CA2454972C - Sound suppressing flooring and method of manufacturing same - Google Patents

Sound suppressing flooring and method of manufacturing same Download PDF

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Publication number
CA2454972C
CA2454972C CA002454972A CA2454972A CA2454972C CA 2454972 C CA2454972 C CA 2454972C CA 002454972 A CA002454972 A CA 002454972A CA 2454972 A CA2454972 A CA 2454972A CA 2454972 C CA2454972 C CA 2454972C
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CA
Canada
Prior art keywords
wood
flooring
article
foam
foam material
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.)
Expired - Fee Related
Application number
CA002454972A
Other languages
French (fr)
Other versions
CA2454972A1 (en
Inventor
Mel Gallant
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.)
F C & F
Original Assignee
Mel Gallant
F C & F
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 Mel Gallant, F C & F filed Critical Mel Gallant
Publication of CA2454972A1 publication Critical patent/CA2454972A1/en
Application granted granted Critical
Publication of CA2454972C publication Critical patent/CA2454972C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181Insulating layers integrally formed with the flooring or the flooring elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • E04F15/206Layered panels for sound insulation
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
    • E04F2290/043Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a bottom layer for sound insulation

Abstract

A method of forming wood flooring. The flooring has foam applied to one side by adhesive. The adhesive is cured and a chemical bond forms between the wood and foam to provide a consolidated unit. This facilitates easier cutting of the consolidated product without dissociation of the foam from the wood. The result is an improved flooring product having sound suppression qualities.

Description

1 File No. 9-16066-4CA-1 SOUND SUPPRESSING FLOORING AND METHOD OF
MANUFACTURING SAME

The present invention relates to a flooring product and, more particularly, the present invention relates to a sound suppressing flooring arrangement.

Wood flooring is clearly attractive in a home and in most instances such flooring adds value to a house or other structure within which it is placed.

A characteristic of wood flooring is a lack of sound suppression. In view of the fact that the flooring is hard, acoustic transmission is very high. Attempts to circumvent this problem have been proposed in the art. One solution previously presented involved the use of underlayment. This proved to be useful; however the solution presented another complication, namely installation of the two materials.
Any form of underlay is difficult to position properly and this situation is compounded with the exactness required for hardwood flooring positioning.

Other efforts to formulate such products have developed into wood planks having rubber or foam attached to the floor facing side. The difficulty here is that the rubber often becomes disconnected from the wood during shipping thus leading to on the spot repairs or waste from having to discard the product.

It would be desirable to have a flooring product capable of retaining a sound insulation function together with a high degree of consolidation with an organic foam backing. The present invention addresses this need.
2 File No. 9-16264-1CA
One object of the present invention is to provide an improved method flooring wood product.

A further aspect of one embodiment of the present invention is to provide a sound transmission reducing flooring article, comprising, in combination:

a wood member having opposed major faces, sides and ends; and cross linked polyolefin foam material adhesively engaged to a major face of the major faces.
,10 In respect of the wood product, the same may comprise natural woods such as maple, ash, oak, cherry, walnut, pine, cedar and birch. Other woods are clearly possibilities as are the engineered products such as the laminated flooring products.

Advantageously, the flooring has been found to provide superior noise suppression and vibration damping and also provides significant impact resistance.

The sound and vibration characteristics benefit dance and stage floors and have further been found to be of particular use in recording studios.

As a further aspect of one embodiment of the present invention there is provided a sound transmission reducing flooring article, comprising, in combination:

a wood member having opposed major faces, sides and ends;

a textured, cross linked polyolefin foam material adhesively engaged with an ultraviolet
3 File No. 9-16264-1CA
curable adhesive to a major face of said major faces to form a chemical bond therewith; and a plurality of spaced apart air cells between said major face of said wood member and said cross linked polyolefin foam material adhesively engaged to said major face which includes the air cells.

The provision of a texture allows for a random or alternating pattern of adhesive surrounding closed air cells. The cell of air is effectively encased by a cured adhesive, the foam and the wood panel major face. This results in a lighter flooring panel or other such panel which can be used in different constructions and further provides a high degree of insulation with an increased R
value over existing arrangements. In terms of the texturing, the same can take any suitable shape and may exist in any pattern, i.e. a regular pattern with a textured section followed by a non-textured and subsequently with a textured section or any variation on this or further, even any random pattern. This will depend on the final use of the product.

Yet another aspect of one embodiment of the presentation is to provide a method of forming a wood flooring member, comprising:

providing a source of wood suitable for use as flooring;

applying an adhesive material to one side of the flooring to effect chemical fusion between the flooring and the foam, and
4 File No. 9-16264-1CA
cutting the wood having said foam consolidated there with into segments for flooring.

