EP1819889A1 - Composition for sound insulating sheet material with gelatine, glycerine and other materials - Google Patents

Composition for sound insulating sheet material with gelatine, glycerine and other materials

Info

Publication number
EP1819889A1
EP1819889A1 EP05804576A EP05804576A EP1819889A1 EP 1819889 A1 EP1819889 A1 EP 1819889A1 EP 05804576 A EP05804576 A EP 05804576A EP 05804576 A EP05804576 A EP 05804576A EP 1819889 A1 EP1819889 A1 EP 1819889A1
Authority
EP
European Patent Office
Prior art keywords
composition
sheet material
sheet
glycerine
gelatine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05804576A
Other languages
German (de)
French (fr)
Other versions
EP1819889A4 (en
Inventor
Bela Acoustica Pty Ltd TAKACS
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.)
Individual
Original Assignee
Individual
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
Priority claimed from AU2004906645A external-priority patent/AU2004906645A0/en
Application filed by Individual filed Critical Individual
Publication of EP1819889A1 publication Critical patent/EP1819889A1/en
Publication of EP1819889A4 publication Critical patent/EP1819889A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • E04B1/8409—Sound-absorbing elements sheet-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0041—Anti-odorant agents, e.g. active carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0044—Stabilisers, e.g. against oxydation, light or heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0001—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties
    • B29K2995/0002—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties insulating

