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WO1998013636A2 - Bande auto-etanche et auto-adhesive pour isolation - Google Patents

Bande auto-etanche et auto-adhesive pour isolation Download PDF

Info

Publication number
WO1998013636A2
WO1998013636A2 PCT/US1997/017208 US9717208W WO9813636A2 WO 1998013636 A2 WO1998013636 A2 WO 1998013636A2 US 9717208 W US9717208 W US 9717208W WO 9813636 A2 WO9813636 A2 WO 9813636A2
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
layer
pressure sensitive
recited
insulation
Prior art date
Application number
PCT/US1997/017208
Other languages
English (en)
Other versions
WO1998013636A3 (fr
Inventor
James T. Boyle
Lewis S. Cohen
Original Assignee
Venture Tape Corporation
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 Venture Tape Corporation filed Critical Venture Tape Corporation
Priority to AU45013/97A priority Critical patent/AU4501397A/en
Publication of WO1998013636A2 publication Critical patent/WO1998013636A2/fr
Publication of WO1998013636A3 publication Critical patent/WO1998013636A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeves; consisting of two half sleeves; comprising more than two segments
    • F16L59/022—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeves; consisting of two half sleeves; comprising more than two segments with a single slit
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/263—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer having non-uniform thickness
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Definitions

  • This invention relates generally to insulation for use with fluid conduits, such as pipes, and more particularly to a pressure sensitive adhesive sealing system for insulating segments for fluid conduits.
  • Pipes which are found in dwellings, commercial buildings or in industrial plants and which carry steam, hot water, cold water, chemicals or petroleum products and the like are often provided with an exterior layer of insulation.
  • Such pipes may be formed of copper, steel, aluminum, plastic, rubber or other like materials.
  • This exterior layer of insulation frequently comprises a fiberglass jacket which is wrapped about the pipe.
  • the insulation also may be formed of a foam material, such as polyethylene, polyvinylchloride or polypropylene.
  • These jackets generally are applied as cylindrical segments which abut one another, end-to-end. Each segment typically comprises a generally cylindrically-shaped block of insulation having a centrally disposed, axially aligned channel adapted to receive the pipe.
  • Each segment also typically comprises an inner, metallized layer, adjacent the pipe and an outer layer or facing formed of paper which typically is a Kraft paper.
  • the facing frequently is formed of a scrim laminated between two paper layers or between a paper layer and a polyester or aluminized polyester layer to produce a textured outer surface.
  • the scrim may also be laminated between two aluminized polyester layers or between a polyester layer and an aluminized polyester layer.
  • the facing may also be formed of polypropylene and aluminum foil laminated together.
  • Each segment typically is slit along its axial length so that the pipe may be inserted into the central channel through the slit. An overlapping flap is used to draw the two portions of the slit together and to seal the slit.
  • the outer edge of this flap is secured to the outer surface of the insulation segment to provide the desired seal.
  • a layer of pressure sensitive adhesive is applied to the undersurface of the flap and is covered with a layer of release paper for protection of the adhesive prior to use.
  • This pressure sensitive adhesive on the underside of the flap usually is applied at the factory, along with the release paper.
  • a product includes a first adhesive layer for bonding to the underside of the flap, a substrate carrier for carrying the adhesive layer, a second adhesive layer which is adapted to bond to the outer surface of the segment, and a layer of release paper for covering the second adhesive layer prior to use.
  • the adhesive structure is provided on a roll which can be transferred to the underside of the flap at the job site or at the factory.
  • the structure of the adhesive system is the same as that described above, except that a second layer of release paper covers the adhesive layer adapted to be secured to the underside of the flap. This release paper is removed prior to securing the adhesive structure to the flap. In either product, a finger-lift edge can be provided to assist in the removal of the release paper. While the foregoing existing structures work adequately, it would be desirable to be able to produce a less expensive product which performed in the same manner, but which had fewer layers and which could be produced using fewer manufacturing steps.
