High-temperature, low-emission mineral wool products

Abstract

The present invention is directed to a mineral fiber product comprising mineral fibers bound by a hardened binder composition.

Description

[Technical Field]

[0001] This invention relates to mineral fiber products and the use of mineral fiber products. [Background technology]

[0002] Mineral fiber products (also called mineral wool products) generally include mineral fibers such as glass fibers, ceramic fibers, basalt fibers, slag fibers, and stone fibers (rock fibers), also known as man-made vitreous fibers (MMVF), which are bonded together by a cured thermosetting polymer binder material. For use as thermal insulation or soundproofing products, bonded mineral fiber mats are usually manufactured by converting a molten material made from suitable raw materials into fibers using conventional methods, such as a spinning cup process or a cascade rotor process. The fibers are blown into a molding chamber, and while still hot and in the air, a binder solution is sprayed onto them, and they are randomly deposited on a moving conveyor as mats or webs. The fiber mats are then transferred to a curing oven, where heated air is blown into the mats to cure the binder and firmly bond the mineral fibers.

[0003] In the past, the selected binder resin was phenol-formaldehyde resin, which can be economically manufactured and extended with urea before use as a binder. However, in consideration of existing and proposed laws regarding the reduction or elimination of formaldehyde emissions, formaldehyde-free binders have been developed, such as polycarboxypolymer and polyol or polyamine-based binder compositions disclosed in, for example, European Patent Publication No. 583086, European Patent Publication No. 990727, European Patent Publication No. 1741726, U.S. Patent No. 5,318,990, and U.S. Patent Publication No. 2007 / 0173588.

[0004] Another group of non-phenol-formaldehyde binders are addition / elimination reaction products of aliphatic anhydrides and / or aromatic anhydrides with alkanolamines, as disclosed, for example, in International Publication No. 99 / 36368, International Publication No. 01 / 05725, International Publication No. 01 / 96460, International Publication No. 02 / 06178, International Publication No. 2004 / 007615 and International Publication No. 2006 / 061249. These binder compositions are water-soluble and exhibit excellent binding properties in terms of curing rate and curing density. International Publication No. 2008 / 023032 discloses a urea-modified binder of its type that provides mineral wool products with reduced water absorption.

[0005] Since some of the starting materials used in the manufacture of these binders are fairly expensive chemicals, there is an ongoing need to provide formaldehyde-free binders that can be manufactured economically.

[0006] A further benefit of previously known aqueous binder compositions from mineral fibers is that at least a large portion of the starting materials used in the manufacture of these binders are derived from fossil fuels. The consumer trend towards products made entirely or at least partially from renewable materials continues, and therefore, there is a need to provide binders for mineral wool that are made at least partially from renewable materials.

[0007] In high-temperature applications, mineral fiber products may release organic components derived from the binder as gases (off-gas) when used at such high temperatures, especially when used for the first time at such temperatures and / or when used at such temperatures over short time intervals. High-temperature applications include, for example, the use of mineral fiber products as insulation for pipes and equipment in power plants, where temperatures of 400°C to 500°C are not uncommon. Another high-temperature application is the use of mineral fiber products as insulation for furnaces, where the product may be used up to its maximum operating temperature, for example, 600°C, 650°C, or even 700°C.

[0008] A specific problem related to this is the release of harmful isocyanate (ICA) from mineral fiber products, particularly those containing urea-extended phenolic resins or other resins or binders containing urea. The addition of urea or other nitrogen-containing compounds is a conventional method to achieve better combustion performance and thermal stability at high temperatures in mineral wool products.

[0009] The chemical formula for isocyanic acid is HNCO. The majority of ICA emissions from mineral fiber products may be due to the use of urea or urea derivatives in the binder composition. ICA emissions can lead to health problems, and there are existing and proposed legislation aimed at reducing or eliminating ICA emissions, not only those originating from mineral fiber products during installation and use, but also those originating from the manufacture of mineral fiber products.

[0010] Other chemical components of interest derived from heat release include not only hydrogen cyanide (HCN), ammonia (NH3), and NOx, but also other nitrite-containing species. [Prior art documents] [Patent Documents]

[0011] [Patent Document 1] European Patent Application Publication No. 583086 [Patent Document 2] European Patent Application Publication No. 990727 Specification Patent Document 3 European Patent Application Publication No. 1741726 Specification Patent Document 4 United States Patent No. 5,318,990 Specification Patent Document 5 United States Patent Application Publication No. 2007 / 0173588 Specification Patent Document 6 International Publication No. 99 / 36368 Pamphlet Patent Document 7 International Publication No. 01 / 05725 Pamphlet Patent Document 8 International Publication No. 01 / 96460 Pamphlet Patent Document 9 International Publication No. 02 / 06178 Pamphlet Patent Document 10 International Publication No. 2004 / 007615 Pamphlet Patent Document 11 International Publication No. 2006 / 061249 Pamphlet Patent Document 12 International Publication No. 2008 / 023032 Pamphlet Summary of the Invention Problems to be Solved by the Invention

[0012] Accordingly, it was an object of the present invention to provide a mineral fiber product which has improved high-temperature performance, can be produced economically, and uses a renewable material as a starting material for the preparation of an aqueous binder composition.

[0013] It was a further object of the present invention to provide use of such a mineral fiber product.

[0014] It was a further object of the present invention to provide a method for transporting a medium through a pipe at high temperature. Means for Solving the Problems

[0015] According to a first aspect of the present invention, a mineral fiber product is provided comprising mineral fibers bound together by a cured binder composition, wherein the uncured binder composition comprises one or more lignosulfonate lignins, preferably lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and the mineral fiber product is provided wherein heating the mineral fiber product to a temperature of 600°C releases as a gas less than 2000 μg of isocyanic acid (ICA) per gram of sample, for example less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample.

[0016] According to a second aspect of the present invention, there is a use of a mineral fiber product comprising mineral fibers bound by a cured binder composition, preferably as an insulating product, at a temperature of at least 300°C, wherein the uncured binder composition comprises one or more lignosulfonate lignins, preferably lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and optionally, the mineral fiber product is heated to a temperature of 600°C to release less than 2000 μg of isocyanic acid (ICA) per gram of sample, for example less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample as a gas.

[0017] According to a third aspect of the present invention, a method for transporting a medium, a) A process of covering the pipe with a mineral fiber product as pipe insulation, b) A process of transporting the medium through the above pipe and The mineral fiber product comprises mineral fibers bound together by a cured binder composition as pipe insulation, the uncured binder composition comprising one or more lignosulfonate lignins, preferably lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and optionally, a method is provided in which heating the mineral fiber product to a temperature of 600°C releases as a gas less than 2000 μg of isocyanic acid (ICA) per gram of sample, for example less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample.

[0018] According to a fourth aspect of the present invention, a pipe is provided which is coated with a mineral fiber product as an insulating material, wherein the mineral fiber product comprises mineral fibers bound together by a cured binder composition, and the uncured binder composition comprises one or more lignosulfonate lignins, preferably lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and optionally, heating the mineral fiber product to a temperature of 600°C releases as a gas less than 2000 μg of isocyanic acid (ICA) per gram of sample, for example less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample.

[0019] The inventors have surprisingly found that when a binder composition based on lignosulfonate lignin having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of lignosulfonate lignin is used in mineral fiber products, it is possible to use the mineral fiber products in high-temperature applications with little to no ICA emissions. [Brief explanation of the drawing]

[0020] [Figure 1] A commonly used model structure for lignosulfonates is shown. [Modes for carrying out the invention]

[0021] The mineral fiber product of the present invention comprises mineral fibers bound together by a cured binder composition, the uncured binder composition comprising one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and heating the mineral fiber product to a temperature of 600°C releases as a gas less than 2000 μg of isocyanic acid (ICA) per gram of sample, preferably less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample.

[0022] In one embodiment, the mineral fiber product of the present invention comprises mineral fibers bound together by a cured binder composition, the uncured binder composition comprising one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and heating the mineral fiber product to a temperature of 450°C releases less than 2000 μg of isocyanic acid (ICA) per gram of sample, preferably less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample, as a gas.

[0023] The mineral fiber product of the present invention comprises mineral fibers bound together by a cured binder composition, the uncured binder composition comprising one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and heating the mineral fiber product to a temperature of 600°C releases as gas less than 2000 μg of isocyanate (ICA) per gram of sample, preferably less than 1000 μg of isocyanate (ICA) per gram of sample, for example less than 750 μg of isocyanate (ICA) per gram of sample, for example less than 600 μg of isocyanate (ICA) per gram of sample. Preferably, however, the aqueous binder composition is • Molecular weight M of 500 or less W epoxy compounds having It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is ·Formula R-[C(O)R1] x A carbonyl compound selected from the aldehyde and carbonyl compounds, wherein in the above formula, R represents a saturated or unsaturated linear, branched, or cyclic hydrocarbon group, a group containing an aromatic nucleus consisting of one or more five or six carbon atoms, or a group containing an aromatic heterocycle containing one or more four or five carbon atoms and an oxygen atom, a nitrogen atom, or a sulfur atom. This R group may contain other functional groups. R1 is a hydrogen atom or C1~C 10 Represents an alkyl group, x is a carbonyl compound in the range of 1 to 10. It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Polyamines It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Monosaccharides and oligosaccharides It does not contain any crosslinking agents selected from the above.

