KR100968526B1 - A thermall or acoustic insulation product, and production method thereof - Google Patents

Abstract

The present invention relates to insulation and / or sound insulation products made from mineral fibers and for use at temperatures above 150 ° C., in particular between 200 and 500 ° C., at temperatures above 700 ° C. for rock fibers. The product of the invention contains a binder obtained through at least 1%, at least 2% or even at least 4% by weight of sizing, the resin or resin mixture having a EEW of 150 to 2000, preferably at least 160 and / or And essentially at least one epoxy type resin of at most 700 or at least 170 and / or at most 300.

Description

Insulation or soundproofing products, and methods for their preparation {A THERMALL OR ACOUSTIC INSULATION PRODUCT, AND PRODUCTION METHOD THEREOF}

The present invention relates to products based on mineral fibers, in particular for example buildings or equipment, which can be used at high temperatures (above 150 ° C., in particular 200-500 ° C., or even up to 700 ° C., above for certain mineral fibers). It relates to a method of using a new type of synthetic resin to produce products based on glass fibers or rock fibers, such as mineral fiber mats used for insulation and / or sound insulation.

Most barrier materials based on mineral fibers contain a binder which ensures the mechanical integrity of the material, ie binds the fibers together. This binder is unbonded, more brittle, and thus uniformly throughout the fiber to prevent the formation of fiber islands surrounded by binder gangue in the fiber aggregates that cause more dust. It must be distributed.

It is known to use phenoplasts (phenol-formaldehyde) or aminoplast (melamine-formaldehyde or urea-formaldehyde) thermosetting resins. The most commonly used resins are the resols, ie condensation products of aldehydes (primarily formaldehyde) in the presence of alkali or alkaline earth catalysts, and phenols with empty ortho and para positions. Such resins are used in sizing compositions comprising water, a diluent, urea that reduces the amount of free formaldehyde and also acts as a binder, and various additives such as oils, ammonia water, colorants and fillers.

For applications in which mineral fiber-based products can undergo high temperatures, in particular at least 150 ° C, in particular at least 200 ° C, or at least 300 ° C and sometimes at least 400 ° C, conventional phenoplasmic binders are decomposed and undesirable. Gaseous emissions, in particular formaldehyde, methyl isocyanate (hereinafter referred to as MIC) and / or isocyanic acid (hereinafter referred to as ICA) and / or other volatile organic compounds (hereinafter referred to as VOC). It is not satisfactory because it is generated. In fact, MIC and ICA exhaust gases begin to be detected at 150 ° C and above, and when the products made with conventional phenoplasmic binders are heated, they increase at 200 ° C and above.

In order to reduce the MIC exhaust gas with a phenoplast type resin, the applicant has described a sizing composition based on a phenol formaldehyde resin substantially free of urea or urea derivatives, as described in European Patent Application EP 1 022 263. It has been suggested to use. Such solutions allow the MIC exhaust gases which are likely to occur when the product is heated to be greatly reduced, but in comparison with conventional sizing compositions (eg of the type described in Applicant's patent EP 0 480 778) It is not very satisfactory because it does not capture well the formaldehyde released during the production.

Other means of solving the exhaust gas problem are known, which is to use inorganic binders instead of binders based on organic resins. These inorganic binders advantageously solve the undesirable exhaust gas problem of up to 500 ° C., or up to 700 ° C., but have significant drawbacks that limit their use. Binders based on aluminum phosphate, particularly those sold under the trade name LEGAREFF by the Italian company Poletto, are suitable for this purpose.

First of all, such products are sometimes difficult to manufacture because they are known to have a very high tendency to adhere to lines, especially conveyor belts.

Secondly, the mechanical quality of the barrier products obtained with these binders is much worse than the product quality obtained with the phenoplast binder. This is because the inorganic binder is known to be sensitive to moisture and it is often observed that the product swells during storage. In addition, significant delamination is observed in the product and there is a risk that some of the product may fall off during handling.