Definitions

  • the present invention relates to a composition suitable for producing sheet material with sound dampening properties, and in particular to a composition that is also friendly to the environment.
  • the present invention also relates to a process for producing sheet material from the composition.
  • Sound dampening properties are found in materials with a high sound transmission loss.
  • the sound transmission loss of a material is determined by various physical factors such as mass and stiffness.
  • the mass per unit area of a material is the most important factor in controlling the transmission of sound through the material.
  • the so-called mass law is worth repeating here, as it applies to most materials at most frequencies:
  • TL transmission loss (dB)
  • m s mass per unit area (kg/m 2 )
  • f frequency of the sound (Hz)
  • Stiffness of the material is another factor that influences TL. Stiffer materials exhibit "coincidence dips" which are not explained by the above mass law.
  • the coincidence or critical frequency is shown by:
  • A is a constant for a material t is the thickness of the material (mm)
  • compositions that are commonly used to produce sheet material with sound dampening properties are what is termed a loaded vinyl.
  • a material with a high density is combined with vinyl at formulation stage.
  • the resulting product has a high density whilst still maintaining high flexibility and thereby providing sound dampening properties.
  • vinyl is a product derived from petroleum sources so its cost and production is directly linked to the oil price and dictated by oil supply. Furthermore, vinyl does not biodegrade easily and in addition produces toxic fumes when burnt. This poses a particular problem when a loaded vinyl is used as a building material for its sound dampening properties.
  • the present invention provides a composition for producing sheet material with sound dampening properties wherein the composition includes water, gelatine, glycerine and a filler material.
  • the composition includes: 5 - 40 wt% water 5 - 30 wt% gelatine 5 - 40 wt% glycerine; and
  • the composition also includes 1 to 15 wt% of a group II metal chloride such as for example calcium chloride or magnesium chloride. More preferably, the composition includes 2 to 10 wt% magnesium chloride. Preferably, the composition further includes 0.5 to 7 wt% starch or gluten. Preferably the starch is provided from the addition of cornflour to the composition.
  • a group II metal chloride such as for example calcium chloride or magnesium chloride. More preferably, the composition includes 2 to 10 wt% magnesium chloride.
  • the composition further includes 0.5 to 7 wt% starch or gluten.
  • starch is provided from the addition of cornflour to the composition.
  • the filler material is a non-reactive material with a high density.
  • the density is greater than 1 g/cm 3 , and more preferably the density of the filler material is approximately 2.0 to 3.0 g/cm 3 .
  • the filler material may be chosen from any non-reactive material with a high density such as for example barium sulphate or KAOLIN.
  • the composition includes: 10 - 25 wt% water
  • composition may further include constituents such as for example ethylene and/or propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and/or fungicides.
  • constituents such as for example ethylene and/or propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and/or fungicides.
  • the present invention provides a sheet material with sound dampening properties wherein the sheet material is prepared from a composition including:
  • the composition also includes 1 to 15 wt% of a group II metal chloride such as for example calcium chloride or magnesium chloride. More preferably, the composition includes 2 to 10 wt% magnesium chloride.
  • a group II metal chloride such as for example calcium chloride or magnesium chloride. More preferably, the composition includes 2 to 10 wt% magnesium chloride.
  • the composition further includes 0.5 to 7 wt% starch or gluten.
  • starch is provided from the addition of cornflour to the composition.
  • the sheet material is produced in the form of a sheet of between 1 and 8 mm in thickness.
  • the sheet material is 1.7mm in thickness up to 6 mm.
  • the sheet material may be bonded on either or both planar surfaces to any suitable material to provide a composite layered material. Suitable materials may be aluminium film, plasterboard, timber, steel (colourbond roofing), fibre-cement sheeting, non-woven polyester, acoustic foam or any other natural fibre matting.
  • the sheet material may be affixed to other suitable materials by adhesive or during curing process at manufacturing stage.
  • the sheet material may be of any suitable density, preferably within a range of 1 g/cm 3 to 3 g/cm .
  • the sheet material is incorporated into a wall structure utilising, for example, staggered studs and a cavity filled with polyester batts or suitable sound absorptive material.
  • the sheet material maybe incorporated into said wall structure by sandwiching the sheet material between two plasterboard sheets.
  • the present invention provides a process for producing a sheet material with sound dampening properties including the steps of
  • the gel may be extruded onto an aluminium foil sheet or another suitable material whereby, once the sheet cures in step (vi), a composite sheet material is produced.
  • the composition according to the present invention may be used to provide an acoustic sheeting material that has significant sound dampening characteristics.
  • the sheeting material once formed has a density at least greater than 1 g/cm 3 and preferably a density of about 2.5 g/cm 3 .
  • the sheeting material is very flexible with a high elastic memory, thus providing excellent sound dampening properties.
  • the composition of the present invention is made from non-petroleum based products, the acoustic sheeting material produced from the composition is biodegradable and non toxic. Furthermore, the cost of the sheeting material is independent from the oil price and oil supply.
  • composition is fire retardant and does not give off toxic fumes when burnt in contrast to the alternative product of loaded vinyl. This provides that the material may be used extensively in building materials to provide a safer and greener alternative to loaded vinyl.
  • the composition of the present invention may also be coloured by any suitable techniques, to produce sheeting in any colour that may be desired. Furthermore, the composition has excellent adhesion properties and does therefore not require gluing at the formation stage if bonded to a suitable substrate. Alternatively, once the sheeting material has cured, the material is also compatible with most glues and adhesives such that a composite material may be produced at that stage.
  • the present invention will become better understood from the following example of a preferred but non-limiting embodiment thereof.
  • composition 100 g of water together with 100 g of glycerine and 10 g of starch was mixed and then heated to a temperature of 85 °C. 80 g of gelatine and 20 g of magnesium chloride was then dissolved into the mixture and a gel was formed. 31O g of barium sulphate was then added to the gel providing a composition with good flexibility, elasticity, tensile strength, and density with good film forming properties.
  • the composition had the following composition by weight:
  • composition was then extruded into a flat sheet and bonded onto an aluminium film and then brought down to room temperature whereby the composition cured to form a sheet of composite material of 4mm in thickness that showed excellent sound dampening properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

A composition for producing sheet material with sound dampening properties wherein the composition includes water, gelatine, glycerine and a filler material.

