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US20130087409A1 - Optimized pattern of a damping layer for wall, floor, and ceiling constructions - Google Patents

Optimized pattern of a damping layer for wall, floor, and ceiling constructions Download PDF

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Publication number
US20130087409A1
US20130087409A1 US13/631,054 US201213631054A US2013087409A1 US 20130087409 A1 US20130087409 A1 US 20130087409A1 US 201213631054 A US201213631054 A US 201213631054A US 2013087409 A1 US2013087409 A1 US 2013087409A1
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US
United States
Prior art keywords
canceled
polymer resin
acoustic damping
areas
damping article
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Abandoned
Application number
US13/631,054
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English (en)
Inventor
Sylvain Payot
Georges Moineau
Benjamin Mardaga
Ahmet Comert
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.)
Saint Gobain Innovative Materials Belgium SA
Original Assignee
Saint Gobain Performance Plastics Chaineux SA
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 Saint Gobain Performance Plastics Chaineux SA filed Critical Saint Gobain Performance Plastics Chaineux SA
Priority to US13/631,054 priority Critical patent/US20130087409A1/en
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS CHAINEUX reassignment SAINT-GOBAIN PERFORMANCE PLASTICS CHAINEUX ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COMERT, AHMET, MARDAGA, BENJAMIN, MOINEAU, GEORGES, PAYOT, SYLVAIN
Publication of US20130087409A1 publication Critical patent/US20130087409A1/en
Priority to US14/688,719 priority patent/US9580901B2/en
Abandoned legal-status Critical Current

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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
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • 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
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E04B2001/8466—Solid slabs or blocks layered with an intermediate layer formed of lines or dots of elastic material

Definitions

  • FIG. 2 includes a graph displaying damping factor dependency from the Patterned Interlayer Stiffness (PIS).
  • PIS Patterned Interlayer Stiffness
  • FIG. 3 includes a graph displaying damping performances for various stripe patterns over an audible frequency range.
  • the polymer resin coverage may not be greater than about 450 g/m 2 , such as not greater than about 400 g/m 2 , not greater than about 350 g/m 2 , not greater than about 300 g/m 2 , not greater than about 250 g/m 2 not greater than about 200 g/m 2 , not greater than about 180 g/m 2 , not greater than about 150 g/m 2 , or even not greater than about 120 g/m 2 .
  • the acoustic damping article has a modal damping factor in the range between 50 to 850 Hz of at least about 20%, such as at least about 25%, at least about 30%, at least about 35%, at least about 40%, or at least about 45%.
  • the acoustic damping article may have a first shortest distance not greater than about 30 mm, such as not greater than about 28 mm, not greater than about 25 mm, not greater than about 23 mm, not greater than about 20 mm, not greater than about 18 mm, not greater than about 15 mm, not greater than about 13 mm, not greater than about 10 mm, not greater than about 8 mm, or even not greater than about 5 mm.
  • the acoustic damping article can have a second shortest distance between edges of two coated areas.
  • the second shortest distance may not be greater than about 40 mm, such as not greater than about 35 mm, not greater than about 30 mm, not greater than about 28 mm, not greater than about 25 mm, not greater than about 22 mm, not greater than about 20 mm, not greater than about 18 mm, or even not greater than about 15 mm.
  • the acoustic damping article can have a third shortest distance between edges two coated areas.
  • the third shortest distance may not be greater than about 45 mm, such as not greater than about 42 mm, not greater than about 40 mm, not greater than about 38 mm, not greater than about 35 mm, not greater than about 33 mm, not greater than about 30 mm, not greater than about 28 mm, or even not greater than about 25 mm.
  • the polymer resin is formed from a monomer, such as an acrylic acid, an acrylate, a methyl methacrylate, ethyl methacrylate, methacrylate, methyl acrylate, ethyl acrylate, vinyl acetate, derivatives thereof, or any combination thereof.
  • a monomer such as an acrylic acid, an acrylate, a methyl methacrylate, ethyl methacrylate, methacrylate, methyl acrylate, ethyl acrylate, vinyl acetate, derivatives thereof, or any combination thereof.