[0024] In one embodiment, the mineral fiber product of the present invention comprises mineral fibers bound together by a cured binder composition, the uncured binder composition comprising one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, and heating the mineral fiber product to a temperature of 450°C releases less than 2000 μg of isocyanic acid (ICA) per gram of sample, preferably less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample as a gas. Preferably, however, the aqueous binder composition is • Molecular weight M of 500 or less W epoxy compounds having It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is ·Formula R-[C(O)R1] x A carbonyl compound selected from the aldehyde and carbonyl compounds, wherein in the above formula, R represents a saturated or unsaturated linear, branched, or cyclic hydrocarbon group, a group containing an aromatic nucleus consisting of one or more five or six carbon atoms, or a group containing an aromatic heterocycle containing one or more four or five carbon atoms and an oxygen atom, a nitrogen atom, or a sulfur atom. This R group may contain other functional groups. R1 is a hydrogen atom or C1~C 10 Represents an alkyl group, x is a carbonyl compound in the range of 1 to 10. It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Polyamines It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Monosaccharides and oligosaccharides It does not contain any crosslinking agents selected from the above.

[0025] The heated mineral fiber product contains a hardened binder composition. With respect to "grams of sample," the grams of sample refer to the sample weight as defined in Protocol I below.

[0026] When a mineral fiber product containing a cured binder composition is heated to a specific temperature and the released gas (off-gas) is quantitatively analyzed for isocyanate (ICA) content by Fourier transform infrared spectroscopy (FTIR), the result is a measure of the amount of ICA released. This measure is obtained as the amount of ICA released as gas relative to the amount of cured binder composition in the tested mineral fiber product.

[0027] The given total emissions of ICA and other released gases are determined according to Protocol I, described below, for standardization purposes, in order to obtain comparable data for different products tested at different temperatures. It should be noted that the data obtained are not directly comparable to the emissions that would be determined for these products if implemented in technical insulation systems at end customers with specific field conditions. For example, in actual installations at end customers, the products are not crushed, and the binder in mineral fiber products does not burn completely as described in Protocol I below. In fact, the values ​​obtained in Protocol I represent the worst-case scenario in terms of both quantity and emission time. Therefore, it is expected that emissions from the products will be lower and emitted at a slower rate (2-48 hours to reach a steady state), although Protocol I has a steady state in actual installations after less than 2 hours compared to the values ​​obtained in this study. However, it can be easily assumed that mineral fiber products that show lower total emissions compared to other products according to Protocol I will also have lower total emissions in actual installations at end customers.

[0028] The measurement of emissions from different mineral wool products is typically performed by thoroughly testing different materials at different thicknesses using a combination of methods, such as testing by external organizations like RISE in Sweden. This is done by determining the dependence of the emission curve on the insulation thickness by quantifying the emitted gases, such as CO, NH3, HCN, NOx, and ICA, using FID signals and IR measurements.

[0029] For the purposes of this application, the total amount of ICA released as gas under Alternative Method B is measured according to Protocol I, described below. The internal measurements according to Protocol I were performed on different pulverized mineral wool products to eliminate discussions regarding thickness and porosity. These experiments were conducted in a custom-made emission chamber (tube oven) in which the material was heated to a specific temperature setpoint for a specific time. During these experiments, air passed through the chamber at a specific rate and was sampled for quantification of different compounds. Four different temperatures (250°C, 350°C, 450°C, and 600°C) were tested, and the released gases were quantified using Fourier transform infrared spectroscopy. Further details regarding Protocol I are given in the experimental section below.

[0030] The mineral fiber product of the present invention preferably also exhibits low emission of other released gases such as NH3, HCN, and / or NOx when the mineral fiber product containing the cured binder composition is subjected to heating.

[0031] In a preferred embodiment, heating the mineral fiber product to a temperature of 600°C releases less than 600 μg of HCN per gram of sample, for example less than 500 μg of HCN per gram of sample, for example less than 400 μg of HCN per gram of sample, as a gas.

[0032] In a preferred embodiment, heating the mineral fiber product to a temperature of 450°C releases less than 600 μg of HCN per gram of sample, for example, less than 500 μg of HCN per gram of sample, as a gas.

[0033] For the purposes of this application, the total amount of HCN released as gas can be measured according to the same protocol I described below. In this case, the FTIR gas analysis is naturally directed towards the compound being measured.

[0034] The mineral fiber products of the present invention are suitable for high-temperature applications and are also suitable in terms of thermal stability. In particular, the mineral fiber products of the present invention can be used in applications having a maximum operating temperature of at least 600°C, preferably at least 650°C. Accordingly, the mineral fiber products of the present invention generally meet the maximum operating temperature (MST) requirement of at least 600°C, preferably at least 650°C, according to the maximum operating temperature plate test of EN14706:2012. MST is mechanical strength, not related to thermal degradation or released gases.

[0035] Generally, the above-mentioned uncured binder composition is an aqueous binder composition. In preferred embodiments, the binder according to the present invention does not contain formaldehyde.

[0036] For the purposes of this application, the terms "formaldehyde-free" and "formaldehyde-free" refer to a mineral wool product with an emission level of 5 μg / m². 2 Less than / h, preferably 3 μg / m² 2 This is defined to characterize mineral wool products with formaldehyde levels below 1 / h. Preferably, the test is carried out in accordance with ISO 16000 for testing aldehyde emissions.

[0037] For the purposes of this invention, the term "monosaccharides and oligosaccharides" is defined to include monosaccharides and oligosaccharides having 10 or fewer sugar units.

[0038] For the purposes of this invention, the term "sugar" is defined to include monosaccharides and oligosaccharides having 10 or fewer sugar units.

[0039] Ingredient (i) The uncured binder composition for preparing mineral fiber products according to the present invention comprises, as component (i), one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin.

[0040] Component (i) is one or more lignosulfonate lignins, in the form of lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g, for example 0.03 to 1.4 mmol / g, for example 0.075 to 2.0 mmol / g, for example 0.075 to 1.4 mmol / g based on the dry weight of the lignosulfonate lignin.

[0041] Lignin, cellulose, and hemicellulose are the three main organic compounds in plant cell walls. Lignin can be thought of as an adhesive that holds cellulose fibers together. Lignin contains both hydrophilic and hydrophobic groups. Lignin is the second most abundant natural polymer in the world, second only to cellulose, and is estimated to account for about 20-30% of the total carbon contained in biomass totaling over 1 billion tons.

[0042] The lignosulfonate process introduces a large number of sulfonate groups to make lignin soluble not only in water but also in acidic aqueous solutions. Lignosulfonates contain up to 8% sulfur as sulfonates, while Kraft lignin contains 1-2% sulfur, most of which is bound to the lignin. The molecular weight of lignosulfonates is 15,000-50,000 g / mol. The typical hydrophobic core of lignin, along with numerous ionized sulfonate groups, makes this lignin attractive as a surfactant, and lignin often finds applications in dispersing cement and other materials.

[0043] To produce value-added lignin-based products, lignin must first be separated from biomass, and several methods can be used for this purpose. Kraft and sulfite pulping processes are well-known for their effective separation of lignin from wood and are therefore used worldwide. Kraft lignin is separated from wood with the help of NaOH and Na2S. Lignin from the sulfite pulping process is expressed as lignosulfonate and is produced by using sulfites containing sulfite and / or magnesium, calcium, sodium, or ammonium at various pH levels. Currently, lignosulfonate accounts for 90% of the entire market for commercially available lignin, and the total annual global production of lignosulfonate is approximately 1.8 million tons. Lignosulfonate generally has abundant sulfonic acid groups and therefore contains more sulfur than kraft lignin. Due to the presence of sulfonating groups, lignosulfonate is anionically charged and water-soluble. The molecular weight (Mw) of lignosulfonate can be similar to or greater than that of kraft lignin. Due to its unique properties, lignosulfonates have a wide range of applications, including animal feed, insecticides, surfactants, additives in oil drilling, stabilizers in colloidal suspensions, and plasticizers in concrete admixtures. However, most new pulp mills employ kraft technology for pulp production, and therefore kraft lignin is more readily available for value-added production.

[0044] However, lignosulfonates and Kraft lignin have different properties due to different isolation processes and therefore different functional group distributions. The high level of sulfonic acid groups in lignosulfonates, generally at least one for every four C9 units, makes lignosulfonates strongly charged at all pH levels in water. This abundance of ionizable functional groups can explain most of the differences compared to other industrial lignins. The higher charge density allows for easier water solubility and a higher solids content in solution compared to Kraft lignin. Also for the same reason, lignosulfonates have a lower solution viscosity compared to Kraft lignin at the same solids content, which can make them easier to handle and process. A commonly used model structure of lignosulfonate is shown in Figure 1.

[0045] In one embodiment, component (i) has a carboxylic acid group content of 0.05 to 0.6 mmol / g, for example, 0.1 to 0.4 mmol / g, based on the dry weight of lignosulfonate lignin.

[0046] In one embodiment, component (i) is in the form of one or more lignosulfonate lignins having an average carboxylic acid group content of less than 1.8 groups per polymer, e.g., less than 1.4, e.g., less than 1.1, e.g., less than 0.7, e.g., less than 0.4, considering the Mn weight average of component (i).

[0047] In one embodiment, component (i) has a phenolic OH group content of 0.3 to 2.5 mmol / g, for example 0.5 to 2.0 mmol / g, or for example 0.5 to 1.5 mmol / g, based on the dry weight of lignosulfonate lignin. It contains a certain amount of the group.

[0048] In one embodiment, component (i) has an aliphatic OH group content of 1.0 to 8.0 mmol / g, for example 1.5 to 6.0 mmol / g, or for example 2.0 to 5.0 mmol / g, based on the dry weight of lignosulfonate lignin.

