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

A surface-modified fibrous material is provided for incorporation in a thermoplastic matrix to form a fiber-reinforced composite article. Good binding between the fibrous material and the thermoplastic matrix is achieved through the presence of finely roughened surfaces on the fibers of nanoparticles of an inorganic material. Such nanoparticles are provided from an alkaline aqueous size composition containing the nanoparticles dispersed therein (as described). The fibrous material may be provided in continuous or discontinuous form. In a preferred embodiment glass fibers are initially provided in continuous form followed by cutting into discontinuous lengths and drying with the retention of the nanoparticles on the surfaces of the fibers. The surface-roughened fibrous material is incorporated in a thermoplastic matrix as fibrous reinforcement with the application of heat whereby the thermoplastic matrix is rendered melt processable. In preferred embodiments injection or compression molding is utilized. Improved long-fiber thermoplastics also may be formed to advantage.

Modified fibers for use in the formation of thermoplastic fiber-reinforced composite articles and process

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 polycarboxy binder composition that contains a dextrin as a co-binder is provided. The dextrin co-binder may be a dextrin, a modified dextrin, a maltodextrin, or combinations thereof. The dextrin may be chemically modified. A pre-binder composition is formed that contains a polycarboxy polymer, a crosslinking agent, and optionally a catalyst. The polycarboxy polymer may be a homopolymer or copolymer prepared from unsaturated carboxylic acids and may be modified to contain one or more vinyl compounds. The crosslinking agent may be a polyol that contains at least two hydroxyl groups. The pre-binder composition may be formed by admixing the polycarboxy polymer, the crosslinking agent, and optionally, the catalyst, in a mixing device. Dextrin may be added to the pre-binder composition in an amount of from 10-75% of the total binder composition. The dextrin binder composition may have a ratio of from approximately 90:10 to 25:75 pre-binder:dextrin co-binder.

Dextrin binder composition for heat resistant non-wovens

A fiber-size composition contains a modified polyolefin, a hydrophilic coupling agent, and an enhancer with at least one of the following: a fluorine-containing compound, a hydrophobic coupling agent, a cyclic fatty acid, or at least two saturated fatty acids with at least one of said fatty acids having at least two acid groups When reinforcing fiber materials sized with the composition are used to form composite articles, the articles show improved properties such as strength and color

Fiber size, sized reinforcements, and articles reinforced with sized reinforcements

A coating composition that improves fiber dispersion and mechanical properties in reinforced composite articles is provided. The coating composition includes a chemical compound that acts as an emulsifier, a surfactant, and a melt viscosity reducer. In at least one exemplary embodiment, the chemical compound is an ethoxylated fatty acid or an ethoxylated fatty alcohol compound. The coating composition may be applied to the reinforcing fiber strand after a conventional sizing composition has been applied to the reinforcing fiber and prior to wire coating the fiber with a thermoplastic resin. The coated/sized fiber strands may be chopped to form chopped strand segments and then densified or compacted to form a densified reinforcing fiber product, such as pellets. These pellets, in turn, may be used to form polymer reinforced composite articles. In alternative embodiments, the coating composition may be applied directly to the reinforcement fibers directly after fiber formation under the bushing.

Chemical coating composition for glass fibers for improved fiber dispersion

A two-part sizing formulation that imparts .improved strength of reinforced composites including a size composition and a binder composition is provided. The size composition may include one or more coupling agents and one or more film forming agents. The binder composition includes a high acid number copolymer formed from the polymerization of maleic anhydride or maleic acid and at least one other desired monomer and/or a high acid number polycarboxylic acid. In a preferred embodiment, the binder composition includes an ethylene-maleic acid copolymer formed by the hydrolysis of an ethylene maleic anhydride copolymer. The size composition may be applied to a reinforcing fiber material before the binder size material is applied. The two-part size composition may be applied to a reinforcing fiber material to form a reinforcing fiber product which may then be densified or compacted to form a densified reinforcing fiber product, such as a pellet.

Jean-Marc Henrion

Papers

Dextrin binder composition for heat resistant non-wovens

Fiber size, sized reinforcements, and articles reinforced with sized reinforcements

Chemical coating composition for glass fibers for improved fiber dispersion

Two-part sizing composition for reinforcement fibers

Schlichtemittel-kombination für faserverstärkungsmaterial mit niedriger entfärbung