  • the polymer resin may be an acrylic resin.
  • the acrylic resin may have an alkyl group having from 1-4 carbon atoms, a glycidyl group or a hydroxyalkyl group having from 1-4 carbon atoms.
  • Representative acrylic polymers include polyacrylate, polymethyl methacrylate, polyethyl methacrylate, polybutyl methacrylate, polyglycidyl methacrylate, polyhydroxyethyl methacrylate, polymethyl acrylate, polyethyl acrylate, polybutyl acrylate, polyglycidyl acrylate, polyhydroxyethyl acrylate, or any combination thereof.
  • the acrylic resin is in the form of an emulsion, such as a water-based emulsion.
  • the acrylic resin may be an adhesive acrylic resin, such as a pressure-sensitive adhesive acrylic resin.
  • the Patterned Interlayer Stiffness is the product of shear modulus and coverage divided by the thickness of the polymer resin layer.
  • the PIS can correlate to the modal damping factor.
  • a constant PIS can correlate to a constant damping factor.
  • the unit of PIS can be expressed in giganewton (GN) per cubic meters.
  • the acoustic damping article has a PIS of at least about 1 GN/m 3 , such as at least about 2 GN/m 3 , at least about 4 GN/m , at least about 6 GN/m 3 , at least about 8 GN/m 3 , at least about 10 GN/m 3 , at least about 12 GN/m 3 , at least about 14 GN/m 3 , or even at least about 16 GN/m 3 .
  • the acoustic damping article has a PIS which is not greater than about 25 GN/m 3 , such as not greater than about 22 GN/m 3 , not greater than about 20 GN/m 3 , not greater than about 18 GN/m 3 , not greater than about 16 GN/m 3 , not greater than about 14 GN/m 3 , not greater than about 12 GN/m 3 , not greater than about 10 GN/m 3 , or even not greater than about 8 GN/m 3 .
  • the percent coverage p is at least about 0.1, such as at least about 0.2, at least about 0.3, at least about 0.4, at least about 0.5, at least about 0.6, at least about 0.7, at least about 0.8, or at least about 0.9.
  • the percent coverage p is not greater than about 0.95, such as not greater than about 0.9, not greater than about 0.85, not greater than about 0.8, not greater than about 0.75, not greater than about 0.7, not greater than about 0.65, not greater than about 0.6, not greater than about 0.55, not greater than about 0.5, not greater than about 0.45, or not greater than about 0.4.
  • the shear modulus G′ of the polymer resin can be not greater than about 100 MPa at about 1000 Hz and at room temperature, such as not greater than about 80 MPa, not greater than about 70 MPa, not greater than about 60 MPa, not greater than about 50 MPa, or even not greater than 40 MPa.
  • the shear modulus G′ of the polymer resin can be at least about 0.2 MPa, such as at least 0.5 MPa, at least about 1 MPa, at least about 2 MPa, at least about 5 MPa, at least about 10 MPa, at least about 20 MPa, or even at least about 40 MPa,
  • the acoustic damping article includes a polymer resin that has an inherent damping loss factor of at least about 0.4, such as at least about 0.5, at least about 0.6, at least about 0.7, at least about 0.8, at least about 0.9, or even at least about 1.
  • the acoustic damping article includes a polymer resin coating at least one area of the coated areas is in the shape of a rectangle, a square, a triangle, a pentagon, a hexagon, a circle, a circular section, a ring , a section of a ring, a half ring, or a combination thereof.
  • the coated areas can be a rectangle abutting to a half ring, the half ring abutting to another rectangle, thereby the coated areas displaying a U-shape.
  • the rectangle is defined by sides a and b, wherein a proportion of length (a)/length (b) can be greater than about 1, such as greater than about 2, greater than about 5, greater than about 10, greater than about 20, greater than about 50, greater than about 100, greater than about 500, greater than about 1000, or even greater than about 5000.
  • a method of preparing a construction panel includes coating a first major surface of a first rigid panel with a polymer resin in a set of areas.
  • the coverage of the polymer resin cannot be greater than about 500 g/m 2 .