[0049] In one embodiment, component (i) comprises ammonium lignosulfonate and / or calcium lignosulfonate, and / or magnesium lignosulfonate, or any combination thereof.

[0050] In one embodiment, component (i) comprises ammonium lignosulfonate and calcium lignosulfonate, and NH4 + to Ca 2+ has a molar ratio in the range of 5:1 to 1:5, particularly 3:1 to 1:3.

[0051] In one embodiment, the aqueous binder composition comprises added sugar in an amount of from 0 to less than 5% by weight, based on the weight of lignosulfonate and sugar.

[0052] For the purposes of the present invention, the terms lignosulfonate and lignosulfonic acid salt encompass sulfonated kraft lignin.

[0053] In one embodiment, component (i) is sulfonated kraft lignin.

[0054] In one embodiment, the aqueous binder composition comprises added sugar in an amount of 0 to 5% by weight, such as less than 5% by weight, such as 0 to 4.9% by weight, such as 0.1 to 4.9% by weight, based on the weight of lignosulfonate and sugar.

[0055] In one embodiment, the aqueous binder composition comprises component (i), i.e., lignosulfonate, in an amount of 50 to 98% by weight, such as 65 to 98% by weight, such as 80 to 98% by weight, based on the total weight of components (i) and (ii).

[0056] In one embodiment, the aqueous binder composition comprises component (i) in an amount of 50 to 98% by weight, such as 65 to 98% by weight, such as 80 to 98% by weight, based on the dry weight of components (i), (ii) and (iii).

[0057] For the purposes of the present invention, the content of lignin functional groups is used as a characterization method31 This is determined by using 1P NMR.

[0058] 31 Sample preparation for 1P NMR is performed using 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphosphoran (TMDP) as the phophytylation reagent and cholesterol as the internal standard. Integration follows the work of Granata and Argyropoulos (J.Agric.Food Chem. 43:1538-1544).

[0059] In a preferred embodiment, an uncured binder composition, preferably an aqueous binder composition, is used to prepare a mineral fiber product according to the present invention. • One or more components in the form of lignosulfonate lignin (i), • Optionally, one or more crosslinking agents are included as components (ii), • Optionally, one or more components in the form of plasticizers (iii) The aqueous binder composition may include, but preferably, the aqueous binder composition may contain • Molecular weight M of 500 or less W epoxy compounds having It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is ·Formula R-[C(O)R1] x A carbonyl compound selected from the aldehyde and carbonyl compounds, wherein in the above formula, R represents a saturated or unsaturated linear, branched, or cyclic hydrocarbon group, a group containing an aromatic nucleus consisting of one or more five or six carbon atoms, or a group containing an aromatic heterocycle containing one or more four or five carbon atoms and an oxygen atom, a nitrogen atom, or a sulfur atom. This R group may contain other functional groups. R1 is a hydrogen atom or C1~C 10 Represents an alkyl group, x is a carbonyl compound in the range of 1 to 10. It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Polyamines It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Monosaccharides and oligosaccharides It does not contain any crosslinking agents selected from the above.

[0060] Ingredients (ii) The optional component (ii) is in the form of one or more crosslinking agents.

[0061] In one embodiment, component (ii) comprises one or more crosslinking agents selected from β-hydroxyalkylamide crosslinking agents and / or oxazoline crosslinking agents.

[0062] β-hydroxyalkylamide crosslinkers are curing agents for acid-functional polymers. These β-hydroxyalkylamide crosslinkers provide a hard, durable, corrosion-resistant, and solvent-resistant crosslinked polymer network. It is believed that the β-hydroxyalkylamide crosslinkers cure through esterification reactions, forming multiple ester bonds. The hydroxyl functionality of the β-hydroxyalkylamide crosslinkers should be at least 2 on average, preferably greater than 2, and more preferably 2-4, to obtain an optimal curing response.

[0063] Oxazoline group-containing crosslinking agents are polymers containing one or more oxazoline groups in each molecule, and generally, oxazoline-containing crosslinking agents can be readily obtained by polymerizing oxazoline derivatives. U.S. Patent No. 6,818,699,B2 provides disclosure of such a process.

[0064] In one embodiment, component (ii) is one or more epoxy compounds having a molecular weight greater than 500, for example, epoxidized oils based on fatty acid triglycerides, or one or more flexible oligomers or polymers containing reactive functional groups, for example, carbodiimide groups, for example, anhydride groups, for example, oxazoline groups, for example, amino groups, for example, epoxy groups, for example, β-hydroxyalkylamide groups, for example, low-Tg acrylic polymers, for example, low-Tg vinyl polymers, for example, low-Tg polyethers.

[0065] In one embodiment, component (ii) is one or more crosslinking agents selected from the group consisting of fatty amines.

[0066] In one embodiment, component (ii) is one or more crosslinking agents in the form of fatty amides.

[0067] In one embodiment, component (ii) is one or more crosslinking agents selected from polyester polyols such as polycaprolactone.

[0068] In one embodiment, component (ii) is one or more crosslinking agents selected from the group consisting of starch, modified starch, and CMC.

[0069] In one embodiment, component (ii) is one or more crosslinking agents in the form of polyfunctional carbodiimides, such as aliphatic polyfunctional carbodiimides.

[0070] In one embodiment, component (ii) is one or more crosslinking agents in the form of aziridines such as CX100 and NeoAdd-Pax 521 / 523.

[0071] In one embodiment, component (ii) is one or more crosslinking agents selected from melamine-based crosslinking agents such as hexakis(methylmethoxy)melamine (HMMM)-based crosslinking agents.

[0072] Examples of such compounds include Picassian XL 701, 702, 725 (Stahl Polymers), ZOLDINE® XL-29SE (Angus Chemical Company), CX300 (DSM), and Carbodilite V-02-L2 (Nisshinbo Chemical Co., Ltd.).

[0073] In one embodiment, component (ii) is Primid XL552 having the following structure: [ka]

[0074] Component (ii) may also be a mixture of any of the above compounds.

[0075] In one embodiment, the binder composition according to the present invention comprises component (ii) in an amount of 1 to 50% by weight, for example, 4 to 20% by weight, for example, 6 to 12% by weight, based on the dry weight of component (i).

[0076] In one embodiment, component (ii) is, • β-hydroxyalkylamide crosslinking agents, e.g., N-(2-hydroxyisopropyl)amide crosslinking agents, e.g., N-(2-hydroxyethyl)amide crosslinking agents, e.g., N-(2-hydroxyethyl)adipoamide crosslinking agents, e.g., N,N,N',N'-tetrakis(2-hydroxyethyl)adipoamide, and / or • A group consisting of polyfunctional organic amines such as alkanolamines, diamines such as hexamethyldiamine, and / or • Epoxy compounds having a molecular weight greater than 500, for example, epoxidized oils based on fatty acid triglycerides, or one or more flexible oligomers or polymers containing reactive functional groups, for example, carbodiimide groups, for example, anhydride groups, for example, oxazoline groups, for example, amino groups, for example, epoxy groups, for example, low Tg acrylic polymers, for example, low Tg vinyl polymers, for example, low Tg polyethers, and / or • One or more crosslinking agents in the form of polyfunctional carbodiimides, e.g., aliphatic polyfunctional carbodiimides. It is in the form of one or more crosslinking agents selected from the following.

[0077] In one embodiment, component (ii) is, • β-hydroxyalkylamide crosslinking agents, such as N-(2-hydroxyisopropyl)amide crosslinking agents, such as N-(2-hydroxyethyl)amide crosslinking agents, such as N-(2-hydroxyethyl)adipoamide crosslinking agents, such as N,N,N',N'-tetrakis(2-hydroxyethyl)adipoamide It contains one or more crosslinking agents selected from the following.

[0078] In one embodiment, component (ii) comprises 2 to 90% by weight, for example 6 to 60% by weight, for example 10 to 40% by weight, for example 25 to 40% by weight, based on the dry weight of component (i).

[0079] Ingredient (iii) The optional component (iii) is in the form of one or more plasticizers.

[0080] In one embodiment, component (iii) is in the form of one or more plasticizers selected from the group consisting of polyols, for example carbohydrates, hydrides, for example sorbitol, erythritol, glycerol, monoethylene glycol, polyethylene glycol, polyethylene glycol ether, polyether, phthalate and / or acid, for example adipic acid, vanillic acid, lactic acid and / or ferulic acid, acrylic polymer, polyvinyl alcohol, polyurethane dispersion, ethylene carbonate, propylene carbonate, lactone, lactam, lactide, acrylic polymer having free carboxyl groups and / or polyurethane dispersion having free carboxyl groups, polyamide, amide such as carboamide / urea, or mixtures of any of these.

[0081] In one embodiment, component (iii) is in the form of one or more plasticizers selected from the group consisting of carbonates (carbonates), such as ethylene carbonate, propylene carbonate, lactones, lactams, lactides, compounds having a structure similar to lignin, such as vanillin, acetosyringone, and solvents used as binders, such as alcohol ethers and polyvinyl alcohols.

[0082] In one embodiment, component (iii) is in the form of one or more unreactive plasticizers selected from the group consisting of polyethylene glycol, polyethylene glycol ether, polyether, hydride sugar, phthalate and / or other ester, and solvents used as a binder, such as alcohol ether, acrylic polymer, and polyvinyl alcohol.

