CN101454517A - Acoustical tile - Google Patents
Acoustical tile Download PDFInfo
- Publication number
- CN101454517A CN101454517A CNA2007800198260A CN200780019826A CN101454517A CN 101454517 A CN101454517 A CN 101454517A CN A2007800198260 A CNA2007800198260 A CN A2007800198260A CN 200780019826 A CN200780019826 A CN 200780019826A CN 101454517 A CN101454517 A CN 101454517A
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- Prior art keywords
- sound
- absorbing brick
- formaldehyde
- absorbing
- brick
- Prior art date
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Abstract
The present invention relates to an acoustical tile that includes a core and a surface treatment. The surface treatment comprises a formaldehyde-free latex binder, the binder including at least one formaldehyde-free biocide. The present invention also provides a process of manufacturing an acoustical tile.
Description
Background technology
The sound-absorbing brick is in the one-off design system that strengthens tonequality such as interior spaces such as room, corridor or assembly halls by sound-absorbing or minimizing sound transmission.Although the sound-absorbing brick is of a great variety, the sound-absorbing brick of general type is made up of mineral wool fiber, filler, pigment and cementing agent usually, and for example U.S. Patent No. 1,769, and is disclosed in 519.These materials are with multiple other materials, can be used for providing having desirable acoustical behavior and such as the sound-absorbing brick of other performances such as color and outward appearance.
Yet, as mentioned above, although existing multiple business-like spendable sound-absorbing brick product, the acoustic ceiling product of on market now, not forming usually that does not contain formaldehyde by mineral wool fiber.Many products that classify as low volatile organic product (VOC) emission all can use, but owing to there is the component of multiple formaldehyde emission in these bricks in the component utilized, all these products all give off the formaldehyde of the degree that can detect.The inventor finds that some polymeric binder that is applied in surface-treated layer and back coating self just comprises, discharges, discharges or produce formaldehyde.In addition, but the additive that comprises in surface-treated layer and the back coating such as hygrometric state anticorrisive agent or biocides etc. also can discharge, discharge or produce and can detect and the formaldehyde of quantitative extent.So even formaldehyde is not the polymeric binder used in the sound-absorbing brick or the component of biocides, the sound-absorbing brick still may discharge because of multiple reason, discharging or produce formaldehyde, comprise the degraded of polymeric binder for example and/or biocides.Although the formaldehyde emissions thing that produces in the hot process-exposed in the manufacturing process can be discharged in the chimney or by hot oxidant consume, the product that obtains still can contain the residual formaldehyde that can discharge when mounted.The reduction of formaldehyde emissions or the elimination of this type of discharging can provide the IAQ (indoor air quality) of improvement such as places such as school, health care institution or office buildings what those had installed the sound-absorbing brick.
The invention provides a kind of sound-absorbing brick and a kind of method of making the sound-absorbing brick.By to specific descriptions of the present invention, above-mentioned and other advantages of the present invention to one skilled in the art will become apparent.
Summary of the invention
The invention provides a kind of sound-absorbing brick that comprises plate core and surface-treated layer.Further, the invention provides a kind of sound-absorbing brick that does not contain formaldehyde that comprises plate core and surface-treated layer.Described surface-treated layer comprises the latex binder that does not contain formaldehyde and comprises at least a biocides that does not contain formaldehyde.
In addition, the invention provides a kind of sound-absorbing brick, further be to comprise plate core and surface-treated layer separately by a kind of sound-absorbing brick that does not contain formaldehyde, wherein said surface-treated layer comprised before drying: the water of about 30～about 50 weight %; The filler of about 40～about 60 weight %; The TiO of about 2～about 15 weight %
2The latex that does not contain formaldehyde of about 2～about 20 weight %; The dispersing agent of about 0.25～about 1.00 weight %; The thickener of about 0.01～about 1.00 weight %; The surfactant of about 0.10～about 1.00 weight %; The defoamer of about 0.05～about 0.50 weight %; The biocides that does not contain formaldehyde with about 0.01～about 1.50 weight %.
In addition, the invention provides a kind of manufacture method of sound-absorbing brick, further is the manufacture method that does not contain the sound-absorbing brick of formaldehyde.Described method comprises preparation sound-absorbing brick plate core and to described plate core coated surfaces processing layer, wherein said surface-treated layer comprises the latex binder that does not contain formaldehyde and comprises at least a biocides that does not contain formaldehyde.