The use of the fiber barrier material which can withstand the high temperatures described above is, for example, in the field of ovens (especially household electric ovens), the field of thermal insulation (especially the insulation of pipes with shell-type barriers) and the field of flame protection (e.g. It should be emphasized that it occurs in fire doors, transport and nuclear fields.

In order to produce the final product, it is clear that this use requires the processing, shaping, and conditioning steps of the barrier product used.

Using barrier products with inorganic binders makes the process much more difficult and scrap rates higher than barrier products with organic resin-based binders.

It is an object of the present invention to select a type of synthetic organic resin that produces a product based on mineral fibers, which product is at least 150 ° C., in particular 200-500 ° C., or even up to 700 ° C., in the case of rock wool While it can be used at the above temperatures, it significantly reduces undesirable exhaust gases compared to known solutions of the prior art.

The use of barrier products based on glass fibers, in particular barrier products with soda lime borosilicate compositions, is limited to temperatures of about 500 ° C., while generally rock wool containing low content alkali metals up to 750 ° C. or It should be noted that it can be used at higher temperatures.

There are many criteria for selecting a binder and these criteria fall within several categories, but it should be remembered that the binder must, among other things, adhere correctly to the glass.

First of all, it is most important that the binder be rheologically suitable for the fiber manufacturing process. It is pointed out that glass fibers are generally made through spinners injected with a continuous flow of molten glass, with the axes oriented vertically, without the need to go into details that are irrelevant herein. The glass is released to the peripheral wall of the spinner, where the glass exits in the form of filaments through a large number of small holes, which are tapered and transported downward through a hot, high pressure gas stream. The fibers thus obtained are collected in a gas permeable conveyor to form a rather thick blanket depending on the speed of the conveyor. In the case of rock wool, fibers are generally produced using spinners having a horizontal axis.

The sizing composition must later be dispersed over the fibers so prepared in order to be able to obtain an elastic fiber blanket, preferably at the interfiber junction point. Therefore, it is preferable to spray the sizing composition while the fibers are still individual fibers, ie before the blanket is formed. Therefore, the sizing composition is sprayed into a fiber collection hopper, under the burner, which forms a gas attenuation stream. The result of this selection is the elimination of the use of flammable and / or contaminating organic solvents to prepare sizing compositions, which increases the risk of fire and / or contamination of the collection hopper. In addition, the resin that acts as a binder must not cure too quickly before the desired molding operation.

Secondly, this curing should not be too fast, but should not be too long (risk of pre-gelling) because complete curing must be completed in a time suitable for fast production speed after staying in a high temperature oven (about 250 ° C.).

Finally, the resin, and the method of using the resin, are relatively inexpensive, suitable for fiberizing glass, and must not directly or indirectly form undesirable or contaminating effluents.

This object is achieved by using a sizing composition, wherein the resin of the sizing composition consists essentially of at least one epoxy resin. The epoxy resin selected by the present invention has a EEW value (a parameter known to those skilled in the art, corresponding to the epoxy equivalent, the resin weight in grams per mole of epoxy functional group), of 150 to 2000, preferably at least 160 and / or maximum 700, or at least 170 and / or a maximum of 300 resins. This is because the inventors have proved that such resins advantageously produce very low levels of exhaust gases and are suitable for known methods of spraying sizing compositions used in the mineral fiber industry for barrier fibers. Insulation and / or sound insulation products according to the invention comprise at least 1% by weight, or at least 2% by weight, even at least 4% by weight of a cured binder in the sizing composition.

Thus, the ease of use of the organic resin (water solubility, emulsification, or dispersibility in water and thus ease of spraying) is advantageously obtained. Blocking products made using such resins can be easily handled and molded. Surprisingly, such products produce little or no undesirable gas during use above 150 ° C., in particular between 200 and 500 ° C. or even up to 700 ° C., in the case of rock wool.

The term "undesired gas" is understood in particular to mean formaldehyde, MIC, ICA and other volatile organic compounds (VOCs).