[0083] In one embodiment, component (iii) is one or more reactive plasticizers selected from the group consisting of carbonate esters, such as ethylene carbonate, propylene carbonate, lactones, lactams, lactides, dicarboxylic acids or tricarboxylic acids, such as adipic acid or lactic acid, and / or vanillic acid and / or ferulic acid, polyurethane dispersions, acrylic polymers having free carboxyl groups, and compounds having a structure similar to lignin, such as vanillin and acetosyringone.

[0084] In one embodiment, component (iii) is in the form of one or more plasticizers selected from the group consisting of fatty alcohols, monohydroxy alcohols, such as pentanol and stearyl alcohol.

[0085] In one embodiment, component (iii) comprises one or more plasticizers selected from the group consisting of polyethylene glycol and polyethylene glycol ethers, and / or one or more plasticizers in the form of polyols, such as 1,1,1-tris(hydroxymethyl)propane and / or triethanolamine.

[0086] Another particular and surprising aspect of the present invention is that the use of plasticizers having boiling points above 100°C, particularly between 140 and 250°C, strongly improves the mechanical properties of the mineral fiber products according to the present invention, despite the fact that these plasticizers may, given their boiling points, at least partially evaporate during the curing of the binder in contact with the mineral fibers.

[0087] In one embodiment, component (iii) comprises one or more plasticizers having a boiling point greater than 100°C, for example, 110 to 380°C, more preferably 120 to 300°C, and more preferably 140 to 250°C.

[0088] The effectiveness of these plasticizers in the solid binder composition according to the present invention is thought to be related to their effect of increasing the mobility of oxidized lignin during the curing process. The increased mobility of lignin during the curing process is thought to promote effective crosslinking.

[0089] In one embodiment, component (iii) comprises one or more polyethylene glycols having an average molecular weight of 150 to 50,000 g / mol, particularly 150 to 4,000 g / mol, more particularly 150 to 1,000 g / mol, preferably 150 to 500 g / mol, and more preferably 200 to 400 g / mol.

[0090] In one embodiment, component (iii) comprises one or more polyethylene glycols having an average molecular weight of 4,000 to 25,000 g / mol, particularly 4,000 to 15,000 g / mol, and more particularly 8,000 to 12,000 g / mol.

[0091] In one embodiment, component (iii) can form a covalent bond with component (i) and / or component (ii) during the curing process. Such a component will not evaporate and will remain as part of the composition, but will be effectively modified so as not to introduce undesirable side effects to the cured product, such as water absorption. Non-limiting examples of such components are caprolactone and acrylic polymers having free carboxyl groups.

[0092] In one embodiment, component (iii) is selected from the group consisting of fatty alcohols, monohydroxy alcohols, such as pentanol and stearyl alcohol.

[0093] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of alkoxylates, e.g., ethoxylates, e.g., butanol ethoxylate, e.g., butoxytriglycol.

[0094] In one embodiment, component (iii) is selected from one or more propylene glycols.

[0095] In one embodiment, component (iii) is selected from one or more glycol esters.

[0096] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of adipate (adipate ester), acetate (acetic acid ester), benzoate (benzoic acid ester), cyclobenzoate (cyclobenzoic acid ester), citrate (citric acid ester), stearate (stearate ester), sorbate (sorbate ester), sebacate (sebacate ester), azelate (azelaic acid ester), butyrate (butyrate ester), and valerate (valeric acid ester).

[0097] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of phenol derivatives such as alkyl or aryl-substituted phenols.

[0098] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of silanols and siloxanes.

[0099] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of sulfates (sulfuric acid esters) such as alkyl sulfates, sulfonates (sulfonic acid esters) such as alkylaryl sulfonates and alkyl sulfonates, phosphates (phosphate esters) such as tripolyphosphates (tripolyphosphate esters), for example, tributyl phosphate (tributyl phosphate).

[0100] In one embodiment, component (iii) is selected from one or more hydroxy acids.

[0101] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of monomer amides such as acetamide and benzamide, and fatty acid amides such as tall oil amide.

[0102] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of quaternary ammonium compounds such as trimethylglycine and distearyldimethylammonium chloride.

[0103] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of vegetable oils such as castor oil, palm oil, linseed oil, tall oil, and soybean oil.

[0104] In one embodiment, component (iii) is in the form of tall oil.

[0105] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of hardened oils (hydrogenated oils) and acetylated oils.

[0106] In one embodiment, component (iii) is selected from one or more fatty acid methyl esters.

[0107] In one embodiment, component (iii) is selected from one or more plasticizers selected from the group consisting of alkyl polyglucosides, gluconamides, aminoglucoseamides, sucrose esters, and sorbitan esters.

[0108] In one embodiment, component (iii) is selected from the group consisting of polyethylene glycol and polyethylene glycol ether.

[0109] In one embodiment, component (iii) is selected from the group consisting of triethanolamine.

[0110] In one embodiment, component (iii) is in the form of one or more plasticizers, which include propylene glycol, phenol derivatives, silanols, siloxanes, hydroxy acids, vegetable oils, polyethylene glycol, polyethylene glycol ethers, and / or polyols such as 1,1,1-tris(hydroxymethyl)propane, triethanolamine, or any mixture thereof.

[0111] Surprisingly, it was found that including a plasticizer in the solid binder composition according to the present invention significantly improves the mechanical properties of the mineral fiber product according to the present invention.

[0112] The term "plasticizer" refers to a substance added to a material to make it softer, more flexible (by lowering the glass transition temperature Tg), and easier to process.

[0113] Component (iii) may also be a mixture of any of the above compounds.

[0114] In one embodiment, component (iii) is present in an amount of 0.5 to 60% by weight, preferably 2.5 to 25% by weight, and more preferably 3 to 15% by weight, based on the dry weight of component (i).

[0115] In one embodiment, component (iii) is present in an amount of 0.5 to 60% by weight, preferably 2.5 to 25% by weight, and more preferably 3 to 15% by weight, based on the dry weight of components (i), (ii), and (iii).

[0116] Mineral fiber products containing mineral fibers in contact with the binder resulting from the curing of a binder composition containing components (i) and (iia). In one embodiment, the present invention is • Component (i) in the form of lignosulfonate trinin having a carboxylic acid group content of 0.03 to 2.0 mmol / g, for example 0.03 to 1.4 mmol / g, for example 0.075 to 2.0 mmol / g, for example 0.075 to 1.4 mmol / g based on the dry weight of the lignosulfonate trinin, • One or more modifier components (iia) and A mineral fiber product containing mineral fibers that have come into contact with a binder resulting from the curing of a binder composition for mineral fibers containing, preferably, however, the aqueous binder composition is • Molecular weight M of 500 or less W epoxy compounds having It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is ·Formula R-[C(O)R1] x A carbonyl compound selected from the aldehyde and carbonyl compounds, wherein in the above formula, R represents a saturated or unsaturated linear, branched, or cyclic hydrocarbon group, a group containing an aromatic nucleus consisting of one or more five or six carbon atoms, or a group containing an aromatic heterocycle containing one or more four or five carbon atoms and an oxygen atom, a nitrogen atom, or a sulfur atom. This R group may contain other functional groups. R1 is a hydrogen atom or C1~C 10 Represents an alkyl group, x is a carbonyl compound in the range of 1 to 10. It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Polyamines It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Monosaccharides and oligosaccharides It is intended for mineral fiber products that do not contain crosslinking agents selected from the available options.

[0117] The present inventors have found that excellent binder properties can also be achieved by a two-component system comprising one or more lignosulfonate lignins, having a carboxylic acid group content of 0.03 to 2.0 mmol / g, for example 0.03 to 1.4 mmol / g, for example 0.075 to 2.0 mmol / g, for example 0.075 to 1.4 mmol / g based on the dry weight of the lignosulfonate lignin (i), one or more modifiers (iia), and optionally any of the other components listed above and below.

[0118] In one embodiment, component (iia) is a modifier in the form of one or more compounds selected from the group consisting of an epoxy compound having a molecular weight greater than 500, such as an epoxidized oil based on fatty acid triglycerides, or one or more flexible oligomers or polymers containing a reactive functional group, such as a carbodiimide group, such as an anhydride group, such as an oxazoline group, such as an amino group, such as an epoxy group, such as a β-hydroxyalkylamide group, such as a low-Tg acrylic polymer, such as a low-Tg vinyl polymer, such as a low-Tg polyether.

[0119] In one embodiment, component (iia) is one or more modifiers selected from the group consisting of polyethyleneimines, polyvinylamines, and fatty amines.

[0120] In one embodiment, component (iia) is one or more modifiers selected from polyfunctional carbodiimides, such as aliphatic polyfunctional carbodiimides.

[0121] Component (iia) may also be a mixture of any of the above compounds.

[0122] While we do not wish to be bound by any particular theory, the inventors believe that the excellent binder properties achieved by the mineral fiber binder composition comprising components (i) and (iia) and any further optional components are at least partially attributable to the effect that the modifier used as component (iia) performs at least partially the functions of a plasticizer and a crosslinking agent.

[0123] In one embodiment, the binder composition contains component (iia) in an amount of 1 to 40% by weight, for example 4 to 20% by weight, for example 6 to 12% by weight, based on the dry weight of component (i).

[0124] Further ingredients In some embodiments, the mineral fiber product according to the present invention comprises mineral fibers in contact with a binder composition resulting from the curing of a binder containing further components.

[0125] In one embodiment, the binder composition contains a catalyst selected from inorganic acids, such as sulfuric acid, sulfamic acid, nitric acid, boric acid, hypophosphorous acid, and / or phosphoric acid, and / or any salt thereof, such as sodium hypophosphite and / or ammonium salts, such as sulfuric acid, sulfamic acid, nitric acid, boric acid, hypophosphorous acid, and / or ammonium salts of phosphoric acid, and / or sodium polyphosphate (STTP) and / or sodium metaphosphate (STMP), and / or phosphorus oxychloride. The presence of such a catalyst can improve the curing properties of the binder composition according to the present invention.