Further, the invention provides a kind of surface-treated layer.The present invention also provides a kind of maybe can discharge, discharges or produce the sound-absorbing brick that the quantitatively surfacing of the component of formaldehyde is handled through not adding formaldehyde.Further, the invention provides and a kind ofly maybe can discharge, discharge or produce the sound-absorbing brick that does not contain formaldehyde that the quantitatively surfacing of the component of formaldehyde is handled through not adding formaldehyde.
Description of drawings
Fig. 1 is the sound-absorbing brick schematic diagram that does not contain formaldehyde according to one aspect of the invention.
The specific embodiment
The present invention includes a kind of sound-absorbing brick.According on the other hand, the present invention also comprises a kind of sound-absorbing brick that does not contain formaldehyde.
Term as used herein " the sound-absorbing brick that does not contain formaldehyde " is meant that the brick of manufacturing discharges or the degree of formaldehyde emission be lower than can be quantitative limit, get final product lower limit of quantitation (low LOQ), but should lower limit of quantitation be set up by the testing scheme that the employing minienvironment experimental cabin on July 15th, 2004 detects the standard schedule (the Standard Practice For The Testing Of Volatile OrganicEmissions From Various Sources Using Small-Scale Environmental Champers) (being designated hereinafter simply as standard schedule) of the volatility organic emission of multiple emission source, this standard schedule has merged the standard of the American Society for Testing Materials (ASTM) of the many ASTM of comprising D5116-97.It is 10 times the analyte quality that the response that produced is higher than the noise level line standard deviation 10 times or the lower limit standard replicate analysis of instrument that above-mentioned standard schedule 3.9.7.1 money defines " but lower limit of quantitation ".Term " does not contain formaldehyde " but release or the discharge value of expression formaldehyde are less than about lower limit of quantitation.In a preferred implementation, the formaldehyde that does not contain the sound-absorbing brick of formaldehyde provided by the invention discharges or discharge value is usually less than about 2 μ g/m
3In a preferred embodiment, the release or the discharge value of the formaldehyde of the sound-absorbing brick that does not contain formaldehyde provided by the invention are usually less than about 1 μ g/m
3Although sound-absorbing brick constructed in accordance, all be limit herein do not contain formaldehyde, storage that described sound-absorbing brick is preferably and mode should be avoided being exposed in the VOC pollutant (especially formaldehyde) that the sound-absorbing brick that can not contained formaldehyde absorbs.
The sound-absorbing brick that does not contain formaldehyde according to the preferred embodiment of the present invention, its desirable reason has many, especially because the consequence that is unfavorable for healthy and environment that VOC emission, particularly formaldehyde bring.For example, formaldehyde is classified as human carcinogen by the international cancer research institution of branch of the World Health Organization.Increasing laws and rules clause requires to reduce the discharge standard of formaldehyde.For example, in the high energy efficiency school Concert, California particular surroundings requirement, the 01350th section of standard comprised emission test program and the maximum acceptable concentration of the VOC that selects for use, this is first healthy class constructional materials standard.Based on lab scale hatch checking test according to the standard method of ASTM D 5116-97, for with the adverse effect minimized purpose of constructional materials to IAQ (indoor air quality) and occupants's health, the sub-clause that CHPS is 01350 section is concentrated selection and the processing of paying close attention to constructional materials.CHPS was adopted by above-mentioned standard schedule in 2004.
Above-mentioned standard schedule also standard the flow process of sample reception, processing and preparation.As standard in the standard schedule, each specimen should be carried out 96 hours test subsequently preliminary treatment in 23 ± 2 ℃ and 50 ± 10% the relative humidity 10 days ± 5 hours.After above-mentioned preprocessing process was finished, based on the lab scale hatch checking test according to described standard schedule, this method of testing needed 24,48 and 96 hours acquisition test cabin air samples after the experimental cabin test beginning.Instrument calibration and evaluation are carried out in requirement, and each compound is carried out quantitatively.
According to the sound-absorbing brick that does not contain formaldehyde of one aspect of the invention, as schematically illustrating among Fig. 1, comprise sound-absorbing brick plate core 10, surface-treated layer 20 and optional backing 30.U.S. Patent No. 1,769,519 have described the exemplary flow of making the sound-absorbing brick.In one aspect, plate core 10 comprises mineral wool fiber and starch, and wherein said mineral wool fiber can comprise various fibers, for example mineral wool, rock wool and/or basalt wool.In another aspect of this invention, the starch ingredients in the above-mentioned sound-absorbing brick that does not contain formaldehyde can be as U.S. Patent No. 1,769, the starch gel of disclosed cementing agent as mineral wool fiber in 519,3,246,063 and 3,307,651.Aspect another, described sound-absorbing brick plate core 10 comprises glass fiber of the present invention.
