EP1937467A1 - Mousse impregnee - Google Patents

Mousse impregnee

Info

Publication number
EP1937467A1
EP1937467A1 EP05807528A EP05807528A EP1937467A1 EP 1937467 A1 EP1937467 A1 EP 1937467A1 EP 05807528 A EP05807528 A EP 05807528A EP 05807528 A EP05807528 A EP 05807528A EP 1937467 A1 EP1937467 A1 EP 1937467A1
Authority
EP
European Patent Office
Prior art keywords
foam
impregnated
chemical agent
particles
impregnated foam
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.)
Withdrawn
Application number
EP05807528A
Other languages
German (de)
English (en)
Other versions
EP1937467A4 (fr
Inventor
Lester Hensley
William Witherspoon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emseal Corp
Original Assignee
Emseal Corp
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 Emseal Corp filed Critical Emseal Corp
Publication of EP1937467A1 publication Critical patent/EP1937467A1/fr
Publication of EP1937467A4 publication Critical patent/EP1937467A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C08J9/42—Impregnation with macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5618—Impregnating foam articles
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/045—Condition, form or state of moulded material or of the material to be shaped cellular or porous with open cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2425/00—Characterised by the use of 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 an aromatic carbocyclic ring; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2495/00—Bituminous materials, e.g. asphalt, tar or pitch