For the purposes of the present invention, a gas is released by a test piece of a barrier product comprising a binder, in particular for at least 15 minutes, preferably 20 minutes, in particular mineral fiber heated to 350 ° C. for 1 hour or more. The amount is characterized in that it represents a blocking operation for the intended use. This is because for one hour at 350 ° C., almost all undesirable gases can be considered to have been discharged. The amount of exhaust gas normalized to the weight of the product tested is measured. If the amount measured in the test is less than 50 mg / kg, preferably less than 20 mg / kg, even less than 10 mg / kg, it will be considered that little undesirable gas is emitted.

With the resin according to the invention, it can be used at 150 ° C. or higher, in particular 200 to 500 ° C. or even up to 700 ° C., in the case of rock wool, at least 1% by weight, or at least 2% by weight, even 4% by weight. At least 15 minutes, while heated to 350 ° C. for at least 15 minutes, formaldehyde (less than 50 mg / kg, in particular less than 20 mg / kg, even less than 15 mg / kg), Insulating and / or soundproofing products based on mineral fibers are obtained, which releases methyl isocyanates (MIC) of less than 50 mg / kg, in particular less than 20 mg / kg and even less than 10 mg / kg.

The sizing composition according to the present invention comprises, in water, a resin or resin mixture consisting mostly of at least one epoxy resin having an EEW value of from 150 to 2000, preferably at least 160 and / or at most 700, or 170 and / or 300, It is obtained by diluting or emulsifying with the nonvolatile amine curing agent and including the additive calculated in parts by weight relative to 100 parts of the dry resin. Preference is given to adding 0.1 to 2 parts by weight of silane and / or 0 to 15 parts by weight of mineral oil, calculated on 100 parts of dry resin.

The amine curing agent is particularly characterized by the amine / H equivalents defined by the MW ratio (molecular weight of amines relative to active hydrogen water). Preferred amines have an amine / H equivalent represented by a "NH number" of 20 to 300.

Among the epoxy resins of the present invention, the glycidyl ether type resins described in the applicant's European patent EP 0 369 848 can be exemplified.

Particularly advantageous are the epoxy resins described in application EP 0 369 848. In this application, such resins are described as advantageous because they do not form undesirable or contaminated effluents, in particular, directly or indirectly during fiberization and subsequent oven treatment (about 250 ° C.). However, such resins may be used above 150 ° C., in particular between 200 and 500 ° C., or even up to 700 ° C., in the case of rock wool, and in particular may produce products with very little MCI and ICA emissions. Nobody expected.

Among the epoxy resins of the glycidyl ether type, the following resins exemplified by the trade name were found to be particularly suitable.

Emulsion resins from Resolution: EPIREZ 3510 W 60 (EEW = 185 to 215), EPIREZ 3515 W 60 (EEW = 225-275) and EPIREZ 3522 W 60 (EEW = 615-715),

Resin to be emulsified by Resolution: EPICOTE 828 (EEW = 184 to 190), EPICOTE 255 (EEW = 193 to 205),

Resins to be emulsified by Dow Chemical: DER 330 (EEW = 176-185) and DER 331 (EEW = 182-192).

Other epoxy resins of the glycidyl ether type are particularly advantageous because these resins can impart improved heat and fire resistance to the product. These are halogenated glycidyl ether type epoxy resins, in particular derivatives of dibromophenyl glycidyl ether such as the following compounds.                 

Dibromophenyl glycidyl ether, 2-methyl-4,6-dibromophenyl glycidyl ether, 4-methyl-2,6-dibromophenyl glycidyl ether, 2-butyl-4,6 -Dibromophenyl glycidyl ether, 4-isooctyl-2,6-dibromophenyl glycidyl ether, 2-phenyl-4,6-dibromophenyl glycidyl ether, 4-cumyl-2 , 6-dibromophenyl glycidyl ether.

Other classes of epoxy resins also provide excellent results. The other series of epoxy resins are, for example, novolac epoxy resins such as resin EPIREZ 5003-W55 (EEW = 195 to 215).