Sound-absorbing brick of the present invention can adopt multiple technologies manufacturing.In one embodiment, plate core 10 passes through as U.S. Patent No. 4,911, the wet types of 788 and 6,919,132 explanations-or water-bonding process preparation.Surface-treated layer 20 described herein and backing 30 also can be used for the sound-absorbing brick by wet type-bonding process preparation.Those skilled in the art should be appreciated that how the described surface-treated layer 20 of modification and backing 30 are to be used for the plate core 10 of wet type-bonding.In a preferred embodiment, the preparation of described plate core 10 is by combination in water provides slurry with mixing with starch and various additive.Described slurry is heated to come cooking starch and make starch gel, and the gained starch gel mixes with mineral wool fiber again.The bond of this gel, additive and mineral wool fiber (being called " slurry ") is dosed in the groove in continuous process.The bottom of the groove that slurry is dosed into (for example optionally comprises backing 30, paper, the unbleached paper of bleaching, or the aluminium foil of kraft backing are called kraft/aluminium foil herein), backing 30 is used for assisting in material and takes out from groove, also can keep a part that becomes final products simultaneously.The surface of described slurry can form figure, can will contain the groove drying of slurry subsequently, for example, with them by the convection current canal drier.Then, the product or the slab of drying can be put into the completion line, can be cut into certain size there described sound-absorbing brick plate core 10 is provided.Then, coating, the drying of process surface treating composition provided surface-treated layer 20 of the present invention afterwards, and plate core 10 just can be transformed into the sound-absorbing brick that does not contain formaldehyde of the present invention.Preferred described surface treating composition forms also at the plate core and is coated on the described plate core 10 after the drying.
As mentioned above, the described plate core 10 that does not contain the sound-absorbing brick of formaldehyde also can comprise various other additives and reagent.For example, plate core 10 can comprise calcium sulfate material (for example, plaster, gypsum and/or anhydrite), boric acid and calgon (SHMP).When making the sound-absorbing brick, can substitute plaster and boric acid with kaolin and guar gum.In another embodiment, plate core 10 can comprise as anticorrisive agent one or more do not contain the biocides of formaldehyde as described here.
Discuss as preamble, sound-absorbing brick according to the present invention comprises backing 30 alternatively.Many materials can be used as backing 30, comprise the paper of bleaching, unbleached paper and kraft/aluminium foil, etc.Fire-resistant back coating can be used in combination the surface burning characteristics that strengthens product with the bleaching or the unbleached paper gasket back of the body arbitrarily.Described fire-resistant back coating can comprise various ingredients, such as, for example water, fire retardant and biocides etc.Backing 30 also can be used for improving sag resistance and/or sound control.In addition, fill coating or multilayer filling coating and also can be coated on backing 30.Described filling coating can comprise various ingredients, such as, for example water, filler, cementing agent and various other such as additives such as defoamer, biocides and dispersing agents.
Described surface-treated layer 20 comprises by the latex that does not contain formaldehyde of natural or synthetic polymer and one or more and does not contain the biocides of formaldehyde.Provide described surface-treated layer 20 to comprise the biocides in non-formaldehyde emissions source with the described latex that does not contain formaldehyde of film-strength.Term " latex that does not contain formaldehyde " is meant and does not use formaldehyde as used herein, or does not use the material of meeting generation or formaldehyde emission, or the latex that does not use both to make.Consistent with the present invention, have only the biocides that does not contain formaldehyde to be included in the described latex that does not contain formaldehyde, so the described latex that does not contain formaldehyde neither discharges or produce formaldehyde as the accessory substance of drying, do not discharge or produce formaldehyde herein as the result of the described biocides that comprises yet.The appropriate materials that is used to prepare the latex that does not contain formaldehyde comprises, is exemplified as: thermoplasticity acrylic acid synthesizing base polymer, can adopt EI 8764 (ROHM AND HAAS); The copolymer of vinyl and acrylic compounds can adopt HP 31-316NF; The trimer of ethene, vinyl chloride and vinylacetate; The homopolymers of polyvinyl acetate can adopt PD 0062 (H.B.Fuller); The copolymer of vinylacetate and acrylic compounds can adopt
