CA2011521A1 - Sprayable coating substances for noise-suppression - Google Patents
Sprayable coating substances for noise-suppressionInfo
- Publication number
- CA2011521A1 CA2011521A1 CA002011521A CA2011521A CA2011521A1 CA 2011521 A1 CA2011521 A1 CA 2011521A1 CA 002011521 A CA002011521 A CA 002011521A CA 2011521 A CA2011521 A CA 2011521A CA 2011521 A1 CA2011521 A1 CA 2011521A1
- Authority
- CA
- Canada
- Prior art keywords
- weight
- coating compound
- compound according
- solids content
- fillers
- 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.)
- Abandoned
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Abstract A sprayable coating composition for noise-suppression is described which comprises not more than 30 % by weight of aqueous synthetic resin dispersion, a mixture of a flame-inhibiting filler of the hydrargillite type and an acoustically effective filler, fibers, of which at least some are water-dispersible inorganic fibers, water and optionally the usual additives, such that the filler mixture has an optimized packing density. The coating composition obtained are low in binding agents, not easily inflammable, friendly to the environment, and have improved acoustic properties as well as a reduced tendency to form cracks during the drying process.
Description
~ 0 ~ 2 ~
Teroson GmbH (25926/UGS/gro/wo) Hans-Bunte-Str. 4 6900 Heidelberg 1 March 1990 SpraYable coatinq comPositions for noise-suDPres~ion The invention relates to a sprayable coating compound for noise- suppression on the basis of an aqueous synthetic resin dispersion, fillers and fibers.
Very thin metal sheets are used almost exclusively today in the production of vehicles, machines and appliances. These thin sheets are unavoidably set into vibration by mechanically moving parts or running motors and as a consequence radiate noise. In order to reduce this noise radiation, these sheets are provided, particularly in car manufacture and in the production of household appliances, with noise-suppressing coatings, so-called anti-noise coatings.
Noise-suppressing coatings are known which are based on aqueous or solvent-containing synthetic resin or bitumen dispersions. Fillers and/or fibers are added to these coatings to reduce combustibility and to improve retention on vertical walls and/or to improve noise-suppressing properties. The coating composition previously used are ... . . . . .
,. , .,:, ~ ~ :. . , : . . , ~- ; ;j. . . . . .
, ~ ,- ; . :
, . . .
~, ` ~ 28~
either systems which are relatively high in binding agents, which only have a slight tQndency towards crac~ formation in the drying process but which are easily inflammable, or systems relatively low in binding agents, which exhibit a better combustion behavior but which tend to show a high degree of crack formation.
It is important to make available coating composition for noise absorption which despite their low binding agent content are not easily inflammable, especially in view of growing environmental concern and higher fire-safety requirements which are of increasing significance particularly for new technical developments, e.g. for high speed train6. Moreover, it should be possible to apply such coating composition in a simple manner, e.g. by means of the spray process, for the latter to have improved noise-suppression properties and be essentially free of solvents, halogens, heavy metals and asbestos.
The basic ob~ect of the invention is to make available such coating compo3ition.
, This is surprisingly achieved by the sprayable coating compound according to the main claim. The sub-claims relate to preferred embodiments of the invention.
The sprayable coating compound for noise-suppression according to the invention contains not more than 30 % by - . . . .
-`' . t w~ight, preferably 10 to 15 % by weight, of an aqueous synthetic resin dispersion or a mi~ture of different synthetic resin dispersions and is therefore low in binding agents. Suitable synthetic resins are generally homopolymers, copolymers and/or hydrocarbon resins with glass transition temperatures below room temperature, which are able to form adhesive films and aqueous, solvent-free dispersions which are stable even with high filler contents.
Aqueous synthetic resin dispersions are preferably used which are based on e.g. polyvinylacetate, ethylene-vinylacetate, styrene-butadiene, styrene-butadiene-styrene or styrene-isoprene-styrene polymers, polyurethane and/or acrylic acid ester copolymer and particularly preferred are resin dispersions based on acrylic acid ester coppolymers.
The solids content of the coating compound is not less than 50 % by weight and preferably 60 to 70 % by weight.
The total content of organic constituents in the coating compound according to the invention is not more than 25 %
by weight and preferably 10 to 15 % by weight, based on the solid~ content.