Suitable adhesives include MapeiTM #965.

In view of the fact that the flooring product is mold, mildew and moisture resistant, no vapor barrier is required.

In respect of the foam, examples which have provided the desired combination of factors include polyamide foam, polyethylene/polypropylene blends, such as that manufactured by Toray Plastics (America), Inc., and Voltek, a division of Sekisui America Corp. Other suitable examples of closed cell polyolefin foams will be appreciated by those skilled in the art.

Having thus generally described the invention, reference will now be made accompanying drawings, illustrating preferred embodiments and in which:

Figure 1 is a schematic illustration of the overall process according to one embodiment;

Figure 2 is a perspective view of one embodiment of a plank;

Figure 3 is an enlarged section of Figure 2;

Figure 4 is a perspective view of a further embodiment of the invention;

Figure 5 is yet another embodiment of the invention in perspective view;

Figure 6 is an enlarged section view of Figure 5; and File No. 9-16264-1CA
Figure 7 is a schematic illustration of the overall process according to a further embodiment.

It will be noted that throughout the appended drawings, like features are identified by like reference
5 numerals.

The process to effect the formation of the plank is illustrated in Figure 1. Numeral 10 references a material supply, in this case wood flooring, to be exposed on one side to adhesive at 12. Once the adhesive has been applied, the material is passed to a foam application stage where foam 14 is applied to the adhesive surface to chemically fuse with the foam. Preferably, the adhesive is an ultraviolet curable adhesive for effecting fusion. The product is subsequently cut at 16 into a desired shape. In this case that shape is planks for use as flooring. For enhanced consolidation, the cut material may be pressurized at 17 by roller nibs (not shown) or other suitable means such as gas pressurization or vacuum. This operation has the benefit of ensuring that the maximum degree of contact is attained between the wood and foam material by forcing any trapped gas out of the interface between the materials.
As an optional step, the cut planks may be heat treated at the edges, globally indicated at 18 in order to melt or otherwise thermally degrade the material. This has the advantage of toughening the material to prevent disengagement from the wood plank, referenced by numeral 20 in Figure 2.

Having set forth the details of the invention in one embodiment, reference will be made to the table below
6 File No. 9-16264-1CA
indicating data evincing the effectiveness of the product and methodology.

Comparative Sound Test Data Material IIC INCREASE STC
Six inch concrete floor only laminate and six 46.2 48 inch concrete floor concrete floor and 53.7 7.5 48 WilsonartTM foam concrete floor and 53.3 7.1 48 Mannington ComfortBarrierTM
#6002 Product 1.5mm 53.6 7.4 49 foam The testing standard employed was ASTM E IS STC and ASTM E 492 IS IIC. The basic flooring was Armstrong SwiftlockTM laminate in the absence of a suspended ceiling.

Product refers to the article of the present invention.

STC refers to sound transmission coefficient.
IIC refers to impact insulation class.
7 File No. 9-16264-1CA
Referring now to Figure 4, shown as a further embodiment of the present invention where the foam material 14 includes a texture 22, shown in Figure 4 as short line segments and in Figure 5 as a circular or spherical pattern. It has been found that by providing a texture, adhesive material effectively alternates with the texture as shown in Figure 6. This, accordingly, provides sections of individual air pockets or cells 26 dispersed amongst the adhesive and foam material. Advantages have been realized in terms of enhancing the surface area for bonding to the flooring material with a concomitant reduction in the amount of adhesive required while providing enhanced surface area. Further, by making use of the air pockets, a greater degree of insulation can be realized with the laminate wood flooring. This is particularly advantageous in situations where the laminate is used on radiantly heated flooring. In the absence of the air cell design according to this embodiment of the present invention, passive radiantly heated flooring does not provide for adequate heat efficiency.

In terms of the manufacturing, Figure 7 illustrates an example of a process that could be used to manufacture the material where the process is very similar to that previously discussed. In this instance, a further unit operation, globally denoted by numeral 26 may be included where the operation is directed to texturing the foam material. As a further option this step may be eliminated from the process and the texture imparted to the foam at 17 by providing textured nib rollers.
8 File No. 9-16264-1CA
As is conclusive from the data, the product according to the present invention yielded excellent results in terms of impact insulation and sound transmission.

Although embodiments of the invention have been described above, it is not limited thereto and it will be apparent to those skilled in the art that numerous modifications form part of the present invention insofar as they do not depart from the spirit, nature and scope of the claimed and described invention.