  • a method of preparing a construction panel includes coating a first major surface of a first rigid panel with a polymer resin in a set of areas.
  • the coated areas can have a first shortest distance d 1 between edges of two coated areas of not greater than about 25 mm.
  • the polymer resin can be coated on two liners having different release formulations between the coating and each liner. That way a pattern can be stored on a roll for custom-made use on construction sites or for customer-specified sale. Measured strips can be taken from the role, one liner removed and the pattern can be applied to a construction panel, while preserving the opposing side with a liner until the second construction panel is mounted to the wall.
  • the polymer resin can also be coated on one liner having different release formulations between the coating on each side of the liner.
  • an acoustic damping article comprises a polymer resin 102 which is partially disposed between a first rigid panel member 104 and a second rigid panel member 106 . Since the resin is partially disposed, there are polymer resin-free spaces 108 between the two panels 104 and 106 .
  • the polymer resin when disposed between the two rigid panels ( 104 and 106 ), the polymer resin may have a thickness in a range of 25 micrometers to 5 millimeters, such as a range of 100 micrometers to 5 millimeters, a range of 500 micrometers to 5 millimeters, or even a range of 1 millimeter to 5 millimeters.
  • the resin-free spaces 108 can be filled with material.
  • material can be material such as polymers, foams, or fabrics. These materials can have the same function as the polymer resin, such as they can be sound absorbing or sound reducing, e.g., soft foam, fiberglass, or mineral wool.
  • the material filling the resin free space can have another function, e.g., heat insulation.
  • an additional discontinuous layer (not illustrated) of polymer resin may be applied to the second major surface of the rigid panel 106 .
  • Another rigid panel (not illustrated) may be applied in contact with the additional discontinuous layer of polymer to form a three rigid member panel with two acoustic composition layers.
  • the width of the layer 102 can vary and is dependent from the shape and/or pattern of the areas covered by the polymer resin. Likewise the width or volume of the resin-free spaces 108 can vary as well depending from the pattern or shapes used for the polymer resin coated areas. Therefore, one option for quantifying the of polymer resin applied to a rigid panel is by determining the percentage of area of the rigid panel coated and/or the mass of polymer resin covered per square meter (m 2 ).
  • the percentage of area that coats a rigid panel is the sum of all coated area S c over the surface area S t of the side of the rigid panel or substrate that receives the coating. Any percentage can be obtained.
  • the substrate or rigid panel can be covered at about 5%, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 60%, about 70%, about 80%, or even about 90%.
  • the coverage or the mass of polymer resin covered per m 2 can be determined, e.g., by determining the weight difference of the uncoated rigid panel or substrate and the coated rigid panel or substrate and dividing the weight difference by the total surface S area of the one or more sides that received coating.
  • the polymer resin is generally applied as a liquid or gel. The coverage is determined after the polymer resin has dried and all volatile additives, such as solvents, emulsifier, lubricants, etc. have dissipated until the weight of the coated panel or substrate is constant. Any coverage conceivable can be obtained.
  • the coverage can be at least 50 g/m 2 , at least 75 g/m 2 , at least 100 g/m 2 , at least 125 g/m 2 , at least 150 g/m 2 , at least 175 g/m 2 , at least 200 g/m 2 , at least 250 g/m 2 , at least 300 g/m 2 , at least 350 g/m 2 , at least 400 g/m 2 , or even at least 500 g/m 2 .
  • the coverage can be not greater than 600 g/m 2 , not greater than 500 g/m 2 , not greater than 400 g/m 2 , not greater than 350 g/m 2 , not greater than 300 g/m 2 , not greater than 250 g/m 2 , or even not greater than 200 g/m 2 .
  • the damping article as illustrated in FIG. 1 comprising rigid panels 104 and 106 , discontinuous polymer resin layer 102 , and polymer resin-free spaces 108 form a resonating system, wherein resin-free space 108 is designed to serve to geometrically reduce the interlayer stiffness
  • preformed laminates may be formed with the polymer resin.
  • the polymer resin may be applied to a surface of a first rigid panel. The surface of the second rigid panel is placed in contact with the acoustic damping article that is in contact with a major surface with the first rigid panel to form the laminate.