[0126] In one embodiment, the binder composition is a Lewis acid capable of accepting electron pairs from a donor compound to form a Lewis adduct, such as ZnCl2, Mg(ClO4)2, Sn[N(SO2-n-C8F 17 )2]4, comprising a catalyst selected from.

[0127] In one embodiment, the binder composition comprises a catalyst selected from metal chlorides, such as KCl, MgCl2, ZnCl2, FeCl3, and SnCl2, or adducts thereof, such as AlCl3 adducts, such as BF3 adducts, such as BF3 ethylamine complexes.

[0128] In one embodiment, the binder composition includes a catalyst selected from organometallic compounds, such as titanate catalysts and tin catalysts.

[0129] In one embodiment, the binder composition includes a catalyst selected from a chelating agent, such as a transition metal, such as iron ions, chromium ions, manganese ions, or copper ions, and / or a peroxide, such as an organic peroxide, such as a dicumyl peroxide.

[0130] In one embodiment, the binder composition according to the present invention comprises a catalyst selected from phosphites (phosphorous esters), such as alkyl phosphites, such as aryl phosphites, and such as triphenyl phosphites (triphenyl phosphorous esters).

[0131] In one embodiment, the binder composition according to the present invention comprises a catalyst selected from the group of tertiary amines such as tris-2,4,6-dimethylaminomethylphenol.

[0132] In one embodiment, the binder composition further comprises (iv) a further component in the form of one or more silanes.

[0133] In one embodiment, the binder composition comprises one or more coupling agents, for example, a further component (iv) in the form of an organically functionalized silane.

[0134] In one embodiment, component (iv) is selected from the group consisting of organic functionalized silanes, such as primary or secondary amino functionalized silanes; epoxy functionalized silanes, such as polymeric or oligomeric epoxy functionalized silanes; methacrylate functionalized silanes; alkyl and aryl functionalized silanes; urea functionalized silanes; or vinyl functionalized silanes.

[0135] In one embodiment, the binder composition further comprises component (v) in the form of one or more components selected from the group of bases, e.g., ammonia, e.g., alkali metal hydroxides, e.g., KOH, e.g., alkaline earth metal hydroxides, e.g., Ca(OH)2, e.g., Mg(OH)2, e.g., amines, or salts of any of these.

[0136] In one embodiment, the binder composition further comprises a further component in the form of urea in an amount of 5 to 40% by weight, for example, 10 to 30% by weight, or 15 to 25% by weight, based particularly on the dry weight of component (i).

[0137] In one embodiment, the binder composition further comprises one or more carbohydrate components selected from the group consisting of sucrose, reducing sugars, particularly dextrose, polycarbohydrates, and mixtures thereof, preferably dextrin and maltodextrin, more preferably glucose syrup, more preferably glucose syrup having a dextrose equivalent value of DE=30 to less than 100, for example DE=60 to less than 100, for example DE=60 to 99, for example DE=85 to 99, for example DE=95 to 99.

[0138] In one embodiment, the binder composition further comprises an amount of 5 to 50% by weight, for example less than 5 to 50% by weight, for example 10 to 40% by weight, for example 15 to 30% by weight, based on the dry weight of component (i), in the form of one or more carbohydrates selected from the group consisting of sucrose and reducing sugars.

[0139] In one embodiment, the mineral fiber product according to the present invention comprises mineral fibers in contact with a binder composition comprising one or more components in the form of silicone resins.

[0140] In one embodiment, the binder composition according to the present invention comprises a further component (vi) in the form of one or more reactive or non-reactive silicones.

[0141] In one embodiment, component (vi) is selected from the group consisting of silicones comprising a main chain of organosiloxane residues, particularly diphenylsiloxane residues, alkylsiloxane residues, preferably dimethylsiloxane residues, having at least one hydroxyl, carboxyl, anhydride, amine, epoxy, or vinyl functional group that can react with at least one of the components of the binder composition, and is preferably present in an amount of 0.025 to 15% by weight, preferably 0.1 to 10% by weight, and more preferably 0.3 to 8% by weight, based on the binder solids content.

[0142] In one embodiment, the mineral fiber product does not contain ammonia-oxidized lignin (AOL).

[0143] In one embodiment, the mineral fiber product according to the present invention comprises mineral fibers in contact with a binder composition comprising a further component in the form of one or more mineral oils.

[0144] In the context of the present invention, a binder composition having a sugar content of 50% by weight or more based on the total dry weight of the binder components is considered a sugar-based binder. In the context of the present invention, a binder composition having a sugar content of less than 50% by weight based on the total dry weight of the binder components is considered a non-sugar-based binder.

[0145] In one embodiment, the binder composition further comprises a further component in the form of one or more surfactants, such as nonionic and / or ionic emulsifiers, such as polyoxyethylene (4) lauryl ether, such as soy lecithin, or such as sodium dodecyl sulfate.

[0146] The use of lignin-based sulfonation products in binders can lead to increased hydrophilicity in some binders and final products, which means that one or more hydrophobic agents, such as one or more mineral oils, one or more silicone oils, or one or more silicone resins, should be added.

[0147] In one embodiment, the aqueous binder composition is essentially (i) a component in the form of lignosulfonate trinin having a carboxylic acid group content of 0.03 to 2.0 mmol / g, for example 0.03 to 1.4 mmol / g, for example 0.075 to 2.0 mmol / g, for example 0.075 to 1.4 mmol / g based on the dry weight of the lignosulfonate trinin, and / or • One or more crosslinking agents as components (ii) • One or more plasticizer components (iii) • One or more coupling agents, for example, components in the form of organically functional silanes (iv) • Optionally, one or more compounds selected from the group of bases, e.g., ammonia, e.g., alkali metal hydroxides, e.g., KOH, e.g., alkaline earth metal hydroxides, e.g., Ca(OH)2, e.g., Mg(OH)2, e.g., amines, or salts of any of these, as components. • Optionally, the component in the form of urea, • Optionally, a component in the form of a more reactive or less reactive silicone. Optional: hydrocarbon oils, • Optionally, one or more surfactants, ·water It consists of.

[0148] In one embodiment, the aqueous binder composition is essentially (i) a component in the form of lignosulfonate trinin having a carboxylic acid group content of 0.03 to 2.0 mmol / g, for example 0.03 to 1.4 mmol / g, for example 0.075 to 2.0 mmol / g, for example 0.075 to 1.4 mmol / g based on the dry weight of the lignosulfonate trinin, and / or • One or more crosslinking agents as components (ii) • One or more coupling agents, for example, components in the form of organically functional silanes (iv) • Optionally, one or more compounds selected from the group of bases, e.g., ammonia, e.g., alkali metal hydroxides, e.g., KOH, e.g., alkaline earth metal hydroxides, e.g., Ca(OH)2, e.g., Mg(OH)2, e.g., amines, or salts of any of these, as components. • Optionally, the component in the form of urea, • Optionally, a component in the form of a more reactive or less reactive silicone. Optionally, hydrocarbon oils and • Optionally, one or more surfactants, ·water It consists of.

[0149] The inventors have surprisingly found that mineral fiber products containing mineral fibers that come into contact with the binder during the curing of the aqueous binder composition described above exhibit extremely high stability both when newly manufactured and after aging conditions.

[0150] Furthermore, the inventors have found that even higher product stability can be obtained by using a curing temperature exceeding 230°C.

[0151] In one embodiment, the present invention is therefore directed to mineral fiber products containing mineral fibers in contact with a binder resulting from the curing of an aqueous binder composition as described above, in which a curing temperature of 230°C or higher is used.

[0152] The inventors have further discovered that the stability of the mineral fiber product can be further enhanced by the following means. • Lower line capacity, meaning longer curing time. • Addition of silicone resin, • Addition of large amounts of crosslinking agents, • Addition of a combination of two or more different crosslinking agents. • Addition of small amounts of cationic species, such as polyvalent metal ions, such as calcium, and / or organic cationic species, such as amines, and / or organically modified inorganic compounds, such as amine-modified montmorillonite clay.

[0153] Manufacturing methods for mineral fiber products The mineral fiber product of the present invention can be prepared by a conventional method for manufacturing mineral fiber products, which involves binding mineral fibers using the above-mentioned binder composition. Accordingly, the mineral fiber product of the present invention is preferably prepared by a method that includes the step of contacting mineral fibers with an uncured, preferably aqueous, binder composition containing one or more lignosulfonates and lignins. In a preferred embodiment, this uncured, preferably aqueous, binder composition is • Component (i) in the form of lignosulfonate trinin having a carboxylic acid group content of 0.03 to 2.0 mmol / g, for example 0.03 to 1.4 mmol / g, for example 0.075 to 2.0 mmol / g, for example 0.075 to 1.4 mmol / g based on the dry weight of the lignosulfonate trinin, • Optionally, one or more crosslinking agents are included as components (ii), • Optionally, one or more components in the form of plasticizers (iii) The aqueous binder composition may include, but preferably, the aqueous binder composition may contain • Molecular weight M of 500 or less W epoxy compounds having It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is ·Formula R-[C(O)R1] x A carbonyl compound selected from the aldehyde and carbonyl compounds, wherein in the above formula, R represents a saturated or unsaturated linear, branched, or cyclic hydrocarbon group, a group containing an aromatic nucleus consisting of one or more five or six carbon atoms, or a group containing an aromatic heterocycle containing one or more four or five carbon atoms and an oxygen atom, a nitrogen atom, or a sulfur atom. This R group may contain other functional groups. R1 is a hydrogen atom or C1~C 10 Represents an alkyl group, x is a carbonyl compound in the range of 1 to 10. It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Polyamines It does not contain a crosslinking agent selected from and / or However, the aqueous binder composition is • Monosaccharides and oligosaccharides It does not contain any crosslinking agents selected from the above.