  • the adhesive structure comprises a layer of a pressure sensitive adhesive coated onto a heat sealabie adhesive film.
  • a release paper layer covers the exposed surface of the pressure sensitive adhesive layer not secured to the heat sealabie adhesive film.
  • the heat sealabie film is formed of a hot melt adhesive which is supplied as a clear, dry, non-tacky film.
  • the process of making this structure includes the step of applying a liquid pressure sensitive adhesive onto a layer of release paper and transporting the liquid adhesive and release paper through a series of thermal curing stations to produce a layer of pressure sensitive adhesive on the release paper. Thereafter, a heat sealabie adhesive film is unwound and nipped to the cured pressure sensitive adhesive film at a lamination station. The resulting product is wound onto a master roll.
  • the roll of layered adhesive structure is unwound and applied to a layer of insulation facing, typically kraft paper, through heat assisted nip rollers.
  • the heat sealabie adhesive film is heat bonded directly to the insulation facing which serves as the flap for the insulation segments.
  • the combined product is then sent to a pipe insulation wrapping apparatus which rolls the insulation segments, cuts them, and wraps the paper about them.
  • the insulation segments may also be manually rolled, wrapped and cut.
  • the present invention provides a better bond between the flap and the outer surface of the insulation segment because of the improved bond between the heat sealabie adhesive film and the flap.
  • the product is less expensive to produce, since no substrate is required, as the heat sealabie adhesive film acts as both the substrate and the adhesive layer which bonds the structure to the underside of the flap. Also, both adhesive layers can be applied in one pass through the coating equipment, while the prior art product requires two passes through the coating equipment.
  • Fig. 1 is a partially cutaway, perspective view of a pipe insulation segment used with the present invention
  • Fig. 2 is a cross-sectional side view of a cutaway portion of a prior art adhesive product
  • Fig. 3 is a cross-sectional side view of a cutaway portion of an adhesive structure in accordance with this invention
  • Fig. 4 is a side schematic view illustrating the manufacturing process of this invention
  • Fig. 5 is a side schematic view illustrating the process of applying the adhesive structure of this invention to the surface of paper used in an insulation segment.
  • FIG. 1 illustrates a portion of an insulation segment 10 installed about pipe 12.
  • Pipe 12 may be any conventional hot or cold water pipe, steam pipe or pipe for carrying chemicals or petroleum products or the like.
  • Pipe 12 may be formed of any conventional material such as copper, steel, plastic, aluminum or rubber.
  • Segment 10 typically comprises an outer flame retardant layer 16, a middle insulating layer 17 and an inner metallized layer 18.
  • layer 16 and metallized layer 18 are secured to opposite sides of layer 17 using a flame resistant laminating adhesive.
  • the metallized layer also can be disposed between layer 16 and layer 17.
  • metallized layer 18 is a layer of aluminum foil, while in another embodiment, metallized layer 18 is an aluminized polyester film. Segment 10 also may have an outer layer of a plastic material such as polyvinylchloride (not shown).
  • layer 16 is formed of a high intensity, white, chemically treated kraft paper, and the weight of the paper is in the order of 30 to 45 pounds per 3,000 square feet.
  • Layer 16 also may comprise a scrim disposed between two paper layers or a paper layer and a polyester layer or between two metallized polyester layers or between a metallized polyester layer and a polyester layer. This combination produces a textured outer surface which has a raised pattern identical to the scrim pattern.
  • Layer 16 also may be formed of polypropylene and aluminum foil laminated together.
  • Layer 17 typically, although not always, is comprised of fiberglass scrim yarns oorr a mixture of fiberglass and PET yarns, and has a tridimensional 5X5 fiberglass construction.
  • Layer 17 also may be a closed cell foam formed of a material such as polyethylene, polyvinylchloride, or polypropylene. Segment 10 is split along its entire length at slit 50 so that pipe 12 can be inserted into a central channel 12, and slit 50 is adapted to be sealed along its length by a flap 52. Flap 52 typically is an extension of layer 16, or if layers 16 and 18 are laminated together to form a single unit, flap 52 is an extension of the unit formed by layers 16 and 18.
  • an adhesive strip 80 is provided on the undersurface of flap 52 for sealing of flap 52 to the outside surface of layer 16 adjacent to slit 50.
