2014-03-06 | 2015-09-11 | Saint-Gobain Isover | Composition de liant pour laine minerale |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2452059A (en) * | 2007-08-22 | 2009-02-25 | Hunt Tech Ltd | Breathable insulation with infrared reflective coating |
| DE102018008583A1 (de) * | 2018-10-31 | 2020-04-30 | Ewald Dörken Ag | Verbundfolie |
| TWI700418B (zh) * | 2019-04-03 | 2020-08-01 | 衛普實業股份有限公司 | 防刮透氣防水保護片 |
-
2022
- 2022-01-04 US US18/260,436 patent/US20240058766A1/en active Pending
- 2022-01-04 WO PCT/FR2022/050009 patent/WO2022148925A1/fr not_active Ceased
- 2022-01-04 JP JP2023541278A patent/JP7766694B2/ja active Active
- 2022-01-04 CA CA3202601A patent/CA3202601A1/fr active Pending
- 2022-01-04 KR KR1020237022603A patent/KR20230129990A/ko active Pending
- 2022-01-04 EP EP22702749.7A patent/EP4274736A1/fr active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996033321A1 (fr) | 1995-04-19 | 1996-10-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Barriere de vapeur servant a isoler des batiments contre les effets de la chaleur |
| US6808772B2 (en) | 1995-04-19 | 2004-10-26 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Vapor barrier for use in the heat insulation of buildings |
| US6878455B2 (en) | 1995-04-19 | 2005-04-12 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Vapor barrier for use in the heat insulation of buildings |
| US7008890B1 (en) | 1995-04-19 | 2006-03-07 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Vapor barrier for use in the thermal insulation of buildings |
| WO2000037751A1 (fr) * | 1998-12-21 | 2000-06-29 | Icopal A/S | Pare-vapeur d'eau et son procede de fabrication |
| WO2005110892A1 (fr) | 2004-05-18 | 2005-11-24 | Saint-Gobain Isover | Emballage destine a des produits isolants |
| WO2006034381A2 (fr) | 2004-09-23 | 2006-03-30 | Saint-Gobain Isover | Materiaux de construction lamines |
| WO2007010388A1 (fr) | 2005-07-15 | 2007-01-25 | Saint-Gobain Isover | Substrat a base de materiau de construction possedant un retardateur de vapeur |
| WO2009080938A2 (fr) | 2007-12-05 | 2009-07-02 | Saint-Gobain Isover | Composition d'encollage pour laine minerale comprenant un monosaccharide et/ou un polysaccharide et un acide organique polycarboxylique, et produits isolants obtenus |
| WO2010029266A1 (fr) | 2008-09-11 | 2010-03-18 | Saint-Gobain Isover | Composition d'encollage pour laine minerale a base de sucre hydrogene et produits isolants obtenus |
| WO2013014399A1 (fr) | 2011-07-27 | 2013-01-31 | Saint-Gobain Isover | Composition d'encollage pour laine minerale a base de maltitol et produits isolants obtenus |
| WO2013021112A1 (fr) | 2011-08-05 | 2013-02-14 | Saint-Gobain Isover | Composition d'encollage pour laine minerale a base de saccharide reducteur et de saccharide hydrogene, et produits isolants obtenus. |
| FR2997649A1 (fr) * | 2012-11-08 | 2014-05-09 | Saint Gobain Isover | Membrane pare-vapeur tricouche pa/evoh/pa |
| WO2015095786A1 (fr) * | 2013-12-19 | 2015-06-25 | Certainteed Corporation | Compositions de revêtement pour matériaux de construction et substrats de matériaux de construction revêtus |
| WO2015132518A1 (fr) | 2014-03-06 | 2015-09-11 | Saint-Gobain Isover | Composition de liant pour laine minerale |
Non-Patent Citations (1)
| Title |
|---|
| S.A. STERN, JOURNAL OF POLYMER SCIENCE : PART A-2, vol. 6, 1968, pages 1933 - 1934 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7766694B2 (ja) | 2025-11-10 |
| JP2024503640A (ja) | 2024-01-26 |
| US20240058766A1 (en) | 2024-02-22 |
| CA3202601A1 (fr) | 2022-07-14 |
| KR20230129990A (ko) | 2023-09-11 |
| EP4274736A1 (fr) | 2023-11-15 |
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