Description

COMPOSITION FOR SOUND INSULATING SHEET MATERIAL WITH GELATINE, GLYCERINE AND OTHER MATERIAL
The present invention relates to a composition suitable for producing sheet material with sound dampening properties, and in particular to a composition that is also friendly to the environment. The present invention also relates to a process for producing sheet material from the composition.
Background to the invention
Sound dampening properties are found in materials with a high sound transmission loss. The sound transmission loss of a material is determined by various physical factors such as mass and stiffness. The mass per unit area of a material is the most important factor in controlling the transmission of sound through the material. The so-called mass law is worth repeating here, as it applies to most materials at most frequencies:
TL = 20 1og10 (msf) - 48.
where: TL = transmission loss (dB) ms = mass per unit area (kg/m2) f = frequency of the sound (Hz)
Stiffness of the material is another factor that influences TL. Stiffer materials exhibit "coincidence dips" which are not explained by the above mass law. The coincidence or critical frequency is shown by:
fc = A/t
where: A is a constant for a material t is the thickness of the material (mm)
An example of a composition that is commonly used to produce sheet material with sound dampening properties is what is termed a loaded vinyl. In such a composition, a material with a high density is combined with vinyl at formulation stage. The resulting product has a high density whilst still maintaining high flexibility and thereby providing sound dampening properties.
However, vinyl is a product derived from petroleum sources so its cost and production is directly linked to the oil price and dictated by oil supply. Furthermore, vinyl does not biodegrade easily and in addition produces toxic fumes when burnt. This poses a particular problem when a loaded vinyl is used as a building material for its sound dampening properties.
Accordingly, there is a need for an alternative material that may be used to produce sheet material with sound dampening properties and which overcomes the disadvantages of loaded vinyl.
Summary of the invention
According to one aspect the present invention provides a composition for producing sheet material with sound dampening properties wherein the composition includes water, gelatine, glycerine and a filler material.
Preferably, the composition includes: 5 - 40 wt% water 5 - 30 wt% gelatine 5 - 40 wt% glycerine; and
20 - 60 wt% filler material
Preferably, the composition also includes 1 to 15 wt% of a group II metal chloride such as for example calcium chloride or magnesium chloride. More preferably, the composition includes 2 to 10 wt% magnesium chloride. Preferably, the composition further includes 0.5 to 7 wt% starch or gluten. Preferably the starch is provided from the addition of cornflour to the composition.
Preferably, the filler material is a non-reactive material with a high density. Preferably the density is greater than 1 g/cm3, and more preferably the density of the filler material is approximately 2.0 to 3.0 g/cm3. The filler material may be chosen from any non-reactive material with a high density such as for example barium sulphate or KAOLIN.
Preferably the composition includes: 10 - 25 wt% water
5 - 20 wt% gelatine
10 - 25 wt% glycerine;
40 - 60 wt% filler material;
1 - 10 wt% magnesium chloride; and 0.5 - 3 wt% starch;
The composition may further include constituents such as for example ethylene and/or propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and/or fungicides.
According to another aspect the present invention provides a sheet material with sound dampening properties wherein the sheet material is prepared from a composition including:
5 - 40 wt% water
5 - 30 wt% gelatine
5 - 40 wt% glycerine; and 20 - 60 wt% filler material.
Preferably, the composition also includes 1 to 15 wt% of a group II metal chloride such as for example calcium chloride or magnesium chloride. More preferably, the composition includes 2 to 10 wt% magnesium chloride.
Preferably, the composition further includes 0.5 to 7 wt% starch or gluten. Preferably the starch is provided from the addition of cornflour to the composition.