[0154] hardening The uncured binder composition in a mineral fiber product precursor such as a web, in which the mineral fibers are in contact with the binder composition, is cured by chemical and / or physical reactions of the binder components.

[0155] In one embodiment, curing is performed in a curing apparatus.

[0156] In one embodiment, curing is carried out at a temperature of 100-300°C, for example 170-270°C, for example 180-250°C, for example 190-230°C.

[0157] In one embodiment, curing is carried out in a conventional curing oven for mineral wool production operating at a temperature of 150-300°C, for example 170-270°C, for example 180-250°C, for example 190-230°C.

[0158] In one embodiment, curing takes place over a period of time of 30 seconds to 20 minutes, for example, 1 to 15 minutes, for example, 2 to 10 minutes.

[0159] The curing process may begin immediately after the binder is applied to the fibers. Curing is defined as the process by which the binder composition undergoes physical and / or chemical reactions, which, in the case of chemical reactions, typically increase the molecular weight of the compounds in the binder composition, thereby increasing the viscosity of the binder composition, usually until the binder composition reaches a solid state.

[0160] In one embodiment, the curing process includes pressure drying. This pressure may be applied by blowing air or gas through / on the mixture of mineral fibers and binder.

[0161] Mineral fiber products according to the present invention The present invention is directed to mineral fiber products that include mineral fibers in contact with the cured binder composition described above, that is, mineral fibers in contact with a cured binder resulting from the curing of the binder composition described above, preferably an aqueous binder composition.

[0162] The mineral fibers used may be any of the following: artificial glass fibers (MMVF), glass fibers, ceramic fibers, basalt fibers, slag fibers, rock fibers, stone fibers, etc. These fibers may also exist as wool products, such as stone wool products.

[0163] Fiber / Melted Composition Artificial glass fibers (MMVF) can have any suitable oxide composition. The fibers can be glass fibers, ceramic fibers, basalt fibers, slag fibers, or rock or stone fibers. The fibers are preferably those commonly known as rock fibers, stone fibers, or slag fibers, and most preferably stone fibers.

[0164] Stone fibers typically contain the following oxides by weight percentage: SiO2: 30~51 Al2O3: 12-30 CaO: 8-30 MgO: 2~25 FeO (including Fe2O3): 2-15 Na2O + K2O: 10 or less CaO + MgO: 10-30

[0165] In a preferred embodiment, MMVF has the following elemental levels, calculated as weight percent as oxide: SiO2: at least 30, 32, 35 or 37; 51, 48, 45 or 43 or less Al2O3: at least 12, 16, or 17; 30, 27, or 25 or less CaO: at least 8 or 10; 30, 25, or 20 or less. MgO: at least 2 or 5; 25, 20, or 15 or less FeO (including Fe2O3): at least 4 or 5; 15, 12, or 10 or less FeO + MgO: at least 10, 12, or 15; 30, 25, or 20 or less Na2O + K2O: Zero or at least 1; ≤ 10 CaO + MgO: at least 10 or 15; 30 or 25 or less TiO2: Zero or at least 1; 6, 4, or 2 or less TiO2 + FeO: at least 4 or 6; 18 or 12 or less B2O3: Zero or at least 1; 5 or 3 or less P2O5: Zero or at least 1; 8 or 5 or less Other: Zero or at least 1; 8 or 5 or less.

[0166] The MMVF produced by the method of the present invention preferably has the following composition in weight percent. SiO235~50 Al2O3 12~30 Up to TiO22 Fe2O33~12 CaO 5-30 MgO up to 15 Na2O 0~15 K2O 0-15 Up to P2O53 Up to MnO3 Up to B2O33

[0167] Another preferred composition for MMVF is as follows in weight percent: SiO2 39-55%, preferably 39-52% Al2O3 16-27%, preferably 16-26% CaO 6-20%, preferably 8-18% MgO 1-5%, preferably 1-4.9% Na2O 0-15%, preferably 2-12% K2O 0-15%, preferably 2-12% R2O(Na2O+K2O) 10-14.7%, preferably 10-13.5% P2O 50-3%, preferably 0-2% Fe2O3 (total iron) 3-15%, preferably 3.2-8% B2O 30-2%, preferably 0-1% TiO2 0-2%, preferably 0.4-1% Other 0-2.0%

[0168] Glass fibers typically contain the following oxides by weight percentage: SiO2: 50~70 Al2O3 10-30 CaO: 27 or less MgO: 12 or less

[0169] Glass fibers may also contain the following oxides by weight percentage: Na2O + K2O: 8-18, especially more than CaO + MgO. B2O3: 3-12

[0170] Several glass fiber compositions, Al2O3: Less than 2% It can contain.

[0171] Suitable fiber formation methods and subsequent manufacturing processes for producing mineral fiber products are conventional in the art. Generally, the binder is sprayed onto airborne mineral fibers immediately after fibrillation of the mineral molten material. The uncured, preferably aqueous, binder composition is typically applied (coated) in an amount of 0.1 to 18% by weight, preferably 0.2 to 8% by weight, on a dry basis, to the bound mineral fiber product.

[0172] Spray-coated mineral fiber webs are generally cured in a curing oven by a hot airflow. The hot airflow may be introduced into the mineral fiber web from below, above, or alternating directions in separate zones along the length of the curing oven.

[0173] Typically, curing ovens are operated at temperatures ranging from approximately 150°C to 300°C, for example, 170-270°C, 180-250°C, or 190-230°C. Generally, the residence time in the curing oven is 30 seconds to 20 minutes, for example, 1-15 minutes, or 2-10 minutes, depending on the product density.

[0174] If desired, the mineral fiber web may be subjected to a molding process before curing. The bonded mineral fiber product emerging from the curing oven may be cut into desired shapes, for example, in the form of a batt.

[0175] In a preferred embodiment, the mineral fiber product according to the present invention is an insulating product. The mineral fiber product is preferably in the form of a preformed pipe portion, a wired mat, or a plate (slab).

[0176] In a preferred embodiment, the mineral fiber product according to the present invention has a thickness ranging from 20 mm to 500 mm, preferably 30 mm to 300 mm, for example, 50 mm to 150 mm, and generally the mineral fiber product is in the form of a sheet.

[0177] The mineral fiber products according to the present invention generally have a density of 6 to 250 kg / m². 3Preferably 20-200 kg / m 3 The mineral fiber product has a density within the range of 0.25 to 18.0% or 0.3 to 18.0%, preferably 0.5 to 8.0%. In a preferred embodiment, the mineral fiber product has an ignition loss (LOI) of 0.25 to 8.0% or 0.3 to 8.0%, more preferably 0.25 to 6.0%.

[0178] Use of mineral fiber products according to the present invention The use of mineral fiber products according to the present invention is intended for high-temperature applications. In this specification, high-temperature applications mean the use of the mineral fiber products at temperatures of at least 300°C, preferably at least 400°C, for example, at least 450°C, and / or up to 700°C.

[0179] Accordingly, the present invention relates to the use of mineral fiber products comprising mineral fibers bound by a cured binder composition at a temperature of at least 300°C, preferably at least 400°C, for example at at least 450°C, wherein the uncured binder composition comprises one or more lignosulfonates and lignins. Generally, the use of the present invention is at a temperature of 700°C or less, preferably 650°C or less.

[0180] Generally, heating the mineral fiber product to a temperature of 600°C is preferable to releasing less than 2000 μg of isocyanic acid (ICA) per gram of sample, more preferably less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample as gas. The method for determining the total amount of ICA released is described below.

[0181] In a preferred embodiment of the use according to the present invention, the mineral fiber product is used as an insulating product, and more preferably as a pipe insulating material.

[0182] With regard to the use of the present invention, it is preferable that the pipes be operated at a high operating temperature of at least 300°C, preferably at least 400°C, for example, at least 450°C. Generally, the temperature is 700°C or lower, preferably 650°C or lower.

[0183] The pipe is preferably a metal pipe. In particular, this pipe is used to transport a medium such as a gas, vapor, or fluid. The medium transported through this pipe is usually a high-temperature medium having the minimum operating temperature mentioned above.

[0184] Mineral fiber products for use according to the present invention may have all the features described above for mineral fiber products of the present invention, and therefore refer to them.

[0185] Method for transporting a medium according to the present invention The present invention relates to a method for transporting a medium, a) A process of covering the pipe with a mineral fiber product as pipe insulation, b) A process of transporting the medium through the above pipe and The present invention also relates to a method comprising mineral fibers bound together by a cured binder composition, wherein the uncured binder composition comprises one or more lignosulfonates and lignins.

[0186] Generally, heating the above mineral fiber product to a temperature of 600°C is preferable to release less than 2000 μg of isocyanic acid (ICA) per gram of sample, for example less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample as gas. The method for determining the total amount of ICA released is described below.

[0187] In a preferred embodiment, the transported medium has a temperature of at least 300°C, preferably at least 400°C, for example, at least 450°C. Preferably, this temperature is 700°C or lower, preferably 650°C or lower.