3103 (ROHM AND HAASs); The copolymer of styrene and acrylic compounds, can adopt DL218NA (DOW Chemical) and
296D (BASF); Epoxy polymer emulsion can adopt
3510-W60 (Celanese); Polyurethane; And polyvinyl alcohol, can adopt
(AirProducts); Or their combination.Other appropriate materials that are used to make the latex that does not contain formaldehyde comprise the water-soluble polymer such as cellulose ether etc.Suitable cellulose ether comprises: methylcellulose, can adopt Methocel
TMA (DOW Chemical) and
(Hercules Co., Ltd); Methyl hydroxyethylcellulose can adopt
MH300 (Shin Etsu); Methylhydroxypropylcellulose can adopt Methocel
TM228 (DOW Chemicals); Hydroxypropyl cellulose can adopt
(Hercules Co., Ltd); Sodium carboxymethylcellulose can adopt
C (Shin Etsu), CMC7H (Hercules Co., Ltd), and Cellosize
TMCMC P-75-M (DOW Chemical); And hydroxyethylcellulose, can adopt
250HBR (Hercules Co., Ltd), Cellosize
TMWP-09 (DOW Chemical).Other water-soluble natural polymer that are suitable for comprise the starch of pregelization, can adopt Calbond
TMThe polymer in (MGP Ingredients Co., Ltd) and soybean protein source can adopt
550 Hes
4200 (Du Pont's soy polymers).It will be understood by those skilled in the art that the above-mentioned latex that does not contain formaldehyde can comprise that one or more do not contain the latex of formaldehyde.Further, consistent with the present invention and at the formaldehyde emissions of being devoted to further to reduce sound-absorbing brick of the present invention, the described latex that does not contain formaldehyde prepared or that provide does not comprise discharging or produces the biocides of formaldehyde.
Above-mentioned surface treating composition and backing 30 all can by adopt multiple known and those skilled in the art can with technology apply, comprise, for example airless spraying system, the auxiliary paint finishing of air, or the like.Described surface treating composition and backing 30 also can be by flow coats, overflowing is coated with (flood coating) or applies with roll coater.The products obtained therefrom drying is removed any water and/or solvent that is used as the carrier of surface treating composition or its any component, and polymeric binder is transformed into the structural rigidity net in order to surface-treated layer 20 to be provided.
Consistent with the present invention and be devoted to the formaldehyde emissions of sound-absorbing brick of the present invention is further reduced, above-mentioned surface-treated layer comprises, do not discharge or produce the biocides of formaldehyde as one or more of anticorrisive agent.Preferably, to be coated to plate core previous crops at latex be that the component of surface-treated layer joins in the latex to the biocides that does not contain formaldehyde.For example, the biocides that does not contain formaldehyde can or even join in the latex after the latex manufacture process in the latex manufacture process.Compare with the component as above-mentioned surface-treated layer, the described biocides that does not contain formaldehyde can preferentially be used as the anticorrisive agent of latex in transportation and/or the storage process.The above-mentioned biocides that does not contain formaldehyde can be used as the anticorrisive agent of sound-absorbing brick of the present invention.
Biocides is used to eliminate or suppress the organism of multiple survival, comprises mould (mold)/mould (mildew), fungi, saccharomycete, algae and bacterium.Thereby for example, biocides can comprise antimicrobial, antifungal agent, antibacterial agent, or the like.The suitable biocides that does not contain formaldehyde comprises isothiazoline-3-ketone, has following core texture:
Preferably isothiazoline-3-ketone comprises, for example: 1,2-phenyl isothiazoline-3-ketone can adopt
GXL or
CRL (ARCH Chemicals),
200 (Nalco), Canguard
TMBIT (DOW Chemical) and Rocima
TMBT 1S (ROHM AND HAAS).Other isothiazoline-3-ketone comprises 1, and the mixture of 2-benzisothiazole-3-ketone and 2-methyl-4-isothiazoline-3-ketone can adopt
MBS (Acti-Chem).Isothiazoline-3-the ketone that replenishes comprises 5-chloro-2-methyl-4-isothiazoline-3-ketone, 2-methyl-4-isothiazoline-3-ketone and their mixture.The mixture of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone can adopt Kathon
TMLX (ROHM AND HAAS),
K14 (Troy Chemical) and
251 (Drew Chemical).The another kind of suitable biocides that does not contain formaldehyde comprises that (zinc1-hydroxy-2 (1H)-pyridinethione) can adopt Zinc to 1-hydroxyl-2 (1H)-pyrithione zinc
(ARCHChemicals), all very effective in dry state and hygrometric state.1-hydroxyl-2 (1H)-pyrithione zinc also can use with zinc oxide, can adopt Zinc
Emulsion.Other suitable biocides that do not contain formaldehyde comprise 2-n-octyl group-4-isothiazoline-3-ketone, can adopt Kathon
TM893 Hes
M-8 (ROHM AND HAAS), and 2-(4-thiazolyl)-benzimidazole can adopt
TK-100 (LanXess).