  • Strip 80 extends the entire length of flap 52 and is covered with a layer 81 of release paper prior to sealing of the flap.
  • a typical, prior art adhesive structure 20 for use as strip 80 is illustrated in Fig. 2.
  • Structure 20 includes a substrate 22 which is coated on one side with a conventional pressure sensitive adhesive layer 24 which is adapted to be secured to the underside of flap 52.
  • adhesive layer 26 formed of another pressure sensitive adhesive.
  • Adhesive layer 26 is adapted to secure flap 52 to the outer surface of layer 16 adjacent slit 50.
  • Layers 24 and 26 typically comprise an isooctyl acrylate polymer as described in U.S. Patent No. 4,780,347, or some other like adhesive.
  • Adhesive layer 26 is covered by a layer of release paper 28 which typically comprises a piece of paper coated with a silicon material which releasably adheres to an acrylic adhesive.
  • release paper 28 typically comprises a piece of paper coated with a silicon material which releasably adheres to an acrylic adhesive.
  • structure 20 is applied to flap 52 at the factory and is present on segment 10 when it arrives at the job site. However, in some instances, it is desirable to apply structure 20 to flap 52 at the job site. In these instances, structure 20 is provided on a roll, and structure 20 includes another layer of a release paper (not shown) covering adhesive layer 24.
  • Structure 40 contains no substrate. Rather, structure 40 is comprised of a pressure sensitive adhesive layer 42, a heat sealabie adhesive layer 44 disposed on one side of layer 42 and a layer of release paper 46 disposed on the other side of layer 42.
  • Layer 44 typically is a clear, dry, non-tacky film formed of a hot melt adhesive. Layer 44 provides the dual function of a substrate and an adhesive.
  • adhesive layer 42 may be a two component, solvent based adhesive system in which the primary component is an acrylic polymerized from monomers such as methyl methacrylate and butyl methacrylate.
  • suitable solvents include toluene, isopropanol, heptane, hexane, and any other solvent capable of dissolving an acrylic.
  • the solvent content typically is in the range of from about 45% to about 47%, although higher and lower solvent contents are acceptable.
  • Adhesive layer 42 also may include plasticizers and tackifiers to increase the adhesion properties.
  • the viscosity of the adhesive may be in the range of from about 1,000 to about 25,000 centipoise at this solvent content, although a preferred viscosity is in the range of from about 4,000 to about 10,000 centipoise.
  • the peel adhesion of this adhesive when coated at one mil and tested in accordance with PSTC-1 is between about 3.0 and about 3.5 pounds per inch.
  • the Williams plasticity index typically is between about 2.2 and about 2.5 millimeters.
  • An acceptable, commercially available candidate for adhesive layer 42 is an adhesive such as POLYTAC 377 produced by H & N Chemical in Totowa, New Jersey 07512.
  • Another suitable adhesive is an isooctyl acrylate polymer as described in U.S. Patent No. 4,780,347.
  • Layer 44 may include an adhesive resin from a family comprising an ethylene-acrylic acid copolymer, an ethylene-vinyl acetate copolymer, or a homopolymer such as low density polyethylene. Layer 44 may also be a coextrusion of a polyethylene film and ethylene-vinyl acetate film. Layer 44 preferably comprises a material where the heat activation temperature is about 215 °F or above. Layer 44 typically is about 1 mil in thickness although a film thickness as high as 3 mils is also acceptable. A typical, final coating weight for this heat sealabie adhesive is about .793 ounces per square yard.
  • An acceptable, commercially available candidate for this product is an adhesive film such as DAF 899 provided by Dow Chemical Company of Midland, Michigan 48674. Another commercially available candidate for this product is a polyethylene film available from Deerfield Plastics.
  • Coating apparatus 120 includes adhesive application station 92, curing ovens 96, corona treatment station 89, lamination station 98, supply roll 107, take-up roll 106 and supply roll 102.
  • Application station 92 typically includes three rollers 93, 95 and 97, and a container 91 with a supply of adhesive 94.
  • Release paper 90 to which adhesive is applied passes around roller 93 and between rollers 93 and 95, which are spaced from one another. Roller 97 remains stationary.
  • Roller 95 picks up adhesive 94 from container 91 and as roller 95 rotates past container 91, adhesive is carried to release paper 90 where the adhesive transfers to the release paper.
  • roller 95 rotates in the same direction as roller 93, such as in a counterclockwise direction, as shown in Fig. 4, so that the lower surface of roller 95 moves in a direction opposite of paper 90 and the upper surface of roller 93.