[0188] The medium transported through the pipe may be, for example, a gas, vapor, or fluid.

[0189] The mineral fiber product used in the method according to the present invention may have all the features described above for the mineral fiber product of the present invention, and therefore refer to them.

[0190] Insulated pipe according to the present invention The present invention also relates to a pipe covered or wrapped with a mineral fiber product as an insulating material, wherein the mineral fiber product comprises mineral fibers bound together by a cured binder composition, and the uncured binder composition comprises one or more lignosulfonates and lignins.

[0191] Generally, heating the above mineral fiber product to a temperature of 600°C is preferable to release less than 2000 μg of isocyanic acid (ICA) per gram of sample, for example less than 1000 μg of isocyanic acid (ICA) per gram of sample, for example less than 750 μg of isocyanic acid (ICA) per gram of sample, for example less than 600 μg of isocyanic acid (ICA) per gram of sample as gas. The method for determining the total amount of ICA released is described below.

[0192] A mineral fiber product for covering a pipe according to the present invention may have all the features described above for the mineral fiber product of the present invention, and therefore refer to them. [Examples]

[0193] Measurement of solid content (loss on ignition (LOI)) The amount of organic material (loss on ignition) is determined as the weight loss of the sample obtained by burning (removing by combustion) of the organic material, measured at 590°C. Typically, the organic material consists of a binder and impregnation oil. This is done as specified in EN13820:2003. The binder content is denoted as the LOI (Liquid Intake). The binder includes oil and other binder additives, if present.

[0194] Determination of the maximum operating temperature The maximum operating temperature for mineral fiber products was determined according to the maximum operating temperature plate test of standard EN14706:2012.

[0195] Determination of Binder Solids Content The contents of the binder after hardening are called "binder solids."

[0196] Disk-shaped stone wool samples (5 cm in diameter; 1 cm in height) were cut from the stone wool and heat-treated at 580°C for at least 30 minutes to remove all organic matter. The solid content of the binder mixture was measured by distributing a sample of the binder mixture (approximately 2 g) onto the heat-treated stone wool discs in a tin foil container. The weight of the tin foil containers containing the stone wool discs was weighed before and immediately after the addition of the binder mixture. Two stone wool discs were prepared by filling the tin foil containers with such binder mixtures, and then heated at 200°C for 1 hour. After cooling and storage at room temperature for 10 minutes, the samples were weighed and the binder solid content was calculated as the average of the two results.

[0197] Unless otherwise specified, the following reagents were used as they were obtained.

[0198] Lignosulfonate: The lignosulfonates were supplied as liquids with a solid content of approximately 50% by Borregaard, Norway, and LignoTech, Florida. PEG200: Supplied by Sigma-Aldrich, and for simplicity, it was assumed to be anhydrous and used as is. Primid XL552: Hydroxyalkylamide crosslinking agent supplied by EMS-CHEMIE AG. Momentive VS-142: Silquest® VS-142 is an aqueous oligomeric aminosilane supplied by Momentive.

[0199] Comparative Example 1 A mixture of 75.1% aqueous glucose syrup (19.98 kg; therefore efficiently equivalent to 15.0 kg glucose syrup), 50% hypophosphorous acid aqueous solution (0.60 kg; therefore efficiently equivalent to 0.30 kg, 4.55 mol hypophosphorous acid), and sulfamic acid (0.45 kg, 4.63 mol) in water (30.0 kg) was stirred at room temperature until a clear solution was obtained. Then, 28% aqueous ammonia (0.80 kg; therefore efficiently equivalent to 0.22 kg, 13.15 mol ammonia) was added dropwise until the pH reached 7.9. The binder solids content was then measured (21.2%). To obtain a suitable binder composition (15% binder solids solution, 0.5% silane of the binder solids), the above binder mixture was diluted with water (0.403 kg / kg binder mixture) and 10% silane aqueous solution (0.011 kg / kg binder mixture, Momentive VS-142). The final binder mixture had a pH of 7.9.

[0200] Mineral fiber products, 100mm thick, 145kg / m³ density. 3 It was prepared with an LOI of 2.5%. The common method for manufacturing mineral fiber products as described above was used.

[0201] The prepared mineral fiber products were tested as described in Protocol I. The results are shown in Table A below.

[0202] In the following examples, several mineral wool products containing a binder that falls under the definition of the present invention were prepared and compared with mineral wool products containing a binder according to the prior art.

[0203] Percentages (%) refer to weight percentages unless otherwise explicitly stated.

[0204] The following characteristics were measured for a mineral wool product containing the binder according to the present invention and a mineral wool product containing the binder according to the prior art.

[0205] Measurement of isocyanate (ICA) release The total amount of ICA released as gas from mineral fiber products containing a cured binder composition can be measured in accordance with Protocol I below. The same Protocol I can be used to analyze the total amount of released HCN.

[0206] Protocol I Samples of mineral wool products were analyzed by thermal testing. The thermal test system consists of a temperature-adjustable tubular furnace provided with a quartz glass tube connected to a GASMET DX4000 FTIR (Fourier Transform Infrared Spectroscopy) analyzer via a heat-traced transport pipe. The tube inside the tubular furnace is a quartz tube (diameter 23 mm, length: 800 mm, thickness: 2.0 mm) having conical female glass joints NS24 / 29 at both ends. The tubular furnace used is model R30 / 500 / 12-B170 manufactured by Nabertherm.

[0207] The GASMET analyzer is equipped with an internal pump that supplies the necessary amount of gas for performing appropriate analysis of the gas. The quartz glass tube is open to the surroundings, ensuring that an appropriate amount of carrier gas carrying the gas released from the test specimen is sent to the analyzer.

[0208] The mineral wool product was homogenized by crushing. Approximately 2 g of the sample was weighed, evenly distributed in a porcelain crucible, and loaded into the quartz tube at a pre-adjusted temperature. The current test temperature of the sample was monitored by a thermocouple. Air is passed through the tube at a rate of 3 L / min at 25° C. throughout the entire test.

[0209] Before any test run, the system was tested for leakage and cleanliness of the quartz tube by analyzing the air passing through the system. Cleanliness was only acceptable when the test gas was 0 ppm. If a value exceeding 0 ppm was obtained, cleaning of the quartz tube was performed.

[0210] All sample points were repeated three times to ensure high reliability of the measured values.

[0211] GASMET data sampling was initiated during sample loading (injection). The sampling frequency was adjusted to 30 seconds, followed by approximately 2 seconds of processing, resulting in an average duration of 32 seconds for each sample point.

[0212] GASMET accuracy is 8cm -1 That is the case.

[0213] Samples were monitored during data collection to observe the burn time of all released species. Data collection was stopped when the response from all species decreased to zero or a stable near-zero level. Samples collected at 250°C and 350°C stopped burning after approximately one hour, while samples collected at 450°C and 600°C burned more quickly, sometimes to near-zero values ​​in just a few minutes.

[0214] The spectra were analyzed using Calcmet Software. The system was pre-calibrated for each species.

[0215] The releases from each sample were individually processed by measuring the precise time elapsed from when the seeds began to be released until the release level dropped to zero or near zero.

[0216] The integral under the curve is performed by summing up the individually measured contributions (approximating it as a numerical integral).

[0217] The total amount released is calculated by considering the sample weight, molar volume at 0°C and 1 atm, the applied gas flow, and the molecular weight of the released species. The results are given in units of "micrograms / gram sample".

[0218] example At 250°C, the average ICA release from a sample of 1.501g was recorded at a flow rate of 3 liters / min over 34 minutes at 2.35 ppm. This yields a sample of 2.35 ppm ICA × 43.03 g / mol / 22.4 liters × 34 minutes × 3 liters / min / 1.501g = 306 μg / g.

[0219] Comparative Example 2 This binder is urea-modified phenol-formaldehyde resin, PUF-resol.

[0220] The phenol-formaldehyde resin is prepared by reacting 606 kg of 37% formaldehyde aqueous solution and 189 kg of phenol in the presence of 25.5 kg of 46% potassium hydroxide aqueous solution at a reaction temperature of 84°C, with the temperature increasing at a rate of approximately 1°C per minute. This reaction continues at 84°C until the resin's acid resistance reaches 4 and most of the phenol is converted. Then, 241 kg of urea is added and the mixture is cooled.

[0221] Acid tolerance (AT) represents the number of times a given amount of binder can be diluted with acid without the mixture becoming cloudy (the binder precipitating). Sulfuric acid is used to determine the termination criteria in binder manufacturing, and an acid tolerance of less than 4 indicates the end of the binder reaction.

[0222] To measure AT, prepare a titrant by diluting 2.5 ml of concentrated sulfuric acid (>99%) with 1 L of deionized water. Then, titrate 5 mL of the binder to be examined with this titrant at room temperature, keeping the binder moving by manual shaking. If preferred, use a magnetic stirrer and magnetic stirring rod. Continue titration until a slight cloudiness appears on the binder that does not disappear when the binder is shaken.

[0223] Acid resistance (AT) is calculated by dividing the amount of acid (mL) used in the titration by the amount of sample (mL). AT = (Titration volume used (mL)) / (Sample volume (mL))

[0224] Using the obtained urea-modified phenol-formaldehyde resin, a binder is prepared by adding 25% aqueous ammonia (90 L) and ammonium sulfate (13.2 kg), followed by the addition of water (1300 kg).

[0225] Next, the binder solids content was measured as described above, and this mixture was diluted with the required amount of water and silane for mechanical measurement.