Described biocides can use separately, or unites use, so long as no matter be that the biocides that uses separately or the combination of employed biocides are not discharged and do not produced formaldehyde yet and get final product.Similarly, as long as described biocides do not discharge or produces formaldehyde, be included in the surface-treated layer in the above-mentioned latex, above-mentioned and in latex and in the surface-treated layer biocides of coupling content all without limits.It should be understood that and before latex is coated to the plate core or before it uses in the surfacing, can add one or more biocides in latex binder if latex does not contain biocides during fabrication.Importantly the combination of this type of biocides or biocides all is selected from those do not discharge, discharge or produce formaldehyde when latex uses or after the drying biocides or biocides combination arbitrarily.
Described surface-treated layer 20 generally includes except that the latex binder that does not contain formaldehyde and does not contain component the biocides of formaldehyde.For example, surface treating composition is dry form described surface-treated layer 20 before, surface treating composition can be scattered in all kinds of solvents or carrier such as water.Although water is most preferred solvent or carrier, also can use various other solvents or carrier.Surface-treated layer 20 also can comprise multiple filler, for example comprises: kaolin pneumatically supported, that wash or calcining; The precipitation or dry-ground whiting or limestone; Or such as silicate such as mica, glass, micropore ceramics, feldspar or nepheline syenite.In addition, surface-treated layer 20 can comprise kieselguhr, French chalk, gypsum calcite or zinc oxide.Described filler adds as required, for example, is used to regulate the opacity of color, rheological characteristic and covering power or surface-treated layer.
In addition, can be with TiO
2Add in the surface-treated layer 20 brightness and opacity are provided.Described surface-treated layer 20 also can comprise: dispersing agent is used to disperse various solids and prevents their cohesions; Thickener is used for coating and keeps and improve applying viscosity; Surfactant; And defoamer, be used for minimum air and carry secretly.Described dispersing agent, thickener, surfactant, filler and defoamer all select not discharge or produce formaldehyde.
Various dispersing agents, thickener, surfactant and defoamer can be used in the surface-treated layer of the sound-absorbing brick that does not contain formaldehyde of the present invention.Suitable dispersing agent comprises four potassium pyrophosphates (TKPP) (FMC Corp.) and polycarboxylate sodium, can adopt
731A (ROHM AND HAAS).The example of thickener is a hydroxyethylcellulose, can adopt
(Hercules Co., Ltd).Exemplary surfactants is a Nonyl Phenol ethoxylated, can adopt
CO-630 (the inferior Canada Company in sieve ground).Exemplary breathable is the oils defoamer, can adopt Hi-Mar DFC-19 (Hi-Mar Specialties Co., Ltd).It will be understood by those skilled in the art that described surface treating composition can comprise one or more above-mentioned various dispersing agents, thickener, surfactant, filler and defoamer.
Surface-treated layer can adopt the multiple formulations design.In one embodiment, the design of the prescription of surface-treated layer 20 comprises the water of about 30～about 50 weight %; The filler of about 40～about 60 weight %; The TiO of about 2～about 15 weight %
2The latex of about 2～about 20 weight %; The dispersing agent of about 0.25～about 1.00 weight %; The thickener of about 0.01～about 1.00 weight %; The defoamer of about 0.05～about 0.50 weight %; The surfactant of about 0.1～about 1.0 weight %; Biocides with about 0.01～about 1.50 weight %.More preferably, the design of the prescription of surface-treated layer 20 comprises the water of about 35～about 40 weight %; The filler of about 45～about 55 weight %; The TiO of about 2～about 5 weight %
2The latex of about 3～about 8 weight %; The dispersing agent of about 0.50～about 1.00 weight %; The thickener of about 0.01～about 0.15 weight %; The defoamer of about 0.05～about 0.20 weight %; The surfactant of about 0.1～about 0.5 weight %; Biocides with about 0.01～about 1.10 weight %.Further preferably, the design of the prescription of surface-treated layer 20 comprises the water of about 35～about 38 weight %; The filler of about 52～about 57 weight %; The TiO of about 2.50～about 3.75 weight %
2The latex of about 5～about 8 weight %; The dispersing agent of about 0.75～about 1.00 weight %; The thickener of about 0.05～about 0.10 weight %; The defoamer of about 0.10～about 0.15 weight %; The surfactant of about 0.20～about 0.50 weight %; Biocides with about 0.025～about 0.60 weight %.
