WO2005007984A1 - Isolation a base de fibres de cellulose et procede d'application de cette isolation - Google Patents

Isolation a base de fibres de cellulose et procede d'application de cette isolation Download PDF

Info

Publication number
WO2005007984A1
WO2005007984A1 PCT/CA2004/001068 CA2004001068W WO2005007984A1 WO 2005007984 A1 WO2005007984 A1 WO 2005007984A1 CA 2004001068 W CA2004001068 W CA 2004001068W WO 2005007984 A1 WO2005007984 A1 WO 2005007984A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulation
water
additive
fibrous cellulose
weight
Prior art date
Application number
PCT/CA2004/001068
Other languages
English (en)
Inventor
Alfred Otto Schmidt
David J. Krendl
Karl Molcar
Original Assignee
Alfred Otto Schmidt
Krendl David J
Karl Molcar
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Otto Schmidt, Krendl David J, Karl Molcar filed Critical Alfred Otto Schmidt
Publication of WO2005007984A1 publication Critical patent/WO2005007984A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7604—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only fillings for cavity walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/085—Mechanical implements for filling building cavity walls with insulating materials

Definitions

  • This invention relates to a cellulose fibre insulation having a low moisture content and a method of application of the insulation to sloped surfaces. More particularly, this invention relates to a cellulose fibre insulation containing one or more additives where the insulation can be sprayed onto sloped surfaces and will adhere thereto even though the insulation has a low moisture content. DESCRIPTION OF THE PRIOR ART It is known to combine cellulose fibre insulation with an aqueous solution of one or more adhesives and to spray the resulting mixture onto a wall. A major problem in the fibre insulation industry is that the resulting insulation has a moisture content of 25% or more.
  • the high moisture content can damage the wood framing members or other material within the wall cavity or it may result in conditions that are conducive to the formation of mold. If the support members are damaged, the structural integrity of the building in which the insulation is used can be damaged. Excess moisture can also cause the wood to warp and/or shrink or twist resulting in customer complaints.
  • government regulations prevent the use of fibre insulation where the sprayed on product has a moisture content exceeding a pre-determined level. For example, in Canada, building regulations require that sprayed on insulation must have a moisture content that does not exceed 20% based on the weight of the installed product. Some other jurisdictions do not have any moisture content restrictions but high moisture content spray on insulation creates problems.
  • Previous cellulose fibre insulation and methods of installing such insulation suffer from one or more disadvantages in that the moisture content of the installed product is equal to or greater than 25% of the cellulose fibre by weight, or, the additive required to be mixed with the cellulose fibre is made on a wet basis off site, or, the insulation product is in liquid form at the manufacturing plant and is expensive and difficult to transport to the appropriate installation site, or, components are mixed at the manufacturing plant but begin to separate during transit, or, the final product is expensive and difficult to spray onto a surface, or, the product damages the support structure where the product is installed, or, conditions conducive to mold creation develop on the product with time, or, a barrier such as drywall, plastic film or mesh or netting is required to retain the product in position on a sloped surface, or, the product falls away from the structure where it is installed before it dries, or settles without drying, or the over-sprayed portion of the product is difficult to collect and expensive to dispose of, or, the product produces gases that are harmful to occupants, or, the cellulose
  • a fibrous cellulose insulation comprising a mixture of cellulose and a first additive, said first additive comprising a plurality of adhesives and a surfactant.
  • the mixture contains a second additive containing borates.
  • the mixture is dry and is in the form of a powder or a bale.
  • the first additive is less than 5% of the cellulose fibres by weight and still more preferably is less than 2.5% of the cellulose fibres by weight.
  • the first additive is less than 2% of the cellulose fibres by weight.
  • moisture is added to the mixture during installation.
  • Maximum moisture content is 24% and preferably less than 22% and still more preferably does not exceed 20%.
  • a fibrous cellulose insulation comprises a mixture of cellulose fibres, fire retardant and a first additive.
  • the first additive enables the mixture to be applied to a sloped surface by spraying the mixture onto the surface with a water spray.
  • the additive makes the insulation sticky and viscous enough to stick to the surface and to itself to allow a thick layer of insulation to be formed, yet slippery enough to allow for even flow when sprayed onto the surface with a water spray.
