WO2004070108A2 - Moisture barrier membrane with tearable release liner composite - Google Patents
Moisture barrier membrane with tearable release liner composite Download PDFInfo
- Publication number
- WO2004070108A2 WO2004070108A2 PCT/US2004/001181 US2004001181W WO2004070108A2 WO 2004070108 A2 WO2004070108 A2 WO 2004070108A2 US 2004001181 W US2004001181 W US 2004001181W WO 2004070108 A2 WO2004070108 A2 WO 2004070108A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membrane
- wateφroofing
- release
- release liner
- coating
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B11/046—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
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- 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
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
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- B32B2250/05—5 or more layers
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- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J2423/00—Presence of polyolefin
- C09J2423/005—Presence of polyolefin in the release coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
Definitions
- the present invention relates to a moisture barrier membrane comprising a wate ⁇ roof adhesive, carrier support, and a release liner composite having a paper sheet and paper cutting strings separated from the wate ⁇ roof adhesive by a polyolefin coating or film bonded to the paper sheet.
- a polyolefin coating or film bonded to the paper sheet.
- Membranes having a wate ⁇ roofing adhesive and carrier support sheet are known. Such laminates typically have a release sheet for protecting the adhesive.
- the release sheet is often made of waxed or sihconized paper that is removed from the wate ⁇ roofing adhesive before the membrane is attached to a building or other construction surface.
- a wate ⁇ roofing membrane having a preformed wate ⁇ roofmg adhesive layer, releasable sheet liner, and a string or plurality of strings operative to cut the release sheet liner into smaller portions for selective removal of the liner, such that portions of the adhesive layer could be exposed for installation onto a building surface or civil engineering surface.
- strings provided convenience and flexibility in applying wate ⁇ roofing membranes to detail areas (e.g., non-flat surfaces) and also to areas around doors, windows, and other discontinuities in the building surface or other civil engineering surface (col. 2, lines 13-18).
- suitable strings include fishing line (e.g., 10-25 pound line) and dental floss string, and examples of string material include nylon, metal, cotton, hemp, glass, or other material, depending on the nature of release sheet liner used.
- the string could optionally be coated with wax, silicone, or other friction-reducing material to facilitate removal or peeling from the wate ⁇ roofing adhesive (col. 3, 11. 40-51).
- the string or strings are positioned within the membrane between the carrier support layer and the release sheet liner, either entirely or partially embedded within the wate ⁇ roofing adhesive layer (col. 2, 11. 28-32).
- strings initially placed "between" the adhesive layer and release liner could become partially or totally embedded in the wate ⁇ roofing adhesive, due to the tendency of the adhesive to flow around the string, leading to difficulty in locating the cutting strings at the job site.
- the present inventors believe that the use of tape to secure the string against the release sheet liner presents difficulties and problems. Because the release sheet is discarded after it is removed from the membrane adhesive, the tape is undesirable because it contributes to the amount of trash accumulating at the installation site. Furthermore, it is believed that the wate ⁇ roofing adhesive, which contains oil, could delaminate the tape adhesive and potentially cause the tape and string to remain stuck to the wate ⁇ roofing adhesive rather than become removed with the release sheet liner.
- the present invention provides a moisture barrier comprising a wate ⁇ roofing adhesive layer having a first major side contiguous with a carrier support sheet and a second major side releasably attached to a release liner composite that is generally coextensive with the wate ⁇ roofing adhesive layer.
- coextensive is used to refer to a situation in which the release liner composite is at least equal in width to the adhesive layer, does not extend beyond the adhesive layer width, and thus is not folded over in portions extending beyond the adhesive layer.
- An exemplary release liner composite of the present invention comprises: a paper sheet; a plurality of paper cutting strings arranged in spaced apart relation and operative to cut the paper sheet when one of the strings is pulled through the paper; and a continuous polyolefin coating or film positioned between the wate ⁇ roofing adhesive layer and plurality of strings.
- the continuous polyolefin coating or film is bonded to the paper sheet (such as by curtain coating the polyolefin onto the paper substrate), and is operative to maintain the strings in spaced apart relation adjacent the paper sheet.