Definitions

  • An impregnated foam can be used as a joint sealant, expansion joint, closure, gap filler, gasket, sheet, or blanket.
  • the impregnated foam sealant comprises a block, strip, sheet or extruded shape of flexible-cellular-foam material, into or onto which is applied a quantity of a chemical agent that is compatible with the cellular foam.
  • the chemical agents that have traditionally been impregnated into foam include asphalts, bitumens, natural and chlorinated paraffin waxes, acrylics, latexes, styrene, vinyls, and resins.
  • a sufficient quantity of chemical agent is forced into the flexible-cellular-foam material to render it water impermeable in a partially compressed state.
  • the flexible-cellular-foam material is not filled so full of chemical agent that it loses its ability to re-expand with enough outwardly directed force to hold itself firmly in a joint.
  • the greater cost is that of the chemical agent.
  • an impregnated foam comprising a flexible cellular foam.
  • This flexible cellular foam is fully or partially impregnated with a chemical agent (e.g., an asphalt, a bitumen, a paraffin wax, an acrylic, a latex, a styrene, a vinyl, and/or a resin).
  • a chemical agent e.g., an asphalt, a bitumen, a paraffin wax, an acrylic, a latex, a styrene, a vinyl, and/or a resin.
  • a plurality of microparticles or nanoparticles having dimensions (e.g., a diameter) of 100 micrometers or less are dispersed in this chemical agent.
  • the particles can be in the form, e.g., of hollow spheres.
  • the impregnated foam can be compressed between two structural elements to form a sealant, thereby serving, e.g., as a joint sealant; an expansion joint; a closure; a gap filler; a gasket; and a sheet or blanket used for sealing, insulating, or acoustical or vibrational absorption or damping.
  • a sealant e.g., as a joint sealant; an expansion joint; a closure; a gap filler; a gasket; and a sheet or blanket used for sealing, insulating, or acoustical or vibrational absorption or damping.
  • the ability of an impregnated foam sealant to be water impermeable is a product of the impregnating chemical agent and the ultimate density of the material produced by compressing a volume of impregnated cellular foam to traditionally one fifth of its pre- compressed volume.
  • the impregnated foam described herein because it includes micro- or nanoparticles dispersed in a chemical agent, can be more resistant to water or more hydrophobic than previously used chemical agents so as to be able to reduce the amount of compression needed to achieve a degree of sealing comparable to that obtained with traditional impregnated foam sealants.
  • the impregnated compressible foam product can achieve sealing performance equivalent to what has previously been possible while utilizing less chemical agent at the same traditional degrees of foam compression.
  • the impregnated compressible foam product can achieve sealing performance equivalent to what has previously been possible using similar amounts of chemical agent at lower degrees of foam compression.
  • foam can be used as joint sealant between building materials of all types, such as facade panels of concrete, stone, metal, glass, window systems; as an expansion joint in the vertical and horizontal planes between building materials of all types, such as concrete, steel, masonry, etc.; as an acoustical lining for engine compartments; as die-cut parts for gaskets in vehicles of all types; as log gaskets in the construction of log homes; as a gasket for sealing penetrations in recreational- vehicle (RV) windows; as seals between awnings and buildings; as gaskets within sun rooms, solariums, solar panels, as gaskets within or between civil engineering components, such as concrete pipes, curbing materials, roadway median barriers and bridge abutments; etc.
  • building materials of all types such as facade panels of concrete, stone, metal, glass, window systems
  • acoustical lining for engine compartments as die-cut parts for gaskets in
  • FIG. 1 is a magnified view (75 times) of the microstructure of foam impregnated with a chemical agent in which microparticles are dispersed.
  • FIG. 2 is a view at higher magnification (300 times) of the microstructure of foam impregnated with a chemical agent in which microparticles are dispersed.
  • the chemical agent 10 contains dispersed microparticles and coats the cell walls 12 of the cellular foam and/or partially or completely fills the foam cells throughout the foam matrix or at least in the region of the outer surface or surfaces of the flexible-cellular-foam material.
  • the coated or impregnated flexible-cellular foam is then alternatively compressed and packaged in a compressed state or packaged in an uncompressed state in the form of sheets, rolls, blocks, coils, spools or other cut shapes.
  • the impregnated foam can further have a pressure-sensitive mounting adhesive strip applied during manufacture to one or more of its surfaces.
  • the material can further have a coating of another compatible material such as silicone, polyurethane, acrylic, fire-retardant, fungicide, or other coating materials applied during manufacture to one or more of the surfaces of the impregnated foam, either as a planar skin or tooled or otherwise formed into a bellows or other shape.
  • the purpose of the coating can be to add additional features or characteristics, which may include but are not limited to color, enhanced ultra-violet light protection, an additional sealing element, a fire-retardant element, a component with a density different from that of the impregnated foam to broaden the spectrum of acoustic disruption, etc.
  • the material will begin to re-expand upon removal from the packaging towards its pre-compressed volume.
  • the foam is emplaned in a joint, void, or gap, such as in an expansion, contraction, settlement, isolation, panel, or other architectural or engineered joint in a building, for example between precast, stone, or metal panels or between other building materials of similar or dissimilar nature.
  • the foam sealant After insertion in the joint, the foam sealant continues to re-expand until it makes contact with both surfaces of the joint, where it will adhere to the joint surfaces by virtue of the pressure-sensitive mounting adhesive on one or more surfaces of the foam or by the combination of the stored-strain energy of pre- compression in the foam combined with the pressure-sensitive adhesive nature of the impregnating chemical agent. Once adhered to the joint surfaces and with normalization of the compression across the constrained foam section, the joint will be rendered water impermeable or near-impermeable.
  • uncompressed or fully re-expanded foam sealant can be positioned between two surfaces desired to be sealed and then compressed during the process of mechanically joining the surfaces by means of screws, fasteners or other constraints, to form a gasket between the surfaces to be sealed, such as between the log surfaces of a log-wall structure or between the metal to metal surfaces of a metal roof or building panel, or as a gasket between automotive or other components.
  • the extent of compression and the resulting level of sealing desired and achieved is determined by the specific use or application at hand.
  • the impregnated flexible- cellular foam material adhered to the walls of mechanical or electrical equipment enclosures acts as a dampener to noise and/or vibration, while additionally being flame retardant.
  • the cellular foam component in an impregnated foam sealant can be any suitable flexible-cellular-foam material that has a matrix of substantially open cells (pores) formed therein.
  • the foam can have 20 to 150 pores per inch and in particular embodiments has from 50 to 80 pores per inch.
  • Polyester or polyether polyurethane, polyvinyl copolymer, and viscose sponge-type foams are examples of foams that are suitable for use as the cellular- foam component.
  • the impregnated foam can be in the form of a block, strip, sheet or extruded shape of flexible-cellular-foam material, combined with a water-repelling chemical agent that coats the cellular foam cell walls and/or partially or completely fills the foam cells throughout the foam matrix or at least in the region of the outer surface or surfaces of the foam, wherein said chemical agent has a plurality of particles (e.g., in the form of nanospheres and/or microspheres) dispersed therein.
  • the particles are dispersed in a chemical agent that is used to impregnate or coat the cell walls of a flexible-cellular-foam material and/or partially or completely fills the cells of a cellular foam material throughout the foam matrix or at least in the region of the outer surfaces of the flexible-cellular-foam material to produce, e.g., a joint sealant, joint filler, gap filler, expansion joint, closure, gap filler; gasket; or sealing, insulating, acoustical, or anti- vibration sheet or blanket.
  • the particles can be small, spherical, plastic particles in the range of 10 ran to 100 ⁇ m.
  • the size of the particles is considered in relation to the cell size of the cellular foam material with larger particles being used with larger cellular-foam-cell sizes.
  • the ratio of particles to total dispersion i.e., particles and chemical agent
  • the ratio of particles to total dispersion is in the range of 15-40% by volume, determined in part by the permeability of the particular cellular foam material in which the dispersion will be impregnated. A higher percentage of particles will generally be used where the permeability of the foam is higher. Permeability may, but will not always, increase with increasing porosity and cell size. Accordingly, the ratio of particles to total dispersion will often increase with increasing porosity or cell size. Alternatively or additionally, larger particles can be employed where there is greater permeability, porosity and/or cell size.
  • the particles can include a polymer shell, such as polyester, polyethylene or polypropylene, or other rigid or non-rigid material encapsulating a gas or other element.
  • a polymer shell such as polyester, polyethylene or polypropylene, or other rigid or non-rigid material encapsulating a gas or other element.
  • the particles can be solid and essentially non-compressible and that these solid spheres may function effectively, as well.
  • other shapes e.g., ellipsoids
  • the particles act to decrease the porosity of the foam by filling voids, thereby limiting water penetration in the foam matrix.
  • the particles are inherently flexible; consequently, the particles take compression well, and they expand with the foam during cycling, which may occur in the joint or where the material is acting as a gasket in the joining of surfaces.
  • the particles are hydrophilic in nature and, as such, swell when in the presence of water; the particles, therefore, act to further fill voids, thereby further limiting water penetration into the flexible-cellular-foam material.
  • Use of hydrophilic material in a sealant is further discussed in US Patent No. 6,685,196, the teachings of which are incorporated by reference herein in their entirety.
  • the ratio, by weight, of foam to chemical agent can be in the range of 1 : 1 to 1 :5 by volume, said ratio being determined in part by the permeability of the foam, wherein the amount of chemical agent and particles relative to the foam will generally increase with increasing permeability.
  • more chemical agent and foam will, in many cases, be used where the porosity or cell size of the foam is greater.
  • larger particles may be used where the porosity or cell size of the foam is greater.
  • the process by which the chemical agent can be infused into the cellular foam involves suspending the chemical agent in solution (e.g., in water or in another solvent) and then passing sheets of the cellular foam material through an apparatus suspended in a bath of the solution, where the apparatus compresses and releases the foam, allowing it to draw the solution (and therefore the chemical agent) into the cells of the foam, resulting in the cellular foam structure being thoroughly coated.
  • the solvent is then driven off through a drying process, leaving the chemical agent dispersed throughout the cellular foam structure.
  • the chemical agent is formulated (e.g. , by introducing paraffin wax as a meltable medium) so as to be stable below a certain temperature and heated to make it flowable, at which point it is soaked or driven into the cellular foam material and then allowed to cool so as to be stable once again.
  • the manner in which the particle-modified-chemical agent is combined with the cellular foam can) be through full or partial impregnation or infusion of all or part of the flexible cellular foam, or through the coating of one or more faces of the flexible-cellular- foam material with the chemical or in any other manner that results in a product of the combined materials.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Sealing Material Composition (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