  • a fibrous cellulose insulation comprises a mixture of cellulose fibres and a first additive, the first additive comprising: (a) substantially 50% by weight starch; (b) substantially 25% by weight methylcellulose; (c) substantially 20% by weight ethylene vinyl acetate; and (d) substantially 5% by weight surfactant; the first additive being less than 5% by weight of said cellulose fibre.
  • a fibrous cellulose insulation comprising a mixture of cellulose fibres, a plurality of adhesives, a surfactant and water, the insulation being sprayable and drying to a final solid product having a moisture content not exceeding 24% by weight of the final product.
  • a fibrous cellulose insulation comprising a mixture of cellulose fibre, a first additive and water, the first additive containing a plurality of adhesives, the water containing a surfactant, the insulation being sprayable and drying to a final product having a moisture content not exceeding 24%.
  • a fibrous cellulose insulation comprising a mixture of cellulose fibre, a plurality of adhesives and water, the water containing a surfactant and ethylene vinyl acetate, the insulation being sprayable and drying to a final product having a moisture content not exceeding 24%.
  • a fibrous cellulose insulation comprising a mixture of cellulose fibre and water, the water containing a first additive, the first additive being a plurality of adhesives and a surfactant, said insulation being sprayable and drying to final product having a moisture content not exceeding 24%.
  • a fibrous cellulose insulation comprising a mixture of cellulose fibre, a first additive and water, the first additive containing a plurality of adhesives and a surfactant, part of the first additive being contained in the water and part of the first additive being mixed with the cellulose fibre, the insulation being sprayable and drying to a final product having a moisture content not exceeding 24%.
  • the moisture content does not exceed 20% and still more preferably does not exceed 18%.
  • a method of applying a fibrous cellulose insulation to a sloped surface to be insulated comprising mixing cellulose fibres with a first additive containing a plurality of adhesives and a surfactant, adding water to said mixture by simultaneously blowing said insulation onto said surface with a water spray to produce a final solid product, after drawing, said product having a moisture content not exceeding 24% by weight of said final product.
  • a method of applying a fibrous cellulose insulation with a low moisture content to a surface to be insulated comprising mixing a first portion of a first additive with cellulose fibres and a remaining portion of a first additive with water, said first additive containing a plurality of adhesives and a surfactant, adding said water containing said remaining portion of said first additive to said cellulose fibres containing said first portion of said first additive by spraying said water and said mixture to apply a final product to said surface, said final product having a maximum moisture content not exceeding 24% by weight of said final product after drawing.
  • a method of applying a fibrous cellulose insulation with a low moisture content to a surface to be insulated comprising mixing cellulose fibres with a first additive, the first additive containing a plurality of adhesives and a surfactant, introducing the mixture into a fibre dispensing machine having a first hose and a control system to spray the mixture in dry form, simultaneously adding water through a second hose connected to a water supply, said second hose having a liquid spray nozzle, simultaneously activating the fibre dispensing machine to spray the dry fibre onto said surface while simultaneously adding a minimum amount of water through said liquid spray nozzle, the water representing a maximum of 24% by weight of the insulation in a finished product, the finished product being thick enough and sticky enough to stick to said surface in a sufficiently thick layer to insulate the surface.
  • a method of applying a fibrous cellulose insulation with a low moisture content to a surface to be insulated comprising mixing cellulose fibres with part of a first additive, the first additive containing a plurality of adhesives and a surfactant, introducing the mixture into a fibre dispensing machine having a first hose and a control system to spray the mixture in dryed form simultaneously adding water through a second hose connected to a water supply, the water containing part of the first additive, the second hose having a liquid spray nozzle simultaneously activating the fibre dispensing machine to spray the insulation onto the surface while simultaneously adding a minimum amount of water containing part of the first additive through the liquid spray nozzle, the water representing a maximum of 24% by weight of the insulation in a finished product, the finished product being thick enough and sticky enough to stick to the surface in a sufficiently thick layer to insulate the surface.
  • FIG 1 there is shown a perspective view of one embodiment of an installation system for an attic;