- a release coating e.g., silicone or wax
- the wate ⁇ roof adhesive flows beyond or otherwise extends beyond the width of the carrier support, such that the wate ⁇ roofing membrane has at least one exposed adhesive "edge-bead" when installed on a building surface.
- the side of the paper sheet that is remote from the wate ⁇ roofing adhesive can be coated with a release material (e.g., silicone and/or wax) along the longitudinal margin edges of the paper to protect the exposed edge-bead adhesive when the membrane is formed into a roll.
- the paper sheet may further have a polyolefin (e.g., high density polyethylene) coating or film between the paper sheet and margin release coating.
- a polyolefin coating or film can cover both major faces of the paper sheet; or the paper sheet may be coated fully on only one major face (facing towards the wate ⁇ roofing adhesive) and, on the opposite major face, on only the margin edges corresponding with the wate ⁇ roofing adhesive edge-beads as described above.
- notch-failure refers to the phenomenon whereby stress at the paper edge of the paper sheet can propagate tearing at the edge of the sheet.
- another exemplary release liner composite 16 can have one or more longitudinally-extending strips of polyolefin coating or film running in parallel on the same side as the margin- release-coated edges are located (see 18/18 A of Fig. 1).
- Such polyolefin coating or film strips may correspond in location with cutting strings 22 (Fig. 1A) located on the other side of the paper sheet 20, and serve the pu ⁇ ose to facilitate finding and locating individual cutting strings 22 during installation as well as to minimize notch- failure in the paper sheet edges that are cut by one of the strings 22.
- an exemplary method for installing a moisture barrier comprises: positioning in unrolled form, onto a building or civil engineering surface, the afore-mentioned moisture barrier; and removing the release liner composite, or a portion thereof, at an angle with respect to the longitudinal direction of the positioned moisture barrier, thereby to attach the moisture barrier to the building or civil engineering surface.
- Fig. 1 is a diagram of an exemplary moisture barrier membrane of the present invention having a wate ⁇ roofing adhesive layer, carrier support, and an exemplary release liner composite;
- Fig. 1 A is an exploded diagram of a portion of the exemplary release liner composite shown in Fig. 1;
- Fig. 2 is a plan diagram of an exemplary method of the invention for attaching a moisture barrier membrane.
- moisture barrier includes sheet materials, such as felts, spunbonded materials (e.g., polypropylene), plastic and/or metal films, and the like which are customarily used in the building trade for house wrap or wate ⁇ roofing. Also included are wate ⁇ roofing membranes having a continuous "pre-formed" pressure-sensitive wate ⁇ roof (or “wate ⁇ roofing") adhesive layer that, in contrast to hot-applied mastic compositions, retains its layer shape in ambient temperatures and is operative to adhere to building surfaces (e.g., foundations, decks) and civil engineering structures (e.g., pipes, bridges, tunnels, etc.).
- Fig. 1 is a partially exploded cross-sectional view of an exemplary moisture barrier membrane laminate 10 of the present invention comprising a carrier support 12, a wate ⁇ roof and wate ⁇ roofing adhesive 14, and a release liner composite 16.
- the wate ⁇ roofing adhesive 14 may directly contact or be contiguous with the carrier support 12, but is preferably such that the adhesive 14 cold-flows or otherwise extends beyond the width edges of the carrier sheet 12 to provide one or more adhesive edge-beads 15 that become outwardly exposed when the membrane 10 is installed on a building surface.
- the pu ⁇ ose of the outwardly exposed adhesive surfaces 15 is to permit another wate ⁇ roofing membrane adhesive to be placed onto the exposed adhesive edge-beads 15, in adhesive-to-adhesive contact.
- the exemplary release liner composite 16 has a first major face 17 coated with wax or silicon to provide releasable-adhesion when contacting the wate ⁇ roofing adhesive layer 14 and a second major face 18 with margin edge release-coating portions (designated by the brackets at 18A) having width sufficient to correspond with the wate ⁇ roofing adhesive edge-beads 15 and being coated with wax or silicon to permit releasable-adhesion relative to the exposed adhesive edge-beads 15 when the membrane laminate 10 is rolled up on itself.