  • MIM Mechanical impedance measurement
  • FIG. 2 displays the correlation of the Patterned Interlayer Stiffness with the damping factor. For example, taking a frequency of about 1000 Hz, the graph indicates that a maximum damping factor can be achieved using a PIS of about 3 GN/m 3 , while maximum damping factors can be achieved at higher frequencies with higher PIS values. Since the PIS value is a property depending from the shear modulus of the glue, the percentage coverage, and the thickness, there are three variables that can be adjusted to achieve a improved damping across a construction panel.
  • FIG. 3 displays such effect on an example of stripes between drywall panels.
  • Commercially available acoustic damping articles are tested for comparison with a sample formed in a manner similar to the samples of Example 1. The samples are tested by placing parallel stripes of Green Glue® formulations in various amounts at various distances on a panel of drywall and measuring the modal damping factor at various frequencies.
  • Green Glue® is available from Green Glue Company of Granville, N.Y.
  • Nine samples were prepared, each sample having an amount of Green Glue® of 140 g/m 2 , 280 g/m 2 , or 410 g/m 2 ; and each sample having stripes in a distance of 20, 30, or 40 mm. A tenth sample with a full coverage of Green Glue® was prepared.
  • the 20 mm spacing of the 140 g/m 2 (S 20 —140 g/m 2 ) coverage shows the highest damping of about 70% at about 1000 Hz.
  • damping of the 30 mm spacing at the 140 g/m 2 (S 30 —140 g/m 2 ) coverage was better at higher frequencies, while coverage of samples higher than 140 g/m shows better damping at frequencies lowest frequencies. From this example, it is shown that combining parallel stripes in various distances, e.g., combining S 20 with S 30 can result in an improved modal damping factor.
  • FIGS. 5 a , 5 b , and 5 c even further disclose that various distances between resin edges can be applied in different pattern.
  • a pattern can unfold with at least two distances d 1 , and d 2 between two edges of squares.
  • the basic pattern 510 displays the elemental unit for the pattern.
  • a pattern can unfold with at least three distances d 1 , d 2 , and d 3 between two edges of squares.
  • the basic pattern 520 displays the elemental unit for the pattern.
  • a pattern can unfold with at least five distances d 1 , d 2 , d 3 , d 4 , and d 5 between two edges of squares.
  • the basic pattern 530 displays the elemental unit for the pattern.
  • the polymer resin coverage is not greater than about 400 g/m 2 , not greater than about 300 g/m 2 , not greater than about 200 g/m 2 , not greater than about 180 g/m 2 , not greater than about 150 g/m 2 , or not greater than about 120 g/m 2 .
  • an acoustic damping article can include a substrate, the substrate having a side, the side having a total surface area S t .
  • the acoustic damping article further includes a polymer resin, wherein the polymer resin partially coats the side in a set of n areas, S c1 , . . . , S cn , wherein n ⁇ 1 and a ratio of the sum of coated areas S c over the surface area S t is less than 1, wherein the acoustic damping article has a modal damping factor in the range between 50 to 850 Hz of at least about 10%.
  • the modal damping factor can be at least about 20%, at least about 30%, or at least about 40%.
  • the acoustic damping article can have a modal damping factor in the range between 700 to 1500 Hz of at least about 10%.
  • the modal damping factor can be at least about 20%, at least about 25%, at least about 30%, or at least about 40%.
  • the modal damping factor in the range between 1500 to 4000 Hz can be at least about 10%.
  • the modal damping factor can be at least about 20%, at least about 25%, at least about 30%, or at least about 40%.
  • the first shortest distance can be not greater than about 25 mm, not greater than about 23 mm, not greater than about 20 mm, not greater than about 18 mm, not greater than about 15 mm, not greater than about 13 mm, not greater than about 10 mm, not greater than about 8 mm, or not greater than about 5 mm.
  • a second shortest distance d 2 between edges of two coated areas can be not greater than about 40 mm, not greater than about 35 mm, not greater than about 30 mm, not greater than about 28 mm, not greater than about 25 mm, not greater than about 22 mm, not greater than about 20 mm, not greater than about 18 mm, or not greater than about 15 mm.