The use of the epoxy resin mixtures described above is also possible and advantageous.

As for the amine used as the curing agent, aliphatic, cycloaliphatic or aromatic amines, or imidazoles, polyfunctional hydrazides or dicyandiamides can be used.

Examples of the present invention include the following.

Aliphatic amines: diethylenetriamine, triethylenetetramine, tetraethylene pentamine (TEPA) (such as EPICURE 3295 from Resolution), polyglycoldiamine and m-xylenediamine,

Cycloaliphatic amines: 1,3-bis (aminomethyl) -cyclohexane, 4,4-diaminocyclohexylmethane, methanediamine and 2,6-diaminocyclohexanol,

Aromatic amines: metaphenylenediamine, diaminodiphenylsulfone and diethyltoluenediamine,

Imidazoles such as imidazole, 1-methylimidazole, 2-methylimidazole, 2-undecylimidazole, 2-ethyl-4-methylimidazole and 2-phenylimidazole.

The invention also relates to thermally insulating and / or soundproofing products which are based primarily on mineral fibers, which can be used at temperatures above 150 ° C., in particular between 200 and 500 ° C., or even up to 700 ° C., at higher temperatures for rock wool, and At least 1 wt%, or at least 2 wt%, even 4 wt% or more of the binder, wherein the resin or resin mixture of the sizing composition has an EEW value of 150 to 2000, preferably at least 160 and / or at most 700, Or at least one epoxy type resin of at least 170 and / or at most 300.

It should be noted that after the binder has cured, the epoxy functional groups react during curing and amine bridges and alcohol functional groups are observed in the binder coating the fibers.

Also, if no colorant is added, the product is white in color.

The insulation and / or sound insulation products according to the invention also comprise mineral fibers, in particular glass fiber fabrics, the grammage of which is located on at least one side of the outer surface of the barrier product, for example from 10 to 300 g / m. It is advantageous to be ^two . The fabric comprises at least 1 wt%, or at least 2 wt%, even at least 4 wt% of the binder obtained from the sizing composition, the resin or resin mixture having a EEW value of 150 to 2000, preferably at least 160 and / or maximum It is preferred to consist mostly of 700, or at least one epoxy-type resin of at least 170 and / or at most 300.

In addition, the present invention also provides a process for producing thermally insulating and / or soundproofing products based on mineral fibers which can be used at temperatures above 150 ° C., in particular between 200 and 500 ° C., or even up to 700 ° C., in the case of rock wool. In regard to this method,

a) preparing a sizing composition, the sizing composition substantially consisting of a resin or resin mixture, at least one amine curing agent and an additive, wherein the resin or resin mixture has a substantially EEW value of from 150 to 2000, preferably At least 160 and / or at most 700, or at least 170 and / or at least 300, wherein the additive is in particular from 0.1 to 2% of silane and in particular from 0 to 15% of mineral oil ( Sizing composition manufacturing step, calculated by weight based on 100 parts of dry resin,

b) fiberizing the molten mineral composition, in particular via an internal centrifugation process (especially the vertical axis of the spinner for glass fibers) or an external centrifugation process (especially the horizontal axis for rock wool), and spraying the fiber with the sizing composition likened in step a) Making a step,

c) curing the sizing composition, particularly in an oven at about 250 ° C., to form a compressible fiber blanket

Is done.

In a preferred method of carrying out the process according to the invention, the sizing composition of step a) comprises a water dispersible epoxy resin of glycidyl ether type and an amine curing agent having a flashpoint of at least 150 ° C.

Advantageously, in the process according to the invention, the at least one epoxy resin described above is glycidyl ether having a curing index (n) of less than 1 and preferably less than 0.2.

According to another preferred practice, the sizing composition of step a) comprises a novolak type water dispersible epoxy resin.

It is clear that the mixture of the above-mentioned resins is within the scope of the present invention.

The molar equivalent NH of the at least one curing agent is less than 100 g.