  • Figure 2 there is shown floor joists; and
  • Figure 3 there is shown a perspective view of an installation system for a cathedral ceiling and a vertical wall.
  • sloped surfaces and similar variations are defined to include “vertical” or “vertical surfaces” and a sloped surface is a non-horizontal surface.
  • Cellulose fibres are mixed with a first additive containing a plurality of adhesives and a surfactant.
  • the adhesives are starch, methylcellulose and ethylene vinyl acetate (“EVA").
  • EVA ethylene vinyl acetate
  • the ethylene vinyl acetate is in dry form.
  • the starch is substantially 50%
  • the methylcellulose is substantially 25%
  • the ethylene vinyl acetate is substantially 20%
  • the surfactant is substantially 5%.
  • the first additive represents less than 10% by weight of the cellulose fibres and preferably less than 5% by weight of the cellulose fibres. Still more preferably, the first additive represents from substantially 1.0% by weight to substantially 2.5% by weight of the cellulose fibres. Still more preferably, the first additive is substantially 2% by weight of the cellulose fibres.
  • a second additive is added to the cellulose fibres, the second additive containing borates.
  • the second additive typically represents approximately 14% by weight of the cellulose fibres.
  • 45% or more of the second additive is borates.
  • substantially all of the second additive is borates.
  • the borates include boric acid.
  • borates are conventional with cellulose insulation as the borates provide fire retardant and pesticide properties to the insulation.
  • the borates are also a mould inhibitor. While the borates are referred to as a second additive, they can be added prior to or simultaneously with the first additive.
  • Other fire retardants can be used along with or in place of the borates.
  • the starch is instant or cold water swellable cornstarch.
  • the starch is fast acting and of high quality.
  • Other forms of starch can be obtained from rye, potatoes, wheat, sorghum, rice or tapioca.
  • the starch acts as an adhesive and is a thickener.
  • the methylcellulose is preferably carboxymethylcellulose but hydrbxypropylcellulose and hydroxyethylcellulose are also suitable.
  • the methylcellulose reacts with the cellulose fibres only when wet and acts as an adhesive and as a thickener.
  • Methylcellulose is a cellulosic ether.
  • cellulosic ethers including cellulose lower alkyl ethers, cellulose lower hydroxy alkyl ethers, cellulose lower alkyl, lower hydroxy alkyl mixed ethers, combinations thereof, salts thereof and solution and reaction products of such combinations, solutions and salts can be used in place of all or some of the methylcellulose.
  • cellulosic ethers include, but are not limited to, methylhydroxyethylcellulose, hydroxymethylethylcellulose, carboxymethylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylpropylcellulose and hydroxypropylcellulose.
  • EVA ethylene vinyl acetate
  • Polyvinylacetate preferably in dry form would also work, but ethylene vinyl acetate is preferred.
  • Polyvinylalcohol (“PVOH”) if used in dry form, may work, but would not work as well as the EVA or the PVA.
  • the PVA, EVA and PVOH are adhesives.
  • the EVA is preferably ELOTEX FX2320 (a trademark) which is a redispersible binder based on a copolymer of vinyl acetate and ethylene.
  • the Elotex FX2320 is EVA with an alcohol colloid coating.
  • EVA is a water dispersible synthetic organic polymer and other such polymers are believed to work as well. EVA is insoluble in water.
  • the surfactant is a broad range of chemicals that is well known to those skilled in the art.
  • the surfactant defines how the liquid reacts under movement or static motion and reduces the surface tension of the water.
  • the surfactant ensures that when the water enters the fibres, it enters quickly to allow the chemicals in the first additive to be activated.
  • Surfactant can be added to the water spray rather than being added to the dry powder.
  • a preferred surfactant is DOWFAX DRY HYDROTROPE (a trade mark).
  • all or part of the first additive can be added to the water.
  • the portion of the first additive that is contained in the water will be mixed with the cellulose fibres. If part of the first additive ingredients are added to the water, the surfactant or the EVA or both can be added to the water.
  • the first additive or part of the first additive that is added to the water can be added in dry form or in the liquid state. While all or part of the first additive can be added to the water rather than added to the dry cellulose fibres, it is preferred to add the first additive to the dry cellulose fibres.
  • the borates will also activate the EVA or PVA or PVOH, as well as the methylcellulose, propylcellulose or ethylcellulose.
  • the second additive contain borates (borax and boric acid), it is preferably substantially 14% of the cellulose fibres but could range from 13 to 17%, more or less of the cellulose fibres.
  • borates borax and boric acid
  • it is preferably substantially 14% of the cellulose fibres but could range from 13 to 17%, more or less of the cellulose fibres.