On the other hand, the invention provides the method that manufacturing does not contain the sound-absorbing brick of formaldehyde.Described method comprises the described sound-absorbing brick plate core 10 of preparation and surface treating composition is coated on plate core 10 formation surface-treated layers 20.Described surface treating composition and surface-treated layer 20 comprise that the latex binder that does not contain formaldehyde does not contain the biocides of formaldehyde with one or more.
Following examples further specify the present invention, can not be interpreted as limiting its scope by any way certainly.
Embodiment
In the present embodiment, prepared multiple sound-absorbing brick and tested formaldehyde emission according to standard schedule.The results are shown in embodiment 1-7.Embodiment 1 and 2 provides the formaldehyde emissions data of two kinds of standard sound-absorbing bricks.Embodiment 3 provides the formaldehyde emissions data of the sound-absorbing brick that comprises plate core and fire-resistant back coating.Embodiment 4 provides the formaldehyde emissions data of sound-absorbing brick that comprise plate core, fire-resistant back coating and comprise the surface-treated layer of the latex that does not contain formaldehyde of the present invention, and the wherein said latex that does not contain formaldehyde comprises the biocides that does not contain formaldehyde.Embodiment 5 provides the formaldehyde emissions data as embodiment 4 described sound-absorbing bricks, and just the sound-absorbing brick of embodiment 5 also comprises the another kind of biocides that adds in the surface treating composition.Embodiment 6 and 7 provides of the present invention and has comprised plate core, fire-resistant back coating and comprise the latex that does not contain formaldehyde and the formaldehyde emissions data of the sound-absorbing brick of the surface-treated layer of the biocides that does not contain formaldehyde.
Table 1 PARA FORMALDEHYDE PRILLS(91,95) discharge value quantitatively
aThis plate core comprises rock wool, starch, plaster, boric acid and SHMP, and makes (Frost by casting process
).
bThis fire-resistant back coating comprises that water and fire retardant (can adopt Pyrobreak
TMEX18-USG).
B+This fire-resistant back coating comprises that water, fire retardant (can adopt Pyrobreak
TMEX18-USG) and biocides (can adopt Zinc
Emulsion).
cThe latex that uses among this embodiment is the copolymer of vinyl and acrylic compounds, can adopt HP 31-316.
dThe biocides that uses among this embodiment is
D3T and
The combination of TK100.
eThe latex that does not contain formaldehyde that uses among this embodiment is the copolymer of vinyl and acrylic compounds, can adopt HP31-316NF.The latex that does not contain formaldehyde of described preparation comprises 1, and the 2-benzisothiazole-3-ketone can be provided as
GXL (ARCH Chemicals).
fThe biocides in being included in the latex that does not contain formaldehyde, no longer in surface treating composition, add other biocides among this embodiment.
gThe described biocides that does not contain formaldehyde that uses among this embodiment is 1, and the combination of 2-benzisothiazole-3-ketone and methyl-4-isothiazoline-3-ketone can be adopted
MBS (Acti-Chem).
Result among the embodiment 3 show the combination of fire-resistant back coating and plate core be limit herein do not contain formaldehyde, that is to say that the discharge value of the sound-absorbing brick of present embodiment is lower than 2 μ g/m
3But, be lower than the lower limit of quantitation in the standard schedule.Embodiment 4 shows that the sound-absorbing brick that comprises fire-resistant back coating, the latex that does not contain formaldehyde and plate core is the formaldehyde that do not contain defined herein.Embodiment 5,6 and 7 shows that the sound-absorbing brick of the biocides that does not contain formaldehyde that especially comprises a kind of component that is used as above-mentioned surface-treated layer also is the formaldehyde that do not contain defined herein.And then, in the table 1 embodiment 3-7 shown the combination of the component that is used to make sound-absorbing brick of the present invention also be limit herein do not contain formaldehyde.Embodiment 3-7 has also illustrated preferred implementation of the present invention, and wherein the formaldehyde emission of those bricks is lower than about 1 μ g/m
3
All lists of references that comprise publication, patent application and patent cited herein all are incorporated into same scope by reference, are indicated as being surely herein by reference and wholely merge and propose as each list of references coverlet uniqueness.
Understand preferred implementation of the present invention specifically at this, comprise enforcement known for inventor optimal mode of the present invention.By reading above-mentioned explanation, the change of these preferred implementations will become apparent for those of ordinary skills.The inventor wishes that the technician suitably uses these changes, and the inventor wishes to adopt the mode beyond this offers some clarification on to implement the present invention.Therefore, the present invention includes all modifications and the equivalent of theme described in the application appended claim that law allowed herein.In addition, unless herein in addition explanation or with the obvious contradiction of context, in all possible change, any combination of above-mentioned key element all is included among the present invention.