Claims (18)

Claims
1. A sound transmission-reducing flooring article, comprising, in combination:
a wood member having opposed major faces, sides and ends; and cross-linked closed cell polyolefin foam material adhesively engaged to a major face of said major faces and said foam material being positioned over the entire area of said major face and extending between said sides and ends; and wherein said foam material at said sides and ends consolidated therewith by heat treatment.
2. An article as claimed in claim 1, wherein said wood member comprises an engineered wood product.
3. An article as claimed in claim 2, wherein said engineered wood product comprises a laminated wood flooring product.
4. An article as claimed in any one of claims 1 to 3 wherein said polyolefin foam has a width dimension comprising between 1% and 25% of the thickness of said wood member.
5. An article as claimed in any one of claims 1 to 4 wherein said wood member comprises planking selected from the group consisting of maple, ash, oak, cherry, walnut, pine, cedar and birch.
6. An article as claimed in any one of claims 1 to 5 wherein said foam is adhesively engaged with a curable adhesive.
7. An article as claimed in claim 6 wherein said adhesive comprises an ultraviolet curable adhesive.
8. An article as claimed in any one of claims 1 to 7 wherein said cross-linked close cell polyolefin foam material has a textured surface.
9. An article as claimed in claim 6 wherein said adhesive forms a chemical bond with said foam to integrate said foam with said wood member.
10. An article as claimed in any one of claims 1 to 9 wherein said flooring article includes a plurality of spaced apart air cells.
11. A sound transmission-reducing flooring article, comprising, in combination:
a wood member having opposed major faces, sides and ends;
a textured, cross-linked closed cell polyolefin foam material adhesively engaged to a major face of said major faces; and said foam material being positioned over the entire area of said major face and extending between said sides and ends;

and wherein said foam material at said sides and ends consolidated therewith by heat treatment; and a plurality of spaced apart air cells between said major face of said wood member and said cross linked polyolefin foam material adhesively engaged to said major face.
12. An article as claimed in claim 11, wherein said wood member comprises an engineered wood product.
13. An article as claimed in claim 12, wherein said engineered wood product comprises a laminated wood floor product.
14. A method of forming a wood flooring member, comprising:
providing a source of wood suitable for use as flooring:
providing a cross-linked closed cell foam material for fixation to said wood;
applying an adhesive material to one side of the flooring to effect chemical fusion between said flooring and said foam; and wherein said foam being positioned over the entire area of said major face and extending between said sides and ends; and cutting said wood having said foam consolidated there with into segments for flooring.
15. A method as claimed in claim 14, further including the step of pressurizing said segments to remove gas trapped between said foam and said wood.
16. A method as claimed in claim 14 or claim 15, further including the step of heat treating edges of said segments for sealing said edges.
17. A method as claimed in any one of claims 14 to 16, further including the step of heat treating cut segments.
18. A method as claimed in any one of claims 14 to 17, further including the step of texturing said foam material prior to fixation of said wood.
CA002454972A 2003-01-09 2004-01-08 Sound suppressing flooring and method of manufacturing same Expired - Fee Related CA2454972C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43878903P 2003-01-09 2003-01-09
US60/438,789 2003-01-09

Publications (2)

Publication Number Publication Date
CA2454972A1 CA2454972A1 (en) 2004-07-09
CA2454972C true CA2454972C (en) 2007-05-22

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CA002454972A Expired - Fee Related CA2454972C (en) 2003-01-09 2004-01-08 Sound suppressing flooring and method of manufacturing same

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CA (1) CA2454972C (en)

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US20050069694A1 (en) 2003-09-26 2005-03-31 Gilder Stephen D. Anti-microbial carpet underlay and method of making
WO2006015145A2 (en) * 2004-07-29 2006-02-09 Rsa Security Inc. Methods and apparatus for rfid device authentication
FR2885626A1 (en) * 2005-05-10 2006-11-17 Espace Production Internationa Strip/slab fabricating method for flooring, involves pasting entire or part of side of support panel, applying decorative sheet by calandering on side, and arranging safety block for delivering panel in strips and/or slabs of flooring
EP1896271A2 (en) * 2005-05-10 2008-03-12 Espace Production International EPI (Société Anonyme) Floor covering strips or slabs, production method thereof and production facility used for same
US20100065368A1 (en) * 2008-09-15 2010-03-18 Vatche Tazian Lightweight, flexible, moldable acoustic barrier and composites including the same
EP2366543A1 (en) * 2010-03-19 2011-09-21 Spanolux N.V. - Div. Balterio A method of manufacturing a floor panel and a floor panel
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CA2982731C (en) * 2017-10-17 2018-07-17 9236-3135 Qc Inc. Vibration absorption device and method for acoustic insulation
CN110039801B (en) * 2019-04-26 2020-12-29 福建农林大学 Processing method of bubble decoration panel

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Publication number Publication date
CA2454972A1 (en) 2004-07-09
US20040140151A1 (en) 2004-07-22

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