The coating composition also contains as a flame-inhibiting filler inorganic compounds or minerals wich are essentially free of heavy metals and halogen and which are able to : . .
' :' ., : .
,: , .
. . .
dehydrate at elevated temperatures, in an amount of not less than 10 ~ by weight and preferably 25 to 35 % by weight, based on the solids content. Preferred ~xamples for such compounds or minerals are magnesium hydroxide, magnesium sulfate heptahydrate, alums and/or hydrargillite with hydrargillite being especially preferred. The coating compound which is given flame-inhibiting properties in this way is free of halogen and heavy metals, this contributes considerably to its excellent environment-friendly nature.
The content of acoustically effective fillers is not less than 20 % by weight and preferably 40 to 60 ~ by weight, based on the solids content. Preferred examples of the acoustically effective filler~ which can be used are mica, powdered slate, montmorillonite flakes, glass flakes, metal flakes, graphite, talcum and/or clay minerals, with mica being e~pecially preferred. `-It i8 an esRential characteristic of the coating compound according to the invention that the mixture consisting of the flame-inhibiting filler(s) and the acoustically effective filler(s) has a size-distribution curve as a result of plotting the proportion D of the filler mixture passing through the screen in percentage by weight on the ordinate against the grain diameter d of the particles of the filler mixture in millimeters on the abscissa, which essentially obeys the equation ,, -~
... . ., .. , . : ... . ... . . ...... . .
.. . . . ~ ... .
.... ...
:
L
d D ; _____ d~
in which D represents the screen through-flow in % by weight, d represents the grain diameter in millimeters and d3~ represents the maximum grain diameter in millimeters.
The curve corresponding to the above equation is described as the ~Fuller Curve" and indicates the grain-size distribution necessary for obtaining the tightest packing of the granulation. The cavities in the filler mixture are reduced to a minimum due to this optimized grain-size distribution.
Surprisingly, despite the fact that the different grain shapes of th~ fillers used are not taken into consideration, a coating compound with a filler mixture of the above constituents ha~ an optimum packing density if the coating compound additionally contains not more than 10 % by weight of fibers of which at least some are water-dispersLble inorganic fibers. The coating compound preferably contains O.S to 2 % by weight of fibers, based on the solids content. Examples of the fibers which can be used are organic fibers, such as cellulose fibers, and examples of the inorganic water-dispers~ble fibers are water-dispersi~le mineral or gla~s fibers.
The maximum grain diameter of the filler6 used is in the , , .
: . . . ~ .. , 2 0 ~ i 2 :L
range of 200 to 1000 ~m, preferably 300 to 400 ~m.
As a further constituent the sprayable coating compound contains water in a sufficient quantity to balance the weight ratio.
The coating compound according to the invention can moreover contain additives which serve e.g. as anti-freezing agents, agents to improve the wetting of the fillers ~nd fibers, fungicidal and microbacterial preservatives, and thickening agents and/or to corrosion inhibitors.
Although the coating compound according to the invention has only a low binding agent content, crack-formation nevertheless does not take place on drying. In addition to the reduced tendency to form crac~s the coating compound according to the invention has improved noise-suppression properties and an improved behavior with respect to fire.
The coating compound can be applied onto noise-radiating surfaces in a simple manner with the usual techniques, preferably the spray process. The improved retention on vertical surfaces has proved to be a further advantage.
The applied coating compound is then dried by means of conventional processes and thus hardened.
In the production of the coating compound for noise-~uppression according to the invention the basic .
2 ~ ~ ~3 2 1 constituents and any optional additives used are processed into a homoqeneou~ mass in suitable conventional kneading or stirring machines with the maximum possible mixer capacity and shearing action.
It is preferred that the chosen filler~ are first mixed together as carefully as possible with the well opened-up fibers, the water and a small proportion or without any of the synthetic resin dispersion which acts as the binding agent. After complete homogenization of this premix is almost reached the remaining synthetic resin dispersion i8 added.
Xxa le To produce a coating compound according to the invention the components listed below were mixed in a mixer. About 40 % of the total amount of water together with the additives and the fibers were placed in the mixer and briefly mixed together. Then a mixture of the fillers listed, the grain-size distribution of which followed the Fuller Curve, and the remaining water were added into the mixer in any order. After complete homogenization of this premix is almost achieved, the aqueous synthetic resin 2S dispersion was added while the mixer was in operation. To avoid any possible damage to the synthetic resin dispersion the mixing vessel was cooled during the mixing process.