  • 7% can be borax and 7% can be ammonium sulfate.
  • Aluminum sulfate can be used in place of ammonium sulfate.
  • the second additive is conventional.
  • a fibre dispensing machine 2 receives the fibre (not shown) in bale or powder form.
  • a fibre dispensing machine receives the fibre in bale or powder form.
  • a pump 5 is connected to blow air through a hose extending between the fibre dispensing machine and the location where the insulation is to be blown 4.
  • the air travelling through the hose carries the mixture of cellulose fibres and first additive (or first and second additive) through the hose to the attic.
  • the hose has a dry fibre spray nozzle 6 at a free end thereof.
  • the fibre dispensing machine is conventional and has a hopper, agitators and basic controls for air supply and fibre feed rate (not shown).
  • the fibre dispensing machine introduces fibrous cellulose insulation under pressure through the hose to the spray nozzle at a free end of the hose.
  • the apparatus shown in Figure 1 has optional internal nozzles connected to a water pump 5, but water need not be added when the insulation is blown into an attic.
  • Cellulose fibre insulation that is sprayed into an attic with water is often referred to as stabilized cellulose.
  • FIG 3 when the fibrous cellulose insulation (not shown) is desired to be sprayed onto the underside of a cathedral ceiling or sloped ceiling 12 or into a vertical or other sloped wall cavity 14, moisture must be added in order to make the fibrous cellulose insulation stick to the underside of the ceiling or to the wall cavity.
  • a wall jig or barrier film 15 such as plastic netting, plastic webbing or plastic sheeting (not shown) to assist in holding the insulation in place.
  • the barrier film preferably will have openings therein into which the spray nozzle can be introduced.
  • the fibrous cellulose insulation with moisture added will be sprayed directly into a vertical or sloped wall or ceiling cavity without the use of netting or other means to assist in holding the insulation in place.
  • the same reference numerals are used in Figure 3 to describe those components that are identical to the components shown in Figure 1.
  • the application system has, in addition, a liquid tank 18, which preferably contains water (not shown).
  • the pump 5 pumps liquid from the liquid tank to liquid spray nozzles 20 on either side of the dry fibre spray nozzle 6 on the hose 3 from the fibre dispensing machine 2 simultaneously with the dry insulation.
  • the liquid is preferably water.
  • a medium pressure water tap line (not shown) can be substituted for either the pump or liquid storage tank, providing a reservoir for the pump. The water line could feed the pump directly to step up the water pressure and eliminate the need for a storage tank.
  • the dry fibre spray nozzle consists of a larger input for the dry fibrous cellulose insulation from the fibre dispensing machine.
  • the moisture is added by the liquid spray nozzles mounted outside the dry fibre spray nozzle.
  • the liquid spray nozzles activate the chemicals in the first and second additives to make the fibrous cellulose insulation sticky and viscous enough to form a layer thick enough to comprise insulation.
  • the hose from the fibre dispensing machine can have an internal spray nozzle (see Figure 1) whereby an aqueous solution under pressure is applied into an interior of the mixing chamber.
  • the mixing chamber or tube is used to coat the fibres internally at multiple injection points along the nozzle.
  • This internal mixing/coating chamber can be inserted into any location along the hose length from the machine to the exit point of the hose.
  • the function of this nozzle is to pre-wet and activate the fibrous mixture applied in a closed cavity or attic, but also in a vertical wall or ceiling.
  • the dry fibre spray nozzle preferably has a diameter of 2 to 3 inches and the mixing chamber or tube for the internal spray nozzle preferably has a diameter of 2 to 4 inches.
  • the moisture added to the dry fibrous cellulose insulation containing cellulose fibre and a first additive will not exceed 20% by weight of the fibrous cellulose fibre insulation after installation.
  • the mixture is applied at less than 2 pounds per cubic foot density. There is preferably less than 5% settling after the installed insulation has dried.
  • fibrous cellulose insulation containing one or both additives is combined and packaged in a dry bale form. The material is activated by adding a minimal amount of water or other liquid to cause the material to adhere to many surfaces as well as to adhere to itself.
  • the sticky viscous material resulting from the addition of a minimal amount of moisture will stick to almost any surface.
  • the low density of the product increases the coverage while also improving the insulation characteristics (i.e. R- Value).
  • the material can be applied underneath horizontal surfaces as well.
  • the amount of the first additive preferably ranges from substantially 1.0% to substantially 10% by weight of the cellulose fibre and more preferably ranges from V_% to 5% still more preferably ranges from substantially 1.5% to substantially 2% by weight of the cellulose fibre. Still more preferably, the first additive is substantially 2% by weight of the cellulose fibre.