According to a preferred practice, at least one curing agent is based on dicyandiamide (DCN).

The invention also relates to a method of using the method for the production of barrier products having a density of 4 to 200 kg / m ³ .

The invention also relates to temperatures of 150 ° C. or higher, in particular 200 to 500 ° C., or even up to 700 ° C. and higher for rock wool, especially in the walls of facilities for use in ovens, pipes, refractory parts, transportation facilities and the nuclear industry. A method of using the above-described product and / or the product produced by the above method for the blocking wall of an object which can be heated with a furnace.

Another feature of the present invention is to provide a sizing composition (A, B, C, D, E) corresponding to the following formulation (generally, the resin and the catalyst or curing agent represent 100 parts of the formulation and the additives are expressed in additional parts by weight). The comparative tests performed with reference to the following are described in detail below.

 Comparative Examples A, B and C:

Sizing Composition A:

Phenolic resin 80 parts

20 elements

0.5 parts of aminosilane

9 parts of mineral oil

Ammonium sulfate 3 parts

6 parts of ammonia water (20% solution)

The phenolic resin used in the sizing composition A is of the type described in patent application EP 0 148 050 and corresponds to that used in the manufacture of standard barrier products.

Sizing Composition B:

100 parts of phenol resin

Element Part 0

0.5 parts of aminosilane

9 parts of mineral oil

Ammonium sulfate 3 parts

6 parts of ammonia water (20% solution)

This sizing composition is of the type described in EP 1 022 263 (Example 1).

Sizing Composition C:

100 parts of inorganic binder mainly composed of aluminum phosphate

0.5 parts of aminosilane

9 parts oil

Examples D and E according to the invention:

Sizing Composition D:

Resolution epoxy resin EPIREZ 3510W60 88 parts

12 parts of DCN (dicyandiamide) curing agent

2,4,6-tris (dimethylaminomethyl) -phenol accelerator 1 part

0.5 parts of aminosilane

9 parts oil

Sizing Composition E:

Epoxy resin: 80 parts of Resolution EPIREZ 3510W60

Curing agent: 20 parts of TEPA

0.5 parts of aminosilane

9 parts oil

The barrier product was prepared under the same fiberization conditions as the sprayed sizing composition such that the barrier product contained 4.5 wt% binder.

Emissions from these products were measured.

The measurement protocol was as follows. That is, this sizing composition was sprayed onto the mineral wool fibers, and the spray amount was the same for all test pieces. A 1 g sample of each specimen (after binder curing) was heated for 1 hour in a tube furnace at 350 ° C. with an air flow rate of 2 L / min. The amount of methyl isocyanate (MIC) and ICA carried through the air to the outlet of the kiln was measured according to OSHA No. 54 standard {capturing the MIC with a solid trap filled with reactants catching MIC and ICA, then containing the same reactant Capture ICA with one safety bubbler, and finally quantitatively measure MIC and ICA by HPLC with UV fluorescence detection. Formaldehyde emissions were measured as the amount of formaldehyde emitted by the finished product heated to 350 ° C. in a tube kiln. 10 g of test pieces were placed in a tube kiln at 350 ° C., and a gas stream of reconstituted air passed through the test pieces for 1 hour. Exhausted formaldehyde was captured in two successive bubblers, which were filled with 50 ml of HPLC-quality water. Formaldehyde of each bubbler was measured by the Lange method and the results were expressed in formaldehyde (mg) per kilogram of product. The test results are shown in Table 1.

Sizing
Composition Formaldehyde among products
(mg / kg) MIC of products
(Methyl isocyanate)
(mg / kg) ICA products
(Isocyanate)
(mg / kg) A 60 90 140 B 110 18 20 C 8 2 2 D 8 1.5 10 E 11 2 8

The results obtained with the product according to the invention are noteworthy and it is clear that they are substantially very different from the prior art with organic binders.