,; i .
. : . . :
: .. ; , : : .~ ; .: -. ~
.
.
2 011~ w 1 TablQ
ComPonents Wt.-%
Synthetic resin dispersion of 8.25 wt.-% 15.0 synthetic xesin and 6.75 wt.-% water hydrargillite (Al(OH)3) 20.0 acoustically effective fillers 35.0 organic fibers 0.5 inorganic water-dispersible fibers 0.5 ~ ' water 26.0 isopropanol (anti-freezing agent) 2.0 additives (biocides, surfactants) 1.0 The sprayable coating compound obtained in this way had the following propertie~:
cone penetration (DIN ISO2137)s330 + 30 x 10-1 mm solids content (DIN 53215): 65 + 1~
. ... . .. .. .. . .
. ~ ~ . ,.. , . ., -~ . .. ~ ~ . . , ` ~ ~ o ~
pH value: 9 to 10 specific weight, wet: 1.4 + 0.1 g/cm3 specific weight, dry: 1.2 + 0.1 g/cm3 1088 factor according to DIN 53 440 at 20C, 200 Hertz on 1 mm steel sheet with 1.5 x sheet thickness : at least 0.13 with 2 x sheet thickness : at least 0.20 `, non-combustible according to DS 899/35 degree of combustibility - degree of smoke emission - degree of liquidity (test criteria of the German Federal Railway): 4 - 4 - 4 not easily inflammable according to DIN 4102/Part 1, Class B 1 There wa~ no crack-formation during the drying process of thi~ coating compound.
,
Teroson GmbH (25926/UGS/gro/wo) Hans-Bunte-Str. 4 6900 Heidelberg 1 March 1990 SpraYable coatinq comPositions for noise-suDPres~ion The invention relates to a sprayable coating compound for noise- suppression on the basis of an aqueous synthetic resin dispersion, fillers and fibers.
Very thin metal sheets are used almost exclusively today in the production of vehicles, machines and appliances. These thin sheets are unavoidably set into vibration by mechanically moving parts or running motors and as a consequence radiate noise. In order to reduce this noise radiation, these sheets are provided, particularly in car manufacture and in the production of household appliances, with noise-suppressing coatings, so-called anti-noise coatings.
Noise-suppressing coatings are known which are based on aqueous or solvent-containing synthetic resin or bitumen dispersions. Fillers and/or fibers are added to these coatings to reduce combustibility and to improve retention on vertical walls and/or to improve noise-suppressing properties. The coating composition previously used are ... . . . . .
,. , .,:, ~ ~ :. . , : . . , ~- ; ;j. . . . . .
, ~ ,- ; . :
, . . .
~, ` ~ 28~
either systems which are relatively high in binding agents, which only have a slight tQndency towards crac~ formation in the drying process but which are easily inflammable, or systems relatively low in binding agents, which exhibit a better combustion behavior but which tend to show a high degree of crack formation.
It is important to make available coating composition for noise absorption which despite their low binding agent content are not easily inflammable, especially in view of growing environmental concern and higher fire-safety requirements which are of increasing significance particularly for new technical developments, e.g. for high speed train6. Moreover, it should be possible to apply such coating composition in a simple manner, e.g. by means of the spray process, for the latter to have improved noise-suppression properties and be essentially free of solvents, halogens, heavy metals and asbestos.
The basic ob~ect of the invention is to make available such coating compo3ition.
, This is surprisingly achieved by the sprayable coating compound according to the main claim. The sub-claims relate to preferred embodiments of the invention.
The sprayable coating compound for noise-suppression according to the invention contains not more than 30 % by - . . . .
-`' . t w~ight, preferably 10 to 15 % by weight, of an aqueous synthetic resin dispersion or a mi~ture of different synthetic resin dispersions and is therefore low in binding agents. Suitable synthetic resins are generally homopolymers, copolymers and/or hydrocarbon resins with glass transition temperatures below room temperature, which are able to form adhesive films and aqueous, solvent-free dispersions which are stable even with high filler contents.
Aqueous synthetic resin dispersions are preferably used which are based on e.g. polyvinylacetate, ethylene-vinylacetate, styrene-butadiene, styrene-butadiene-styrene or styrene-isoprene-styrene polymers, polyurethane and/or acrylic acid ester copolymer and particularly preferred are resin dispersions based on acrylic acid ester coppolymers.