Claims (22)
1, a kind of sound-absorbing brick comprises plate core and surface-treated layer, and wherein said surface-treated layer comprises latex binder and at least a biocides that does not contain formaldehyde that does not contain formaldehyde.
2, sound-absorbing brick as claimed in claim 1, wherein said biocides are isothiazoline-3-ketone.
3, sound-absorbing brick as claimed in claim 2, wherein said sound-absorbing brick comprises 1-hydroxyl-2 (1H)-pyrithione zinc; Described plate core comprises the fiber that is selected from the group that is made of glass fiber, mineral wool fiber and composition thereof, and wherein said mineral wool fiber is selected from the group that is made of mineral wool, rock wool, basalt wool and composition thereof; Wherein said plate core further comprises the composition of selecting from the group that is made of calcium sulfate material, boric acid, kaolin, guar gum, calgon and composition thereof; Described sound-absorbing brick comprises the backing of selecting from the group that paper, unbleached paper and kraft/aluminium foil by bleaching constitute; And described surface-treated layer comprises clay filler, pearl filler, TiO
2, dispersing agent and thickener.
4, sound-absorbing brick as claimed in claim 1, wherein said biocides is 1, the combination of 2-benzisothiazole-3-ketone and methyl-4-isothiazoline-3-ketone.
5, sound-absorbing brick as claimed in claim 1, the wherein said synthetic or natural latex binder that does not contain formaldehyde is:
Thermoplasticity acrylic acid synthesizing base polymer emulsion;
The trimer of ethene, vinyl chloride and vinylacetate;
The copolymer of styrene and acrylic compounds;
The copolymer of vinylacetate and acrylic compounds;
The homopolymers of polyvinyl acetate;
Epoxy polymer emulsion;
Polyurethane;
Polyvinyl alcohol;
Starch;
The protein in soybean source; Or their combination.
6, sound-absorbing brick as claimed in claim 1, wherein said sound-absorbing brick does not contain formaldehyde.
7, sound-absorbing brick as claimed in claim 6, the formaldehyde of wherein said sound-absorbing brick discharges or discharge value is lower than about 1 μ g/m
3Quantitatively limit.
8, a kind of sound-absorbing brick that comprises plate core and surface-treated layer, wherein said surface-treated layer comprised before drying:
The solvent of about 30～about 50 weight %;
The filler of about 40～about 60 weight %;
The TiO of about 2～about 15 weight %
2
The latex that does not contain formaldehyde of about 2～about 20 weight %;
The dispersing agent of about 0.25～about 1.00 weight %;
The thickener of about 0.01～about 1.00 weight %;
The surfactant of about 0.10～about 1.00 weight %;
The defoamer of about 0.05～about 0.50 weight %; With
The biocides that does not contain formaldehyde of about 0.01～about 1.50 weight %.
9, sound-absorbing brick as claimed in claim 8, wherein said biocides are isothiazoline-3-ketone.
10, sound-absorbing brick as claimed in claim 8, wherein said biocides is 1, the combination of 2-benzisothiazole-3-ketone and methyl-4-isothiazoline-3-ketone.
11, sound-absorbing brick as claimed in claim 8, wherein said plate core comprises the fiber of selecting from the group that is made of glass fiber, mineral wool and composition thereof, wherein said mineral wool fiber is selected from the group that is made of mineral wool, rock wool, basalt wool and composition thereof; Wherein said plate core further comprises the composition of selecting from the group that is made of calcium sulfate material, boric acid, kaolin, guar gum, calgon and composition thereof; Described sound-absorbing brick comprises the backing of selecting from the group that paper, unbleached paper and kraft/aluminium foil by bleaching constitute.
12, sound-absorbing brick as claimed in claim 8 further comprises 1-hydroxyl-2 (1H)-pyrithione zinc.
13, sound-absorbing brick as claimed in claim 8, wherein said sound-absorbing brick does not contain formaldehyde.
14, sound-absorbing brick as claimed in claim 13, the formaldehyde of wherein said sound-absorbing brick discharges or discharge value is lower than about 1 μ g/m
3Quantitatively limit.
15, a kind of method of making the sound-absorbing brick, wherein said method comprises preparation sound-absorbing brick plate core and to described plate core coated surfaces processing layer, wherein said surface-treated layer comprises synthetic or natural latex binder and at least a biocides that does not contain formaldehyde that does not contain formaldehyde.