The reason is that products obtained using sizing compositions (D or E) release less than 20 mg / kg formaldehyde, less than 10 mg / kg MIC and less than 20 mg / kg ICA, whereas known phenolic plasts This is because the solution based on does not cause the formaldehyde exhaust gas to decrease below 50 mg / kg and the MIC exhaust gas below 10 mg / kg.

The results are obtained using the solution of the invention, which is very similar to that obtained with an inorganic binder (example C) with respect to the exhaust gas.

As described above, the disadvantage of the inorganic binder is related to the mechanical properties of the product obtained with the inorganic binder, which is much inferior to the product obtained with the organic binder and deteriorates with wet aging.

To illustrate this point, the tensile strength measured after manufacture ( _manufactured by TS) and the accelerated aging test (aging product for 15 minutes in an autoclave with a temperature of 107 ° C. and a relative humidity of 100%). Comparative tests are provided in Table 2, where (TS _{15 'autoclave} ) is shown for different product densities (about 10 kg / m ³ and 35 kg / m ³ ).

Tensile strength or split strength (TS) was measured in accordance with ASTM C686-71T specifications on ring specimens cut through stamping from products taken after the curing step.                 

The ring specimen was placed between two cylindrical mandrels of the tester. One of the mandrels was moved at a constant speed to measure the ring closing force (F) in grams. Tensile strength (TS) is defined as the F / M ratio, where M is the mass of the specimen in grams.

The ring test piece used was a torus having a length of 122 mm and a width of 46 mm, the radius of curvature of the outer edge cut was 38 mm, and the radius of curvature of the inner edge cut was 12.5 mm.

Sizing composition Density (kg / m ³ ) TS _{manufacturing} TS _{15 'autoclave} A 11 230 114 A 35 350 175 C 32 160 40 D 12 220 80 D 35 370 140

The results of the mechanical test, using the product according to the present invention (Example D), are substantially similar to the results using the phenophate resin (Example A) after preparation and are very satisfactory after the accelerated aging test. Prove it by getting

These results indicate that the mechanical properties of the product according to the invention are better than those of products made with inorganic binders (example C) after manufacture (twice the results) and after accelerated aging tests (three to four times the results). It is very good.

As mentioned above, the present invention can be used at temperatures above 150 ° C., in particular 200 to 500 ° C., or even up to 700 ° C., in the case of rock wool, which is undesirable compared with known solutions of the prior art. It is used to make products based on mineral fibers, which greatly reduce the

Claims (33)