The solids content of the coating compound is not less than 50 % by weight and preferably 60 to 70 % by weight.
The total content of organic constituents in the coating compound according to the invention is not more than 25 %
by weight and preferably 10 to 15 % by weight, based on the solid~ content.
The coating composition also contains as a flame-inhibiting filler inorganic compounds or minerals wich are essentially free of heavy metals and halogen and which are able to : . .
' :' ., : .
,: , .
. . .
dehydrate at elevated temperatures, in an amount of not less than 10 ~ by weight and preferably 25 to 35 % by weight, based on the solids content. Preferred ~xamples for such compounds or minerals are magnesium hydroxide, magnesium sulfate heptahydrate, alums and/or hydrargillite with hydrargillite being especially preferred. The coating compound which is given flame-inhibiting properties in this way is free of halogen and heavy metals, this contributes considerably to its excellent environment-friendly nature.
The content of acoustically effective fillers is not less than 20 % by weight and preferably 40 to 60 ~ by weight, based on the solids content. Preferred examples of the acoustically effective filler~ which can be used are mica, powdered slate, montmorillonite flakes, glass flakes, metal flakes, graphite, talcum and/or clay minerals, with mica being e~pecially preferred. `-It i8 an esRential characteristic of the coating compound according to the invention that the mixture consisting of the flame-inhibiting filler(s) and the acoustically effective filler(s) has a size-distribution curve as a result of plotting the proportion D of the filler mixture passing through the screen in percentage by weight on the ordinate against the grain diameter d of the particles of the filler mixture in millimeters on the abscissa, which essentially obeys the equation ,, -~
... . ., .. , . : ... . ... . . ...... . .
.. . . . ~ ... .
.... ...
:
L
d D ; _____ d~
in which D represents the screen through-flow in % by weight, d represents the grain diameter in millimeters and d3~ represents the maximum grain diameter in millimeters.
The curve corresponding to the above equation is described as the ~Fuller Curve" and indicates the grain-size distribution necessary for obtaining the tightest packing of the granulation. The cavities in the filler mixture are reduced to a minimum due to this optimized grain-size distribution.
Surprisingly, despite the fact that the different grain shapes of th~ fillers used are not taken into consideration, a coating compound with a filler mixture of the above constituents ha~ an optimum packing density if the coating compound additionally contains not more than 10 % by weight of fibers of which at least some are water-dispersLble inorganic fibers. The coating compound preferably contains O.S to 2 % by weight of fibers, based on the solids content. Examples of the fibers which can be used are organic fibers, such as cellulose fibers, and examples of the inorganic water-dispers~ble fibers are water-dispersi~le mineral or gla~s fibers.
The maximum grain diameter of the filler6 used is in the , , .
: . . . ~ .. , 2 0 ~ i 2 :L
range of 200 to 1000 ~m, preferably 300 to 400 ~m.
As a further constituent the sprayable coating compound contains water in a sufficient quantity to balance the weight ratio.
The coating compound according to the invention can moreover contain additives which serve e.g. as anti-freezing agents, agents to improve the wetting of the fillers ~nd fibers, fungicidal and microbacterial preservatives, and thickening agents and/or to corrosion inhibitors.
Although the coating compound according to the invention has only a low binding agent content, crack-formation nevertheless does not take place on drying. In addition to the reduced tendency to form crac~s the coating compound according to the invention has improved noise-suppression properties and an improved behavior with respect to fire.
The coating compound can be applied onto noise-radiating surfaces in a simple manner with the usual techniques, preferably the spray process. The improved retention on vertical surfaces has proved to be a further advantage.
The applied coating compound is then dried by means of conventional processes and thus hardened.
In the production of the coating compound for noise-~uppression according to the invention the basic .
2 ~ ~ ~3 2 1 constituents and any optional additives used are processed into a homoqeneou~ mass in suitable conventional kneading or stirring machines with the maximum possible mixer capacity and shearing action.
It is preferred that the chosen filler~ are first mixed together as carefully as possible with the well opened-up fibers, the water and a small proportion or without any of the synthetic resin dispersion which acts as the binding agent. After complete homogenization of this premix is almost reached the remaining synthetic resin dispersion i8 added.
