摘要:
A method of reducing the formaldehyde emission of a mineral fibre product bonded with a urea-modified phenol-formaldehyde resol resin-type binder comprises the step of adding dextrose to the binder composition during and/or after preparation of the binder composition but before curing of the binder composition applied to the mineral fibres.
摘要:
Described is an aqueous binder composition for mineral fibres comprising a component (i) in the form of one or more compounds selected from -compounds of the formula, and any salts thereof Formula (I): in which R1 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, amine; -compounds of the formula, and any salts thereof Formula (II): in which R2 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, amine; a component (ii) in the form of one or more compounds selected from the group of ammonia, amines or any salts thereof; a component (iii) in the form of one or more carbohydrates; a component (iv) in the form of one or more compounds selected from sulfamic acid, derivatives of sulfamic acid or any salt thereof.
摘要:
The present invention is directed to a mineral wool product comprising mineral fibers bound by an organic formaldehyde-free binder comprising carbohydrate in its uncured state, wherein heating of the mineral wool product to a temperature of approximately 225 °C off-gases less than 25 g VOC (Volatile Organic Content) per kg binder.
摘要:
Described is an aqueous binder composition for mineral fibers comprising - a component (i) in form of one or more carbohydrates; - a component (ii) in form of one or more compounds selected from sulfamic acid, derivatives of sulfamic acid or any salt thereof.
摘要:
An aqueous binder composition for mineral fibres comprises: (1) a water-soluble binder component obtainable by reacting at least one alkanolamine with at least one polycarboxylic acid or anhydride and, optionally, treating the reaction product with a base; (2) a sugar component; and (3) urea, the proportion of components (1), (2) and (3) being within the range of 10 to 80 wt.% of (1), 15 to 80 wt.% of (2), and 5 to 60 wt.% of (3), based on the solids content of components (1), (2) and (3) as measured after heat treatment for 1 hour at 200°C.
摘要:
An aqueous binder composition for mineral fibers comprises: - a water-soluble binder component obtainable by reacting at least one alkanolamine with at least one carboxylic anhydride and, optionally, treating the reaction product with a base; and - at least one hydrolytic stability-improving agent selected from monoalkanolamines; allylamines; peroxy compounds; epoxy compounds; compounds having at least one long-chain aliphatic moiety and at least one functional group; and SBR latices.
摘要:
A formaldehyde-free aqueous binder composition comprises a binder component (A) obtainable by reacting at least one alkanolamine with at least one carboxylic anhydride and, optionally, treating the reaction product with a base; and a binder component (B) which comprises at least one carbohydrate. The binder composition is particularly useful for bonding mineral fiber products.
摘要:
An acoustical ceiling panel is provided having a core with a front face and a back face composed of air laid mineral fibers and an aqueous binder. The aqueous binder includes a first component in the form of one or more carbohydrates, and a second component in the form of one or more compounds selected from sulfamic acid, derivatives of sulfamic acid, and any salts thereof, ammonia and hypophosphorous acid. A formaldehyde-free first fleece having a thickness is secured to the front face of the core by powdered adhesive and a formaldehyde-free second fleece having a thickness is secured to the back face of the core by the aqueous binder, with the thickness of the first fleece being greater than the thickness of the second fleece. Paint is applied to the first fleece. The acoustical ceiling panel has formaldehyde emissions of below 8 µg/m 2 /h of formaldehyde, preferably below 5 µg/m 2 /h, most preferably below 3 µg/m 2 /h, in accordance with ISO 16000 for testing aldehyde emissions.
摘要:
The invention relates to an aqueous binder composition for mineral fibers com- prising a component (i) in the form of one or more compounds selected from -compounds of the formula, and any salts thereof. In which R1 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, amine; -compounds of the formula, and any salts thereof. In which R2 corresponds to H, alkyl, monohydroxyalkyl, dihydroxyalkyl, polyhydroxyalkyl, alkylene, alkoxy, amine; a component (ii) in the form of one or more compounds selected from the group of ammonia, amines or any salts thereof; a component (iii) in the form of one or more carbohydrates.