  • the borates in the second additive range from substantially 10% to substantially 14% of the cellulose fibre by weight.
  • the moisture content of the final product has been found to be 19% and even less than 18% by weight of the fibrous cellulose insulation. In other product tests, the moisture content of the final product has been found to be 15% (average) by weight of the fibre cellulose insulation or less. In other tests, the final product can be found to have a moisture content of 10% by weight.
  • Recycle is preferably less than substantially 30% by volume of total insulation.
  • the wall is preferably pre- wetted by spraying water onto the wall. Further, the density of the cellulose fibre insulation prepared in accordance with the present invention ranges from substantially 1.0 lbs/ft 3 to substantially 2.0 lbs/ft 3 .
  • the first additive had the following ingredients in the following ratios: starch, 20 pounds; methylcellulose, 10 pounds; EVA, 8 pounds; and surfactant, 2.77 pounds. In other tests of the first additive, the first additive had the following ingredients in the following ratios: starch, 16.0 pounds; methylcellulose 7.5 pounds; EVA, 5.0 pounds; and surfactant, 1.5 pounds. In still other tests that have been conducted, the first additive had the following ingredients and the following ratios: starch, 15 pounds; methylcellulose, 7.5 pounds; EVA, 6.0 pounds; and surfactant,
  • the insulation When the cellulose fibre insulation is sprayed onto a sloped surface such as a vertical wall or a cathedral ceiling, the insulation must be viscous enough and sticky enough to be applied in a thick layer that will adhere to the wall without excessive fall-off, and not fall away while it dries. The insulation must also be moist enough to stick together but free flowing enough to be sprayable onto the wall with a small amount of moisture. The insulation must also dry properly to a solid final product, preferably with a hard surface so that it will not be so easily damaged. The drying period, during which the moisture is allowed to evaporate, will vary with conditions but usually takes about one hour. Insulation of the present invention has an improved R- value over conventional cellulose fibre insulation.
  • air infiltration and sound- muffling qualities are improved because of the density of the final product which ranges from substantially 1.2 lbs/ft 3 to substantially 2.0 lbs/ft 3 .
  • a source of cellulose fibre is used or waste newsprint.
  • the final product preferably dries with a hard surface. While the invention has been described in some detail, the most important features of the invention are the low moisture content and the low density of the final product after the product is sprayed by adding water, into a sloped surface which can be a wall cavity or cathedral ceiling cavity. While part of the first additive can be added to the water before spraying and the remaining part of the first additive can be added to the dry mixture, it is preferred to add the entire first additive to the dry mixture so that only water is sprayed.
  • methylcellulose, starch and ethylene vinyl acetate are the preferred ingredients for the adhesives
  • other adhesives can be made to work along with or in substitution for the three preferred adhesives.
  • other adhesives such as various gums, dextrans and sodium silicates can be used as substitutes for some or all of the adhesives.
  • Gums are polysaccharide materials and include but are not limited to agar, ghar gum, acacia gum, carrageenan gum and gatti gum.
  • Cellulose-based polysaccharides include methylated hydroxyl celluloses and these may also work as may cellulosic esters.
  • the final product has a low density, relatively high R-factor compared to previous fibrous cellulose insulation and a low moisture content.
  • the preferred ingredients produce a final product that has these properties.
  • the preferred ingredients for the first additive are starch, methylcellulose, ethylene vinyl acetate and surfactant. The low density results in less insulation being required per cubic foot of finished product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne une isolation à base de fibres de cellulose constituée d'un mélange de fibres de cellulose, d'un agent retardateur de flamme et d'un premier additif. Ce premier additif contient une pluralité d'adhésifs et un tensioactif. Ledit mélange est pulvérisé simultanément avec un brouillard d'eau sur une surface à isoler de façon à produire une isolation à base de fibres de cellulose présentant une faible teneur en humidité et une faible densité. La pluralité d'adhésifs comprend de préférence de l'amidon, de la méthylcellulose et de l'éthylène - vinyle acétate.
PCT/CA2004/001068 2003-07-17 2004-07-19 Isolation a base de fibres de cellulose et procede d'application de cette isolation WO2005007984A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US48760203P 2003-07-17 2003-07-17
US60/487,602 2003-07-17
US55033604P 2004-03-08 2004-03-08
US60/550,336 2004-03-08

