Reduced salt precipitation in carbohydrate containing binder compositions
US9718981B2 · kind B2 · utility
1Cited by
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28Claims
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Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jun 28, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods of reducing salt precipitation from a binder composition are described. The methods may include the steps of providing an aqueous binder solution having one or more carbohydrates. They may also include adding a sequestrant for one or more multivalent ions to the aqueous binder solution. The sequestrant reduces a precipitation rate for the multivalent ions from the binder composition. The binder composition may include a polymerization catalyst. Exemplary sequestrants may include polycarboxylic acids or anhydrides. Exemplary sequestrant concentrations may range from about 2 wt. % or less of the aqueous binder solution.
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