16, sound-absorbing brick as claimed in claim 15, wherein said plate core comprises the fiber of selecting in the group that is made of glass fiber, mineral wool and composition thereof, and wherein said mineral wool fiber is selected from the group that is made of mineral wool, rock wool, basalt wool and composition thereof; Wherein said plate core further comprises the composition of selecting from the group that is made of calcium sulfate material, boric acid, kaolin, guar gum, calgon and composition thereof; Described sound-absorbing brick comprises backing, and wherein said backing is selected from the group that is made of paper, unbleached paper and the kraft/aluminium foil bleached.
17, the method for manufacturing sound-absorbing brick as claimed in claim 15, wherein said surface-treated layer further comprises 1-hydroxyl-2 (1H)-pyrithione zinc.
18, the method for manufacturing sound-absorbing brick as claimed in claim 15, wherein said surface-treated layer further comprises clay filler, pearl filler, TiO
2, dispersing agent and thickener.
19, the method for manufacturing sound-absorbing brick as claimed in claim 15, the wherein said synthetic or natural latex binder that does not contain formaldehyde is:
Thermoplasticity acrylic acid synthesizing base polymer emulsion;
The trimer of ethene, vinyl chloride and vinylacetate;
The copolymer of styrene and acrylic compounds;
The copolymer of vinylacetate and acrylic compounds;
The homopolymers of polyvinyl acetate;
Epoxy polymer emulsion;
Polyurethane;
Polyvinyl alcohol;
Starch;
The protein in soybean source; Or their combination.
20, the method for manufacturing sound-absorbing brick as claimed in claim 19, the wherein said biocides that does not contain formaldehyde is 1,2-benzisothiazole-3-ketone, methyl-4-isothiazoline-3-ketone, or their combination.
21, the method for manufacturing sound-absorbing brick as claimed in claim 15, wherein said sound-absorbing brick does not contain formaldehyde.
22, the method for manufacturing sound-absorbing brick as claimed in claim 21, the formaldehyde of wherein said sound-absorbing brick discharges or discharge value is lower than about 1 μ g/m
3Quantitatively limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070093.5A CN103790249B (en) | 2006-05-31 | 2007-05-30 | Acoustical tile |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80975706P | 2006-05-31 | 2006-05-31 | |
| US60/809,757 | 2006-05-31 | ||
| US11/747,141 | 2007-05-10 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410070093.5A Division CN103790249B (en) | 2006-05-31 | 2007-05-30 | Acoustical tile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101454517A true CN101454517A (en) | 2009-06-10 |
Family
ID=40735904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800198260A Pending CN101454517A (en) | 2006-05-31 | 2007-05-30 | Acoustical tile |
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| Country | Link |
|---|---|
| CN (1) | CN101454517A (en) |
| ZA (1) | ZA200809665B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213815A (en) * | 2013-05-31 | 2014-12-17 | 利昌工程建材有限公司 | Degradable, environment-friendly and fireproof wooden door plank and environment-friendly and fireproof wooden door |
| CN110306711A (en) * | 2014-04-25 | 2019-10-08 | Usg内部有限责任公司 | Multilayer ceiling brick |
| CN113087542A (en) * | 2021-04-12 | 2021-07-09 | 马鞍山市绿科环保科技有限公司 | High-hardness sound-insulation brick produced by using casting waste sand and preparation method thereof |
-
2007
- 2007-05-30 CN CNA2007800198260A patent/CN101454517A/en active Pending
-
2008
- 2008-11-12 ZA ZA200809665A patent/ZA200809665B/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213815A (en) * | 2013-05-31 | 2014-12-17 | 利昌工程建材有限公司 | Degradable, environment-friendly and fireproof wooden door plank and environment-friendly and fireproof wooden door |
| CN104213815B (en) * | 2013-05-31 | 2017-11-03 | 利昌工程建材有限公司 | Degradable environment protection fire resisting timber door plate and environmental-protection fireproof timber |
| CN110306711A (en) * | 2014-04-25 | 2019-10-08 | Usg内部有限责任公司 | Multilayer ceiling brick |
| CN113087542A (en) * | 2021-04-12 | 2021-07-09 | 马鞍山市绿科环保科技有限公司 | High-hardness sound-insulation brick produced by using casting waste sand and preparation method thereof |
| CN113087542B (en) * | 2021-04-12 | 2023-04-07 | 马鞍山市绿科环保科技有限公司 | High-hardness sound-insulation brick produced by using casting waste sand and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200809665B (en) | 2010-04-28 |
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Application publication date: 20090610 |