Preferably the sheet material is produced in the form of a sheet of between 1 and 8 mm in thickness. Preferably the sheet material is 1.7mm in thickness up to 6 mm. The sheet material may be bonded on either or both planar surfaces to any suitable material to provide a composite layered material. Suitable materials may be aluminium film, plasterboard, timber, steel (colourbond roofing), fibre-cement sheeting, non-woven polyester, acoustic foam or any other natural fibre matting.
The sheet material may be affixed to other suitable materials by adhesive or during curing process at manufacturing stage.
The sheet material may be of any suitable density, preferably within a range of 1 g/cm3 to 3 g/cm .
Preferably the sheet material is incorporated into a wall structure utilising, for example, staggered studs and a cavity filled with polyester batts or suitable sound absorptive material. The sheet material maybe incorporated into said wall structure by sandwiching the sheet material between two plasterboard sheets.
According to a further aspect the present invention provides a process for producing a sheet material with sound dampening properties including the steps of
(i) combining water, glycerine and cornflour and heating the resulting mixture to 80 - 900C until a gel forms; (ii) dissolving gelatine into the gel;
(iii) adding magnesium chloride to the gel;
(iv) mixing in the filler material to achieve a uniform composition; (v) extruding the resulting gel into a flat sheet of desired thickness; and (vi) cooling the sheet to room temperature whereby the sheet material cures. According to one embodiment at step (v) of the process, the gel may be extruded onto an aluminium foil sheet or another suitable material whereby, once the sheet cures in step (vi), a composite sheet material is produced.
Detailed Description of the Invention
The composition according to the present invention may be used to provide an acoustic sheeting material that has significant sound dampening characteristics. The sheeting material once formed has a density at least greater than 1 g/cm3 and preferably a density of about 2.5 g/cm3. In addition to the high density, the sheeting material is very flexible with a high elastic memory, thus providing excellent sound dampening properties.
As the composition of the present invention is made from non-petroleum based products, the acoustic sheeting material produced from the composition is biodegradable and non toxic. Furthermore, the cost of the sheeting material is independent from the oil price and oil supply.
Another advantage of the composition is that it is fire retardant and does not give off toxic fumes when burnt in contrast to the alternative product of loaded vinyl. This provides that the material may be used extensively in building materials to provide a safer and greener alternative to loaded vinyl.
During the process to produce the acoustic sheeting, the composition of the present invention may also be coloured by any suitable techniques, to produce sheeting in any colour that may be desired. Furthermore, the composition has excellent adhesion properties and does therefore not require gluing at the formation stage if bonded to a suitable substrate. Alternatively, once the sheeting material has cured, the material is also compatible with most glues and adhesives such that a composite material may be produced at that stage. The present invention will become better understood from the following example of a preferred but non-limiting embodiment thereof.
Example
100 g of water together with 100 g of glycerine and 10 g of starch was mixed and then heated to a temperature of 85 °C. 80 g of gelatine and 20 g of magnesium chloride was then dissolved into the mixture and a gel was formed. 31O g of barium sulphate was then added to the gel providing a composition with good flexibility, elasticity, tensile strength, and density with good film forming properties. The composition had the following composition by weight:
16% water; 16% glycerine; 1.5% starch;
13% gelatine;
3.5% magnesium chloride; and 50% barium sulphate.
The composition was then extruded into a flat sheet and bonded onto an aluminium film and then brought down to room temperature whereby the composition cured to form a sheet of composite material of 4mm in thickness that showed excellent sound dampening properties.
Although several embodiments have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein by one ordinarily skilled in the art without departing from the spirit or scope of the present invention.