- the backside of the carrier support sheet 12 may optionally comprise an elastomeric coating or film (not shown) to improve skid-resistance when the carrier support sheet 12 is exposed to human foot traffic.
- exemplary moisture barrier membranes 10 of the invention optionally comprise a skid-resistant coating.
- Such skid-resistant coatings are employed, for example, on Ice & Water Shield® brand roofing membranes by Grace Construction Products, Cambridge, Massachusetts.
- Other skid resistant coatings, such as granular (sand) may also be employed as known in the industry.
- Fig. 1A is an enlarged cross-sectional view from Fig. 1 of the exemplary release liner composite 16 comprising: a paper sheet substrate 20; a plurality of strings 22 positioned against or adjacent to a first major face of the paper sheet; at least one polyolefin coating 24 or film which is bonded against said paper 20 and thus operative to secure said strings 22 against portions of the paper sheet 20 which (by virtue of the bonding with said paper) are removed from the wate ⁇ roofing adhesive layer 14; and a coating of silicon 26, wax, or other material operative to permit release of the liner 16 from the wate ⁇ roofing adhesive 14.
- the margin edge release coating portions 18 A previously mentioned above, which would comprise a coating of wax or silicon at the edge of the release liner 16, either directly on the paper 20 or the optional polyolefin coating or film designated at 28.
- Exemplary carrier supports 12, wate ⁇ roofing adhesives 14, and strings 22 contemplated for use in the present invention may follow those disclosed in US 6,235,365 of Schaughency et al., which is inco ⁇ orated as if set forth fully herein.
- the carrier 12 may be a continuous film made of paper, polymer, metal, glass, fabric (e.g., non-woven), felt, or mixture thereof, attached to the adhesive layer 12 and or embedded therein.
- the carrier support 12 comprises a polyolefin polymer (e.g., cross-laminated or oriented polyethylene or polypropylene).
- Exemplary wate ⁇ roofing adhesive layers 12 may comprise bituminous materials (e.g., rubber- modified bitumen) or non-bituminous synthetic adhesive materials (e.g., SIS, SEBS, butyl rubber, etc.) as known in the art.
- Pre-formed, sheet-like wate ⁇ roofing membranes having carrier support films and bituminous wate ⁇ roofing adhesives are commercially available from Grace Construction Products, Cambridge, Mass., under the trade name BITUTHENE® and ICE & WATER SHIELD®.
- the strings 22 are relatively thinner in width than the thickness of the waterproofing adhesive layer 14.
- the strings should have individual strength to withstand being pulled through and tear the release liner composite 16 without breaking.
- suitable string are fishing line, such as 2-20 pound line, or dental floss string, which may optionally be coated with wax, silicone, or othe rfriction-reducing material, to facilitate removal or peeling from the adhesive 14.
- the string could comprise nylon, metal, hemp, glass, or other material, depending on the nature of the release sheet liner material used.
- the strings 22 are preferably arranged in a parallel fashion with respect to each other, along the longitudinal or machine- direction of the release liner composite 16.
- a preferred method for making moisture barrier membranes 10 of the invention comprises melt-coating the wate ⁇ roofing adhesive 14 onto the silicone or wax surface 26 of the exemplary release liner composite 16 (See Figs. 1 and 1A) which contains the plurality of cutting strings 22 prepositioned and held in a spaced- apart arrangement by the polyolefin coating or film 22 which is bonded to the paper
- the moisture barrier membrane 10 may be adhered to a building or construction surface, either in part by pulling one of the strings 22 through the paper sheet 20 and removing a portion of the release liner composite 16, or the release liner 16 may be removed in its entirety.
- the cutting string 22 is pulled through
- the use of the polyolefin coating or film 22 over the entire surface of the paper sheet 20 strengthens the tear resistance of the paper 20, thereby allowing thinner paper thicknesses to be used, and thus allowing thinner strings to be used, thereby reducing the amount of waste to be generated at the application site by release paper that is removed from the wate ⁇ roofing adhesive 14 and discarded.