  • Stationary roller 97 uniformly meters the amount of adhesive transferred to paper 90 across the entire surface thereof. The spacing between rollers 97 and 95 may be adjusted to adjust the coating weight of the adhesive on the release paper.
  • application station 92 may include a knife (not shown) disposed a fixed distance above roller 95 to meter the adhesive onto paper 90.
  • Application station may also be comprised of a slotted extrusion die configuration (not shown) in which adhesive is forced through a slot in a die and deposited onto paper 90.
  • Curing ovens 96 are conventional electric or gas fired chambers that heat the release paper and adhesive to a predetermined curing temperature.
  • Corona treatment station 89 corona treats the heat sealabie adhesive film before it is applied to the adhesive-coated release paper.
  • Lamination station 98 includes rubber coated steel nip rollers 100 which laminate the heat sealabie adhesive film to the adhesive on the release paper.
  • release paper is provided as a continuous roll 107.
  • Release paper 90 passes between rollers 93 and 95 in application station 92 at which point adhesive 94 is applied to a silicon coated side of paper 90 in the desired coating weights and thicknesses.
  • adhesive may be metered on with a knife (not shown) or extruded on using a slotted extrusion die (not shown).
  • the adhesive is applied on an outwardly facing side of paper 90, as shown in Fig. 4.
  • a preferred wet coating weight is about 2.4 ounces per square yard.
  • Adhesive 94 is applied such that it has about a 3.0 mil wet thickness, so that the final, cured coating weight of adhesive layer 94, which later
  • the composite comprised of paper 90 and adhesive 94 is passed through curing ovens 96 which heat adhesive 94 to a temperature of about 250°F. Curing ovens 96 vaporize the solvents and cure the adhesive in a known manner.
  • the combined release paper 90 and adhesive 94 composite is then passed through a lamination station 98.
  • film 104 formed of a heat sealabie adhesive is retrieved from roll 102 and passed through lamination station 98. Film 104 ultimately becomes layer 44 as shown in Fig. 3.
  • Film 104 and the composite formed of release paper 90 and adhesive 94 pass through the nip at rollers 100 such that film 104 is urged into contact with adhesive 94.
  • the pressure produced by rollers 100 activates pressure sensitive adhesive 94 to bind film 104 to adhesive 94.
  • the resulting laminated product is then rolled onto a master roll 106.
  • release paper 90 is a single sided release paper having a silicon coating on only one side.
  • role 106 is cut into a plurality of rolls of tape 107 of the finished laminate having the desired width.
  • These rolls contain structure 40 of Fig. 3.
  • structure 40 is applied to segment 10 at the factory.
  • a roll of tape of structure 40 could be taken to the job site and segments could be manually applied at that location.
  • the process of applying structure 40 to an insulation segment 10 at the factory will now be described with particular reference to Fig. 5.
  • layer 16 of segment 10 is provided as a continuous sheet 1 10 on a roll 112.
  • the side of sheet 110 to be bonded to tape 107 may be formed of metal, polypropylene or polyester.
  • tape 107 is unwound from its roll and is advanced toward rollers 114 at the same time as an edge of sheet 110 is advanced.
  • Adhesive film 104 is placed into contact with one side of sheet 1 10 along one edge. Tape 107 and an edge of sheet 110 are nipped together through nip rollers 114 which are heated. The combination of the nip pressure of the rollers and the applied heat activates adhesive film 104 to bind film 104 and thus tape 107 to sheet 1 10 along one edge thereof. This edge of sheet 1 10 ultimately becomes flap 52 (not shown).
  • Sheet 110 with tape 107 attached to one edge is passed to an insulation wrapping station where sheet 1 10 is wrapped about insulation, which may be fiberglass or a suitable foam, as described.
  • the wrapping step may either be manual or automated.
  • the wrapped insulation is cut into cylindrical insulation segments in a known manner.
  • the edge of sheet 1 10 which carries tape 107 is left free to form flap 52.
  • the present invention reduces the cost of the adhesive strip 80 disposed on flap 52 on an insulation segment 10 by eliminating substrate 22 and its attendant costs as well as a second layer of adhesive 24 or 26.
  • only one pass through the coating equipment is required, while the prior art structure required a second pass through the coating equipment to apply the second layer of adhesive.
  • the particular adhesive selected bonds more tightly to flap 52 than previously used adhesives.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Thermal Insulation (AREA)