Xxa le To produce a coating compound according to the invention the components listed below were mixed in a mixer. About 40 % of the total amount of water together with the additives and the fibers were placed in the mixer and briefly mixed together. Then a mixture of the fillers listed, the grain-size distribution of which followed the Fuller Curve, and the remaining water were added into the mixer in any order. After complete homogenization of this premix is almost achieved, the aqueous synthetic resin 2S dispersion was added while the mixer was in operation. To avoid any possible damage to the synthetic resin dispersion the mixing vessel was cooled during the mixing process.
,; i .
. : . . :
: .. ; , : : .~ ; .: -. ~
.
.
2 011~ w 1 TablQ
ComPonents Wt.-%
Synthetic resin dispersion of 8.25 wt.-% 15.0 synthetic xesin and 6.75 wt.-% water hydrargillite (Al(OH)3) 20.0 acoustically effective fillers 35.0 organic fibers 0.5 inorganic water-dispersible fibers 0.5 ~ ' water 26.0 isopropanol (anti-freezing agent) 2.0 additives (biocides, surfactants) 1.0 The sprayable coating compound obtained in this way had the following propertie~:
cone penetration (DIN ISO2137)s330 + 30 x 10-1 mm solids content (DIN 53215): 65 + 1~
. ... . .. .. .. . .
. ~ ~ . ,.. , . ., -~ . .. ~ ~ . . , ` ~ ~ o ~
pH value: 9 to 10 specific weight, wet: 1.4 + 0.1 g/cm3 specific weight, dry: 1.2 + 0.1 g/cm3 1088 factor according to DIN 53 440 at 20C, 200 Hertz on 1 mm steel sheet with 1.5 x sheet thickness : at least 0.13 with 2 x sheet thickness : at least 0.20 `, non-combustible according to DS 899/35 degree of combustibility - degree of smoke emission - degree of liquidity (test criteria of the German Federal Railway): 4 - 4 - 4 not easily inflammable according to DIN 4102/Part 1, Class B 1 There wa~ no crack-formation during the drying process of thi~ coating compound.
,
Claims (11)
1. Sprayable coating compound for noise-suppression based on an aqueous synthetic resin dispersion, fillers and fibers, characterized in that it comprises a) not more than 30 % by weight of an aqueous synthetic resin dispersion or a mixture of different synthetic resin dispersions, b) a filler mixture having a maximum grain diameter in the range of 200 to 1000 µm and consisting of i) not less than 10 % by weight, based on the solids content, of inorganic compounds or minerals which are essentially free of heavy metals and halogen and which are able to dehydrate at elevated temperatures as flame-inhibiting fillers and ii) not less than 20 % by weight based on the solids content of acoustically effective fillers, c) not more than 10 % by weight of fibers of which at least a part are water-dispersible inorganic fibers, d) water and e) optionally usual additives, wherein organic constituents are present in an amount of not more than 25 % by weight, based on the solids content, the solids content is not less than 50 % by weight, and the filler mixture has a size distribution curve resulting from plotting the screen through-flow D of the filler mixture passing through the screen in % by weight on the ordinate against the grain diameter d of the particles of the filler mixture in millimeters on the abscissa, which essentially obeys the equation in which D represents the screen throughflow in % by weight, d represents the grain diameter in millimeters and dmax represents the maximum grain diameter in millimeters.
2. A coating compound according to claim 1, characterized in that it comprises 10 to 15 % by weight of aqueous synthetic resin dispersion.
3. A coating compound according to claim 1 or 2, characterized in that the solids content is 60 to 70 % by weight.
4. A coating compound according to claims 1 or 2, characterized in that it comprises 10 to 15 % by weight of organic constituents, based on the solids content.
5. A coating compound according to claims 1 or 2, characterized in that it comprises 25 to 35 % by weight of flame-inhibiting fillers, based on the solids content.
6. A coating compound according to claims 1 or 2, characterized in that it comprises 40 to 60 % by weight of acoustically effective fillers, based on the solids content.
7. A coating compound according to claims 1 or 2, characterized in that it comprises 0.5 to 2 % by weight of fibers, based on the solids content.
8. A coating compound according to claims 1 or 2, characterized in that the filler mixture has a maximum grain diameter in the range of 300 to 400 µm.
9. A coating compound according to any one of claims 1 or 2, characterized in that it comprises mica, powdered slate, montmorillonite flakes, glass flakes, metal flakes, graphite, talcum and/or clay minerals as acoustically effective fillers.