  • a third shortest distance d 3 between edges two coated areas can be not greater than about 45 mm, not greater than about 42 mm, not greater than about 40 mm, not greater than about 38 mm, not greater than about 35 mm, not greater than about 33 mm, not greater than about 30 mm, not greater than about 28 mm, or not greater than about 25 mm.
  • an acoustic damping article can include a substrate, the substrate having a side, the side having a total surface area S t , a polymer resin, the polymer resin having a shear modulus G′ at 1000 Hz and at room temperature and a thickness t, wherein the polymer resin partially coats the side in a set of n areas, S c1 , . . . , S cn , wherein n>1 and a percentage coverage p is the quotient of the sum of coated areas S c over the surface area S t is less than 1.
  • a Patterned Interlayer Stiffness (G′ ⁇ p)/t is at lea st about 0.7 GN/m 3 .
  • the Patterned Interlayer Stiffness (G′ ⁇ p)/t is at least about 1 GN/m 3 at least about 2 GN/m 3 , at least about 4 GN/m 3 , at least about 6 GN/m 3 , or at least about 8 GN/m 3 .
  • the (G′ ⁇ p)/t is not greater than about 20 GN/m 3 , not greater than
  • the coverage p can be at least about 0.1, such as at least about 0.2, such as at least about 0.3, at least about 0.4, at least about 0.5, at least about 0.6, at least about 0.7, at least about 0.8, or at least about 0.9.
  • p is not greater than about 0.95, such as not greater than about 0.9, not greater than about 0.85, not greater than about 0.8, not greater than about 0.75, not greater than about 0.7, not greater than about 0.65, not greater than about 0.6, not greater than about 0.55, not greater than about 0.5, not greater than about 0.45, or not greater than about 0.4.
  • the thickness t can be at least about 50 microns, such as at least about 75 microns, at least about 100 microns, at least about 150 microns, at least about 200 microns, at least about 250 microns, at least about 300 microns, at least about 350 microns, at least about 400 microns, at least about 450 microns, or at least about 500 microns.
  • the tickness t is not greater than about 5000 microns, such as not greater than about 4000 microns, not greater than about 2000 microns, not greater than about 1000 microns, not greater than about 800 microns, not greater than about 600 microns, not greater than about 500 microns, not greater than about 450 microns, not greater than about 400 microns, not greater than about 350 microns, or not greater than about 300 microns.
  • the polymer resin has a glass transition temperature not greater than about 40° C, not greater than about 35° C, not greater than about 30° C, or not greater than about 25° C.
  • the polymer resin has a shear modulus G′ of not greater than about 100 MPa at about 1000 Hz and at room temperature.
  • the shear modulus G′ can be not greater than about 80 MPa, such as not greater than about 70 MPa, not greater than about 60 MPa, not greater than about 50 MPa, or even not greater than about 40 MPa.
  • the shear modulus G′ is at least about 0.2 MPa, such as at least about 0.5 MPa, at least about 1 MPa, at least about 2 MPa, at least about 5 MPa, at least about 10 MPa, or at least about 20 MPa.
  • the polymer resin has an inherent damping loss factor of at least about 0.4 at about 1000 Hz and at room temperature.
  • the polymer resin has an inherent damping loss factor of at least about 0.5, at least about 0.6, at least about 0.7, at least about 0.8, at least about 0.8, or at least about 1, at about 1000 Hz and at room temperature.
  • the area of the set of coated areas can be in the shape of a rectangle, a square, a triangle, a pentagon, a hexagon, a circle, a circular section, a ring, a half ring, or any combination thereof.
  • the rectangle can be defined by sides a and b, wherein a proportion of length (a)/length (b) is greater than about 1, greater than about 2, greater than about 5, greater than about 10, greater than about 20, greater than about 50, greater than about 100, greater than about 500, greater than about 1000, or greater than about 5000.
  • the set of coated areas forms a pattern of stripes.
  • the pattern can be at least one of straight stripes, wavy stripes, zig-zag stripes, parallel stripes, or a combination thereof.