- the tear resistance, tensile strength, and other physical properties of the paper will depend upon a number of factors, such as the tenacity of the releasable bond between the wate ⁇ roofing adhesive and release coating. Generally, the tear strength and tensile strength should be selected such that the release liner composite 16 or selected portions thereof (e.g., as may be partially sectioned off using the cutting strings 22) can be removed without leaving substantial patches of paper (20) on the wate ⁇ roofing adhesive layer 14.
- margin edge release coating portions 18A and optionally release coating strips corresponding with the location of cutting strings 22
- the use of the margin edge release coating portions 18A (and optionally release coating strips corresponding with the location of cutting strings 22) on the back side of the release liner composite 16 will provide added resistance to notch failure (edge tearing), during pealing-removal of the release liner 16 from the wate ⁇ roofing adhesive, such that substantial patches of paper are not left on the exposed wate ⁇ roofing adhesive layer surface which is intended to become adhered to the target building or civil engineering surface.
- the paper sheet 20 may be coated on one major face with at least one polyolefin coating 24 or film, and more preferably the paper 20 is coated on both sides with at least one polyolefin coating or film (26 and 28).
- the double face coating is preferred, since this is believed to enhance tear resistance of the paper on both sides of the release liner composite edge margins 18 A, which are intended to be releasably- attached on both sides to the wate ⁇ roofing adhesive (e.g., full face and edge-bead 15).
- Exemplary paper sheets 20 suitable for use in the present invention are kraft papers having an average basis weight of 40-90 gms/cm 2 , more preferably 50-85 gms/cm 2 , and most preferably 60-80 gms/cm 2 .
- Exemplary polyolefin coatings and films 24 and 28 comprise low density polyethylene, high density polyethylene, polypropylene, or a mixture thereof. High density polyethylene is preferred.
- the average coating or film thickness is 0.01 to 2.0 mils, more preferably 0.05 to 1.5 mils, and most preferably 0.1 to 1.25 mils.
- the average thickness of the polyolefin coating 24 on the major face 17 disposed against the wate ⁇ roofing adhesive 14 should preferably be at least equal to, and more preferably should exceed, the average thickness of the polyolefin coating 18A of the margin edge on the other major face 18 of the paper sheet 20.
- the polyolefin is melt-bonded to the paper by curtain coating a continuously moving paper substrate and nipping the coated paper between opposed rollers to ensure a uniform coating thickness.
- a polyolefin film (less than 2 mils) is laminated onto the paper using heated rollers.
- Exemplary release coatings 26 and 18A on the release liner composite should have an average thickness of 0.01 to 1.5 mil, more preferably 0.05 to 1.0 mil, and most preferably 0.1 to 0.5 mil.
- the release coating e.g., silicone or wax
- an exemplary method of the invention permits fast and accurate placement of exemplary moisture barrier (e.g., wate ⁇ roofing) membranes of the invention.
- a first wate ⁇ roofing membrane 30 is attached to the desired surface, with the carrier sheet 32 on top, after the release liner has been removed.
- the membrane has longitudinally-extending exposed edge-beads 34 of wate ⁇ roofing adhesive which extend beyond, or which have cold-flowed beyond, the outermost edges of the carrier sheet 32.
- a second wate ⁇ roofing membrane 10 can be accurately placed into overlap position onto a longitudinally-extending edge bead of the prior installed membrane 30, and the release liner composite 16 can be removed by peeling motion at an angle with respect to the longitudinal direction of the membrane 10.