10. A coating compound according to any one of claims 1 or 2, characterized in that it comprises magnesium hydroxide, magnesium sulfate heptahydrate, alums and/or hydrargillite as flame-inhibiting fillers.
11. A method of noise-suppression of sound-radiating surfaces in which the coating compound according to any one of claims 1 to 10 is applied to the surfaces and subsequently the coating is dried.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3907604.0 | 1989-03-09 | ||
| DE3907604A DE3907604A1 (en) | 1989-03-09 | 1989-03-09 | DISPLAYABLE COATING MASS FOR SOUND-CLOSING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2011521A1 true CA2011521A1 (en) | 1990-09-09 |
Family
ID=6375908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002011521A Abandoned CA2011521A1 (en) | 1989-03-09 | 1990-03-05 | Sprayable coating substances for noise-suppression |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0386646A1 (en) |
| JP (1) | JPH02272069A (en) |
| CA (1) | CA2011521A1 (en) |
| DD (1) | DD292472A5 (en) |
| DE (1) | DE3907604A1 (en) |
| FI (1) | FI901190A0 (en) |
| NO (1) | NO901099L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6531541B1 (en) | 2000-05-19 | 2003-03-11 | Ppg Industries Ohio, Inc. | Coating compositions, coated substrates and methods for inhibiting sound transmission through a substrate |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4137241C2 (en) * | 1991-11-13 | 1996-05-30 | Eckhard A Ullrich | Thin-walled sound and fire protection element designed as a "sandwich element" |
| CH684093A5 (en) * | 1992-07-08 | 1994-07-15 | Hans Dietrich Sulzer | Elastic coating compsn esp used in building and machine construction - contg deformable hollow granulate, other inorganic additive and stabiliser in organic elastic binder, giving large expansion and fire retardance |
| DE9213527U1 (en) * | 1992-10-07 | 1993-04-29 | Sulzer, Hans-Dietrich, Herrliberg | Airborne sound-absorbing insulating plaster |
| DE10118632A1 (en) * | 2001-04-12 | 2002-10-17 | Miele & Cie | Noise and heat insulated wash chamber for a dishwasher is provided, on the outer surfaces of the walls and possibly the door, with a non foamed insulating compound based on polyurethane |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2423618C3 (en) * | 1974-05-15 | 1981-02-26 | Hoechst Ag, 6000 Frankfurt | Plaster mix |
| GB1494279A (en) * | 1975-07-10 | 1977-12-07 | British Petroleum Co | Bituminous composition |
| JPS5628252A (en) * | 1979-08-16 | 1981-03-19 | Kuraray Co Ltd | Water-dispersed vibration damping paint |
| DE3120831A1 (en) * | 1981-05-26 | 1982-12-16 | SKS-Technik Säure- und Korrosionsschutz GmbH, 7320 Göppingen | Plastic mortars for the production of screeds or concrete |
| DE3433617A1 (en) * | 1984-09-13 | 1986-03-20 | Unitecta Oberflächenschutz GmbH, 5650 Solingen | Paint |
-
1989
- 1989-03-09 DE DE3907604A patent/DE3907604A1/en not_active Ceased
-
1990
- 1990-03-02 EP EP90104061A patent/EP0386646A1/en not_active Withdrawn
- 1990-03-05 CA CA002011521A patent/CA2011521A1/en not_active Abandoned
- 1990-03-08 DD DD90338516A patent/DD292472A5/en unknown
- 1990-03-08 JP JP2055170A patent/JPH02272069A/en active Pending
- 1990-03-08 NO NO90901099A patent/NO901099L/en unknown
- 1990-03-08 FI FI901190A patent/FI901190A0/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6531541B1 (en) | 2000-05-19 | 2003-03-11 | Ppg Industries Ohio, Inc. | Coating compositions, coated substrates and methods for inhibiting sound transmission through a substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| FI901190A0 (en) | 1990-03-08 |
| NO901099D0 (en) | 1990-03-08 |
| JPH02272069A (en) | 1990-11-06 |
| DD292472A5 (en) | 1991-08-01 |
| EP0386646A1 (en) | 1990-09-12 |
| NO901099L (en) | 1990-09-10 |
| DE3907604A1 (en) | 1990-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |