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US 6,706,853 B1Granted
Compound for use as a mineral fibre binder and process for providing such
AssigneeRockwool International A/S
InventorsDirk Armand Wim Stanssens, Thor Husemoen, Erling Lennart Hansen
Life of this patent
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Abstract
Compound or salts thereof suitable for use as a binder for mineral fibers, for example glass or stone wool, said compound containing a carboxylic acid group and/or a β-hydroxyalkyl amide group.
Claims44
A process for preparing a water-soluble resin for use as a mineral wool binder, said process comprising the step of mixing together under reactive conditions, a cyclic anhydride and an alkanolamine to form a range of reaction products forming the components of the binder resin.
A binder for binding mineral fibres, said binder consisting essentially of:
- the reaction products of a cyclic anhydride and an alkanolamine, wherein one or more of the resulting reaction products contain one or more carboxylic acid groups which provide a cross-linking function within the binder,
- which reaction products of the cyclic anhydride and the alkanolamine exhibit water solubility.
Dependencies are inferred from the claim text.