L’invention concerne une mousse imprégnée comprenant une mousse cellulaire souple imprégnée d’un agent chimique, une pluralité de particules ayant des dimensions de 100 micromètres ou moins étant dispersées dans ladite mousse. La mousse peut être comprimée entre deux éléments structurels pour former, par exemple, un scellant à joint ; un joint de dilatation ; une fermeture ; un agent de remplissage ; un joint statique ; ou une feuille ou couverture de scellement, isolante, acoustique ou anti-vibration. L’inclusion de fines particules permet d’utiliser moins de produit chimique ou un degré moindre de compression pour obtenir les mêmes performances de scellement que les mousses imprégnées connues. La figure 1 constitue une vue agrandie de la microstructure de la mousse imprégnée d’un produit chimique dans laquelle des microparticules sont dispersées.
EP05807528A 2005-08-23 2005-10-14 Mousse impregnee Withdrawn EP1937467A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71062505P 2005-08-23 2005-08-23
PCT/US2005/036849 WO2007024246A1 (fr) 2005-08-23 2005-10-14 Mousse impregnee

Publications (2)

Publication Number Publication Date
EP1937467A1 true EP1937467A1 (fr) 2008-07-02
EP1937467A4 EP1937467A4 (fr) 2011-06-01

Family

ID=37771898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05807528A Withdrawn EP1937467A4 (fr) 2005-08-23 2005-10-14 Mousse impregnee

Country Status (2)