[0226] A mineral fiber product in the form of a pipe section element, with a thickness of 40 mm (inner diameter 219 mm), a density of 100 kg / m 3 was prepared at an LOI of 3.5% by weight. A common method for manufacturing mineral fiber products as described in the above description is used.

[0227] The prepared mineral fiber product was tested as described in Protocol I. The results are shown in Table A below.

[0228] Example 1 The stone wool product was manufactured using the binder of Example 1 at a curing oven temperature set to 255°C.

[0229] 730.0 kg of ammonium lignosulfonate was placed into a mixing vessel, to which 8.5 L of NH4OH (24.7%) was added and stirred. Thereafter, 151 kg of Primid XL552 solution (previously prepared 31 wt% aqueous solution) and 43 kg of PEG 200 (100% solids) were added and mixed, followed by addition of 13 kg of silane (Momentive VS-142 40% activity, 10% aqueous solution) and 40 kg of silicone (Wacker BS 1052, 12% aqueous solution).

[0230] The binder from this example is used to manufacture a high-density stone wool product having a thickness of 100 mm and a density of 145 kg / m 3 . This insulating element has a loss on ignition (LOI) of 3.5% by weight. The curing oven temperature was set to 255°C.

[0231] Heat releases from Example 1 and Comparative Examples 1 and 2 The mineral fiber products of Example 1 and Comparative Examples 1 and 2 were tested according to Protocol I above for their release characteristics with respect to isocyanic acid (ICA) and HCN at temperatures of 250°C, 350°C, 450°C and 600°C, respectively.

[0232] The results are shown in Table A below. The given output values ​​are the average release amounts of each species per gram of sample (μg / g sample).

[0233] [Table 1]

[0234] Since the release amounts of the three tested mineral wool products were obtained, it becomes possible to rank the total release amounts from the system relative to each other.

[0235] Maximum operating temperature test of Example 1 The properties of the product in Example 1 were tested according to the following test method: maximum operating temperature plate test; EN14706:2012 for demonstrating thermal stability at high temperatures in mineral wool products. The product was tested multiple times.

[0236] The maximum operating temperature value for Example 1 was measured to be ST(+) = 660°C ± 10°C. This value is consistent with the selected test temperature of ST(+) = 660°C.

Claims

1. A mineral fiber product for thermal insulation, comprising mineral fibers bound together by a cured binder composition, and in the form of a pre-formed pipe section, The uncured binder composition is A mineral fiber product comprising one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignins, wherein heating the mineral fiber product containing the cured binder composition to a temperature of 600°C releases less than 2000 μg of isocyanic acid (ICA) per gram of sample as a gas.

2. The mineral fiber product according to claim 1, wherein heating the mineral fiber product to a temperature of 600°C releases less than 1000 μg of isocyanic acid (ICA) per gram of sample as a gas.

3. The mineral fiber product according to claim 1 or 2, wherein the mineral fiber product has a thickness in the range of 20 mm to 500 mm.

4. The mineral fiber product according to any one of claims 1 to 3, wherein heating the mineral fiber product to a temperature of 600°C releases less than 600 μg of HCN per gram of sample as a gas.

5. The uncured binder composition is Component (i) in the form of a lignosulfonate lignin having one or more lignosulfonate lignins, wherein the carboxylic acid group content is 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignin, One or more crosslinking agents as components (ii), Optionally, one or more plasticizer components (iii) and A mineral fiber product according to any one of claims 1 to 4, including the following:

6. The mineral fiber product according to any one of claims 1 to 5, wherein the one or more lignosulfonate lignins have a carboxylic acid group content of 0.03 to 1.4 mmol / g based on the dry weight of the lignosulfonate lignins.

7. The aforementioned component (ii) is, β-hydroxyalkylamide crosslinking agent, and / or Oxazoline crosslinking agent, and / or A group consisting of polyfunctional organic amines, diamines, and / or An epoxy compound having a molecular weight greater than 500, or one or more flexible oligomers or polymers containing a reactive functional group, and / or One or more crosslinking agents selected from the group consisting of fatty amines, and / or One or more crosslinking agents in the form of fatty amides, and / or One or more crosslinking agents selected from polyester polyols, and / or One or more crosslinking agents selected from the group consisting of starch, modified starch, and CMC, and / or One or more crosslinking agents in the form of polyfunctional carbodiimides, and / or One or more crosslinking agents selected from melamine-based crosslinking agents The mineral fiber product according to claim 5, which is in the form of one or more crosslinking agents selected from the above.

8. The aforementioned component (ii) is, A β-hydroxyalkylamide crosslinking agent selected from N-(2-hydroxyisopropyl)amide crosslinking agents, N-(2-hydroxyethyl)amide crosslinking agents, N-(2-hydroxyethyl) adipoamide crosslinking agents, and / or N,N,N',N'-tetrakis(2-hydroxyethyl) adipoamide. A polyfunctional organic amine selected from alkanolamines and diamines, and / or An epoxy compound having a molecular weight greater than 500 selected from epoxidized oils based on fatty acid triglycerides, or one or more flexible oligomers or polymers containing a reactive functional group selected from a carbodiimide group, anhydride group, oxazoline group, amino group, epoxy group, and / or One or more crosslinking agents in the form of polyfunctional carbodiimides selected from aliphatic polyfunctional carbodiimides. The mineral fiber product according to claim 5, which is in the form of one or more crosslinking agents.

9. The aforementioned component (iii) is, One or more plasticizers selected from the group consisting of fatty alcohols and monohydroxy alcohols, and / or Plasticizers comprising alkoxylates, and / or One or more plasticizers in the form of propylene glycol, and / or One or more plasticizers in the form of glycol esters, and / or One or more plasticizers selected from the group consisting of adipate, acetate, benzoate, cyclobenzoate, citrate, stearate, sorbate, sebacate, azelate, butyrate, and valerate, and / or One or more plasticizers selected from the group consisting of phenol derivatives, and / or One or more plasticizers selected from the group consisting of silanols and siloxanes, and / or One or more plasticizers selected from the group consisting of sulfates, sulfonates, and phosphates, and / or One or more plasticizers in the form of hydroxy acids, and / or One or more plasticizers selected from monomer amides, and / or One or more plasticizers selected from quaternary ammonium compounds, and / or One or more plasticizers selected from vegetable oils, and / or Tall oil, and / or One or more plasticizers selected from the group consisting of hardened oils and acetylated oils, and / or One or more plasticizers selected from methyl acid esters, and / or One or more plasticizers selected from the group consisting of alkyl polyglucosides, gluconamides, aminoglucoseamides, sucrose esters, and sorbitan esters, and / or One or more plasticizers selected from the group consisting of polyethylene glycol and polyethylene glycol ether, and / or Plasticizers comprising polyols, and / or Triethanolamine The mineral fiber product according to claim 5, which is included in the uncured binder composition in the form of one or more plasticizers selected from the above.

10. The mineral fiber product according to any one of claims 1 to 9, wherein the mineral fiber product satisfies the condition of a maximum operating temperature of at least 600°C according to the maximum operating temperature plate test of EN14706:2012.

11. The mineral fiber product according to any one of claims 1 to 10, wherein the total amount of ICA released as gas from the mineral fiber product containing the cured binder composition is measured according to protocol I described in the specification.

12. The mineral fiber product according to any one of claims 1 to 11, wherein the mineral fiber product has a loss on ignition (LOI) of 0.25 to 6.0% by weight.

13. Use of a mineral fiber product according to any one of claims 1 to 12, comprising mineral fibers bound by a cured binder composition at a temperature of at least 300°C, wherein the uncured binder composition comprises one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignins, and optionally, heating the mineral fiber product to a temperature of 600°C releases less than 2000 μg of isocyanate (ICA) as a gas per gram of sample.

14. The use of the mineral fiber product as pipe insulation material according to claim 13.

15. The aforementioned use is at temperatures of at least 400°C and / or up to 700°C, or The aforementioned mineral fiber product is used as pipe insulation, and the pipes are operated at high operating temperatures of at least 400°C and / or up to 700°C. The use described in claim 13 or claim 14.

16. The use according to claim 15, wherein the pipe is a metal pipe.

17. The use according to claim 15, wherein a gas, vapor, or fluid medium is transported in the pipe.

18. A method of transporting a medium, a) A process of covering the pipe with a mineral fiber product as pipe insulation, b) A step of transporting the medium through the pipe and A method comprising: a mineral fiber product comprising mineral fibers bound by a cured binder composition, the uncured binder composition comprising one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignins, and optionally, heating the mineral fiber product to a temperature of 600°C to release less than 2000 μg of isocyanic acid (ICA) per gram of sample as a gas.

19. The method according to claim 18, wherein the medium being transported has a temperature of at least 300°C and / or up to 700°C.

20. The method according to claim 18 or claim 19, wherein the mineral fiber product is the mineral fiber product according to any one of claims 1 to 8.

21. A pipe coated with a mineral fiber product as an insulating material, wherein the mineral fiber product comprises mineral fibers bound together by a cured binder composition, and the uncured binder composition comprises one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol / g based on the dry weight of the lignosulfonate lignins, and optionally, heating the mineral fiber product to a temperature of 600°C releases less than 2000 μg of isocyanate (ICA) per gram of sample as a gas.

22. The pipe according to claim 21, wherein the mineral fiber product is the mineral fiber product according to any one of claims 1 to 9.

23. The mineral fiber product according to any one of claims 1 to 12, wherein the one or more lignosulfonate lignins have a carboxylic acid group content of 0.05 to 0.6 mmol / g based on the dry weight of the lignosulfonate lignins.

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