Goods & Services

(1) Chemicals used in industry, specifically for adhesion and binding applications in woodworking, construction, metal finishing and vehicle component manufacturing industry; unprocessed artificial resins, specifically used in adhesives, binders and impregnation and coating of materials; adhesives used in industry, namely the woodworking industry, construction industry, metal finishing industry, and vehicle component manufacturing industry; urea-melamine-phenol- and resorcinol-formaldehyde resins used in industry, specifically for manufacturing of wood based panels, furniture, structural beams, veneering and plywood; chemical based adhesives used in industry, specifically for building, bookbinding, labelling and stickers, paper, packaging pressure-sensitive tapes and shoe application purposes; chemical based binders used in industry, specifically for insulation materials, paper impregnation, non-woven fabrics, glass fibre tissue, foundry moulds, refractory goods, abrasives and grinding wheels, tires, brakes, filtering media, floral foam, insulation foam, mining foam, battery separators, moulded composites, textile felts for headliners and acoustic parts.

Abstract

The invention relates to an aldehyde based resin composition that has an ultralow formaldehyde (ULF) emission both on curing and from the final cured product and to the use thereof as a binder or adhesive for the manufacture of mineral wool (glass fibre and stone fibre) products, non-woven materials, wooden boards, plywood, coated materials and/or impregnated material products. The invention further relates to a process for the manufacture of the resin composition, to a sizing composition for use in mineral wool applications, to a sizing composition for use in saturation or impregnation applications, and to a curable aqueous composition for use in board and wood applications, comprising the aldehyde resin composition according to the invention. The aldehyde based resi n composition, preferably formed by reaction of one or more hydroxy aromatic and/or one or more amino functional compounds (I) with one or more aldehyde functional compounds (II), contains one or more reducing sugars or a reducing sugar in the form of a carbohydrate feedstock with the bulk properties of a reducing sugar (III) with a dextrose equivalent (DE) value of at least 15, preferably at least 25, more preferably at least 50, even more preferably at least 75, and most preferably greater than 90, and optionally a cyanamide (IV).

IPC Classes  ?

• C08G 8/00 - Condensation polymers of aldehydes or ketones with phenols only
• B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
• B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
• C08G 12/00 - Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
• C08K 5/053 - Polyhydroxylic alcohols
• C08L 61/00 - Compositions of condensation polymers of aldehydes or ketonesCompositions of derivatives of such polymers
• C08L 61/20 - Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
• C08L 61/32 - Modified amine-aldehyde condensates
• D06M 15/507 - Polyesters

Abstract

The present invention provides process for the manufacture of an aqueous resin composition comprising a phenolic formaldehyde (PF) resin, which process comprises the steps of:providing a formaldehyde and phenolic compound, reacting said compounds in a condensation reaction in the presence of a catalyst, after completion of the condensation reaction to react with free formaldehyde, determining the free formaldehyde content of the resin composition, adding a pre-calculated substantially stoichiometric amount of modifying compound containing a primary amine group to reduce the amount of free formaldehyde in the resin composition to less than 0.1 wt% (relative to the total weight of the aqueous resin composition), and optionally distillation of the reaction product.

IPC Classes  ?

• C08G 8/28 - Chemically modified polycondensates
• C09G 1/02 - Polishing compositions containing abrasives or grinding agents
• B24D 3/28 - Resins

Abstract

A formaldehyde-free curable aqueous composition comprising an adduct of (a) carbohydrate polymer and (b) a multi-functional crosslinking agent such as a polybasic acid may be used as a binder for non-woven products such as fiberglass insulation.

IPC Classes  ?

• C09D 103/06 - Esters

Abstract

A formaldehyde-free curable aqueous composition containing polyvinyl alcohol, a multi-functional crosslinking agent, and, optionally, a catalyst. The composition may be used as a binder for non-woven products such as fiberglass insulation. The non-woven products are formed by contacting the formaldehyde-free curable aqueous composition with fibrous components and the mixture is cured to form a rigid thermoset polymer providing excellent strength and water resistance of the cured nonwoven product.

IPC Classes  ?

• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08G 4/00 - Condensation polymers of aldehydes or ketones with polyalcoholsAddition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping —O—C—O—