As a method of using an insulation or sound insulation products containing mineral fibers at 150 ℃ or more, The product comprises at least 1% by weight of cured organic resin, When heated to 350 ° C. for at least 15 minutes, it releases less than 50 mg / kg of formaldehyde (in the product) and less than 50 mg / kg of methyl isocyanate (MIC). How to use. A method of using an insulating or soundproof product comprising the mineral fiber according to claim 1 above 150 ° C, The insulation or sound insulation product comprises at least 1% by weight of a binder obtained from a sizing composition, and the resin or resin mixture of the sizing composition is made of one or a plurality of epoxy resins having an EEW value of 150 to 2000. Method, consisting of insulation or sound insulation products. The thermal insulation or sound insulation product further comprises a web of mineral fibers, the grammage of which is located on at least one of the outer surfaces of the thermal insulation or sound insulation product. 300 g / m ² , wherein the fabric comprises at least 1% by weight of a binder obtained from a sizing composition, and the resin or resin mixture of the sizing composition consists of one or a plurality of epoxy resins having an EEW value of 150 to 2000. A method of using an insulating or soundproof product, characterized in that the. The method according to claim 1 or 2, A method of using insulation or sound insulation products used to block walls of ovens, pipes, refractory parts, transportation facilities, and equipment, intended for use in the nuclear industry heated to temperatures above 150 ° C. The method according to claim 1 or 2, The insulation or sound insulation product, a) preparing a sizing composition, wherein the sizing composition consists of water, a resin or resin mixture, one or a plurality of amine curing agents and additives, the resin or resin mixture having one or more EEW values from 150 to 2000 Consisting of a water dispersible epoxy resin, wherein the additive (calculated by weight for 100 parts of dry resin) comprises 0.1 to 2% silane and greater than 0% and less than 15% mineral oil; , b) fiberizing the melted mineral composition via an internal centrifugation process or an external centrifugation process, and spraying the fibers with the sizing composition likened in step a); c) curing the sizing composition in an oven at 250 ° C. to form a compressible fiber blanket Manufactured through a method consisting of, the method of using insulation or sound insulation products. 6. The thermal insulation or insulation according to claim 5, wherein the resin of the sizing composition of step a) comprises a glycidyl ether type water dispersible epoxy resin and an amine curing agent having a flashpoint of 150 ° C. or higher. How to use soundproof products. The method of claim 5, wherein the one or more epoxy resins are glycidyl ethers having a curing index (n) of less than 1. 7. 6. The method of claim 5, wherein one or the plurality of resins of the sizing composition of step a) comprises a novolac type water dispersible epoxy resin. The method of claim 5, wherein the NH number of the one or a plurality of amine curing agents is 20 to 300. 7. The method of claim 9, wherein the one or a plurality of amine curing agents are selected from aliphatic amines, cycloaliphatic amines, aromatic amines, imidazoles, polyfunctional hydrazides and dicyandiamides (DCNs) or mixtures thereof. Method for using a heat insulation or sound insulation products, characterized in that. A method according to claim 1 or 2, characterized in that the density of the insulation or sound insulation product is 4 to 200 kg / m ³ . Insulation or sound insulation products usable above 150 ° C. comprising at least 1% by weight of a binder obtained from a sizing composition, wherein the EEW value of the resin or resin mixture of the sizing composition is from 150 to 2000. As The insulation or sound insulation product comprises a fabric of mineral fiber, the basis weight of which is located on at least one side of the outer surface of the insulation or sound insulation product, from 10 to 300 g / m ² , wherein the fabric is at least one weight obtained from the sizing composition. Insulation or sound insulation product comprising a binder of%, characterized in that the resin or resin mixture of the sizing composition consists of one or a plurality of epoxy resins having an EEW value of 150 to 2000. The method of claim 1, comprising at least 2% by weight of cured organic resin. The method of claim 1, comprising at least 4% by weight of cured organic resin. The method of claim 1, wherein less than 20 mg / kg of formaldehyde is released. The method of claim 1, wherein the release of formaldehyde less than 15 mg / kg. The method of claim 1, wherein less than 20 mg / kg of methyl isocyanate is released. The method of claim 1, wherein less than 10 mg / kg of methyl isocyanate is released. The method of claim 2, wherein the binder is at least 2% by weight. The method of claim 2, wherein the binder is at least 4% by weight. The method of claim 2, wherein the EEW value of the epoxy resin is between 160 and 700. The method of claim 2, wherein the EEW value of the epoxy resin is between 170 and 300. 4. The method of claim 3, wherein the mineral fiber is glass fiber. The method of claim 5 wherein the EEW value of the water dispersible epoxy resin is between 160 and 700. 7. The method of claim 5, wherein the EEW value of the water dispersible epoxy resin is between 170 and 300. 7. The method of claim 5, wherein the one or more epoxy resins are glycidyl ethers having a curing index (n) of less than 0.2. The heat insulating or soundproofing product according to claim 12, wherein the mineral fiber is glass fiber. The insulation or sound insulation product according to claim 12, wherein the binder is at least 2% by weight. The insulation or sound insulation product according to claim 12, wherein the binder is at least 4% by weight. The insulation or sound insulation product according to claim 12, wherein the EEW value of the epoxy resin is between 160 and 700. The insulation or sound insulation product according to claim 12, wherein the EEW value of the epoxy resin is between 170 and 300. The method of claim 1, wherein the mineral fiber is rock fiber. The thermal insulation or sound insulation product according to claim 12, wherein the mineral fiber is rock wool.