- an exemplary method of the invention comprises: positioning, in unrolled form, a moisture barrier 10 onto a building (e.g., roof deck, foundation, wall, etc.) or civil engineering surface (e.g., tunnel, bridge surface, pipe, etc.), the moisture barrier 10 comprising a carrier support sheet 12, wate ⁇ roofing adhesive layer, and a removably-attached release liner composite 16 comprising a paper sheet, at least one polyolefin coating or film bonded to said paper sheet, and a plurality of strings for cutting the paper sheet when a string is pulled through the paper sheet, said strings being contained between said paper sheet and said at least one polyolefin coating or film, and said release liner composite 16 further comprising a release agent (such as silicone or wax) on the major face that is releasably-attached to the wate ⁇ roofing adhesive layer and further comprising a release agent on the opposite major face of said release liner
- a release agent such as silicone or wax
- the release liner composite 16 can be removed as a full sheet, or it can be removed in strip portions, due to the fact that it contains cutting strings as shown at 22 in Fig. 1 A.
- the fact that the membrane 10 can be unrolled and positioned into place before removal of the release liner 16 (or any portion thereof) provides advantages in terms of convenience and accuracy of placement, when compared to the prior art method of unrolling the membrane in the direction of release paper peel-off, as shown in US patent 3,900,102 (See Fig. 4).
- the use of a polyolefin coating or film to secure the cutting strings against the paper sheet allows thinner paper (and preferably thinner strings) to be used, while enhancing tear resistance of the paper-based release sheet composite 10 as a whole.
- the cutting strings have an average diameter of 1-2 mils, and are preferably made of monofilament polyester and have a color (e.g., yellow) to facilitate finding the string during installation.
- an exemplary moisture barrier of the invention can be positioned into place, and an edge strip of the release liner composite can be removed by pulling a string, located close to the edge, through the paper release liner.
- the string cuts through the paper, and not the underlying polyethylene coating binding the strings against the paper, nor the release agent coating (silicone) that releasably attaches the paper/polyethylene side to the wate ⁇ roofing adhesive layer
- an entire strip portion of the release liner composite (comprising the paper, polyethylene, and release coating) is removed due to the fact that the polyethylene is bonded to the paper and the fact that the release agent coating preferentially attaches to the (polyethylene coated side of) the paper.
- the total thickness of the release liner composite 10 is 2-7 mils, and more preferably 4-6.5 mils.
- membranes 10 of the invention have a skid-resistant coating on the back of the carrier support sheet 12 to provide some friction to foot traffic when the membrane is installed on a building surface. Any conventional skid-resistant coating may be used.
Abstract
Description
Claims
Priority Applications (6)
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CA2514739A CA2514739C (en) | 2003-01-30 | 2004-01-16 | Moisture barrier membrane with tearable release liner composite |
CN2004800090464A CN1863671B (en) | 2003-01-30 | 2004-01-16 | Moisture barrier membrane with tearable release liner composite |
US10/543,353 US7550187B2 (en) | 2003-01-30 | 2004-01-16 | Moisture barrier membrane with tearable release liner composite |
KR1020057013922A KR101054103B1 (en) | 2003-01-30 | 2004-01-16 | Moisture barrier membrane with tearable release liner composite |
EP04702969.9A EP1587673B1 (en) | 2003-01-30 | 2004-01-16 | Moisture barrier membrane with tearable release liner composite |
HK07102484.2A HK1095118A1 (en) | 2003-01-30 | 2007-03-06 | Moisture barrier membrane with tearable release liner composite |
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US44379803P | 2003-01-30 | 2003-01-30 | |
US60/443,798 | 2003-01-30 |
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EP (1) | EP1587673B1 (en) |
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EP1587673B1 (en) | 2013-06-05 |
EP1587673A4 (en) | 2010-11-24 |
US7550187B2 (en) | 2009-06-23 |
WO2004070108A3 (en) | 2004-10-07 |
CA2514739A1 (en) | 2004-08-19 |
CN1863671A (en) | 2006-11-15 |
US20060141191A1 (en) | 2006-06-29 |
KR20050095778A (en) | 2005-09-30 |
KR101054103B1 (en) | 2011-08-03 |
CN1863671B (en) | 2011-01-19 |
HK1095118A1 (en) | 2007-04-27 |
EP1587673A2 (en) | 2005-10-26 |
CA2514739C (en) | 2011-10-04 |
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