Claims

The Claims
1. A composition for producing sheet material with sound dampening properties wherein the composition includes water, gelatine, glycerine and a filler material.
2. A composition according to claim 1 wherein the composition includes:
5 - 40 wt% water 5 - 30 wt% gelatine 5 - 40 wt% glycerine; and 20 - 60 wt% filler material.
3. A composition according to claim 1 or claim 2 wherein the composition further includes 1 to 15 wt% of a group II metal chloride.
4. A composition according to claim 3 wherein the group II metal chloride is chosen from calcium chloride or magnesium chloride.
5. A composition according to claim 3 or claim 4 wherein the composition includes 2 to 10 wt% magnesium chloride.
6. A composition according to any one of claims 1 to 5 wherein the composition further includes 0.5 to 7 wt% starch or gluten.
7. A composition according to claim 6 wherein the starch is provided from the addition of cornflour to the composition.
8. A composition according to any one of claims 1 to 7 wherein the filler material is a non-reactive material with a high density.
9. A composition according to claim 8 wherein the density of the filler material is greater than 1 g/cm .
10. A composition according to claim 8 wherein the density of the filler material is approximately 2.0 to 3.0 g/cm3.
11. A composition according to any one of claims 1 to 10 wherein the filler material is a non-reactive material with a high density.
12. A composition according to any one of claims 1 to 11 wherein the filler material is either barium sulphate or KAOLIN.
13. A composition for producing sheet material with sound dampening properties wherein the composition includes:
10 - 25 wt% water 5 - 20 wt% gelatine 10 - 25 wt% glycerine;
40 - 60 wt% filler material;
1 - 10 wt% magnesium chloride; and
0.5 - 3 wt% starch.
14. A composition according to any one of the proceeding claims wherein the composition further includes: ethylene and/or propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and/or fungicides.
15. A sheet material with sound dampening properties wherein the sheet material is prepared from a composition including:
5 - 40 wt% water 5 - 30 wt% gelatine 5 - 40 wt% glycerine; and 20 - 60 wt% filler material.
16. A sheet material according to claim 15 wherein the composition includes 1 to 15 wt% of a group II metal chloride.
17. A sheet material according to claim 16 wherein the group II metal chloride is chosen from calcium chloride or magnesium chloride.
18. A sheet material according to claim 16 wherein the composition includes 2 to 10 wt% magnesium chloride.
19. A sheet material according to any one of claims 15 to 18 wherein the composition further includes 0.5 to 7 wt% starch or gluten.
20. A sheet material according to claim 19 wherein the starch is provided by the addition of cornflour to the composition.
21. A sheet material according to any one of claims 15 to 20 wherein the sheet material is between 1 and 8 mm in thickness.
22. A sheet material according to any one of claims 15 to 21 wherein the density of the sheet material is from 1 g/cm3 to 3 g/cm3.
23. A sheet material according to any one of claims 15 to 22 wherein the sheet material is incorporated into a wall structure.
24. A composite layered sheet material including a sheet material according to any one of claims 15 to 22 and another material bonded on either one or both planar surfaces of the sheet material.
25. A composite layered sheet material according to claim 24 wherein the other material is chosen from one or any combination of aluminium film, plasterboard, timber, steel (colourbond roofing), fibre-cement sheeting, non-woven polyester, acoustic foam or any other natural fibre matting.
26. A composite layered sheet material according to claim 24 or claim 25 wherein the sheet material is affixed to the other suitable material(s) by adhesive or during a curing process at manufacturing stage.
27. A composite layered sheet material according to any one of claims 24 to 26 wherein the composite material is incorporated into a wall structure.
28. A process for producing a sheet material with sound dampening properties including the steps of
(i) combining water, glycerine and cornflour and heating the resulting mixture to 80 - 900C until a gel forms; (ii) dissolving gelatine into the gel; (iii) adding magnesium chloride to the gel; (iv) mixing in'the filler material to achieve a uniform composition;
(v) extruding the resulting gel into a flat sheet of desired thickness; and (vi) cooling the sheet to room temperature whereby the sheet material cures.
29. A process according to claim 28 wherein at step (v) the gel is extruded onto an aluminium foil sheet, or another suitable material, whereby upon the sheet curing in step (vi), a composite layered sheet material is produced.
EP05804576A 2004-11-22 2005-11-18 Composition for sound insulating sheet material with gelatine, glycerine and other materials Withdrawn EP1819889A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004906645A AU2004906645A0 (en) 2004-11-22 A composition for producing sheet material
PCT/AU2005/001758 WO2006053393A1 (en) 2004-11-22 2005-11-18 Composition for sound insulating sheet material with gelatine, glycerine and other materials

Publications (2)

Publication Number Publication Date
EP1819889A1 true EP1819889A1 (en) 2007-08-22
EP1819889A4 EP1819889A4 (en) 2011-02-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05804576A Withdrawn EP1819889A4 (en) 2004-11-22 2005-11-18 Composition for sound insulating sheet material with gelatine, glycerine and other materials

Country Status (4)

Country Link
US (1) US20080203350A1 (en)
EP (1) EP1819889A4 (en)
CN (1) CN101124372B (en)
WO (1) WO2006053393A1 (en)

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CN103980550B (en) * 2012-11-13 2015-12-30 新昌县东茗乡宝昱机械厂 A kind of Composite thermal expansion material
AU2014101211B4 (en) * 2013-05-09 2015-01-29 Acoustic Space Pty Ltd A sound insulating sheet material with a cellular structure including gelatine and/or a process for producing the same
NZ630937A (en) 2013-05-09 2017-12-22 Acoustic Space Pty Ltd A sound insulating sheet material with a cellular structure including gelatine and/or a process for producing the same
CN103289428A (en) * 2013-07-03 2013-09-11 内蒙古大学 Preparation method of kaolin and waste plant fiber composite board

Citations (3)

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CN101124372A (en) 2008-02-13
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CN101124372B (en) 2012-01-18
US20080203350A1 (en) 2008-08-28

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