Country Link
EP (1) EP1937467A4 (fr)
WO (1) WO2007024246A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316661B2 (en) 2008-11-20 2019-06-11 Emseal Joint Systems, Ltd. Water and/or fire resistant tunnel expansion joint systems
US9200437B1 (en) 2008-12-11 2015-12-01 Emseal Joint Systems Ltd. Precompressed foam expansion joint system transition
US10851542B2 (en) 2008-11-20 2020-12-01 Emseal Joint Systems Ltd. Fire and water resistant, integrated wall and roof expansion joint seal system
US11180995B2 (en) 2008-11-20 2021-11-23 Emseal Joint Systems, Ltd. Water and/or fire resistant tunnel expansion joint systems
US8365495B1 (en) 2008-11-20 2013-02-05 Emseal Joint Systems Ltd. Fire and water resistant expansion joint system
US9637915B1 (en) 2008-11-20 2017-05-02 Emseal Joint Systems Ltd. Factory fabricated precompressed water and/or fire resistant expansion joint system transition
US9631362B2 (en) 2008-11-20 2017-04-25 Emseal Joint Systems Ltd. Precompressed water and/or fire resistant tunnel expansion joint systems, and transitions
US9739050B1 (en) 2011-10-14 2017-08-22 Emseal Joint Systems Ltd. Flexible expansion joint seal system
US9670666B1 (en) 2008-11-20 2017-06-06 Emseal Joint Sytstems Ltd. Fire and water resistant expansion joint system
US10066387B2 (en) 2008-12-11 2018-09-04 Emseal Joint Systems, Ltd. Precompressed foam expansion joint system transition
US8341908B1 (en) 2009-03-24 2013-01-01 Emseal Joint Systems Ltd. Fire and water resistant expansion and seismic joint system
US8813450B1 (en) 2009-03-24 2014-08-26 Emseal Joint Systems Ltd. Fire and water resistant expansion and seismic joint system
DE202011107000U1 (de) 2011-10-21 2013-01-29 Tremco Illbruck Produktion Gmbh Dichtband
US9068297B2 (en) 2012-11-16 2015-06-30 Emseal Joint Systems Ltd. Expansion joint system
CN115397901A (zh) * 2020-04-08 2022-11-25 雷克萨有限责任公司 材料成型方法和成型产品
DE102020129429A1 (de) 2020-11-09 2022-05-12 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Dichtungsanordnung zur Abdichtung von Teilen sowie Gehäuseanordnung
US11352526B2 (en) 2020-11-10 2022-06-07 Schul International Co., Llc Laterally-coiled adhesively-retained low-force backer for sealant application

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703034A (en) * 1970-09-14 1972-11-21 Kabel Metallwerke Ghh Method of making waterproof electrical cable
DE4020230A1 (de) * 1989-06-30 1991-01-03 Heribert Hiendl Fugendichtungsband
EP0980904A1 (fr) * 1997-12-09 2000-02-23 Nippon Kayaku Kabushiki Kaisha Agent impermeabilisant osmotique, matiere impermeabilisante, composition de ciment ou de mortier et procede de prevention de suintement
US20030083423A1 (en) * 2001-09-04 2003-05-01 W.R. Grace & Co.-Conn Novel two-phase compositions
US20040066006A1 (en) * 2000-01-18 2004-04-08 Konrad Baerveldt Hydrophilic joint seal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276334A (en) * 1961-04-05 1966-10-04 Cecil E Rhodes Joint filler strip and method of making sealed joint
US4485192A (en) * 1982-10-12 1984-11-27 W. R. Grace & Co. Plastisol sealing gaskets puffed with hollow discrete spheres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703034A (en) * 1970-09-14 1972-11-21 Kabel Metallwerke Ghh Method of making waterproof electrical cable
DE4020230A1 (de) * 1989-06-30 1991-01-03 Heribert Hiendl Fugendichtungsband
EP0980904A1 (fr) * 1997-12-09 2000-02-23 Nippon Kayaku Kabushiki Kaisha Agent impermeabilisant osmotique, matiere impermeabilisante, composition de ciment ou de mortier et procede de prevention de suintement
US20040066006A1 (en) * 2000-01-18 2004-04-08 Konrad Baerveldt Hydrophilic joint seal
US20030083423A1 (en) * 2001-09-04 2003-05-01 W.R. Grace & Co.-Conn Novel two-phase compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007024246A1 *

Also Published As

Publication number Publication date
WO2007024246A1 (fr) 2007-03-01
EP1937467A4 (fr) 2011-06-01

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