Publications (1)

Publication Number Publication Date
WO2005007984A1 true WO2005007984A1 (fr) 2005-01-27

Family

ID=34083416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2004/001068 WO2005007984A1 (fr) 2003-07-17 2004-07-19 Isolation a base de fibres de cellulose et procede d'application de cette isolation

Country Status (1)

Country Link
WO (1) WO2005007984A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130133279A1 (en) * 2010-08-13 2013-05-30 Knauf Insulation Gmbh Insulative sealing system and materials therefor
EP3246490A1 (fr) 2016-05-20 2017-11-22 isofloc AG Procédé et dispositif d'injection de matériau isolant d'injection dans des chambres de matériau isolant
WO2020207727A1 (fr) * 2019-04-09 2020-10-15 Kadant Lamort Procédé de dépôt d'une composition de fibres cellulosiques sur un substrat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187983A (en) 1977-10-17 1980-02-12 National Cellulose Corporation Plural component-multi state mixing and encapsulating nozzle
US4360440A (en) 1981-05-13 1982-11-23 Fulbright & Jaworski Insulating fiber mixture, adhesive, and process
US5684068A (en) 1995-07-31 1997-11-04 International Cellulose Corp. Spray-on insulation
US6251476B1 (en) 2000-03-27 2001-06-26 International Cellulose Corp. Methods for spray-on insulation for walls and floor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187983A (en) 1977-10-17 1980-02-12 National Cellulose Corporation Plural component-multi state mixing and encapsulating nozzle
US4360440A (en) 1981-05-13 1982-11-23 Fulbright & Jaworski Insulating fiber mixture, adhesive, and process
US5684068A (en) 1995-07-31 1997-11-04 International Cellulose Corp. Spray-on insulation
US6251476B1 (en) 2000-03-27 2001-06-26 International Cellulose Corp. Methods for spray-on insulation for walls and floor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130133279A1 (en) * 2010-08-13 2013-05-30 Knauf Insulation Gmbh Insulative sealing system and materials therefor
US8863458B2 (en) * 2010-08-13 2014-10-21 Knauf Insulation Gmbh Insulative sealing system and materials therefor
EP3246490A1 (fr) 2016-05-20 2017-11-22 isofloc AG Procédé et dispositif d'injection de matériau isolant d'injection dans des chambres de matériau isolant
WO2020207727A1 (fr) * 2019-04-09 2020-10-15 Kadant Lamort Procédé de dépôt d'une composition de fibres cellulosiques sur un substrat
FR3094992A1 (fr) * 2019-04-09 2020-10-16 Kadant Lamort Procede de depot d’une composition a base de fibres cellulosiques sur un support
US11795621B2 (en) 2019-04-09 2023-10-24 Kadant Lamort Method for depositing a cellulosic fiber composition on a substrate

Similar Documents

Publication Publication Date Title
US5921055A (en) Method of installing insulation
US5641368A (en) Fiberglass spray insulation system and method with reduced density
US6012263A (en) Method of installing insulation with dry adhesive and/ or cold dye, and reduced amount of anti-static material
US20080003431A1 (en) Coated fibrous nodules and insulation product
US5389167A (en) Method for insulating a cavity
CA2552129C (fr) Isolant constitue de matiere ameliorant l'isolation thermique, et methode de realisation
US11369980B2 (en) Water spray applied loose-fill insulation
CA2109848C (fr) Methode de mise en oeuvre d'un isolant en fibres mousse en place
US5952418A (en) Fiberglass/dry adhesive mixture and method of applying same in a uniform manner
US20050014896A1 (en) Cellulose fibre insulation and method of application
WO2006071519A2 (fr) Procede d'isolation de cavite dans une structure au moyen d'un procede de pulverisation et isolation obtenue
US20080020206A1 (en) Inorganic fiber insulation product
US7608159B2 (en) Method of making a nodular inorganic fibrous insulation
WO2005007984A1 (fr) Isolation a base de fibres de cellulose et procede d'application de cette isolation
US6251476B1 (en) Methods for spray-on insulation for walls and floor
US20060263586A1 (en) Spray-applied cellulose insulation and method
CA2551558C (fr) Procede de fabrication d'une isolation fibreuse inorganique nodulaire
CA2551003C (fr) Nodules fibreux revetus et produit d'isolation
IL108430A (en) Method and apparatus for insulating a cavity
CA2244031A1 (fr) Methode de pose d'isolant enrobe d'adhesif sec et/ou de colorant, et isolant a teneur reduite en agent antielectrostatique et/ou de substance colorante
CN1921909A (zh) 制造结节无机纤维绝缘材料的方法
JPS62148744A (ja) 断熱施工方法及び断熱施工装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase