Binders
OwnerCarl Hampson, Gert Mueller +1inventors
InventorsCarl Hampson, Gert Mueller, Charles Appley
Life of this patent
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Abstract
An un-reacted substantially formaldehyde free curable binder solution for binding loose matter consists essentially of a solution obtainable by dissolving a reducing sugar, an ammonium salt acid precursor optionally a carboxylic acid or a precursor thereof and optionally ammonia in water.
Claims17
A substantially formaldehyde free binder solution consisting essentially of a solution obtainable by dissolving
- a reducing sugar, and
- at least 2.5% by dry weight with respect to the reducing sugar of a material selected from the group consisting of ammonium sulphate salts, ammonium phosphate salts, ammonium nitrate salts, ammonium carbonate salts, and combinations thereof
- in water.
A material comprising a collection of loose matter and uncured or partially cured substantially formaldehyde free binder characterised in that the binder has a pH of greater than 6 when dissolved in water and comprises
- a reducing sugar, and
- at least 2.5% by dry weight with respect to the reducing sugar of an ammonium salt selected from the group consisting of ammonium sulphate salts, ammonium phosphate salts, ammonium nitrate salts, ammonium carbonate salts, and combinations thereof.
Dependencies are inferred from the claim text.