  • the ratio of the sum of coated areas S c over the total surface area S t can be not greater than about 0.8, not greater than about 0.6, not greater than about 0.5, not greater than about 0.4, not greater than about 0.3, not greater than about 0.25, not greater than about 0.2, or not greater than about 0.1.
  • the substrate can be selected from a wall panel, a ceiling panel, a dry wall, a tile, a subfloor panel, or a plastic sheet.
  • a second substrate can overlie the polymer resin.
  • the amount can be not greater than about 400 g/m 2 , not greater than about 300 g/m 2 , not greater than about 200 g/m 2 , not greater than about 180 g/m 2 , not greater than about 150 g/m 2 , or not greater than about 120 g/m 2 .
  • a method of preparing a construction panel includes coating a first major surface of a first rigid panel with a polymer resin in a set of areas, wherein a first shortest distance d 1 between edges of two coated areas is not greater than about 25 mm.
  • the first shortest distance is not greater than about 22 mm, not greater than about 20 mm, not greater than about 18 mm, or not greater than about 15 mm.
  • the coating can further include a second shortest distance d 2 between edges of two coated areas, wherein d 2 is not greater than about 35 mm, not greater than about 32 mm, not greater than about 30 mm, not greater than about 28 mm, or not greater than about 25 mm.
  • a method of preparing a construction panel includes coating a first major surface of a first rigid panel with a polymer resin in a set of areas, the polymer resin having a shear modulus G′ at 1000 Hz and at room temperature and a thickness t, wherein the polymer resin partially coats the surface in a set of n areas, S c1 , . . . , S cn , wherein n ⁇ 1 and a percentage coverage p is the quotient of the sum of coated areas S c over the surface area S t is less than 1.
  • the Patterned Interlayer Stiffness (G′ ⁇ p)/t is at least about 0.7 GN/m 3 .
  • the coating can include spraying, brushing, trowelling, plating, or stenciling.
  • the coating is conducted with a tool selected from a brush, a trowel, a roller, a spray gun, wherein the tool is adapted for coating the surface in the set of areas and not coating the surface other than the set of areas.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
US13/631,054 2011-09-30 2012-09-28 Optimized pattern of a damping layer for wall, floor, and ceiling constructions Abandoned US20130087409A1 (en)

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US13/631,054 US20130087409A1 (en) 2011-09-30 2012-09-28 Optimized pattern of a damping layer for wall, floor, and ceiling constructions
US14/688,719 US9580901B2 (en) 2011-09-30 2015-04-16 Optimized pattern of a damping layer for wall, floor, and ceiling constructions

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US201161542140P 2011-09-30 2011-09-30
US13/631,054 US20130087409A1 (en) 2011-09-30 2012-09-28 Optimized pattern of a damping layer for wall, floor, and ceiling constructions

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130186705A1 (en) * 2011-12-31 2013-07-25 Sylvain Payot Optimized pattern of a damping layer for wall, floor, and ceiling constructions
US20140050902A1 (en) * 2010-06-07 2014-02-20 Georgia-Pacific Gypsum Llc Acoustical sound proofing materials and methods of making the same
US9390700B1 (en) * 2015-03-10 2016-07-12 Awi Licensing Llc Laminate acoustic panel
US9512613B2 (en) 2015-02-05 2016-12-06 National Gympsum Properties, LLC Sound damping wallboard and method of forming a sound damping wallboard
US11124965B2 (en) 2017-09-26 2021-09-21 Certainteed Gypsum, Inc. Plaster boards having internal layers and methods for making them
US11559968B2 (en) 2018-12-06 2023-01-24 Gold Bond Building Products, Llc Sound damping gypsum board and method of constructing a sound damping gypsum board
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US12296553B2 (en) 2018-12-06 2025-05-13 Gold Bond Building Products, Llc Sound damping gypsum board and method of constructing a sound damping gypsum board
US12173499B1 (en) * 2018-12-22 2024-12-24 Kenneth James Rodger Acoustic interlayer
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US12296572B2 (en) 2020-06-05 2025-05-13 Gold Bond Building Products, Llc Sound damping gypsum board and method of constructing a sound damping gypsum board

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