Abstract

L'invention porte sur un système adhésif destiné à être utilisé avec le rabat d'un segment isolant d'une conduite cylindrique. Ce système adhésif comporte un film constitué d'un adhésif thermofusible lié à une couche d'un adhésif autocollant qui repose sur une feuille de papier libérable enduite d'une couche libérable à base de silicium.
PCT/US1997/017208 1996-09-27 1997-09-25 Bande auto-etanche et auto-adhesive pour isolation WO1998013636A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45013/97A AU4501397A (en) 1996-09-27 1997-09-25 Pressure sensitive self-seal lap for insulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72319196A 1996-09-27 1996-09-27
US08/723,191 1996-09-27

Publications (2)

Publication Number Publication Date
WO1998013636A2 true WO1998013636A2 (fr) 1998-04-02
WO1998013636A3 WO1998013636A3 (fr) 1998-06-18

Family

ID=24905236

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/017208 WO1998013636A2 (fr) 1996-09-27 1997-09-25 Bande auto-etanche et auto-adhesive pour isolation

Country Status (2)

Country Link
AU (1) AU4501397A (fr)
WO (1) WO1998013636A2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048888A3 (fr) * 1999-04-23 2000-11-08 Aeroflex International Co., Ltd. Elément isolant pour tuyaux
EP1138996A1 (fr) * 2000-03-27 2001-10-04 Aeroflex International Co., Ltd. Elément isolant pour tuyaux
US8936847B2 (en) 2006-04-19 2015-01-20 Promethean Insulation Technology Llc Metallized polymeric film reflective insulation material
CN104879612A (zh) * 2015-05-04 2015-09-02 大唐国际发电股份有限公司 一种复合保温材料及保温方法
WO2018064181A1 (fr) * 2016-09-27 2018-04-05 Porter Kenneth L Feuilles de matériau d'emballage de balles récoltées
US10377545B2 (en) 2015-03-24 2019-08-13 L.P. Brown Company, Inc. Wrapping materials for solid objects
US10940985B2 (en) 2013-07-26 2021-03-09 Tama Plastic Industry Wrapping web assembly and wrapping method
US10960639B2 (en) 2013-08-20 2021-03-30 Tama group Wrapping material and method of manufacturing for baling materials
US11142382B1 (en) 2019-04-19 2021-10-12 L.P. Brown Company, Inc. Harvested bale wrapping material and sealing accessory to deliver and protect a closing adhesive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022248A (en) * 1975-09-24 1977-05-10 Owens-Corning Fiberglas Corporation Pipe having insulating material and cover and having two strips of self-sealing adhesive material
US4243453A (en) * 1979-05-14 1981-01-06 Morgan Adhesives Company Methods for application and use of a composite pressure sensitive adhesive construction
US4595615A (en) * 1984-10-05 1986-06-17 Venture Tape Corp. Pipe insulation for cold weather applications
US4778703A (en) * 1987-04-02 1988-10-18 Compac Corporation Adhesive tape for insulation application
US5104701A (en) * 1987-09-15 1992-04-14 Venture Tape Corp. Insulation with tape adhering surface and tape therefor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048888A3 (fr) * 1999-04-23 2000-11-08 Aeroflex International Co., Ltd. Elément isolant pour tuyaux
EP1138996A1 (fr) * 2000-03-27 2001-10-04 Aeroflex International Co., Ltd. Elément isolant pour tuyaux
US8936847B2 (en) 2006-04-19 2015-01-20 Promethean Insulation Technology Llc Metallized polymeric film reflective insulation material
US10940985B2 (en) 2013-07-26 2021-03-09 Tama Plastic Industry Wrapping web assembly and wrapping method
US10960639B2 (en) 2013-08-20 2021-03-30 Tama group Wrapping material and method of manufacturing for baling materials
US12011906B2 (en) 2013-08-20 2024-06-18 Tama group Methods of wrapping an item with a wrapping material
US10377545B2 (en) 2015-03-24 2019-08-13 L.P. Brown Company, Inc. Wrapping materials for solid objects
US10710786B2 (en) 2015-03-24 2020-07-14 L.P. Brown Company, Inc. Wrapping materials for solid objects
CN104879612A (zh) * 2015-05-04 2015-09-02 大唐国际发电股份有限公司 一种复合保温材料及保温方法
WO2018064181A1 (fr) * 2016-09-27 2018-04-05 Porter Kenneth L Feuilles de matériau d'emballage de balles récoltées
US10264732B2 (en) 2016-09-27 2019-04-23 L.P. Brown Company, Inc. Harvested bale wrapping material sheets
US11142382B1 (en) 2019-04-19 2021-10-12 L.P. Brown Company, Inc. Harvested bale wrapping material and sealing accessory to deliver and protect a closing adhesive

Also Published As

Publication number Publication date
WO1998013636A3 (fr) 1998-06-18
AU4501397A (en) 1998-04-17

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