A curable aqueous composition is disclosed comprising a carbohydrate, a crosslinking agent, and an amine base, wherein the curable aqueous composition has a pH adjusted by the amine base. Further disclosed is a method of forming a curable aqueous solution.

Binders and materials made therewith

An aqueous binder composition is provided that includes a carbohydrate and a crosslinking agent. In exemplary embodiments, the carbohydrate-based binder composition may also include a catalyst, a coupling agent, a process aid, a crosslinking density enhancer, an extender, a moisture resistant agent, a dedusting oil, a colorant, a corrosion inhibitor, a surfactant, a pH adjuster, and combinations thereof. The carbohydrate may be natural in origin and derived from renewable resources. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In at least one exemplary embodiment, the carbohydrate is a water-soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, the carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally friendly, formaldehyde-free binder may be used in the formation of insulation materials and non-woven chopped strand mats. A method of making fibrous insulation products is also provided.

Bio-based binders for insulation and non-woven mats

La presente invention se rapporte a une composition d'encollage pour des produits isolants a base de laine minerale, notamment de verre ou de roche, qui comprend au moins un monosaccharide et/ou au moins un polysaccharide, et au moins un acide organique polycarboxylique ayant une masse molaire inferieure ou egale a The present invention relates to a sizing composition for insulating products based on mineral wool, especially glass or rock, which comprises at least one monosaccharide and / or at least one polysaccharide and at least one organic polycarboxylic acid having a molar mass less than or equal to 1000. Elle a egalement pour objet les produits isolants a base de fibres minerales obtenus et leur procede de fabrication. 1000. It also relates to insulation products based on mineral fibers obtained and their manufacturing process.

Mineral wool sizing composition comprising a monosaccharide and/or a polysaccharide and an organic polycarboxylic acid, and insulating products obtained

Crosslinking systems suitable for use in a polymer melt composition wherein the polymer melt composition comprises a hydroxyl polymer; polymeric structures made from such polymer melt compositions; and processes/methods related thereto are provided.

Crosslinking systems for hydroxyl polymers

A method of manufacturing a mineral fibre thermal insulation product comprises the sequential steps of: • Forming mineral fibres from a molten mineral mixture; • spraying a substantially formaldehyde free binder solution on to the mineral fibres, the binder solution comprising: a reducing sugar, an acid precursor derivable from an inorganic salt and a source of nitrogen; • Collecting the mineral fibres to which the binder solution has been applied to form a batt of mineral fibres; and • Curing the batt comprising the mineral fibres and the binder which is in contact with the mineral fibres by passing the batt through a curing oven so as to provide a batt of mineral fibres held together by a substantially water insoluble cured binder.

Mineral wool insulation

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.

Formaldehyde-free aqueous binder composition for mineral fibers

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.

Aqueous binder for mineral fibers

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.

Nissen Povl

Papers

Formaldehyde-free aqueous binder composition for mineral fibers

Aqueous binder for mineral fibers

Urea-modified binder for mineral fibres

Formaldehydfreie wässrige bindemittelzusammensetzung für mineralfasern

Fremgangsmaade til fremstilling af et bindemiddel ved kondensation af phenol, formaldehyd og urinstof